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• not saving when using setDidReceiveDataSelector

  - by coder4xc

  i want to download a file and show the progress bar i was able to do this. now , i want to show the progress value in a label and use this code to progress init and update label : [queue setDelegate:self]; [queue setRequestDidFinishSelector:@selector(updateLabel)]; [queue setDownloadProgressDelegate:progress]; [queue setShowAccurateProgress:YES]; ASIHTTPRequest *request; request = [ASIHTTPRequest requestWithURL:url]; [request setDelegate:self]; [request setTemporaryFileDownloadPath:[filePath stringByAppendingString:@".download"]]; [request setAllowResumeForFileDownloads:YES]; [request setDidFinishSelector:@selector(updateLabel)]; [request setDidReceiveDataSelector:@selector(updateLabel)]; [request setShouldContinueWhenAppEntersBackground:YES]; [request setShouldAttemptPersistentConnection:NO]; [request setDownloadDestinationPath:filePath]; [queue addOperation:request]; [queue go]; but not save in the destination path ! and when i clear this code :  [request setDidReceiveDataSelector:@selector(updateLabel)]; saving done ! what is problem ? i want to update label text when progress value changed

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• Adapting pseudocode to java implementation for finding the longest word in a trie

  - by user1766888

  Referring to this question I asked: How to find the longest word in a trie? I'm having trouble implementing the pseudocode given in the answer. findLongest(trie): //first do a BFS and find the "last node" queue <- [] queue.add(trie.root) last <- nil map <- empty map while (not queue.empty()): curr <- queue.pop() for each son of curr: queue.add(son) map.put(son,curr) //marking curr as the parent of son last <- curr //in here, last indicate the leaf of the longest word //Now, go up the trie and find the actual path/string curr <- last str = "" while (curr != nil): str = curr + str //we go from end to start curr = map.get(curr) return str This is what I have for my method public static String longestWord (DTN d) { Queue<DTN> holding = new ArrayQueue<DTN>(); holding.add(d); DTN last = null; Map<DTN,DTN> test = new ArrayMap<DTN,DTN>(); DTN curr; while (!holding.isEmpty()) { curr = holding.remove(); for (Map.Entry<String, DTN> e : curr.children.entries()) { holding.add(curr.children.get(e)); test.put(curr.children.get(e), curr); } last = curr; } curr = last; String str = ""; while (curr != null) { str = curr + str; curr = test.get(curr); } return str; } I'm getting a NullPointerException at: for (Map.Entry<String, DTN> e : curr.children.entries()) How can I find and fix the cause of the NullPointerException of the method so that it returns the longest word in a trie?

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• jquery .animate - image gets cropped during animation

  - by stef

  Hello all, I am currently programming a carousel with javascript using the jquery library. Basically, there are three images shown, the central image being bigger than the two others. Upon going left or right, the central images is resized from 115px*115px to 50px*50px and tossed left or right, depending on the user input. The problem is that when the resize happens, the central image gets gradually cropped until it reaches the 50px*50px and then return to a more normal state: http://www.filedropper.com/imggetscropped Javascript is as follow: $("div#carousel .item:eq(2)").animate({'width':'50px', 'height':'50px', 'opacity':'0.5'}, {queue:false, duration:900}); $("div#carousel .item:eq(2) img").animate({'width':'50px', 'height':'50px', 'marginTop': '30px'}, {queue:false, duration:900}); $("div#carousel .item:eq(1)").animate({'width':'115px', 'height':'115px', 'opacity':'1'}, {queue:false, duration:900}); $("div#carousel .item:eq(1) img").animate({'width':'115px', 'height':'115px', 'marginTop': '0px'}, {queue:false, duration:900}); $("div#carousel .item:not(eq(2))").animate({'left':'+=56px'}, {queue:false, duration:900}); $("div#carousel .item:eq(2)").animate({'left':'+=122px'}, {queue:false, duration:900, complete: carousel.toggleInput}); Images used are png with transparency.

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• Way for Excel VBA to use shadowed chart event handler

  - by Apprentice Queue

  I have a embedded chart and I want to modify the behavior on the mouseDown event but only when it occurs on a dataSeries (xlSeries). But for all other elements (axis, plot area, gridline, etc), I want it to fall back on the default mouseDown behavior. Is this possible? Thanks.

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• Delay command execution over sockets

  - by David

  I've been trying to fix the game loop in a real time (tick delay) MUD. I realized using Thread.Sleep would seem clunky when the user spammed commands through their choice of client (Zmud, etc) e.g. east;south;southwest would wait three move ticks and then output everything from the past couple rooms. The game loop basically calls a Flush and Fill method for each socket during each tick (50ms) private void DoLoop() { Stopwatch stopWatch = new Stopwatch(); stopWatch.Start(); while (running) { // for each socket, flush and fill ConnectionMonitor.Update(); stopWatch.Stop(); WaitIfNeeded(stopWatch.ElapsedMilliseconds); stopWatch.Reset(); } } The Fill method fires the command events, but as mentioned before, they currently block using Thread.Sleep. I tried adding a "ready" flag to the state object that attempts to execute the command along with a queue of spammed commands, but it ends up executing one command and queuing up the rest i.e. each subsequent command executes something that got queued up that should've been executed before. I must be missing something about the timer. private readonly Queue<SpammedCommand> queuedCommands = new Queue<SpammedCommand>(); private bool ready = true; private void TryExecuteCommand(string input) { var commandContext = CommandContext.Create(input); var player = Server.Current.Database.Get<Player>(Session.Player.Key); var commandInfo = Server.Current.CommandLookup .FindCommand(commandContext.CommandName, player.IsAdmin); if (commandInfo != null) { if (!ready) { // queue command queuedCommands.Enqueue(new SpammedCommand() { Context = commandContext, Info = commandInfo }); return; } if (queuedCommands.Count > 0) { // queue the incoming command queuedCommands.Enqueue(new SpammedCommand() { Context = commandContext, Info = commandInfo, }); // dequeue and execute var command = queuedCommands.Dequeue(); command.Info.Command.Execute(Session, command.Context); setTimeout(command.Info.TickLength); return; } commandInfo.Command.Execute(Session, commandContext); setTimeout(commandInfo.TickLength); } else { Session.WriteLine("Command not recognized"); } } Finally, setTimeout was supposed to set the execution delay (TickLength) for that command, and makeReady just sets the ready flag on the state object to true. private void setTimeout(TickDelay tickDelay) { ready = false; var t = new System.Timers.Timer() { Interval = (long) tickDelay, AutoReset = false, }; t.Elapsed += makeReady; t.Start(); // fire this in tickDelay ms } // MAKE READYYYYY!!!! private void makeReady(object sender, System.Timers.ElapsedEventArgs e) { ready = true; } Am I missing something about the System.Timers.Timer created in setTimeout? How can I execute (and output) spammed commands per TickLength without using Thread.Sleep?

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• JbossESB jmsProvider cannot convert IBMMQ JMS Message JMSTextMessage

  - by Himanshu

  I am trying to integrate IBMMQ v6.0.2 with jbossESB. we have local Queue available on IBMMQ on one of our QA QUEUEMANAGER. I am able to listen to the QUEUE using JMSprovider of jboss ESB. As soon as a message (of type jms_text ) is dropped , esb listen to it and pick it up and before it hit the next action it throws following error message. ERROR [JmsComposer] Unsupported JMS message type: com.ibm.jms.JMSTextMessage Here are the steps I followed. jboss-service.mxl : Defined Connection Factory and QUEUE added jars ( com.ibm.mq.* ) to ${jbossesb}/server/${mynode}/lib Added jms lsinterner configuration on jboss-esb.xml Please guide me what I m missing here... Do I need to create custom MessagePlugin ? jboss-esb looks like this <jms-provider name="WSMQ" connection-factory="MQQueueConnectionFactory"> <jms-bus busid="queuestartGwChannel"> <jms-message-filter dest-type="QUEUE" dest-name="wsmq/SerivceOrderQueue" acknowledge-mode ="AUTO_ACKNOWLEDGE" /> </jms-bus> <jms-bus busid="queuestartEsbChannel"> <jms-message-filter dest-type="QUEUE" dest-name="wsmq/SerivceOrderQueue" /> </jms-bus> </jms-provider> jboss-service.xml looks like this <mbean code="jmx.service.wsmq.WSMQConnectionFactory" name="jmx.service.wsmq:service=MQQueueConnectionFactory"> <attribute name="JndiName">MQQueueConnectionFactory</attribute> <attribute name="JMSStyle">Queue</attribute> <attribute name="IsXA">false</attribute> <attribute name="QueueManagerName">SQAT0083</attribute> <attribute name="HostName">111.111.111.111</attribute> <attribute name="Port">1415</attribute> <attribute name="Channel">MYCO.SVRCONN</attribute> <attribute name="TransportType">CLIENT</attribute> <depends>jboss:service=Naming</depends> </mbean> <mbean code="jmx.service.wsmq.WSMQDestination" name="jmx.service.wsmq:service=WSMQRequestQueue"> <attribute name="JndiName">wsmq/SerivceOrderQueue</attribute> <attribute name="JMSStyle">Queue</attribute> <attribute name="QueueManagerName">SQAT0083</attribute> <attribute name="DestinationName">MYCO.SERVICEORDER.QA01.QL01</attribute> <attribute name="TargetClient">MQ</attribute> <depends>jboss:service=Naming</depends> </mbean> I am using jboss-eap-4.3. Really appreciate any help.

