Search Results

Search found 2287 results on 92 pages for 'reads'.

Page 57/92 | < Previous Page | 53 54 55 56 57 58 59 60 61 62 63 64  | Next Page >

• Criteria for selecting timeout value?

  - by stijn

  Situation: a piece of software reads frames of data from a file in a seperate thread and puts it on a queue, emptied by another thread. That second thread periodically checks on the queue and fails rather gracefully, by showing an error message stating the read timed out, if no data is available within a certain amount of time. Initially this timeout was set to 200mSec. There was no real reasoning behind that constant though, but it worked fine. We measured on a couple of machines and for large data frames, larger than what would be used by customers, a read took like 20mSec whith no other load on the machine. However one customer now gets timeout errors now and then (on the second try all is fine, probably the file is in cache or the virus scanner leaves it alone). The programmers are like 'well, yeah, but that customer's machine is full of cruft, virus scanners, tons of unneeded background processes etc'. Of course the customer is like 'hey this should just work, shouldn't it'? While the programers have a point, since the software is heavy enough to validate the need for a dedicated machine, that does not make the customer happy. Increasing the timeout to 2 seconds, for example, solves the problem. But I'd like to make a proper decision now instead of just randomly pick some magic constant that is probably ok in 99% of cases. What criteria should be used for that? We could just pick a large number, but that feels wrong. (and then we end up with a program that has the horrible bahaviour of hanging when trying to read from a disconnected drive for instance, whereas we'd rather make it show an error right away). Or we could make the timeout value a user setting, but then we need to ducument it clearly and even then not all customers are tech savy enough to really understand what it does. Or we could try and wait until another customer reports timeouts and increase the value again. And again. Until we find something ok for 99.99% of the cases.. Any good practice for this type of situation?

  Read the article

• Homepage issue on Google [closed]

  - by nico

  We have recently updated our website www.blinds4uk.co.uk with a new homepage containing additional features and more on page content but since then we have lost primary keyword positions and the home page has disappeared completely. The only time it appears is for an exact search ‘blinds4uk’. Today I took snippets of 'unique content' from the homepage and put this into the 'google search' but our homepage was nowhere to be found. When I did the same in ‘Yahoo’ the homepage came up. Are we missing something? We ranked in the top 4 for primary kw terms 'blinds uk' & 'uk blinds' but now we don’t show anywhere for these terms. Our homepage has never ranked well for the primary kw 'blinds' yet our internal pages rank very well with many pages on page 1 of google uk. We employed an SEO firm for 9 months to help us establish issues with the homepage but they never could, so we got rid. We have been trying to get to the root cause of why the homepage ranks so poorly for a number of years and only yesterday we established that we had the meta tag directly below the tag and our title & meta description were further down the page; we have today corrected. Not sure what effect this would have on the way Google reads the homepage but we are trying everything to try and get the homepage ranking fro those primary kw's. Our current developers & ex SEO guys are all part of the same company and cannot pin-point anything other than saying carryon with their SEO team because it will take time but just comes across as a milking exercise. Another thing which I have found very strange is the data from our 'traffic audience'. We are a UK based website yet our traffic stats were showing as;- UK 36.6%, Denmark 35.8% and India 27.6%. – don’t make sense to me! Is there anybody out there that could simply point us in the right direction to the problem(s), so we can fix once and for all? Could there be anything within the code that is causing the home page not to display within google for our primary kw's terms such as blinds, window blinds etc. I would appreciate any advice at all that may help us in our quest to sort this homepage issue once and for all

  Read the article

• Are closures with side-effects considered "functional style"?

  - by Giorgio

  Many modern programming languages support some concept of closure, i.e. of a piece of code (a block or a function) that Can be treated as a value, and therefore stored in a variable, passed around to different parts of the code, be defined in one part of a program and invoked in a totally different part of the same program. Can capture variables from the context in which it is defined, and access them when it is later invoked (possibly in a totally different context). Here is an example of a closure written in Scala: def filterList(xs: List[Int], lowerBound: Int): List[Int] = xs.filter(x => x >= lowerBound) The function literal x => x >= lowerBound contains the free variable lowerBound, which is closed (bound) by the argument of the function filterList that has the same name. The closure is passed to the library method filter, which can invoke it repeatedly as a normal function. I have been reading a lot of questions and answers on this site and, as far as I understand, the term closure is often automatically associated with functional programming and functional programming style. The definition of function programming on wikipedia reads: In computer science, functional programming is a programming paradigm that treats computation as the evaluation of mathematical functions and avoids state and mutable data. It emphasizes the application of functions, in contrast to the imperative programming style, which emphasizes changes in state. and further on [...] in functional code, the output value of a function depends only on the arguments that are input to the function [...]. Eliminating side effects can make it much easier to understand and predict the behavior of a program, which is one of the key motivations for the development of functional programming. On the other hand, many closure constructs provided by programming languages allow a closure to capture non-local variables and change them when the closure is invoked, thus producing a side effect on the environment in which they were defined. In this case, closures implement the first idea of functional programming (functions are first-class entities that can be moved around like other values) but neglect the second idea (avoiding side-effects). Is this use of closures with side effects considered functional style or are closures considered a more general construct that can be used both for a functional and a non-functional programming style? Is there any literature on this topic? IMPORTANT NOTE I am not questioning the usefulness of side-effects or of having closures with side effects. Also, I am not interested in a discussion about the advantages / disadvantages of closures with or without side effects. I am only interested to know if using such closures is still considered functional style by the proponent of functional programming or if, on the contrary, their use is discouraged when using a functional style.

  Read the article

• More elegant way to avoid hard coding the format of a a CSV file?

