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• How many cron jobs are too many?

  - by guitar-

  I have a couple of cron jobs for basic maintenance which aren't very resource-intensive. I also have custom task scheduling (which is just calling a .php file and passing information via GET, ie: cronjob.php?param1=param ...). These can add up pretty quickly. These just call system commands and run external programs (Nmap is one of them). They usually don't take long either. Anyway, can anyone tell me, roughly what point is too many? I know it's hard to say since it depends on what job is being run and how often, but at what point does the crontab program start "struggling"? Anyone have any idea? Thanks.

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• How Should I Print Documentation from Google Code?

  - by peter.newhook

  Google does a decent job of documenting their API (like Closure http://code.google.com/closure/compiler/docs/overview.html) but I find it hard to read because it's broken into such short pages. I like to leaf through my docs and read it on paper. Has anyone found a good way to print from the documentation on Google Code. It could be a PDF, or even just a long page with lots of content. Please note, I'm not talking about the Wikis in the Open Source side of Google Code. I'm referring to the API docs published by Google.

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• Is a masters degree overkill?

  - by Chris

  After reading the responses to Is a College/University Degree Still Relevant?, I'd then ask, once you complete a university technology degree, would pursuing a masters in the field be worth it? Or is the experience you would gain working for those two years be more valuable? Or is a masters degree something that is more valuable after one has a few years of real-world experience after their undergrad? And what career doors would a masters open, and which would they possibly close? Keeping in mind this discussion on higher pay for advanced degrees, I'd rate whether a masters is worthwhile by both the pay one would get, but also more importantly, how enjoyable the job would be, and the types available (research only? development? management?).

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• RichTextBox doesn't update caret position correctly

  - by shadeMe

  I have a handler consuming the keyDown event of a WinForms RTB, that has the following code: GetTextAtLoc(RTB->SelectionStart); // selects some text at the caret's position RTB->SelectedText = "SomeOfMyOwn"; GetTextAtLoc(RTB->SelectionStart); // selects the replacement string RTB->SelectionStart += RTB->SelectionLength - 1; While this code seems to do its job (SelectionStart/Length properties are updated correctly), the caret doesn't move to the end of the new string - It says right where it was at the time of GetTextAtLoc's first call. Redrawing the textbox does seem to have any effect either.

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• What is TombstonedTaskError from App Engine's Task Queue?

  - by dbr

  That does the TombstonedTaskError mean? It is being raised while trying to add a task to the queue, from a cron-job: Traceback (most recent call last): File "/base/python_lib/versions/1/google/appengine/ext/webapp/__init__.py", line 501, in __call__ handler.get(*groups) File "/base/data/home/apps/.../tasks.py", line 132, in get ).add(queue_name = 'userfeedcheck') File "/base/python_lib/versions/1/google/appengine/api/labs/taskqueue/taskqueue.py", line 495, in add return Queue(queue_name).add(self) File "/base/python_lib/versions/1/google/appengine/api/labs/taskqueue/taskqueue.py", line 563, in add self.__TranslateError(e) File "/base/python_lib/versions/1/google/appengine/api/labs/taskqueue/taskqueue.py", line 619, in __TranslateError raise TombstonedTaskError(error.error_detail) TombstonedTaskError Searching the documentation only has the following to say: exception TombstonedTaskError(InvalidTaskError) Task has been tombstoned. ..which isn't particularly helpful. I couldn't find anything useful in the App Engine code either..

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• Cocoa - How to copy files to /usr/share?

  - by cyaconi

  Hi all. I'm developing an "installation" like cocoa application wich needs to take care of some http request, some file system reading, copying files to /usr/share, set up cron (not launchd) and ask some information to user. I discarded PackageMaker since I need more flexibility. Currently everything is going well, but on my last installation step, I need to: Delete my previously installed application folder (if exists). It's always the same path: /usr/share/MY_APP Create again the application folder at: /usr/share/MY_APP Copy application files to /usr/share/MY_APP Update a cron job It's very important that /usr/share/MY_APP keeps protected with administrative privileges, so a regular shouldn't delete it. What would be the best approach to implement those steps? BTW, I'm using Xcode 3.2. Thanks a lot! Carlos.

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• Invoicing vs Quoting

  - by FreshCode

  If invoices can be voided, should they be used as quotations? I have an Invoices tables that is created from inventory associated with a Job. I could have a Quotes table as a halfway-house between inventory and invoices, but it feels like I would have duplicate data structures and logic just to handle an "Is this a quote?" bit. From a business perspective, quotes are different from invoices: a quote is sent prior to an undertaking and an invoice is sent once it is complete and payment is due, but how to represent this in my repository and model. What is an elegant way to store and manage quotes & invoices in a database?