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• service broker message process order

  - by Blootac

  Everywhere I read says that messages handled by the service broker are processed in the order that they arrive, and yet if you create a table, message type, contract, service etc , and on activation have a stored proc that waits for 2 seconds and inserts the msg into a table, set the max queue readers to 5 or 10, and send 20 odd messages I can see in the table that they are inserted out of order even though when I insert them into the queue and look at the contents of the queue I can see that the messages are all in the right order. Is it due to the delay waitfor waiting for the nearest second and each thread having different subsecond times and then fighting for a lock or something? The reason i've got a delay in there is to simulate delays with joins etc Thanks demo code: --create the table and service broker CREATE TABLE test ( id int identity(1,1), contents varchar(100) ) CREATE MESSAGE TYPE test CREATE CONTRACT mycontract ( test sent by initiator ) GO CREATE PROCEDURE dostuff AS BEGIN DECLARE @msg varchar(100); RECEIVE TOP (1) @msg = message_body FROM myQueue IF @msg IS NOT NULL BEGIN WAITFOR DELAY '00:00:02' INSERT INTO test(contents)values(@msg) END END GO ALTER QUEUE myQueue WITH STATUS = ON, ACTIVATION ( STATUS = ON, PROCEDURE_NAME = dostuff, MAX_QUEUE_READERS = 10, EXECUTE AS SELF ) create service senderService on queue myQueue ( mycontract ) create service receiverService on queue myQueue ( mycontract ) GO --********************************************************** --now insert lots of messages to the queue DECLARE @dialog_handle uniqueidentifier BEGIN DIALOG @dialog_handle FROM SERVICE senderService TO SERVICE 'receiverService' ON CONTRACT mycontract; SEND ON CONVERSATION @dialog_handle MESSAGE TYPE test ('<test>1</test>'); BEGIN DIALOG @dialog_handle FROM SERVICE senderService TO SERVICE 'receiverService' ON CONTRACT mycontract; SEND ON CONVERSATION @dialog_handle MESSAGE TYPE test ('<test>2</test>') BEGIN DIALOG @dialog_handle FROM SERVICE senderService TO SERVICE 'receiverService' ON CONTRACT mycontract; SEND ON CONVERSATION @dialog_handle MESSAGE TYPE test ('<test>3</test>') BEGIN DIALOG @dialog_handle FROM SERVICE senderService TO SERVICE 'receiverService' ON CONTRACT mycontract; SEND ON CONVERSATION @dialog_handle MESSAGE TYPE test ('<test>4</test>') BEGIN DIALOG @dialog_handle FROM SERVICE senderService TO SERVICE 'receiverService' ON CONTRACT mycontract; SEND ON CONVERSATION @dialog_handle MESSAGE TYPE test ('<test>5</test>') BEGIN DIALOG @dialog_handle FROM SERVICE senderService TO SERVICE 'receiverService' ON CONTRACT mycontract; SEND ON CONVERSATION @dialog_handle MESSAGE TYPE test ('<test>6</test>') BEGIN DIALOG @dialog_handle FROM SERVICE senderService TO SERVICE 'receiverService' ON CONTRACT mycontract; SEND ON CONVERSATION @dialog_handle MESSAGE TYPE test ('<test>7</test>')

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• NSOperation inside NSOperationQueue not being executed

  - by Martin Garcia

  I really need help here. I'm desperate at this point. I have NSOperation that when added to the NSOperationQueue is not being triggered. I added some logging to see the NSOperation status and this is the result: Queue operations count = 1 Queue isSuspended = 0 Operation isCancelled? = 0 Operation isConcurrent? = 0 Operation isFinished? = 0 Operation isExecuted? = 0 Operation isReady? = 1 Operation dependencies? = 0 The code is very simple. Nothing special. LoadingConflictEvents_iPad *loadingEvents = [[LoadingConflictEvents_iPad alloc] initWithNibName:@"LoadingConflictEvents_iPad" bundle:[NSBundle mainBundle]]; loadingEvents.modalPresentationStyle = UIModalPresentationFormSheet; loadingEvents.conflictOpDelegate = self; [self presentModalViewController:loadingEvents animated:NO]; [loadingEvents release]; ConflictEventOperation *operation = [[ConflictEventOperation alloc] initWithParameters:wiLr.formNumber pWI_ID:wiLr.wi_id]; [queue addOperation:operation]; NSLog(@"Queue operations count = %d",[queue operationCount]); NSLog(@"Queue isSuspended = %d",[queue isSuspended]); NSLog(@"Operation isCancelled? = %d",[operation isCancelled]); NSLog(@"Operation isConcurrent? = %d",[operation isConcurrent]); NSLog(@"Operation isFinished? = %d",[operation isFinished]); NSLog(@"Operation isExecuted? = %d",[operation isExecuting]); NSLog(@"Operation isReady? = %d",[operation isReady]); NSLog(@"Operation dependencies? = %d",[[operation dependencies] count]); [operation release]; Now my operation do many things on the main method, but the problem is never being called. The main is never executed. The most weird thing (believe me, I'm not crazy .. yet). If I put a break point in any NSLog line or in the creation of the operation the main method will be called and everything will work perfectly. This have been working fine for a long time. I have been making some changes recently and apparently something screw things up. One of those changes was to upgrade the device to iOS 5.1 SDK (iPad). To add something, I have the iPhone (iOS 5.1) version of this application that use the same NSOperation object. The difference is in the UI only, and everything works fine. Any help will be really appreciated. Regards,

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• Is this BlockingQueue susceptible to deadlock?

  - by unforgiven3

  I've been using this code as a queue that blocks on Dequeue() until an element is enqueued. I've used this code for a few years now in several projects, all with no issues... until now. I'm seeing a deadlock in some code I'm writing now, and in investigating the problem, my 'eye of suspicion' has settled on this BlockingQueue<T>. I can't prove it, so I figured I'd ask some people smarter than me to review it for potential issues. Can you guys see anything that might cause a deadlock in this code? public class BlockingQueue<T> { private readonly Queue<T> _queue; private readonly ManualResetEvent _event; /// <summary> /// Constructor /// </summary> public BlockingQueue() { _queue = new Queue<T>(); _event = new ManualResetEvent(false); } /// <summary> /// Read-only property to get the size of the queue /// </summary> public int Size { get { int count; lock (_queue) { count = _queue.Count; } return count; } } /// <summary> /// Enqueues element on the queue /// </summary> /// <param name="element">Element to enqueue</param> public void Enqueue(T element) { lock (_queue) { _queue.Enqueue(element); _event.Set(); } } /// <summary> /// Dequeues an element from the queue /// </summary> /// <returns>Dequeued element</returns> public T Dequeue() { T element; while (true) { if (Size == 0) { _event.Reset(); _event.WaitOne(); } lock (_queue) { if (_queue.Count == 0) continue; element = _queue.Dequeue(); break; } } return element; } /// <summary> /// Clears the queue /// </summary> public void Clear() { lock (_queue) { _queue.Clear(); } } }

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• Running out of memory.. How?

  - by maxdj

  I'm attempting to write a solver for a particular puzzle. It tries to find a solution by trying every possible move one at a time until it finds a solution. The first version tried to solve it depth-first by continually trying moves until it failed, then backtracking, but this turned out to be too slow. I have rewritten it to be breadth-first using a queue structure, but I'm having problems with memory management. Here are the relevant parts: int main(int argc, char *argv[]) { ... int solved = 0; do { solved = solver(queue); } while (!solved && !pblListIsEmpty(queue)); ... } int solver(PblList *queue) { state_t *state = (state_t *) pblListPoll(queue); if (is_solution(state->pucks)) { print_solution(state); return 1; } state_t *state_cp; puck new_location; for (int p = 0; p < puck_count; p++) { for (dir i = NORTH; i <= WEST; i++) { if (!rules(state->pucks, p, i)) continue; new_location = in_dir(state->pucks, p, i); if (new_location.x != -1) { state_cp = (state_t *) malloc(sizeof(state_t)); state_cp->move.from = state->pucks[p]; state_cp->move.direction = i; state_cp->prev = state; state_cp->pucks = (puck *) malloc (puck_count * sizeof(puck)); memcpy(state_cp->pucks, state->pucks, puck_count * sizeof(puck)); /*CRASH*/ state_cp->pucks[p] = new_location; pblListPush(queue, state_cp); } } } return 0; } When I run it I get the error: ice(90175) malloc: *** mmap(size=2097152) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug Bus error The error happens around iteration 93,000. From what I can tell, the error message is from malloc failing, and the bus error is from the memcpy after it. I have a hard time believing that I'm running out of memory, since each game state is only ~400 bytes. Yet that does seem to be what's happening, seeing as the activity monitor reports that it is using 3.99GB before it crashes. I'm using http://www.mission-base.com/peter/source/ for the queue structure (it's a linked list). Clearly I'm doing something dumb. Any suggestions?