  - by dsollen

  I know this is trivial issue, but I just feel this can be more elegant. So I need to write/read data files for my program, lets say they are CSV for now. I can implement the format as I see fit, but I may have need to change that format later. The simply thing to do is something like out.write(For.getValue()+","+bar.getMinValue()+","+fi.toString()); This is easy to write, but obviously is guilty of hard coding and the general 'magic number' issue. The format is hard-coded, requires parsing of the code to figure out the file format, and changing the format requires changing multiple methods. I could instead have my constants specifying the location that I want each variable to be saved in the CSV file to remove some of the 'magic numbers'; then save/load into the an array at the location specified by the constants: int FOO_LOCATION=0; int BAR_MIN_VAL_LOCATION=1; int FI_LOCATION=2 int NUM_ARGUMENTS=3; String[] outputArguments=new String[NUM_ARGUMENTS]; outputArguments[FOO_LOCATION] = foo.getValue(); outputArgumetns[BAR_MIN_VAL_LOCATION] = bar.getMinValue(); outptArguments[FI_LOCATOIN==fi.toString(); writeAsCSV(outputArguments); But this is...extremely verbose and still a bit ugly. It makes it easy to see the format of existing CSV and to swap the location of variables within the file easily. However, if I decide to add an extra value to the csv I need to not only add a new constant, but also modify the read and write methods to add the logic that actually saves/reads the argument from the array; I still have to hunt down every method using these variables and change them by hand! If I use Java enums I can clean this up slightly, but the real issue is still present. Short of some sort of functional programming (and java's inner classes are too ugly to be considered functional) I still have no obvious way of clearly expressing what variable is associated with each constant short of writing (and maintaining) it in the read/write methods. For instance I still need to write somewhere that the FOO_LOCATION specifies the location of foo.getValue(). It seems as if there should be a prettier, easier to maintain, manner for approaching this? Incidentally, I'm working in java at the moment, however, I am interested conceptually about the design approach regardless of language. Some library in java that does all the work for me is definitely welcome (though it may prove more hassle to get permission to add it to the codebase then to just write something by hand quickly), but what I'm really asking is more about how to write elegant code if you had to do this by hand.

  Read the article

• How do I create weapon attachments?

  - by Tron86

  My question is; I am developing a game for XNA and I am trying to create a weapon attachment for my player model. My player model loads the .md3 format and reads tags for attachment points. I am able to get the tag of my model's hand. And I am also able to get the tag of my weapon's handle. Each tag I am able to get the rotation and position of and this is how I am calculating it: Model.worldMatrix = Matrix.CreateScale(Model.scale) * Matrix.CreateRotationX(-MathHelper.PiOver2) * Matrix.CreateRotationY(MathHelper.PiOver2); Pretty simple, the player model has a scale and its orientation(it loads on its side so I just use a 90 degree X axis rotation, and a Y axis rotation to face away from the camera). I then calculate the torso tag on the lower body, which gives me a local coordinate at the waist. Then I take that matrix and calculate the tag_weapon in the upper body. This gives me the hand position in local space. I also get the rotation matrix from that tag that I store for later use. All this seems to work fine. Now I move onto my weapon: Matrix weaponWorld = Matrix.CreateScale(CurrentWeapon.scale) * Matrix.CreateRotationX(-MathHelper.PiOver2) * TagRotationMatrix * Matrix.CreateTranslation(HandTag.Position) * Matrix.CreateRotationY(PlayerRotation) * Matrix.CreateTranslation(CollisionBody.Position) * You may notice the weapon matrix gets rotated by 90 degress on the X axis as well. This is because they load in on their sides. Once again this seems pretty simple and follows the SRT order I keep reading about. My TagRotation matrix is the hand's rotation. HandTag.Position is its position in local space. CreateRotationY(PlayerRotation) is the player's rotation in world space, and the CollisionBody.Position is the player's world location. Everything seems to be in order, and almost works in game. However when the gun spawns and follows the player's hand it seems to be flipped on an axis every couple frames. Almost like the X or Y axis is being inversed then put right back. Its hard to explain and I am totally stumped. Even removing all my X axis fixes does nothing to solve the problem. Hopefully I explained everything enough as I am a bit new to this! Thanks!

  Read the article

• Deploying, but without those pesky test files!

  - by Chris Skardon

  Silverlight testing is great, we all know that (don’t we??), we’re expected to do it as part of the development process, but once we’ve got an awesome application written and we come to deploy it, we don’t want the test files going out with it… You might be like me, have the files in a Web project – let’s face it, that’s how we’re pushed into doing it… So let’s stick with it! Now. I’m deploying via the wonders of the Web Deployment shizzle, but this also applies to the classic ‘installer’ project as well.. Baaaasically, we’re going to use the ‘Debug’ / ‘Release’ configurations to include given files. ?? OK, you know in the top of your visual studio editor, you (usually) have a drop down which predominantly reads ‘Debug’? Those are ‘configurations’. Mostly we don’t bother changing it, primarily due to laziness, but also the fact that we generally don’t see ‘Release’ as actually doing anything other than making it harder to find problems :) Well today my friends we’re going to change that bad boy… The next few steps are just helping you set up a new ‘Debug’ configuration, but you can just switch to the ‘Release’ configuration and skip to the end… First let’s go to the Configuration Manager. There are multiple ways, through the ‘Build’ menu (at the bottom), or via the drop down which currently has ‘Debug’ in it :) Got it? Select ‘New’ from the ‘Active solution configuration’ drop down: Create a new configuration, kind of like the picture below shows (or for those graphically challenged – Name: DebugWithNoTests, and Copy settings from: ‘Debug’, ensuring the ‘Create new project configurations’ checkbox is checked). Press OK. VS will do some shizzle, and in the Configuration manager, you will see pretty much exactly what you did before, only with ‘Debug’ replaced with ‘DebugWithNoTests’. Turn off the build options for the test projects. We won’t need them.. IF you skipped down from the top, this is where you’ll be wanting to stop!!! Close and now we’re one notepad step away from achieving our goals. Yes, I said notepad. You can’t do what we’re going to do in VS. (Pity). Go to the folder where your web project is, and right click on the ‘.csproj’ file. Now open it with notepad. Head on down to the ‘<Content Include’ bits, they’ll look like this: <ItemGroup> <Content Include="ClientBin\Tests.xap" /> ... </ItemGroup> Take this and modify each of the files you don’t want deployed and change to: <Content Include="ClientBin\Tests.xap" Condition="'$(Configuration)' == 'Debug'" /> Once you’ve got that sorted publish your project, once with the Debug configuration selected, and another with any other configuration (‘Release’, ‘DebugWithNoTests’ etc).. No files! Huzzah!