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• Handling missing resources

  - by Domchi

  I've just found myself in situation where I needed to handle exception I'll probably never get, so out of curiosity, let's do a small poll. Do you validate the presence of resources in your programs? I mean, those resources which are installed with your program, like icons, images and similar. Generally, if those are missing, either your install didn't do its job, or the user randomly deleted files in your app. If you do validate the presence, what do you do when the files are not there? Of course, for web apps, you'll have nice 404 page or broken link, but what about the rest? Fail early, yes, but leave handling failures to your compiler, or what?

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• Does anyone know of a code change management tool that can highlight code changes in Visual Studio?

  - by Leejo

  Hey all, I am trying to find a tool that can highlight code changes in Visual Studio so they can be easily found and reviewed. Below are some requirements for what we are looking for... Identify and use a difference highlighting tool that meets the following criteria: • can highlight areas that need to be reviewed • there is a place to enter comments • retains line numbering from code • preference for doing within IDE Issue addressed: Hard to see what was changed in code - changes not identified. Coders do not provide administrators diffs. No tool that does a nice job to identify differences. Daunting/time consuming to provide a good diff. When highlighting differences was provided, loss of line numbers was a substantial issue (was worse).

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• similarity between strings - sql server 2005

  - by csetzkorn

  Hi, I am looking for a simple way (UDF?) to establish the similarity between strings. The SOUNDEX and DIFFERENCE function do not seem to do the job. Similarity should be based on number of characters in common (order matters). For example: Spiruroidea sp. AM-2008 and Spiruroidea gen. sp. AM-2008 should be recognised as similar. Any pointers would be very much appreciated. Thanks. Christian

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• batch update SharePoint data

  - by Faiz

  Hi, I need to import user profile information to a sharepoint list. Also, the user profile information will be periodically updated to the list , therefore i think i should use a timer job to update the information. Importing for the first time works without any issues. But can you suggest what can be the best way to update information. The update should take care of updating existing records in profile , mark as orphaned for the records that are deleted from user profile and add new records in user profile to the list. Thanks

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• Weblogic server 10.0 - Managed Server shutting down

  - by Eqbal

  We have a weblogic server 10.0 instance which has a cluster with one managed server. Every Monday at 5am (or few seconds after), it shuts down on its own. The logs do not show any errors except the following message: JVM called WLS shutdown hook. The server will force shutdown now. JVM has a -Xnohup option and using JRockit. There is no cron job on the server. I am not sure how to debug this one. Admin Server keeps running with no issues and I am able to start the managed server back up with no problems. Any help is greatly appreciated. Thanks.

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• RAD - Web Sphere 7.0 Server is not getting started

  - by Dinesh Kumar A B

  I am working in RAD 7.5.0 and using websphere 7.0 Server. When I try to start the server facing below issue. ADMU0116I: Tool information is being logged in file E:\Program Files\IBM\SDP\runtimes\base_v7\profiles\AppSrv01\logs\server1\startServer.log ADMU7701I: Because server1 is registered to run as a Windows Service, the request to start this server will be completed by starting the associated Windows Service. ADMU0116I: Tool information is being logged in file E:\Program Files\IBM\SDP\runtimes\base_v7\profiles\AppSrv01\logs\server1\startServer.log ADMU0128I: Starting tool with the AppSrv01 profile ADMU3100I: Reading configuration for server: server1 ADMU3200I: Server launched. Waiting for initialization status. ADMU3011E: Server launched but failed initialization. startServer.log, SystemOut.log(or job log in zOS) and other log files under E:\Program Files\IBM\SDP\runtimes\base_v7\profiles\AppSrv01\logs\server1 should contain failure information. ADMU7704E: Failed while trying to start the Windows Service associated with server: server1; probable error executing WASService.exe: Starting Service: gh-vdistlsv153Node02 Service failed to start. startServer return code = -1

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• how to word wrap a QTreeWidgetItem

  - by japs

  hello all, i have to populate a QTreeWidget with items (or children of items) that may happen to be too long to fit in a single line, so i'm looking for a way to word wrap them. i thought myQTreeWidget.setWordWrap(True) (done via QtDesigner4) would have done the job, but that doesn't seem to be the case. i don't konw if it is relevant, but the tree is enveloped in a splitter frame, so the wrapping should be somehow dynamic to allow resizing of the splitter. Any ideas? I use PyQt4, but hints in any language/binding would be much appreciated. have a good day all.

