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• 5 years of university education vs. 5 years of work experience - Which would you pick if hiring? [closed]

  - by gablin

  Say you need to hire a programmer. You have two candidates at your table: one has studied 5 years at uni (and holds a Master's degree, of course), but has no work experience; and the other holds no university degree but has worked for 5 years. Also assume that they both know the same programming languages, have about the same personality and spend equal amount of time programming on their spare time. If you only had this information to go on, which would you pick?

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• Is Operator Overloading supported in C

  - by caramel23

  Today when I was reading about LCC(windows) compiler I find out it has the implemention for operator overloading . I'm puzzled because after a bit of googling , it has been confirm that operator overloading ain't support in standard C , but I read some people's comment mentioning LCC is ANSI-compliant . So my real question is , is LCC really standard C or it's just like objective-c , a C variant with object-oriented feature ?

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• debugging JBoss 100% CPU usage

  - by Nate

  We are using JBoss to run two of our WARs. One is our web app, the other is our web service. The web app accesses a database on another machine and makes requests to the web service. The web service makes JMS requests to other machines, aggregates the data, and returns it. At our biggest client, about once a month the JBoss Java process takes 100% of all CPUs. The machine running JBoss has 8 CPUs. Our web app is still accessible during this time, however pages take about 3 minutes to load. Restarting JBoss restores everything to normal. The database machine and all the other machines are fine, only the machine running JBoss is affected. Memory usage is normal. Network utilization is normal. There are no suspect error messages in the JBoss logs. I have set up a test environment as close as possible to the client's production environment and I've done load testing with as much as 2x the number of concurrent users. I have not gotten my test environment to replicate the problem. Where do we go from here? How can we narrow down the problem? Currently the only plan we have is to wait until the problem occurs in production on its own, then do some debugging to determine the cause. So far people have just restarted JBoss when the problem occurred to minimize down time. Next time it happens they will get a developer to take a look. The question is, next time it happens, what can be done to determine the cause? We could setup a separate JBoss instance on the same box and install the web app separately from the web service. This way when the problem next occurs we will know which WAR has the problem (assuming it is our code). This doesn't narrow it down much though. Should I enable JMX remote? This way the next time the problem occurs I can connect with VisualVM and see which threads are taking the CPU and what the hell they are doing. However, is there a significant down side to enabling JMX remote in a production environment? Is there another way to see what threads are eating the CPU and to get a stacktrace to see what they are doing? Any other ideas? Thanks!

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• JumpStart your implementation with Oracle User Productivity Kit pre-built content!

  Project teams are faced with tight deadlines for enterprise application implementations or upgrades. Learn how organizations can reduce their time to deployment by using pre-built content for Oracle User Productivity Kit. When organizations use this content for baseline system transaction flows early in a project, they can then simply modify and update the content as the application evolves to create user acceptance test scripts, transaction recordings, job aids, classroom training, online training, and support materials post-go-live. The value of pre-built content dramatically reduces time to deployment and overall implementation costs.

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• The Need For Ongoing SEO

  While you've probably heard SEO compared to an investment, often the time and resources you're putting in to your SEO campaign get diluted over time. Without fresh links pointing to your site, most often your website will continue to fall in search results. Here are some of the reasons you'll need to continue SEO efforts to stay competitive.

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• Make Friends For Life In Free Chat Rooms

  Are you bored and lonely? Are you looking out for real friends? Log on to free chat rooms to forge genuine relationships online. Make friends for life. Find friends in fun online chat rooms. It is on... [Author: Adeline Collens - Computers and Internet - April 16, 2010]

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• Result of the "How long do you wait before Solaris 11 gets on your prod systems?"