  Read the article

• High traffic chat - how to check if there is new message and show it for all users

  - by user2633999

  I already had question about this but obviously it was not accepted very well, apparently too long when it's actually more information so you could have given me better answer. Ok, I will be much clearer now. Best possible logic to develop scalable chat in terms of stability, storing/reading messages on chat, updating chat on new message for all users etc.? I have most of this developed, the logic I think I miss is -- check if there is new message and show it for all users. I have this implemented but it crashes the site due to its traffic of 300k-400k people, so that's my main question. The chat is PHP based and uses Pusher (www.pusher.com) for instant messaging but it lacks what I need because it's more like a websocket. I'm using hardcoded files to keep messages (want to avoid database as much as possible). It's a no extension type of file, I'm sure you know. I'm getting crash with $fp = fopen(..., "w"); // pretend ... is the path and filename fwrite($fp, $msg); //hardcode the message fclose($fp); where $msg is the message itself. I'm having 1 file per message. I show last 150 messages = 150 file accesses and reads, yeah it's too much I guess. I have better logic now which I'm pursuing and that is 1 file with last 50-100 messages at all time. Sure it should be much better. How does it crash, that's the trickiest part because everything seems ordinary, believe me it is difficult to determine what exactly crashes the site, but in like 5 minutes when I try to open the site it's gone, then I put the old content without chat and is back online again. I'm having jquery post every 1 second to check if there is new message. I'm using timestamp in a special file where I keep the time last message was sent and if ((time() - time in file) <= 2) = reload last 150 messages including the last one. Too much input/output, write/read or however to say it I think is what crashes the site.

  Read the article

• Sql Table Refactoring Challenge

  Ive been working a bit on cleaning up a large table to make it more efficient.  I pretty much know what I need to do at this point, but I figured Id offer up a challenge for my readers, to see if they can catch everything I have as well as to see if Ive missed anything.  So to that end, I give you my table: CREATE TABLE [dbo].[lq_ActivityLog]( [ID] [bigint] IDENTITY(1,1) NOT NULL, [PlacementID] [int] NOT NULL, [CreativeID] [int] NOT NULL, [PublisherID] [int] NOT NULL, [CountryCode] [nvarchar](10) NOT NULL, [RequestedZoneID] [int] NOT NULL, [AboveFold] [int] NOT NULL, [Period] [datetime] NOT NULL, [Clicks] [int] NOT NULL, [Impressions] [int] NOT NULL, CONSTRAINT [PK_lq_ActivityLog2] PRIMARY KEY CLUSTERED ( [Period] ASC, [PlacementID] ASC, [CreativeID] ASC, [PublisherID] ASC, [RequestedZoneID] ASC, [AboveFold] ASC, [CountryCode] ASC)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]) ON [PRIMARY] And now some assumptions and additional information: The table has 200,000,000 rows currently PlacementID ranges from 1 to 5000 and should support at least 50,000 CreativeID ranges from 1 to 5000 and should support at least 50,000 PublisherID ranges from 1 to 500 and should support at least 50,000 CountryCode is a 2-character ISO standard (e.g. US) and there is a country table with an integer ID already.  There are < 300 rows. RequestedZoneID ranges from 1 to 100 and should support at least 50,000 AboveFold has values of 1, 0, or 1 only. Period is a date (no time). Clicks range from 0 to 5000. Impressions range from 0 to 5000000. The table is currently write-mostly.  Its primary purpose is to log advertising activity as quickly as possible.  Nothing in the rest of the system reads from it except for batch jobs that pull the data into summary tables. Heres the current information on the database tables size: Design Goals This table has been in use for about 5 years and has performed very well during that time.  The only complaints we have are that it is quite large and also there are occasionally timeouts for queries that reference it, particularly when batch jobs are pulling data from it.  Any changes should be made with an eye toward keeping write performance optimal  while trying to reduce space and improve read performance / eliminate timeouts during read operations. Refactor There are, I suggest to you, some glaringly obvious optimizations that can be made to this table.  And Im sure there are some ninja tweaks known to SQL gurus that would be a big help as well.  Ill post my own suggested changes in a follow-up post for now feel free to comment with your suggestions. Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

  Read the article

• What's the best way to cache a growing database table for html generation?