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• C#/.NET Fundamentals: Choosing the Right Collection Class

  - by James Michael Hare

  The .NET Base Class Library (BCL) has a wide array of collection classes at your disposal which make it easy to manage collections of objects. While it's great to have so many classes available, it can be daunting to choose the right collection to use for any given situation. As hard as it may be, choosing the right collection can be absolutely key to the performance and maintainability of your application! This post will look at breaking down any confusion between each collection and the situations in which they excel. We will be spending most of our time looking at the System.Collections.Generic namespace, which is the recommended set of collections. The Generic Collections: System.Collections.Generic namespace The generic collections were introduced in .NET 2.0 in the System.Collections.Generic namespace. This is the main body of collections you should tend to focus on first, as they will tend to suit 99% of your needs right up front. It is important to note that the generic collections are unsynchronized. This decision was made for performance reasons because depending on how you are using the collections its completely possible that synchronization may not be required or may be needed on a higher level than simple method-level synchronization. Furthermore, concurrent read access (all writes done at beginning and never again) is always safe, but for concurrent mixed access you should either synchronize the collection or use one of the concurrent collections. So let's look at each of the collections in turn and its various pros and cons, at the end we'll summarize with a table to help make it easier to compare and contrast the different collections. The Associative Collection Classes Associative collections store a value in the collection by providing a key that is used to add/remove/lookup the item. Hence, the container associates the value with the key. These collections are most useful when you need to lookup/manipulate a collection using a key value. For example, if you wanted to look up an order in a collection of orders by an order id, you might have an associative collection where they key is the order id and the value is the order. The Dictionary<TKey,TVale> is probably the most used associative container class. The Dictionary<TKey,TValue> is the fastest class for associative lookups/inserts/deletes because it uses a hash table under the covers. Because the keys are hashed, the key type should correctly implement GetHashCode() and Equals() appropriately or you should provide an external IEqualityComparer to the dictionary on construction. The insert/delete/lookup time of items in the dictionary is amortized constant time - O(1) - which means no matter how big the dictionary gets, the time it takes to find something remains relatively constant. This is highly desirable for high-speed lookups. The only downside is that the dictionary, by nature of using a hash table, is unordered, so you cannot easily traverse the items in a Dictionary in order. The SortedDictionary<TKey,TValue> is similar to the Dictionary<TKey,TValue> in usage but very different in implementation. The SortedDictionary<TKey,TValye> uses a binary tree under the covers to maintain the items in order by the key. As a consequence of sorting, the type used for the key must correctly implement IComparable<TKey> so that the keys can be correctly sorted. The sorted dictionary trades a little bit of lookup time for the ability to maintain the items in order, thus insert/delete/lookup times in a sorted dictionary are logarithmic - O(log n). Generally speaking, with logarithmic time, you can double the size of the collection and it only has to perform one extra comparison to find the item. Use the SortedDictionary<TKey,TValue> when you want fast lookups but also want to be able to maintain the collection in order by the key. The SortedList<TKey,TValue> is the other ordered associative container class in the generic containers. Once again SortedList<TKey,TValue>, like SortedDictionary<TKey,TValue>, uses a key to sort key-value pairs. Unlike SortedDictionary, however, items in a SortedList are stored as an ordered array of items. This means that insertions and deletions are linear - O(n) - because deleting or adding an item may involve shifting all items up or down in the list. Lookup time, however is O(log n) because the SortedList can use a binary search to find any item in the list by its key. So why would you ever want to do this? Well, the answer is that if you are going to load the SortedList up-front, the insertions will be slower, but because array indexing is faster than following object links, lookups are marginally faster than a SortedDictionary. Once again I'd use this in situations where you want fast lookups and want to maintain the collection in order by the key, and where insertions and deletions are rare. The Non-Associative Containers The other container classes are non-associative. They don't use keys to manipulate the collection but rely on the object itself being stored or some other means (such as index) to manipulate the collection. The List<T> is a basic contiguous storage container. Some people may call this a vector or dynamic array. Essentially it is an array of items that grow once its current capacity is exceeded. Because the items are stored contiguously as an array, you can access items in the List<T> by index very quickly. However inserting and removing in the beginning or middle of the List<T> are very costly because you must shift all the items up or down as you delete or insert respectively. However, adding and removing at the end of a List<T> is an amortized constant operation - O(1). Typically List<T> is the standard go-to collection when you don't have any other constraints, and typically we favor a List<T> even over arrays unless we are sure the size will remain absolutely fixed. The LinkedList<T> is a basic implementation of a doubly-linked list. This means that you can add or remove items in the middle of a linked list very quickly (because there's no items to move up or down in contiguous memory), but you also lose the ability to index items by position quickly. Most of the time we tend to favor List<T> over LinkedList<T> unless you are doing a lot of adding and removing from the collection, in which case a LinkedList<T> may make more sense. The HashSet<T> is an unordered collection of unique items. This means that the collection cannot have duplicates and no order is maintained. Logically, this is very similar to having a Dictionary<TKey,TValue> where the TKey and TValue both refer to the same object. This collection is very useful for maintaining a collection of items you wish to check membership against. For example, if you receive an order for a given vendor code, you may want to check to make sure the vendor code belongs to the set of vendor codes you handle. In these cases a HashSet<T> is useful for super-quick lookups where order is not important. Once again, like in Dictionary, the type T should have a valid implementation of GetHashCode() and Equals(), or you should provide an appropriate IEqualityComparer<T> to the HashSet<T> on construction. The SortedSet<T> is to HashSet<T> what the SortedDictionary<TKey,TValue> is to Dictionary<TKey,TValue>. That is, the SortedSet<T> is a binary tree where the key and value are the same object. This once again means that adding/removing/lookups are logarithmic - O(log n) - but you gain the ability to iterate over the items in order. For this collection to be effective, type T must implement IComparable<T> or you need to supply an external IComparer<T>. Finally, the Stack<T> and Queue<T> are two very specific collections that allow you to handle a sequential collection of objects in very specific ways. The Stack<T> is a last-in-first-out (LIFO) container where items are added and removed from the top of the stack. Typically this is useful in situations where you want to stack actions and then be able to undo those actions in reverse order as needed. The Queue<T> on the other hand is a first-in-first-out container which adds items at the end of the queue and removes items from the front. This is useful for situations where you need to process items in the order in which they came, such as a print spooler or waiting lines. So that's the basic collections. Let's summarize what we've learned in a quick reference table.  Collection Ordered? Contiguous Storage? Direct Access? Lookup Efficiency Manipulate Efficiency Notes Dictionary No Yes Via Key Key: O(1) O(1) Best for high performance lookups. SortedDictionary Yes No Via Key Key: O(log n) O(log n) Compromise of Dictionary speed and ordering, uses binary search tree. SortedList Yes Yes Via Key Key: O(log n) O(n) Very similar to SortedDictionary, except tree is implemented in an array, so has faster lookup on preloaded data, but slower loads. List No Yes Via Index Index: O(1) Value: O(n) O(n) Best for smaller lists where direct access required and no ordering. LinkedList No No No Value: O(n) O(1) Best for lists where inserting/deleting in middle is common and no direct access required. HashSet No Yes Via Key Key: O(1) O(1) Unique unordered collection, like a Dictionary except key and value are same object. SortedSet Yes No Via Key Key: O(log n) O(log n) Unique ordered collection, like SortedDictionary except key and value are same object. Stack No Yes Only Top Top: O(1) O(1)* Essentially same as List<T> except only process as LIFO Queue No Yes Only Front Front: O(1) O(1) Essentially same as List<T> except only process as FIFO   The Original Collections: System.Collections namespace The original collection classes are largely considered deprecated by developers and by Microsoft itself. In fact they indicate that for the most part you should always favor the generic or concurrent collections, and only use the original collections when you are dealing with legacy .NET code. Because these collections are out of vogue, let's just briefly mention the original collection and their generic equivalents: ArrayList A dynamic, contiguous collection of objects. Favor the generic collection List<T> instead. Hashtable Associative, unordered collection of key-value pairs of objects. Favor the generic collection Dictionary<TKey,TValue> instead. Queue First-in-first-out (FIFO) collection of objects. Favor the generic collection Queue<T> instead. SortedList Associative, ordered collection of key-value pairs of objects. Favor the generic collection SortedList<T> instead. Stack Last-in-first-out (LIFO) collection of objects. Favor the generic collection Stack<T> instead. In general, the older collections are non-type-safe and in some cases less performant than their generic counterparts. Once again, the only reason you should fall back on these older collections is for backward compatibility with legacy code and libraries only. The Concurrent Collections: System.Collections.Concurrent namespace The concurrent collections are new as of .NET 4.0 and are included in the System.Collections.Concurrent namespace. These collections are optimized for use in situations where multi-threaded read and write access of a collection is desired. The concurrent queue, stack, and dictionary work much as you'd expect. The bag and blocking collection are more unique. Below is the summary of each with a link to a blog post I did on each of them. ConcurrentQueue Thread-safe version of a queue (FIFO). For more information see: C#/.NET Little Wonders: The ConcurrentStack and ConcurrentQueue ConcurrentStack Thread-safe version of a stack (LIFO). For more information see: C#/.NET Little Wonders: The ConcurrentStack and ConcurrentQueue ConcurrentBag Thread-safe unordered collection of objects. Optimized for situations where a thread may be bother reader and writer. For more information see: C#/.NET Little Wonders: The ConcurrentBag and BlockingCollection ConcurrentDictionary Thread-safe version of a dictionary. Optimized for multiple readers (allows multiple readers under same lock). For more information see C#/.NET Little Wonders: The ConcurrentDictionary BlockingCollection Wrapper collection that implement producers & consumers paradigm. Readers can block until items are available to read. Writers can block until space is available to write (if bounded). For more information see C#/.NET Little Wonders: The ConcurrentBag and BlockingCollection Summary The .NET BCL has lots of collections built in to help you store and manipulate collections of data. Understanding how these collections work and knowing in which situations each container is best is one of the key skills necessary to build more performant code. Choosing the wrong collection for the job can make your code much slower or even harder to maintain if you choose one that doesn’t perform as well or otherwise doesn’t exactly fit the situation. Remember to avoid the original collections and stick with the generic collections.  If you need concurrent access, you can use the generic collections if the data is read-only, or consider the concurrent collections for mixed-access if you are running on .NET 4.0 or higher.   Tweet Technorati Tags: C#,.NET,Collecitons,Generic,Concurrent,Dictionary,List,Stack,Queue,SortedList,SortedDictionary,HashSet,SortedSet