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• Oracle Data Pump import to a sql file error :ORA-31655 no data or metadata objects

  - by Francisco Quiñones

  Hello, I'm using Data Pump to export/import data, one requirement is to import data to a sql file. The OS is window. I made the follow export : expdp system/password directory=dpump_dir dumpfile=tablesdump.dmp content=DATA_ONLY tables=user.tablename and it works, I can see the file TABLESDUMP.DMP in the directory path. then when I tried to import it to a sql file: impdp system/password directory=dpump_dir dumpfile=tablesdump.dmp sqlfile=tables_export.sql the log show : ..... ORA-31655 no data or metadata objects selected for job ..... and the sql file is created empty in the directory path. I'm not DBA, I'm a Java developer , Can you help me? Thks

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• Sharepoint SSRS: Unexpected Error Encountered

  - by Nicholas

  We are running an intranet website hosted on Sharepoint 2007, serving reports to users via SSRS. Recently, our users are experiencing error when trying to access certain reports with the error message "An unexpected error has occurred". After trying many things, to cut a long story short we manage to temporarily solve the problem by manually running UPDATE STATISTICS on the tables in the database. However, this error will periodically crop up again and again, running UPDATE STATISTICS immediately solved it. I had suggested to run a daily job in the server to auto run UPDATE STATISTICS every few hours or so but was rejected by my team lead. Is there any other workaround for this error? Why does UPDATE STATISTICS solve the problem, I still not very understand?

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• Is there any need to get a Computer Science degree?

  - by Tom Moseley

  I've been a software developer for 20 years. i've been involved in language development and large data warehouse development. I've worked for start-ups that have gone public, and for government contractors, and I've written a published programming book. My knowledge is either self-taught or on-the-job. I've worked with some of the best and brightest, and they taught me well. I'm back in school now, and am weighing my options, deciding between a Computer Science and a business degree. My question is this. What do I gain, at this point in my career, by earning a Computer Science degree? I just don't know if a Computer Science degree, at this point, is a value-add on my resume. Edit: I'm working on completing an undergraduate degree.

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• Tools to create maximum velocity in a .NET dev team

  - by Søren Spelling Lund

  If you were to self-fund a software project which tools, frameworks, components would you employ to ensure maximum productivity for the dev team and that the "real" problem is being worked on. What I'm looking for are low friction tools which get the job done with a minimum of fuss. Tools I'd characterize as such are SVN/TortioseSVN, ReSharper, VS itself. I'm looking for frameworks which solve the problems inherient in all software projects like ORM, logging, UI frameworks/components. An example on the UI side would be ASP.NET MVC vs WebForms vs MonoRail.

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• Dynamic Jquery Accordion

  - by kwek-kwek

  How do I default an accordion to be closed on start-up. here is the sample view here Here is the code: <script> $(function() { $("#accordion").tabs("#accordion div.pane", {tabs: 'h3', effect: 'slide'}); }); </script> <script> // add new effect to the tabs $.tools.tabs.addEffect("slide", function(i, done) { // 1. upon hiding, the active pane has a ruby background color this.getPanes().slideUp("slow").css({backgroundColor: "#fff"}); // 2. after a pane is revealed, its background is set to its original color (transparent) this.getPanes().eq(i).slideDown("slow", function() { $(this).css({backgroundColor: 'transparent'}); // the supplied callback must be called after the effect has finished its job done.call(); }); }); </script>

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• To be effective on your home projects is it better using the same technologies used at work?

  - by systempuntoout

  To be more productive and effective, is it better to start developing an home project using the same technologies used at work? I'm not talking about a simple hello world web page but an home project with all bells and whistles that one day, maybe, you could sell on internet. This dilemma is often subject of flames between me and a friend. He thinks that if you want to make a great home-made project you need to use the same technologies used daily at work staying in the same scope too; for example, a c++ computer game programmer should develope an home-made c++ game. I'm pretty sure that developing using the same technologies used at work can be more productive at beginning, but surely less exciting and stimulating of working with other languages\ides\libraries out of your daily job. What's your opinion about that?

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• Sequence numbers best practice

  - by Abdullah Jibaly

  What's the best practice or well known methods to implement sequence numbers for business entities such as invoices, purchase orders, job numbers, etc? I want to be able to save the latest value in the database and be able to set it programatically. Is it OK to use a table for this purpose that has a SEQUENCE_NAME, SEQUENCE_NUMBER tuple? I know some databases have a first class sequence type but others (eg, MySQL) do not so it's not something I want to rely on. If a table is used to hold these sequences what is the right way to get and increment them in a synchronized fashion to ensure no data inconsistencies arise?