  - by McLeopold

  I've got a database table which will grow in size by about 5000 rows a hour. For a key that I would be querying by, the query will grow in size by about 1 row every hour. I would like a web page to show the latest rows for a key, 50 at a time (this is configurable). I would like to try and implement memcache to keep database activity low for reads. If I run a query and create a cache result for each page of 50 results, that would work until a new entry is added. At that time, the page of latest results gets new result and the oldest results drops off. This cascades down the list of cached pages causing me to update every cache result. It seems like a poor design. I could build the cache pages backwards, then for each page requested I should get the latest 2 pages and truncate to the proper length of 50. I'm not sure if this is good or bad? Ideally, the mechanism I use to insert a new row would also know how to invalidate the proper cache results. Has someone already solved this problem in a widely acceptable way? What's the best method of doing this? EDIT: If my understanding of the MYSQL query cache is correct, it has table level granularity in invalidation. Given the fact that I have about 5000 updates before a query on a key should need to be invalidated, it seems that the database query cache would not be used. MS SQL caches execution plans and frequently accessed data pages, so it may do better in this scenario. My query is not against a single table with TOP N. One version has joins to several tables and another has sub-selects. Also, since I want to cache the html generated table, I'm wondering if a cache at the web server level would be appropriate? Is there really no benefit to any type of caching? Is the best advice really to just allow a website site query to go through all the layers and hit the database every request?

  Read the article

• Are we queueing and serializing properly?

  - by insta

  We process messages through a variety of services (one message will touch probably 9 services before it's done, each doing a specific IO-related function). Right now we have a combination of the worst-case (XML data contract serialization) and best-case (in-memory MSMQ) for performance. The nature of the message means that our serialized data ends up about 12-15 kilobytes, and we process about 4 million messages per week. Persistent messages in MSMQ were too slow for us, and as the data grows we are feeling the pressure from MSMQ's memory-mapped files. The server is at 16GB of memory usage and growing, just for queueing. Performance also suffers when the memory usage is high, as the machine starts swapping. We're already doing the MSMQ self-cleanup behavior. I feel like there's a part we're doing wrong here. I tried using RavenDB to persist the messages and just queueing an identifier, but the performance there was very slow (1000 messages per minute, at best). I'm not sure if that's a result of using the development version or what, but we definitely need a higher throughput[1]. The concept worked very well in theory but performance was not up to the task. The usage pattern has one service acting as a router, which does all reads. The other services will attach information based on their 3rd party hook, and forward back to the router. Most objects are touched 9-12 times, although about 10% are forced to loop around in this system for awhile until the 3rd parties respond appropriately. The services right now account for this and have appropriate sleeping behaviors, as we utilize the priority field of the message for this reason. So, my question, is what is an ideal stack for message passing between discrete-but-LAN'ed machines in a C#/Windows environment? I would normally start with BinaryFormatter instead of XML serialization, but that's a rabbit hole if a better way is to offload serialization to a document store. Hence, my question. [1]: The nature of our business means the sooner we process messages, the more money we make. We've empirically proven that processing a message later in the week means we are less likely to make that money. While performance of "1000 per minute" sounds plenty fast, we really need that number upwards of 10k/minute. Just because I'm giving numbers in messages per week doesn't mean we have a whole week to process those messages.

  Read the article

• LSI RAID monitor reports "Consistency Check inconsistency logging disabled"

  - by carlpett

  I have a server with a LSI MegaRAID 9261-8i controller. Recently I started getting alerts like this one: Controller ID: 1 Consistency Check inconsistency logging disabled, too many inconsistencies on VD: 0 Generated on:Sat May 12 04:06:40 2012 SYSTEM DETAILS--- IP Address: 192.168.1.29 OS Name: Windows 7 x64 OS Version: 6.01 Driver Name: megasas.sys Driver Version: 4.5.1.64 IMAGE DETAILS--- BIOS Version: 2.120.33-1197 Firmware Package Version: 12.12.0-0045 Firmware Version: 3.21.00_4.11.05.00_0x05000000 VD 0 is a RAID mirror containing the system disk. I have searched and read, but cannot find any trace of how to actually do anything about this. I tried running a scandisk but that did not find anything (as I expected, since scandisk reads the disks as exposed by the controller, right?). The MegaRAID Storage Manager does not as far as I can see have any options for checking or fixing physical disks. The program claims the VD is "healty", and both disks have Error count 0. Also a bit strange is the System details in the message... The IP address is associated with the RAS (dial in) interface, and the OS should be Windows Server 2011 SBS. Has anyone else experienced this before? What can be done?

  Read the article

• PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/json.so' undefined symbol: ZVAL_DELREF