  - by nospam(at)example.com (Joerg Moellenkamp)

  I just removed the poll at 10:52, so this is the final result: My conclusions out of it: While the removal of UltraSPARC I to VI+ support in Solaris 11 may hit some of the people voting in the categories "Wait?" to "6 month", most of the users keep Solaris 10 running on their existing system anyway or migrate that late that even the newest system have reached their end-of-service-live or are near of it, so a migration doesn't sound that feasible. So i assume Product Management was right with their decision to remove the support in order to make the feature i can't talk of possible, as i don't think that many of the early migrators are still using the system in question, as most systems have reached EOSL. Didn't thought that there would be people waiting three years and more ...

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• Total Solar Eclipse 13/November/2012 - update

  - by TATWORTH

  Panasonic Eclipse Live will start their broadcast at 18:30 UT tonight at https://www.facebook.com/PanasonicEclipseLive/app_435671416492320Alternative URLs are http://www.ustream.tv/channel/panasonic-eclipse-live-by-solar-power-1 and http://www.ustream.tv/channel/panasonic-eclipse-live-by-solar-power-2/collection/744e86aa753e(The start time is 04:30 by local Australian time and will be the 14/November for them.)

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• Reminder: Java EE 7 Job Task Analysis Survey – Participants Needed

  - by Brandye Barrington

  Java EE Developers/Practitioners, Recruiters, Managers Hiring Java EE Developers: Our Survey Continues.  We're looking to you to directly help shape the scope and definition of two new Java EE 7 Certification exams. We'll soon begin certifying front-end and/or server-side enterprise developers who use Java. We're therefore interested in those of you who:  are currently working with Java EE 7 technology or have plans to develop with Java EE 7 in the near future. have 2-4 years experience with the previous Java EE technology versions. are recruiting and/or hiring candidates to develop Java EE 7 applications. are technically savvy and able to articulate the skills and knowledge required to successfully staff Java Enterprise Edition front-end and server-side projects.

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• Why is my concurrency capacity so low for my web app on a LAMP EC2 instance?

  - by AMF

  I come from a web developer background and have been humming along building my PHP app, using the CakePHP framework. The problem arose when I began the ab (Apache Bench) testing on the Amazon EC2 instance in which the app resides. I'm getting pretty horrendous average page load times, even though I'm running a c1.medium instance (2 cores, 2GB RAM), and I think I'm doing everything right. I would run: ab -n 200 -c 20 http://localhost/heavy-but-view-cached-page.php Here are the results: Concurrency Level: 20 Time taken for tests: 48.197 seconds Complete requests: 200 Failed requests: 0 Write errors: 0 Total transferred: 392111200 bytes HTML transferred: 392047600 bytes Requests per second: 4.15 [#/sec] (mean) Time per request: 4819.723 [ms] (mean) Time per request: 240.986 [ms] (mean, across all concurrent requests) Transfer rate: 7944.88 [Kbytes/sec] received While the ab test is running, I run VMStat, which shows that Swap stays at 0, CPU is constantly at 80-100% (although I'm not sure I can trust this on a VM), RAM utilization ramps up to about 1.6G (leaving 400M free). Load goes up to about 8 and site slows to a crawl. Here's what I think I'm doing right on the code side: In Chrome browser uncached pages typically load in 800-1000ms, and cached pages load in 300-500ms. Not stunning, but not terrible either. Thanks to view caching, there might be at most one DB query per page-load to write session data. So we can rule out a DB bottleneck. I have APC on. I am using Memcached to serve the view cache and other site caches. xhprof code profiler shows that cached pages take up 10MB-40MB in memory and 100ms - 1000ms in wall time. Pages that would be the worst offenders would look something like this in xhprof: Total Incl. Wall Time (microsec): 330,143 microsecs Total Incl. CPU (microsecs): 320,019 microsecs Total Incl. MemUse (bytes): 36,786,192 bytes Total Incl. PeakMemUse (bytes): 46,667,008 bytes Number of Function Calls: 5,195 My Apache config: KeepAlive On MaxKeepAliveRequests 100 KeepAliveTimeout 3 <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 120 MaxRequestsPerChild 1000 </IfModule> Is there something wrong with the server? Some gotcha with the EC2? Or is it my code? Some obvious setting I should look into? Too many DNS lookups? What am I missing? I really want to get to 1,000 concurrency capacity, but at this rate, it ain't gonna happen.