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• Windows Azure Service Bus Scatter-Gather Implementation

  - by Alan Smith

  One of the more challenging enterprise integration patterns that developers may wish to implement is the Scatter-Gather pattern. In this article I will show the basic implementation of a scatter-gather pattern using the topic-subscription model of the windows azure service bus. I’ll be using the implementation in demos, and also as a lab in my training courses, and the pattern will also be included in the next release of my free e-book the “Windows Azure Service Bus Developer Guide”. The Scatter-Gather pattern answers the following scenario. How do you maintain the overall message flow when a message needs to be sent to multiple recipients, each of which may send a reply? Use a Scatter-Gather that broadcasts a message to multiple recipients and re-aggregates the responses back into a single message. The Enterprise Integration Patterns website provides a description of the Scatter-Gather pattern here.   The scatter-gather pattern uses a composite of the publish-subscribe channel pattern and the aggregator pattern. The publish-subscribe channel is used to broadcast messages to a number of receivers, and the aggregator is used to gather the response messages and aggregate them together to form a single message. Scatter-Gather Scenario The scenario for this scatter-gather implementation is an application that allows users to answer questions in a poll based voting scenario. A poll manager application will be used to broadcast questions to users, the users will use a voting application that will receive and display the questions and send the votes back to the poll manager. The poll manager application will receive the users’ votes and aggregate them together to display the results. The scenario should be able to scale to support a large number of users.   Scatter-Gather Implementation The diagram below shows the overall architecture for the scatter-gather implementation.       Messaging Entities Looking at the scatter-gather pattern diagram it can be seen that the topic-subscription architecture is well suited for broadcasting a message to a number of subscribers. The poll manager application can send the question messages to a topic, and each voting application can receive the question message on its own subscription. The static limit of 2,000 subscriptions per topic in the current release means that 2,000 voting applications can receive question messages and take part in voting. The vote messages can then be sent to the poll manager application using a queue. The voting applications will send their vote messages to the queue, and the poll manager will receive and process the vote messages. The questions topic and answer queue are created using the Windows Azure Developer Portal. Each instance of the voting application will create its own subscription in the questions topic when it starts, allowing the question messages to be broadcast to all subscribing voting applications. Data Contracts Two simple data contracts will be used to serialize the questions and votes as brokered messages. The code for these is shown below.   [DataContract] public class Question {     [DataMember]     public string QuestionText { get; set; } }     To keep the implementation of the voting functionality simple and focus on the pattern implementation, the users can only vote yes or no to the questions.   [DataContract] public class Vote {     [DataMember]     public string QuestionText { get; set; }       [DataMember]     public bool IsYes { get; set; } }     Poll Manager Application The poll manager application has been implemented as a simple WPF application; the user interface is shown below. A question can be entered in the text box, and sent to the topic by clicking the Add button. The topic and subscriptions used for broadcasting the messages are shown in a TreeView control. The questions that have been broadcast and the resulting votes are shown in a ListView control. When the application is started any existing subscriptions are cleared form the topic, clients are then created for the questions topic and votes queue, along with background workers for receiving and processing the vote messages, and updating the display of subscriptions.   public MainWindow() {     InitializeComponent();       // Create a new results list and data bind it.     Results = new ObservableCollection<Result>();     lsvResults.ItemsSource = Results;       // Create a token provider with the relevant credentials.     TokenProvider credentials =         TokenProvider.CreateSharedSecretTokenProvider         (AccountDetails.Name, AccountDetails.Key);       // Create a URI for the serivce bus.     Uri serviceBusUri = ServiceBusEnvironment.CreateServiceUri         ("sb", AccountDetails.Namespace, string.Empty);       // Clear out any old subscriptions.     NamespaceManager = new NamespaceManager(serviceBusUri, credentials);     IEnumerable<SubscriptionDescription> subs =         NamespaceManager.GetSubscriptions(AccountDetails.ScatterGatherTopic);     foreach (SubscriptionDescription sub in subs)     {         NamespaceManager.DeleteSubscription(sub.TopicPath, sub.Name);     }       // Create the MessagingFactory     MessagingFactory factory = MessagingFactory.Create(serviceBusUri, credentials);       // Create the topic and queue clients.     ScatterGatherTopicClient =         factory.CreateTopicClient(AccountDetails.ScatterGatherTopic);     ScatterGatherQueueClient =         factory.CreateQueueClient(AccountDetails.ScatterGatherQueue);       // Start the background worker threads.     VotesBackgroundWorker = new BackgroundWorker();     VotesBackgroundWorker.DoWork += new DoWorkEventHandler(ReceiveMessages);     VotesBackgroundWorker.RunWorkerAsync();       SubscriptionsBackgroundWorker = new BackgroundWorker();     SubscriptionsBackgroundWorker.DoWork += new DoWorkEventHandler(UpdateSubscriptions);     SubscriptionsBackgroundWorker.RunWorkerAsync(); }     When the poll manager user nters a question in the text box and clicks the Add button a question message is created and sent to the topic. This message will be broadcast to all the subscribing voting applications. An instance of the Result class is also created to keep track of the votes cast, this is then added to an observable collection named Results, which is data-bound to the ListView control.   private void btnAddQuestion_Click(object sender, RoutedEventArgs e) {     // Create a new result for recording votes.     Result result = new Result()     {         Question = txtQuestion.Text     };     Results.Add(result);       // Send the question to the topic     Question question = new Question()     {         QuestionText = result.Question     };     BrokeredMessage msg = new BrokeredMessage(question);     ScatterGatherTopicClient.Send(msg);       txtQuestion.Text = ""; }     The Results class is implemented as follows.   public class Result : INotifyPropertyChanged {     public string Question { get; set; }       private int m_YesVotes;     private int m_NoVotes;       public event PropertyChangedEventHandler PropertyChanged;       public int YesVotes     {         get { return m_YesVotes; }         set         {             m_YesVotes = value;             NotifyPropertyChanged("YesVotes");         }     }       public int NoVotes     {         get { return m_NoVotes; }         set         {             m_NoVotes = value;             NotifyPropertyChanged("NoVotes");         }     }       private void NotifyPropertyChanged(string prop)     {         if(PropertyChanged != null)         {             PropertyChanged(this, new PropertyChangedEventArgs(prop));         }     } }     The INotifyPropertyChanged interface is implemented so that changes to the number of yes and no votes will be updated in the ListView control. Receiving the vote messages from the voting applications is done asynchronously, using a background worker thread.   // This runs on a background worker. private void ReceiveMessages(object sender, DoWorkEventArgs e) {     while (true)     {         // Receive a vote message from the queue         BrokeredMessage msg = ScatterGatherQueueClient.Receive();         if (msg != null)         {             // Deserialize the message.             