  - by crmpicco

  I have an issue where I am unable to use JSON, which would appear to be because of the following error. There is another thread on this forum this touches on a similar issue, but it's not quite the same. I am using CentOS 5.6 and have the following pear packages installed: [crmpicco@eq-www-php53 ~]$ pear list PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/json.so' - /usr/lib64/php/modules/json.so: undefined symbol: ZVAL_DELREF in Unknown on line 0 Installed packages, channel pear.php.net: ========================================= Package Version State Archive_Tar 1.3.7 stable Auth_SASL 1.0.2 stable Console_Getopt 1.3.1 stable Image_Barcode 1.1.2 stable Mail 1.1.14 stable Net_SMTP 1.2.10 stable Net_Socket 1.0.8 stable PEAR 1.9.4 stable Structures_Graph 1.0.4 stable XML_RPC 1.5.4 stable XML_Util 1.2.1 stable json 1.2.1 stable and have the following PHP packages installed: [crmpicco@eq-www-php53 ~]$ yum list installed | grep php php.x86_64 5.3.10-1.w5 installed php-cli.x86_64 5.3.10-1.w5 installed php-common.x86_64 5.3.10-1.w5 installed php-devel.x86_64 5.3.10-1.w5 installed php-gd.x86_64 5.3.10-1.w5 installed php-ldap.x86_64 5.3.10-1.w5 installed php-mcrypt.x86_64 5.3.10-1.w5 installed php-mysql.x86_64 5.3.10-1.w5 installed php-pdo.x86_64 5.3.10-1.w5 installed php-pear.noarch 1:1.9.4-1.w5 installed php-pear-Net-Socket.noarch 1.0.8-1.el5.centos installed php-soap.x86_64 5.3.10-1.w5 installed php-xml.x86_64 5.3.10-1.w5 installed The error: [crmpicco@eq-www-php53 ~]$ php -v PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/json.so' - /usr/lib64/php/modules/json.so: undefined symbol: ZVAL_DELREF in Unknown on line 0 PHP 5.3.10 (cli) (built: Feb 2 2012 23:23:12) Copyright (c) 1997-2012 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies My repolist reads as: [crmpicco@eq-www-php53 ~]$ yum repolist Loaded plugins: changelog, fastestmirror Excluding Packages in global exclude list Finished repo id repo name status base CentOS-5 - Base 3,548+43 epel Extra Packages for Enterprise Linux 5 - x86_64 6,815+156 extras CentOS-5 - Extras 245+23 rpmforge Red Hat Enterprise 5 - RPMforge.net - dag 11,016+67 updates CentOS-5 - Updates 233 webtatic Webtatic Repository 5 - x86_64 211+183 repolist: 22,068 I am getting HTTP 500 errors everywhere that I use JSON so my application is non functional right now.

  Read the article

• "Dictionary problem." Error with VMPlayer

  - by George Mauer

  I'm pretty new to using vmware virtualization (been a virtualbox user) so I'm hoping you guys can help me out. I recently got an external usb disk containing a vm for a client, downloaded vmplayer, set it up with "Open a Virtual Machine", ran it, easy as pie. After working with it a bit this morning, I shut the VM down and now trying to start it back up again I get this: I tried removing the vm from my library, now it happens whenever I try to add it back in. In the meantime, I can still access other virtual machines so it seems like the problem might be with the virtual disk. So two questions: This is obviously not a very helpful error message. Where can I go to get more information? My Application EventLog doesn't contain anything from VMWare. What steps can I take to fix the problem? Edit: A couple more pieces of information. I did not take any snapshots. I don't think VM Player even has that ability. I have a zip file of (what I assume) is the state of the VM when it was sent to me. I cannot unzip it as it is huge and simply requires more HD space than I have available but I did extract the vmx file and examine it. Other than the UUIDs and the fact that mine reads cleanShutdown = "FALSE" they are identical. The log contains the following lines Jun 23 10:11:18.080: vmx| SNAPSHOT: SnapshotConfigInfoRead: Unable to load dict from 'E:....\MachineName.vmsd'. Jun 23 10:11:18.080: vmx| SNAPSHOT: SnapshotConfigInfoRead failed for file 'E:....\MachineName.vmx': Dictionary problem (6) Jun 23 10:11:18.082: vmx| SNAPSHOT: Snapshot_TimeStampTiers failed: Dictionary problem (6)

  Read the article

• Moving from ColdFusion 8 to ColdFusion 10 - Migration Fails

  - by XenoFoxx

  After having made several attempts to migrate from a ColdFusion 8 Standard server to a ColdFusion 10 Standard server, it feels like I am "almost" there. I'm using the 64 bit installer from Adobe's website. I'm using a Windows Server 2008 (64 bit) server with IIS 7.0. The installation itself goes smooth and the services start and are running. But at the end of the installation it says "ColdFusion Installed, but with errors" and it generates a log file. The log file reads: Migration Error: : Check that "C:\ColdFusion8" is a valid directory and is an installation of either ColdFusion MX 6 or ColdFusionMX 7 and further down says: Status: WARNING Additional Notes: WARNING - Could not migrate settings from previous version of ColdFusion Custom Action: com.macromedia.ia.action.MigrateColdFusionAction Status: ERROR Additional Notes: ERROR - class com.macromedia.ia.action.MigrateColdFusionAction NonfatalInstallException null The applicationHost.config file has new XML referencing the ColdFusion 10 directory, but IIS is still using ColdFusion 8. I'm also going to guess that the settings in the CF Administrator have not been migrated based on the message in the log above. I've followed the instructions on Adobe's site, including ensuring that ASP.NET, CGI, ISAPI Extensions, and ISAPI Filters are all enabled. I've also enabled IIS 6 Metabase Compatibility even though I don't think it's needed. Has anyone else had similar issues with ColdFusion 10 and IIS 7. Currently I have uninstalled CF 10 and reverted back to

  Read the article

• The System Event Notification Service service terminated with the following error: Overlapped I/O operation is in progress

  - by user38923

  When I start my Windows 7, I get a notification The system event notification service could not be started.... As a result, I dont have Aero, even though my Windows Experience Index is 3.2. Aero used to work fine before today and I have not installed any new application. I have checked the event log and it reads: The System Event Notification Service service terminated with the following error: Overlapped I/O operation is in progress. I am not sure what this means. I have seen the services.msc and everything is fine there. Moreover the startup time has also extended and the Please wait stays for more than a minute. This is a sudden problem as everything used to work fine until today. For Aero I have tried starting Desktop Window manager (as pointed out by the trouble shooter), but with avail. From what I could understand from the forums, the lack of Aero and increased start-up time comes from a single problem of the System Event Notification Service. This is a personal Computer and I have no active directories installed.

  Read the article

• Dell Management Packs in System Center Operations Manager 2007 R2?