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• Joomla 1.5 Media Manager sets incorrect file permissions when uploading

  - by Scott Mayfield

  Howdy all, I have a Joomla 1.5 installation running on Windows Server 2008, installed via the Web Platform Installer. When uploading images with the media manager (native uploader, not the flash bulk uploader), the files arrive on the server correctly, but are given incorrect permissions. Specifically, the IIS_IUSRS group is not given access to the file. I might be incorrect about what group/user is SUPPOSED to get access to the files, but so far, I've found that unless I give IIS_IUSRS access to the uploaded files, they won't appear on the site or in the media manager (appear as broken images). Once I give IIS_IUSRS permission to the files, they work fine. So far, all the research I've done has led me to linux specific fixes that involve either changing the umask on the server, or directly modifying the Joomla codebase to add an appropriate chmod command to the upload process, but I really don't want to modify Joomla directly. I have to believe there's a setting here somewhere that will do the job, either on the Joomla or Windows side of the equation. Any thoughts? Scott

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• Bulkinsert from CSV into db (C#) -> max number of rows in a web application?

  - by Swoosh

  Web application - C#, .Net, SQL 2k5. I recently used bulkinsert on an other application and I thought I would like to give it a try. I am going to receive a CSV file with 1000 rows, which will most likely add 500 000 (that is five hundred thousand) records in the database. I don't have any idea yet about this huge amount if it's going to work out well. I am afraid that it will time out. I didn't do any testing yet, but I am pretty sure it would time out eventually. Is there a way to make it not time out (I don't know ... split the bulkinsert into 1000 pieces :D) or I should try to do something like BCP, with a SQL job ...

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• How to do an fetch request with expressions like this on the iPhone?

  - by dontWatchMyProfile

  The documentation has an example on how to retrieve simple values only, rather than managed objects. This remembers a lot SQL using aliases and functions to only retrieve calculated values. So, actually pretty geeky stuff. To get the minimum date from a bunch of records, this is used on the mac: NSFetchRequest *request = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Event" inManagedObjectContext:context]; [request setEntity:entity]; // Specify that the request should return dictionaries. [request setResultType:NSDictionaryResultType]; // Create an expression for the key path. NSExpression *keyPathExpression = [NSExpression expressionForKeyPath:@"creationDate"]; // Create an expression to represent the minimum value at the key path 'creationDate' NSExpression *minExpression = [NSExpression expressionForFunction:@"min:" arguments:[NSArray arrayWithObject:keyPathExpression]]; // Create an expression description using the minExpression and returning a date. NSExpressionDescription *expressionDescription = [[NSExpressionDescription alloc] init]; // The name is the key that will be used in the dictionary for the return value. [expressionDescription setName:@"minDate"]; [expressionDescription setExpression:minExpression]; [expressionDescription setExpressionResultType:NSDateAttributeType]; // Set the request's properties to fetch just the property represented by the expressions. [request setPropertiesToFetch:[NSArray arrayWithObject:expressionDescription]]; // Execute the fetch. NSError *error; NSArray *objects = [managedObjectContext executeFetchRequest:request error:&error]; if (objects == nil) { // Handle the error. } else { if ([objects count] > 0) { NSLog(@"Minimum date: %@", [[objects objectAtIndex:0] valueForKey:@"minDate"]; } } [expressionDescription release]; [request release]; Nice, I though - but having a deep look into NSExpression -expressionForFunction:arguments: it turns out that iPhone OS does NOT support the min: function. Well, probably there's a nifty way to use an own function for this kind of stuff on the iPhone as well? Because on thing I'm already worrying about is, how I'm gonna sort a table based on the calculated distance of targets on a map (location-based stuff).

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• How do I convert PDF to HTML programmatically?

  - by SoaperGEM

  Are there any classes, COM objects, command line utilities, or anything else that I can make an API for that can convert a PDF to an HTML document? Obviously the conversion might be a little rough since PDFs can contain a lot more than HTML can describe. I found a utility called pdftohtml on Source Forge, but quite honestly it does a horrible job with the conversion. I don't care if the software is free or commercial, but is there anything out there at all that I can incorporate with my own software to do this sort of conversion at least decently? I know Google's developed their own method of doing this, since you can click "View as HTML" on a PDF attached to an email through Gmail, but I was hoping there was something out available to the public. Remember, PDF to HTML. I'm NOT worried about HTML to PDF.

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