Vote vote = msg.GetBody<Vote>();               // Update the results.             foreach (Result result in Results)             {                 if (result.Question.Equals(vote.QuestionText))                 {                     if (vote.IsYes)                     {                         result.YesVotes++;                     }                     else                     {                         result.NoVotes++;                     }                     break;                 }             }               // Mark the message as complete.             msg.Complete();         }       } }     When a vote message is received, the result that matches the vote question is updated with the vote from the user. The message is then marked as complete. A second background thread is used to update the display of subscriptions in the TreeView, with a dispatcher used to update the user interface. // This runs on a background worker. private void UpdateSubscriptions(object sender, DoWorkEventArgs e) {     while (true)     {         // Get a list of subscriptions.         IEnumerable<SubscriptionDescription> subscriptions =             NamespaceManager.GetSubscriptions(AccountDetails.ScatterGatherTopic);           // Update the user interface.         SimpleDelegate setQuestion = delegate()         {             trvSubscriptions.Items.Clear();             TreeViewItem topicItem = new TreeViewItem()             {                 Header = AccountDetails.ScatterGatherTopic             };               foreach (SubscriptionDescription subscription in subscriptions)             {                 TreeViewItem subscriptionItem = new TreeViewItem()                 {                     Header = subscription.Name                 };                 topicItem.Items.Add(subscriptionItem);             }             trvSubscriptions.Items.Add(topicItem);               topicItem.ExpandSubtree();         };         this.Dispatcher.BeginInvoke(DispatcherPriority.Send, setQuestion);           Thread.Sleep(3000);     } }       Voting Application The voting application is implemented as another WPF application. This one is more basic, and allows the user to vote “Yes” or “No” for the questions sent by the poll manager application. The user interface for that application is shown below. When an instance of the voting application is created it will create a subscription in the questions topic using a GUID as the subscription name. The application can then receive copies of every question message that is sent to the topic. Clients for the new subscription and the votes queue are created, along with a background worker to receive the question messages. The voting application is set to receiving mode, meaning it is ready to receive a question message from the subscription.   public MainWindow() {     InitializeComponent();       // Set the mode to receiving.     IsReceiving = true;       // Create a token provider with the relevant credentials.     TokenProvider credentials =         TokenProvider.CreateSharedSecretTokenProvider         (AccountDetails.Name, AccountDetails.Key);       // Create a URI for the serivce bus.     Uri serviceBusUri = ServiceBusEnvironment.CreateServiceUri         ("sb", AccountDetails.Namespace, string.Empty);       // Create the MessagingFactory     MessagingFactory factory = MessagingFactory.Create(serviceBusUri, credentials);       // Create a subcription for this instance     NamespaceManager mgr = new NamespaceManager(serviceBusUri, credentials);     string subscriptionName = Guid.NewGuid().ToString();     mgr.CreateSubscription(AccountDetails.ScatterGatherTopic, subscriptionName);       // Create the subscription and queue clients.     ScatterGatherSubscriptionClient = factory.CreateSubscriptionClient         (AccountDetails.ScatterGatherTopic, subscriptionName);     ScatterGatherQueueClient =         factory.CreateQueueClient(AccountDetails.ScatterGatherQueue);       // Start the background worker thread.     BackgroundWorker = new BackgroundWorker();     BackgroundWorker.DoWork += new DoWorkEventHandler(ReceiveMessages);     BackgroundWorker.RunWorkerAsync(); }     I took the inspiration for creating the subscriptions in the voting application from the chat application that uses topics and subscriptions blogged by Ovais Akhter here. The method that receives the question messages runs on a background thread. If the application is in receive mode, a question message will be received from the subscription, the question will be displayed in the user interface, the voting buttons enabled, and IsReceiving set to false to prevent more questing from being received before the current one is answered.   // This runs on a background worker. private void ReceiveMessages(object sender, DoWorkEventArgs e) {     while (true)     {         if (IsReceiving)         {             // Receive a question message from the topic.             BrokeredMessage msg = ScatterGatherSubscriptionClient.Receive();             if (msg != null)             {                 // Deserialize the message.                 Question question = msg.GetBody<Question>();                   // Update the user interface.                 SimpleDelegate setQuestion = delegate()                 {                     lblQuestion.Content = question.QuestionText;                     btnYes.IsEnabled = true;                     btnNo.IsEnabled = true;                 };                 this.Dispatcher.BeginInvoke(DispatcherPriority.Send, setQuestion);                 IsReceiving = false;                   // Mark the message as complete.                 msg.Complete();             }         }         else         {             Thread.Sleep(1000);         }     } }     When the user clicks on the Yes or No button, the btnVote_Click method is called. This will create a new Vote data contract with the appropriate question and answer and send the message to the poll manager application using the votes queue. The user voting buttons are then disabled, the question text cleared, and the IsReceiving flag set to true to allow a new message to be received.   private void btnVote_Click(object sender, RoutedEventArgs e) {     // Create a new vote.     Vote vote = new Vote()     {         QuestionText = (string)lblQuestion.Content,         IsYes = ((sender as Button).Content as string).Equals("Yes")     };       // Send the vote message.     BrokeredMessage msg = new BrokeredMessage(vote);     ScatterGatherQueueClient.Send(msg);       // Update the user interface.     lblQuestion.Content = "";     btnYes.IsEnabled = false;     btnNo.IsEnabled = false;     IsReceiving = true; }     Testing the Application In order to test the application, an instance of the poll manager application is started; the user interface is shown below. As no instances of the voting application have been created there are no subscriptions present in the topic. When an instance of the voting application is created the subscription will be displayed in the poll manager. Now that a voting application is subscribing, a questing can be sent from the poll manager application. When the message is sent to the topic, the voting application will receive the message and display the question. The voter can then answer the question by clicking on the appropriate button. The results of the vote are updated in the poll manager application. When two more instances of the voting application are created, the poll manager will display the new subscriptions. More questions can then be broadcast to the voting applications. As the question messages are queued up in the subscription for each voting application, the users can answer the questions in their own time. The vote messages will be received by the poll manager application and aggregated to display the results. The screenshots of the applications part way through voting are shown below. The messages for each voting application are queued up in sequence on the voting application subscriptions, allowing the questions to be answered at different speeds by the voters.

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• "Error in the Site Data Web Service." when performing crawl