  - by bwerks

  Hey all, I recently set up SCOM in a small business network environment. The root management server is a Dell Poweredge 2950, and I'd like to use SCOM to monitor it using Dell's management packs. I've imported the management packs into the SCOM deployment and followed Dell's installation instructions, but it doesn't seem to be fully working yet. Currently, the Diagram views in the Dell tree (Monitoring tab) seem to show me the server's place in the network topology, so it seems that at least part of it is working. However, none of the reports under "Performance and Power Monitoring Views" provide any information. When clicking on one of them (Power Consumption (Watts), for instance), the display area is blank and there is a tooltip visible that reads "No performance counter is selected. To select a counter, place a check mark in the Show column in legend below." However, in the legend, there's nothing there for me to check. I've installed OpenManage 6.2 on the server as per the Dell documentation, but I don't know what else I could have done that I missed. Does this sound like a familiar problem to anyone?

  Read the article

• rpm build from src file

  - by danielrutledge

  Hi all, I'm trying to build from a *.src.rpm file on FC 12 in such a way that the files are distributed a across my system as they would with a normal binary build (in this case, *.h files end up in /usr/include). When I ran rpmbuild, the headers weren't present. Here's my rpmbuild command: [root@localhost sphirewalld]# rpm -ivv /home/dan/Downloads/gtest-1.3.0-2.20090601svn257.fc12.src.rpm ============== /home/dan/Downloads/gtest-1.3.0-2.20090601svn257.fc12.src.rpm Expected size: 489395 = lead(96)+sigs(180)+pad(4)+data(489115) Actual size: 489395 loading keyring from pubkeys in /var/lib/rpm/pubkeys/*.key couldn't find any keys in /var/lib/rpm/pubkeys/*.key loading keyring from rpmdb opening db environment /var/lib/rpm/Packages cdb:mpool:joinenv opening db index /var/lib/rpm/Packages rdonly mode=0x0 locked db index /var/lib/rpm/Packages opening db index /var/lib/rpm/Name rdonly mode=0x0 read h# 931 Header sanity check: OK added key gpg-pubkey-57bbccba-4a6f97af to keyring read h# 1327 Header sanity check: OK added key gpg-pubkey-7fac5991-4615767f to keyring read h# 1420 Header sanity check: OK added key gpg-pubkey-16ca1a56-4a100959 to keyring read h# 1896 Header sanity check: OK added key gpg-pubkey-a3a882c1-4a1009ef to keyring Using legacy gpg-pubkey(s) from rpmdb /home/dan/Downloads/gtest-1.3.0-2.20090601svn257.fc12.src.rpm: Header SHA1 digest: OK (3e98ed9b1631395d417e00f35c83ebe588ea9d3b) added source package [0] found 1 source and 0 binary packages Expected size: 489395 = lead(96)+sigs(180)+pad(4)+data(489115) Actual size: 489395 InstallSourcePackage at: psm.c:232: Header SHA1 digest: OK (3e98ed9b1631395d417e00f35c83ebe588ea9d3b) gtest-1.3.0-2.20090601svn257.fc12 ========== Directories not explicitly included in package: 0 /root/rpmbuild/SOURCES/ 1 /root/rpmbuild/SPECS/ ========== warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root fini 100664 1 ( 0, 0) 478034 /root/rpmbuild/SOURCES/gtest-1.3.0.tar.bz2;4ba93ce1 unknown warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root fini 100644 1 ( 0, 0) 30505 /root/rpmbuild/SOURCES/gtest-svnr257.patch;4ba93ce1 unknown warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root fini 100644 1 ( 0, 0) 2732 /root/rpmbuild/SPECS/gtest.spec;4ba93ce1 unknown GZDIO: 63 reads, 511788 total bytes in 0.005930 secs closed db index /var/lib/rpm/Name closed db index /var/lib/rpm/Packages closed db environment /var/lib/rpm/Packages Thanks for your help.

  Read the article

• ZFS - zpool ARC cache plus L2ARC benchmarking

  - by jemmille

  I have been doing lots of I/O testing on a ZFS system I will eventually use to serve virtual machines. I thought I would try adding SSD's for use as cache to see how much faster I can get the read speed. I also have 24GB of RAM in the machine that acts as ARC. vol0 is 6.4TB and the cache disks are 60GB SSD's. The zvol is as follows: pool: vol0 state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM vol0 ONLINE 0 0 0 c1t8d0 ONLINE 0 0 0 cache c3t5001517958D80533d0 ONLINE 0 0 0 c3t5001517959092566d0 ONLINE 0 0 0 The issue is I'm not seeing any difference with the SSD's installed. I've tried bonnie++ benchmarks and some simple dd commands to write a file then read the file. I have run benchmarks before and after adding the SSD's. I've ensured the file sizes are at least double my RAM so there is no way it can all get cached locally. Am I missing something here? When am I going to see benefits of having all that cache? Am I simply not under these circumstances? Are the benchmark programs not good for testing the effect of cache because of the the way (and what) it writes and reads?