  - by Janis Veinbergs

  Installed SharePoint Services v3 (SP2, october 2009 cumulative updates, Language Pack), attached to a content database I had previously (all works). Installed Search server 2008 Express (with language pack) on top of WSS and crawl does not work. However it works for newly created web application + database. Was playing around with accounts, permissions to try get it working. Currently I have WSS_Crawler account with such permissions: Office Search Server runs with WSS_Crawler account Config database has read permissions for WSS_Crawler Content database has read permissions for WSS_Crawler WSS_Crawler is owner of search database. Added WSS_Crawler to SQL server browser user group and administrator Yes, i'v given more permissions than needed, but it doesn't even work with that and i don't know if its permission problem or what. Crawl log says there is Error in the Site Data Web Service., nothing more. There were known issues with a similar error: Error in the Site Data Web Service. (Value does not fall within the expected range.), but this is not the case as thats an old issue and i hope it has been included in SP2... Logs are from olders to newest (descending order). They don't appear to be very helpful. Crawl log http://serveris Crawled Local Office SharePoint Server sites 3/15/2010 9:39 AM sts3://serveris Crawled Local Office SharePoint Server sites 3/15/2010 9:39 AM sts3://serveris/contentdbid={55180cfa-9d2d-46e4... Crawled Local Office SharePoint Server sites 3/15/2010 9:39 AM http://serveris/test Error in the Site Data Web Service. Local Office SharePoint Server sites 3/15/2010 9:39 AM http://serveris Error in the Site Data Web Service. Local Office SharePoint Server sites 3/15/2010 9:39 AM EventLog No errors in EventLog, just some Information events that Office Server Search provides The search service started. Successfully stored the application configuration registry snapshot in the database. Context: Application 'SharedServices Component: da1288b2-4109-4219-8c0c-3a22802eb842 Catalog: Portal_Content. A master merge was started due to an external request. Component: da1288b2-4109-4219-8c0c-3a22802eb842 A master merge has completed for catalog Portal_Content. Component: da1288b2-4109-4219-8c0c-3a22802eb842 Catalog: AnchorProject. A master merge was started due to an external request. Component: da1288b2-4109-4219-8c0c-3a22802eb842 A master merge has completed for catalog AnchorProject. ULS Log Just some information, but no exceptions, unexpected errors 03/15/2010 09:03:28.28 mssearch.exe (0x1B2C) 0x0E8C Search Server Common GatherStatus 0 Monitorable Insert crawl 771 to inprogress queue hr 0x00000000 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6591 03/15/2010 09:03:28.28 mssearch.exe (0x1B2C) 0x0E8C Search Server Common GatherStatus 0 Monitorable Request Start Crawl 1, project Portal_Content, crawl 771 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2875 03/15/2010 09:03:28.28 mssearch.exe (0x1B2C) 0x0E8C Search Server Common GatherStatus 0 Monitorable Advise status change 1, project Portal_Content, crawl 771 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:28.28 w3wp.exe (0x1D98) 0x0958 Search Server Common MS Search Administration 8wn6 Information A full crawl was started on 'Local Office SharePoint Server sites' by BALTICOVO\janis.veinbergs. 03/15/2010 09:03:28.43 mssdmn.exe (0x1750) 0x10F8 ULS Logging Unified Logging Service 8wsv High ULS Init Completed (mssdmn.exe, Microsoft.Office.Server.Native.dll) 03/15/2010 09:03:30.48 mssdmn.exe (0x1750) 0x09C0 Search Server Common MS Search Indexing 8z0v Medium Create CCache 03/15/2010 09:03:30.56 mssdmn.exe (0x1750) 0x09C0 Search Server Common MS Search Indexing 8z0z Medium Create CUserCatalogCache 03/15/2010 09:03:32.06 w3wp.exe (0x1D98) 0x0958 Search Server Common MS Search Administration 90ge Medium SQL: dbo.proc_MSS_PropagationGetQueryServers 03/15/2010 09:03:32.09 w3wp.exe (0x1D98) 0x0958 Search Server Common MS Search Administration 7phq High GetProtocolConfigHelper failed in GetNotesInterface(). 03/15/2010 09:03:34.26 mssearch.exe (0x1B2C) 0x16A4 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project Portal_Content, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:35.92 mssearch.exe (0x1B2C) 0x16A4 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project Portal_Content, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:37.32 mssearch.exe (0x1B2C) 0x16A4 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project Portal_Content, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:37.23 mssdmn.exe (0x1750) 0x1850 Search Server Common MS Search Indexing 8z14 Medium Test TRACE (NULL):(null), (NULL)(null), (CrLf): , end 03/15/2010 09:03:39.04 mssearch.exe (0x1B2C) 0x16A4 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project Portal_Content, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:40.98 mssdmn.exe (0x1750) 0x0B24 Search Server Common MS Search Indexing 7how Monitorable GetWebDefaultPage fail. error 2147755542, strWebUrl http://serveris 03/15/2010 09:03:41.87 mssdmn.exe (0x1750) 0x1260 Search Server Common PHSts 0 Monitorable CSTS3Accessor::GetSubWebListItemAccessURL GetAccessURL failed: Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3acc.cxx Line:505 03/15/2010 09:03:41.87 mssdmn.exe (0x1750) 0x1260 Search Server Common PHSts 0 Monitorable CSTS3Accessor::Init: GetSubWebListItemAccessURL failed. Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3acc.cxx Line:348 03/15/2010 09:03:41.87 mssdmn.exe (0x1750) 0x1260 Search Server Common PHSts 0 Monitorable CSTS3Accessor::Init fails, Url sts3://serveris/siteurl=test/siteid={390611b2-55f3-4a99-8600-778727177a28}/weburl=/webid={fb0e4bff-65d5-4ded-98d5-fd099456962b}, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3handler.cxx Line:243 03/15/2010 09:03:41.87 mssdmn.exe (0x1750) 0x1260 Search Server Common PHSts 0 Monitorable CSTS3Handler::CreateAccessorExB: Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3handler.cxx Line:261 03/15/2010 09:03:40.98 mssdmn.exe (0x1750) 0x1260 Search Server Common MS Search Indexing 7how Monitorable GetWebDefaultPage fail. error 2147755542, strWebUrl http://serveris/test 03/15/2010 09:03:41.90 mssdmn.exe (0x1750) 0x0B24 Search Server Common PHSts 0 Monitorable CSTS3Accessor::GetSubWebListItemAccessURL GetAccessURL failed: Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3acc.cxx Line:505 03/15/2010 09:03:41.90 mssdmn.exe (0x1750) 0x0B24 Search Server Common PHSts 0 Monitorable CSTS3Accessor::Init: GetSubWebListItemAccessURL failed. Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3acc.cxx Line:348 03/15/2010 09:03:41.90 mssdmn.exe (0x1750) 0x0B24 Search Server Common PHSts 0 Monitorable CSTS3Accessor::Init fails, Url sts3://serveris/siteurl=/siteid={505443fa-ef12-4f1e-a04b-d5450c939b78}/weburl=/webid={c5a4f8aa-9561-4527-9e1a-b3c23200f11c}, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3handler.cxx Line:243 03/15/2010 09:03:41.90 mssdmn.exe (0x1750) 0x0B24 Search Server Common PHSts 0 Monitorable CSTS3Handler::CreateAccessorExB: Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3handler.cxx Line:261 03/15/2010 09:03:43.26 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 24, project Portal_Content, crawl 771 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:43.26 mssearch.exe (0x1B2C) 0x1804 Search Server Common GatherStatus 0 Monitorable Remove crawl 771 from inprogress queue - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6722 03/15/2010 09:03:43.26 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project Portal_Content, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:44.65 mssearch.exe (0x1B2C) 0x1804 Search Server Common GatherStatus 0 Monitorable Insert crawl 772 to inprogress queue hr 0x00000000 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6591 03/15/2010 09:03:44.65 mssearch.exe (0x1B2C) 0x1804 Search Server Common GatherStatus 0 Monitorable Request Start Crawl 0, project AnchorProject, crawl 772 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2875 03/15/2010 09:03:44.65 mssearch.exe (0x1B2C) 0x1804 Search Server Common GatherStatus 0 Monitorable Advise status change 0, project AnchorProject, crawl 772 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:44.65 mssearch.exe (0x1B2C) 0x1804 Search Server Common GatherStatus 0 Monitorable Unlock Queue, project Portal_Content - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2922 03/15/2010 09:03:44.82 mssearch.exe (0x1B2C) 0x1DD0 Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:44.95 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project AnchorProject, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:46.51 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project AnchorProject, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:46.39 mssearch.exe (0x1B2C) 0x1E4C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.01 mssearch.exe (0x1B2C) 0x1C6C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.87 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.29 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.53 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.67 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.82 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.84 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.89 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.90 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project AnchorProject, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:51.42 mssearch.exe (0x1B2C) 0x1E4C Search Server Common GatherStatus 0 Monitorable Advise status change 4, project AnchorProject, crawl 772 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:51.00 mssearch.exe (0x1B2C) 0x1E4C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:51.42 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Remove crawl 772 from inprogress queue - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6722 03/15/2010 09:03:52.96 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Insert crawl 773 to inprogress queue hr 0x00000000 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6591 03/15/2010 09:03:52.96 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Request Start Crawl 0, project AnchorProject, crawl 773 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2875 03/15/2010 09:03:55.29 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Unlock Queue, project AnchorProject - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2922 03/15/2010 09:03:55.29 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Removed start crawl request from Queue 0, crawl 773 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2942 03/15/2010 09:03:55.29 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Request Start Crawl 0, project AnchorProject, crawl 773 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2875 03/15/2010 09:03:55.29 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Advise status change 0, project AnchorProject, crawl 773 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:55.37 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:55.37 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project AnchorProject, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:56.71 mssearch.exe (0x1B2C) 0x1E4C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:56.78 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project AnchorProject, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:58.40 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:58.89 mssearch.exe (0x1B2C) 0x155C Search Server Common GatherStatus 0 Monitorable Advise status change 4, project AnchorProject, crawl 773 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:58.89 mssearch.exe (0x1B2C) 0x1130 Search Server Common GatherStatus 0 Monitorable Remove crawl 773 from inprogress queue - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6722 03/15/2010 09:03:58.89 mssearch.exe (0x1B2C) 0x1130 Search Server Common GatherStatus 0 Monitorable Unlock Queue, project AnchorProject - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2922 What could be wrong here - any clues?

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• Change sysout logging level for Weblogic

  - by Justin Voss

  When I run a local copy of Weblogic, I like to see the output in the console so that I can observe my app's logging messages. But, Weblogic spits out a lot of log messages I don't care about, like these: [ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)' 08-29-2010 01:02:21 INFO Getting a JNDI connection [ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)' 08-29-2010 01:02:21 INFO Connection Returned. Elapsed time to acquire=0ms. [ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)' 08-29-2010 01:02:21 INFO Getting a JNDI connection [ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)' 08-29-2010 01:02:21 INFO Connection Returned. Elapsed time to acquire=0ms. Can I configure Weblogic to not output those? I assume that I can change the logging level to something higher than INFO and that should fix it?

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• Distribute IP packets accross different NIC queues with MSI (Message Signalled Interrupts)

  - by Ansis Atteka

  NetXtreme II BCM5709 Gigabit Ethernet NIC supports MSI feature (Message Signaled Interrupts) and it has 8 queues. Each queue has its own Interrupt handler in /proc/interrupts. What I am trying to accomplish is to tell NIC which packets should go to which queue. Questions: Is it possible to manually specify which IP packets should go to which queue by encapsulated protocol type (e.g. IPsec packets go in one queue, while TCP packets go in another queue)? If it is possible - how can I do it under Linux? If it is not possible - should I look at MSI-X capable NIC cards to solve this problem? More details: We have one Interface that is terminating IPSec and forwarding/terminating TCP connections. The IPSec packet decryption is inlined (this means that decryption is done under the same ksoftirqd/X context). We are trying to find out if we will be able to improve total performance if IPSec packets will be scheduled on another CPU than TCP packets. One more limitation is that IPSec code is not MP-safe, hence I can not run it under more than one ksoftirqd/X. By default it seems that packets are distributed/hashed by source IP over the 8 NIC queues. The bottleneck is IPSec that chokes out TCP traffic while it is decrypting/encrypting IPSec packets at ~100% CPU. OS is Ubuntu 10.10 (2.6.32-27-server) and NIC is Broadcom BCM5709.

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• MSMQ Resilience

  - by Paddy Carroll

  I have a requirement for a resilient MSMQ setup on VMWare ESX5. I am aware that we cannot allow the queue storage to be shared as it must be installed on physical disk mount, e.g. it cant be an CIFS or DFS Share. The following constraints apply: We don't use windows clustering We dont't rely on hot standbys Is there a way I can replicate the queue storage to another platform so that it can assume MSMQ duties on failure of the primary platforms using any method including queue forwarding?

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• Mail server not sending or receiving after removal from barracuda blacklist to white list

  - by user137765

  Mail server not sending or receiving after removal from barracuda blacklist to white list. I've checked against black lists and the ip and domain are clean. 1and1 are saying its Barracuda black list and barracuda are saying its not blacklisted and that its somethign with 1and1 server. section from log file... Sep 20 04:29:25 vegaserve postfix/smtpd[16906]: connect from mta860.chtah.net[63.236.31.146] Sep 20 04:29:25 vegaserve postfix/smtpd[16070]: connect from host81-136-144-117.in-addr.btopenworld.com[81.136.144.117] Sep 20 04:29:27 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: raidon - short names not allowed from @ [201.80.253.153]ERR: 1348111767.185119 LOGOUT, [email protected], ip=[86.143.136.249], top=0, retr=0, time=151, rcvd=18, sent=283, maildir=/var/qmail/mailnames/mbelectrics.net/mb/Maildir Sep 20 04:29:28 vegaserve pop3d: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:29:28 vegaserve postfix/smtpd[15388]: connect from mta965.emails.itv.com[8.30.201.55] Sep 20 04:29:29 vegaserve postfix/smtpd[18194]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:29 vegaserve postfix/cleanup[24879]: 95CB31E87556C: message-id=<[email protected] Sep 20 04:29:29 vegaserve postfix/qmgr[14378]: 95CB31E87556C: from=, size=975, nrcpt=1 (queue active) Sep 20 04:29:29 vegaserve postfix/smtpd[18194]: disconnect from uspmta172097.emarsys.net[195.54.172.97] Sep 20 04:29:29 vegaserve postfix/smtp[25748]: 95CB31E87556C: to=, orig_to=, relay=none, delay=0.05, delays=0.05/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:29 vegaserve postfix/bounce[25897]: warning: 95CB31E87556C: undeliverable postmaster notification discarded Sep 20 04:29:29 vegaserve postfix/qmgr[14378]: 95CB31E87556C: removed Sep 20 04:29:32 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:29:37 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: rei - short names not allowed from @ [201.80.253.153]ERR: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:29:38 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:29:38 vegaserve postfix/smtpd[19328]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:40 vegaserve postfix/smtpd[18331]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:40 vegaserve postfix/smtpd[24464]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:40 vegaserve postfix/cleanup[24825]: BD1A71E87556C: message-id=<[email protected] Sep 20 04:29:40 vegaserve postfix/qmgr[14378]: BD1A71E87556C: from=, size=673, nrcpt=1 (queue active) Sep 20 04:29:40 vegaserve postfix/smtpd[24464]: disconnect from unknown[118.97.212.190] Sep 20 04:29:40 vegaserve postfix/smtp[25748]: BD1A71E87556C: to=, orig_to=, relay=none, delay=0.04, delays=0.04/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:40 vegaserve postfix/bounce[25995]: warning: BD1A71E87556C: undeliverable postmaster notification discarded Sep 20 04:29:40 vegaserve postfix/qmgr[14378]: BD1A71E87556C: removed Sep 20 04:29:41 vegaserve postfix/cleanup[24879]: 0A42B1E87556C: message-id=<[email protected] Sep 20 04:29:41 vegaserve postfix/qmgr[14378]: 0A42B1E87556C: from=, size=961, nrcpt=1 (queue active) Sep 20 04:29:41 vegaserve postfix/smtpd[18331]: disconnect from bay0-omc4-s10.bay0.hotmail.com[65.54.190.212] Sep 20 04:29:41 vegaserve postfix/smtp[25748]: 0A42B1E87556C: to=, orig_to=, relay=none, delay=0.03, delays=0.03/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:41 vegaserve postfix/bounce[25897]: warning: 0A42B1E87556C: undeliverable postmaster notification discarded Sep 20 04:29:41 vegaserve postfix/qmgr[14378]: 0A42B1E87556C: removed Sep 20 04:29:43 vegaserve postfix/smtpd[17511]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:43 vegaserve postfix/cleanup[24825]: 8F8991E87556C: message-id=<[email protected] Sep 20 04:29:43 vegaserve postfix/qmgr[14378]: 8F8991E87556C: from=, size=946, nrcpt=1 (queue active) Sep 20 04:29:43 vegaserve postfix/smtpd[17511]: disconnect from blu0-omc4-s22.blu0.hotmail.com[65.55.111.161] Sep 20 04:29:43 vegaserve postfix/smtp[25748]: 8F8991E87556C: to=, orig_to=, relay=none, delay=0.05, delays=0.02/0/0.02/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:43 vegaserve postfix/bounce[25995]: warning: 8F8991E87556C: undeliverable postmaster notification discarded Sep 20 04:29:43 vegaserve postfix/qmgr[14378]: 8F8991E87556C: removed Sep 20 04:29:44 vegaserve postfix/cleanup[24879]: 088641E87556C: message-id=<[email protected] Sep 20 04:29:44 vegaserve postfix/qmgr[14378]: 088641E87556C: from=, size=1078, nrcpt=1 (queue active) Sep 20 04:29:44 vegaserve postfix/smtpd[19328]: disconnect from smtp10.bis7.eu.blackberry.com[178.239.85.15] Sep 20 04:29:44 vegaserve postfix/smtp[25748]: 088641E87556C: to=, orig_to=, relay=none, delay=0.05, delays=0.03/0/0.01/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:44 vegaserve postfix/bounce[25995]: warning: 088641E87556C: undeliverable postmaster notification discarded Sep 20 04:29:44 vegaserve postfix/qmgr[14378]: 088641E87556C: removed Sep 20 04:29:44 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: rin - short names not allowed from @ [201.80.253.153]ERR: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:29:44 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:29:44 vegaserve postfix/smtpd[18965]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:44 vegaserve postfix/cleanup[24825]: 946F51E87556C: message-id=<[email protected] Sep 20 04:29:44 vegaserve postfix/qmgr[14378]: 946F51E87556C: from=, size=1173, nrcpt=1 (queue active) Sep 20 04:29:44 vegaserve postfix/smtpd[18965]: disconnect from hubrelay-rd.bt.com[62.239.224.99] Sep 20 04:29:44 vegaserve postfix/smtp[25748]: 946F51E87556C: to=, orig_to=, relay=none, delay=0.04, delays=0.04/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:44 vegaserve postfix/bounce[25897]: warning: 946F51E87556C: undeliverable postmaster notification discarded Sep 20 04:29:44 vegaserve postfix/qmgr[14378]: 946F51E87556C: removed Sep 20 04:29:45 vegaserve postfix/smtpd[14816]: connect from col0-omc2-s12.col0.hotmail.com[65.55.34.86] Sep 20 04:29:47 vegaserve postfix/smtpd[16900]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:47 vegaserve postfix/cleanup[24879]: 961721E87556C: message-id=<[email protected] Sep 20 04:29:47 vegaserve postfix/qmgr[14378]: 961721E87556C: from=, size=1082, nrcpt=1 (queue active) Sep 20 04:29:47 vegaserve postfix/smtpd[16900]: disconnect from mta-35d2.livingsocial.com[199.91.53.210] Sep 20 04:29:47 vegaserve postfix/smtp[25748]: 961721E87556C: to=, orig_to=, relay=none, delay=0.04, delays=0.04/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:47 vegaserve postfix/bounce[25995]: warning: 961721E87556C: undeliverable postmaster notification discarded Sep 20 04:29:47 vegaserve postfix/qmgr[14378]: 961721E87556C: removed Sep 20 04:29:50 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: rini - short names not allowed from @ [201.80.253.153]ERR: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:29:50 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:29:52 vegaserve postfix/smtpd[24478]: connect from col0-omc2-s13.col0.hotmail.com[65.55.34.87] Sep 20 04:29:52 vegaserve postfix/smtpd[18923]: connect from www.idbwplan.com[193.181.254.21] Sep 20 04:29:55 vegaserve postfix/smtpd[15968]: connect from 105-48.mta.dotmailer.com[94.143.105.48] Sep 20 04:29:56 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: ringo - short names not allowed from @ [201.80.253.153]ERR: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:29:56 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:30:00 vegaserve postfix/smtpd[18772]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:30:01 vegaserve postfix/cleanup[24825]: 1DAD71E87556C: message-id=<[email protected] Sep 20 04:30:01 vegaserve postfix/qmgr[14378]: 1DAD71E87556C: from=, size=1022, nrcpt=1 (queue active) Sep 20 04:30:01 vegaserve postfix/smtpd[18772]: disconnect from mail95.us2.mcsv.net[173.231.139.95] Sep 20 04:30:01 vegaserve postfix/smtp[25748]: 1DAD71E87556C: to=, orig_to=, relay=none, delay=0.06, delays=0.05/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:30:01 vegaserve postfix/bounce[25897]: warning: 1DAD71E87556C: undeliverable postmaster notification discarded Sep 20 04:30:01 vegaserve postfix/qmgr[14378]: 1DAD71E87556C: removed Sep 20 04:30:02 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: ritsuko - short names not allowed from @ [201.80.253.153]ERR: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:30:02 vegaserve postfix/smtpd[16911]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:30:02 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:30:02 vegaserve postfix/cleanup[24879]: 8AADD1E87556C: message-id=<[email protected] Sep 20 04:30:02 vegaserve postfix/qmgr[14378]: 8AADD1E87556C: from=, size=1003, nrcpt=1 (queue active) Sep 20 04:30:02 vegaserve postfix/smtpd[16911]: disconnect from mr133.createsend.com[184.106.86.133] Sep 20 04:30:02 vegaserve postfix/smtp[25748]: 8AADD1E87556C: to=, orig_to=, relay=none, delay=0.02, delays=0.02/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself)