  Read the article

• HAProxy + NodeJS gets stuck on TCP Retransmission

  - by sled

  I have a HAProxy + NodeJS + Rails Setup, I use the NodeJS Server for file upload purposes. The problem I'm facing is that if I'm uploading through haproxy to nodejs and a "TCP (Fast) Retransmission" occurs because of a lost packet the TX rate on the client drops to zero for about 5-10 secs and gets flooded with TCP Retransmissions. This does not occur if I upload to NodeJS directly (TCP Retransmission happens too but it doesn't get stuck with dozens of retransmission attempts). My test setup is a simple HTML4 FORM (method POST) with a single file input field. The NodeJS Server only reads the incoming data and does nothing else. I've tested this on multiple machines, networks, browsers, always the same issue. Here's a TCP Traffic Dump from the client while uploading a file: ..... TCP 1506 [TCP segment of a reassembled PDU] >> everything is uploading fine until: TCP 1506 [TCP Fast Retransmission] [TCP segment of a reassembled PDU] TCP 66 [TCP Dup ACK 7392#1] 63265 > http [ACK] Seq=4844161 Ack=1 Win=524280 Len=0 TSval=657047088 TSecr=79373730 TCP 1506 [TCP Retransmission] [TCP segment of a reassembled PDU] >> the last message is repeated about 50 times for >>5-10 secs<< (TX drops to 0 on client, RX drops to 0 on server) TCP 1506 [TCP segment of a reassembled PDU] >> upload continues until the next TCP Fast Retransmission and the same thing happens again The haproxy.conf (haproxy v1.4.18 stable) is the following: global log 127.0.0.1 local1 debug maxconn 4096 # Total Max Connections. This is dependent on ulimit nbproc 2 defaults log global mode http option httplog option tcplog frontend http-in bind *:80 timeout client 6000 acl is_websocket path_beg /node/ use_backend node_backend if is_websocket default_backend app_backend # Rails Server (via nginx+passenger) backend app_backend option httpclose option forwardfor timeout server 30000 timeout connect 4000 server app1 127.0.0.1:3000 # node.js backend node_backend reqrep ^([^\ ]*)\ /node/(.*) \1\ /\2 option httpclose option forwardfor timeout queue 5000 timeout server 6000 timeout connect 5000 server node1 127.0.0.1:3200 weight 1 maxconn 4096 Thanks for reading! :) Simon

  Read the article

• High Sqlservr.exe Memory Usage

  - by user18576

  I have a problem with sqlservr.exe (version 2008). It use a more memory. I checked on windows taskbar manager, sqlservr.exe usage ( Mem usage - 8GB Ram). I dont know how can I fix it.Got the following metrics of the server using Perfmon: SQLServer:Buffer Manager Buffer cache hit ratio 13 SQLServer:Buffer Manager Page lookups/sec 46026128096 SQLServer:Buffer Manager Free pages 129295 SQLServer:Buffer Manager Total pages 997309 SQLServer:Buffer Manager Target pages 1053560 SQLServer:Buffer Manager Database pages 484117 SQLServer:Buffer Manager Reserved pages 0 SQLServer:Buffer Manager Stolen pages 383897 SQLServer:Buffer Manager Lazy writes/sec 384369 SQLServer:Buffer Manager Readahead pages/sec 69315446 SQLServer:Buffer Manager Page reads/sec 71280353 SQLServer:Buffer Manager Page writes/sec 12408371 SQLServer:Buffer Manager Checkpoint pages/sec 7053801 SQLServer:Buffer Manager Page life expectancy 735262 SQLServer:General Statistics Active Temp Tables 161 SQLServer:General Statistics Temp Tables Creation Rate 3131845 SQLServer:General Statistics Logins/sec 2336011 SQLServer:General Statistics Logouts/sec 2335984 SQLServer:General Statistics User Connections 27 SQLServer:General Statistics Transactions 0 SQLServer:Access Methods Full Scans/sec 34422821 SQLServer:Access Methods Range Scans/sec 2027247756 SQLServer:Access Methods Workfiles Created/sec 49771600 SQLServer:Access Methods Worktables Created/sec 28205828 SQLServer:Access Methods Index Searches/sec 4890715219 SQLServer:Access Methods FreeSpace Scans/sec 21178928 SQLServer:Access Methods FreeSpace Page Fetches/sec 21226653 SQLServer:Access Methods Pages Allocated/sec 41483279 SQLServer:Access Methods Extents Allocated/sec 4743504 SQLServer:Access Methods Extent Deallocations/sec 4806606 SQLServer:Access Methods Page Deallocations/sec 41419137 SQLServer:Access Methods Page Splits/sec 23834799 SQLServer:Memory Manager SQL Cache Memory (KB) 29160 SQLServer:Memory Manager Target Server Memory (KB) 8428480 SQLServer:Memory Manager Total Server Memory (KB) 7978472 Some body could help me please.And I really want to know the cause for the above.

  Read the article

• Don't let the mouse wake up displays from standby

  - by progo

  I like to put my displays to powersave/standby mode when I leave the computer for a while. It would be ok if it weren't for oversensitive mouse. Sometimes the driver reads in some movement that's not visible to the naked eye (the cursor, that is) and it breaks the power save. It would wait for another 10 minutes before going back to its standby. My workaround is the following script bound to C-S-q: xlock -startCmd 'xset dpms 2 2 2' -endCmd 'xset dpms 600 1200 1300' -mode blank -echokeys -timeelapsed +usefirst By using xset I set the values to 2 seconds each before going to standby. It's not nice, anyway. Sometimes there are cool fortunes that I want to read before typing in the password. I could keep the cursor moving but it's cludgy. (By the way, xlock's option mousemotion doesn't help -- it just hides the cursor but the displays fire up nevertheless.) So the question: is there a way to make displays go standby and stay there until a keyboard key is pressed? I'm running gentoo and recent Xorg, but I hope the answer doesn't have to be distro-specific. Basically the answer can be as simple as how to enable/disable mouse within command line? It think that would do the job if DPMS doesn't know the idea.