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• win2008 r2 enterprise "Message Queuing" "Access is denied" "The list of messages cannot be retrieved"

  - by gerryLowry

  on my win7, I run compmgmt.msc and drill to a private queue folder ... when I click "Queue messages" or "Journal messages", I either see the messages, or "There are no items to show in this view". BUT, on win2008 R2 Enterprise, I run compmgmt.msc and drill to a private queue folder ... when I click "Queue messages" or "Journal messages", I see "There are no items to show in this view" which AFAIK is correct BUT I get this unwanted dialog: Message Queuing x ------------------------ (X) The list of messages cannot be retrieved. Error: Access is denied. [[ OK ]] On both computers, I'm a member of local Administrators. I'm concerned as a developer because I'm very soon going to be testing WCF/MSMQ software that works on my Win7 laptop. How to I get past this denied access problem? thnx / g.

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• IBM Websphere MQ Server alternatives

  - by I Clark

  Are there any alternatives to IBM Websphere MQ Server for Windows? We need to access a remote Queue Manager that doesn't support client connections (only Queue Manager to Queue Manager). I've noticed that there are some BizTalk Host Integration adapters but they only seem to behave as clients (one transactional, the other non-transactional).

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• Change sysout logging level for Weblogic

  - by Justin Voss

  When I run a local copy of Weblogic, I like to see the output in the console so that I can observe my app's logging messages. But, Weblogic spits out a lot of log messages I don't care about, like these: [ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)' 08-29-2010 01:02:21 INFO Getting a JNDI connection [ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)' 08-29-2010 01:02:21 INFO Connection Returned. Elapsed time to acquire=0ms. [ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)' 08-29-2010 01:02:21 INFO Getting a JNDI connection [ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)' 08-29-2010 01:02:21 INFO Connection Returned. Elapsed time to acquire=0ms. Can I configure Weblogic to not output those? I assume that I can change the logging level to something higher than INFO and that should fix it?

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• Sun Grid Engine (SGE) Jobs Not Visible After Adding virtual_free

  - by Gary Richardson

  I'm trying to to use virtual_free to limit the number of large memory jobs running each grid node in my cluster. This seems to be working as expected. After I modified my code to submit jobs with the memory instances, qstat -f -q $queueName no longer shows a list of jobs waiting for a slot. The jobs are submitted with a specific queue (-q $queueName). I'm guessing this is happening due to the magic of SGE queue selection. Is there a way to make my jobs show up as before? Thanks! UPDATE I'm using: qstat -f -u * -q $queueName to view the queue. If I drop the queue argument, I can see the jobs. If I examine a specific job, I can see that it has the correct hard_queue_list value set. I'm also using Sun Grid Engine 6.1u4

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• Two threads in a rails initializer file seems to not run them properly

  - by Luccas

  Initially I was using one thread to listen a queue from amazon and works perfectly. aws.rb Thread.new do queue1 = AWS::SQS::Queue.new(SQSADDR['my_queue']) queue1.poll do |msg| ... but now I appended another thread to listen another queue: ... Thread.new do queue2 = AWS::SQS::Queue.new(SQSADDR['my_another_queue']) queue2.poll do |msg| ... and now it seems to not work. Only the last one receives response... I have to join the threads? I can't understand What is going on?

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• Run command before and after printing with CUPS?

  - by leto

  Hello, this is a home setup. A central printer server (Linux) manages the queue, a HP 2430DTN is attached to it via 100Mbit/sec Ethernet. The printer is hooked up to a managable power source. A shell script watches the queue on the server (lpstat -o) and turn on the printer when there is a job. If the queue is empty for 10 minutes it turns the printer off. Now this setup messes up, stops the printer etc. after a couple of weeks and is in general "not so reliable". I now know how to change the stop-printer thing, but: Is there a way to run my turn printer on script and turn printer off script directly from cups without watching the queue? That would be so cool!

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• Disable ALTQ for internal network traffic

  - by javanix

  I currently have a FreeBSD 8.2 media server set up on my LAN that I use to stream my music from. I also have an SSH login that I use to do file transfers to and from this server remotely. I would like to set up ALTQ (and have gotten this working) to limit my outgoing bandwidth from the server for SSH traffic. However, configuring ALTQ this way is also limiting my internal traffic (and thus interfering with my music streaming) since I am only using a single network interface. Can anyone show me how I would use PF and ALTQ to limit outgoing WAN traffic while allowing all internal LAN traffic to go through unhindered? ext_if="eth0" int_if="eth0" altq on eth0 cbq bandwidth 1Mb queue { std, ssh } queue std bandwidth 80% cbq(default) queue ssh bandwidth 20% cbq(ecn) pass out on eth0 proto tcp to port 22 queue ssh eth0 is my LAN interface, my total WAN bandwidth on my cable connection is 1Mb/s, and my internal network is 10/100.

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• How to have Vista OS send documents to printer without waiting in front?

  - by Greenleader

  Hi, I got a print server on our old printer. I have a problem, because Vista has its own queue. I want to bypass this queue and send everything straight away to printer so the print server deals with queue and not vista. Problem is, when second document is being printed from the same computer after first one. Vista is still waiting for info on finishing the first job even 5 minutes after it was REALLY finished.

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