  Read the article

• IIS 7.0 404 Custom Error Page and web.config

  - by Colin

  I am having trouble with a custom 404 error page. I have a domain running a .NET proj with it's own error handling. I have a web.config running for the domain which contains: <customErrors mode="RemoteOnly"> <error statusCode="500" redirect="/Error"/> <error statusCode="404" redirect="/404"/> </customErrors> On a sub dir of that domain I am ignoring all routes there by doing routes.IgnoreRoute("Assets/{*pathInfo}"); in the .NET proj and I want to put a custom 404 error page on that and any sub dir's of Assets. The sub dir contains static content like images, css, js etc etc. So in the Error Pages section of IIS I put a redirect to an absolute URL. The web.config for that dir looks like the following: <system.webServer> <httpErrors> <remove statusCode="404" subStatusCode="-1" /> <error statusCode="404" prefixLanguageFilePath="" path="http://mydomain.com/404" responseMode="Redirect" /> </httpErrors> </system.webServer> But I navigate to an unknown URL under that dir and yet I still see the default IIS 404 page. I am also seeing an alert in IIS that reads: You have configured detailed error messages to be returned for both local and remote requests. When this option is selected, custom error configuration is not used. Does this have anything to do with the customErrors mode="RemoteOnly" in the site web.config? I have tried to overwrite the customErrors in the sub dir web.config but nothing changes. Any help would be appreciated. Thanks.

  Read the article

• Starfield Wildcard SSL Certificate Not Trusted in All Browsers

  - by Austen Cameron

  I am at a loss as to what else I might try in order to debug this issue with a Starfield Wildcard SSL Certificate. The problem is that in certain browsers (Safari or the most-updated chrome you can get for OS X 10.5.8 for example) the certificate comes up as untrusted, even on the root domain. My server setup / background info: General LAMP setup - CentOS 6.3 - on a Godaddy VPS Starfield Technologies Wildcard SSL certificate Installed using the instructions from godaddy's support pages ssl.conf lines are basically as follows: SSLCertificateFile /path/to/cert/mysite.com.cert SSLCertificateKeyFile /path/to/cert/mysite.key SSLCertificateChainFile /path/to/cert/sf_bundle.crt Everything seemingly worked fine until the other night when I noticed the problem in OS X, I assume it's more browser version related, but have only been able to replicate it on that particular machine. What I have tried: Updating sf_bundle.crt from godaddy's cert repository and Starfield's repository versions Following This ServerFault answer from Jim Phares - changing the ChainFile line to sf_intermediate.crt from Starfield's repository Using http://www.sslshopper.com/ssl-checker.html on my url It says the domain is correctly listed on the certificate but comes up with an error that reads The certificate is not trusted in all web browsers. You may need to install an Intermediate/chain certificate to link it to a trusted root certificate. What might I try next to remedy the untrusted certificate issue? Let me know if there is any other information needed that might help debugging this issue. Thanks in advance!

  Read the article

• Qmail Patching Makes me Nervous

  - by JM4

  We have a system running CentOS 5 with Plesk 8.6 and Qmail running. Our primary domain is hosted through Media Temple. When Plesk and Qmail are hosted on a single Dedicated Virtual server, it reads the primary server IP and domain and reports that when sending emails from the system. Our pages are written in PHP so we are using the mail() function. While our email goes out to everybody, several enterprise email domains reject our email because it shows a different originating IP (our primary server IP and domain) than the domain we list in the 'from' address. This is not modifiable. Every domain we own of course does have its own IP as well underneath our primary server IP. I have seen several places online that provide a patch, specifically - which allows Domain Binding: "DomainBindings -- For servers that host multiple domains or have multiple IP addresses assigned to them, it is sometimes useful (or important) to have qmail use a specific IP address for its outgoing mail. By default, qmail uses whatever address the OS chooses for all outbound connections. With this patch, you can specify which address to use. It uses a control file similar to smtproutes to specify the outbound IP address to use, based on the sender's domain (local copy) (pyropus.ca)" Qmail Link First off I do not have netqmail installed so I'll need to find another source, but also I am completely unfamiliar with applying patches to qmail. Will I lose email services if I patch? Is it a simple apply and use process? Will my existing email accounts and data be restored after the patch? I am very, very new to unix/linux so this does make me a bit nervous but I am the only person who can make the change and it is one our company "HAS" to have. Any ideas?

  Read the article

• How to use most of memory available on MySQL

  - by Zilvinas

  I've got a MySQL server which has both InnoDB and MyISAM tables. InnoDB tablespace is quite small under 4 GB. MyISAM is big ~250 GB in total of which 50 GB is for indexes. Our server has 32 GB of RAM but it usually uses only ~8GB. Our key_buffer_size is only 2GB. But our key cache hit ratio is ~95%. I find it hard to believe.. Here's our key statistics: | Key_blocks_not_flushed | 1868 | | Key_blocks_unused | 109806 | | Key_blocks_used | 1714736 | | Key_read_requests | 19224818713 | | Key_reads | 60742294 | | Key_write_requests | 1607946768 | | Key_writes | 64788819 | key_cache_block_size is default at 1024. We have 52 GB's of index data and 2GB key cache is enough to get a 95% hit ratio. Is that possible? On the other side data set is 200GB and since MyISAM uses OS (Centos) caching I would expect it to use a lot more memory to cache accessed myisam data. But at this stage I see that key_buffer is completely used, our buffer pool size for innodb is 4gb and is also completely used that adds up to 6GB. Which means data is cached using just 1 GB? My question is how could I check where all the free memory could be used? How could I check if MyISAM hits OS cache for data reads instead of disk?

  Read the article

< Previous Page | 53 54 55 56 57 58 59 60 61 62 63 64  | Next Page >