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• How do I prevent Ubuntu gradually slowing down to a stop?

  - by user29165

  I really do not know what is causing the problem of my desktop environment (D.E.) gradually slowing down. It seems to happen in Gnome 3.2, LXDE, XFCE, and KDE. I am running Ubuntu 11.10 and this problem started happening from a fresh install. I have noticed that if I restart Gnome or otherwise re-log-in with any of the D.E.s the speed resets to normal. I don't seem to have and memory leaks that account for it and there are not any processes that are using excessive CPU cycles. Due to the symptoms I am guessing that there is an underlying package that interacts with all D.E.s that is the source of the problem. Just to clarify, in extreme situations, if I let the slowdown continue without a restart of the D.E. my system will finally get to a point where everything, even my clock, freezes. The time over which Gnome slows down (noticeably after 17 hrs) is much less than LXDE, or XFCE but eventually they freeze as well. I didn't mention Unity since I haven't used it enough to verify the problem, but I don't see why it should be different. Just in case this is relevant, I Suspend my computer rather than turn it off. I do this because of the greatly reduced load time and the 17 hrs I stated above is actual up-time, not time where the D.E. is actually active. However, the slow down does not seem to be affected by how long the computer has been in suspend mode. I know that it is possible that this problem is due to an interaction between two or more of the applications that I use and as such it may not be able to be duplicated by others. In the end I am just wondering (a) are other people experiencing this issue and (b) does anyone have some advice on where to start looking for a solution if one is not already known. I am even open to the idea of switching to the beta release of 12.04 if anyone thinks it will solve the problem. Edit: I took a video of my latest freeze that you can watch at http://youtu.be/flKUqUzCmdE, sorry about the audio. Edit: Since that video I checked my memory for errors and tried installing the proprietary video drivers. No memory errors were found and the proprietary video drivers made the display unusable so I had to uninstall them. Any thoughts?

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• 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.

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• Should I charge for travel expenses as a contractor?

  - by Keith

  Here's a question for all my fellow contractors - I'm paid quite handsomely for my normal contracted hours (any overtime is billed at the same rate) but do you think it fair to bill for travel time to the other end of the country (regional office) when this takes place outside of the normal working day (or overlapping into the evening) as well as actual time holed up in a hotel room when you get there, ready for a normal working day the next day, along with the return journey? Petrol is claimed normally (nominal rate) and hotel is covered by the company I contract for.

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• How to stop Office 2010 changing " and ' to smart quotes

  - by fatherjack

  I have recently upgraded to Office 2010 at work and there are a few things that are a real problem for me. As a T-SQL developer and SQL Server DBA I copy and paste code to and from various applications and if Word gets involved it can has disastrous consequences. There is an option that appears to be defaulted to "on" that changes a straight quote to what Word describes as a smart quote - see the image below. Note - the single quote suffers from the same effect. Now, getting to the point that...(read more)

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• Should subcontractors be paid for a lunch hour and breaks? [closed]

  - by Richard DesLonde

  I have never charged my clients for lunch-time or breaks, and I have never paid a subcontractor for it before either (at least not to my knowledge). My view has always been that subcontracting has many positives (higher pay, autonomy, etc.) and many negatives (no benefits, etc.) and one of the negatives is you get paid for productive time, which does not include lunch or breaks. But I still wonder, should subcontractors be paid like employees, for lunch breaks, coffee breaks etc.?

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• Stairway to SQL Server Agent: Step 1: Setup and Overview

  SQL Server Agent is a Microsoft Windows service that allows a DBA to automate administrative tasks. SQL Server Agent can run jobs, monitor SQL Server, and process alerts. The SQL Server Agent service must be running before any jobs scheduled to execute automatically can be run Free trial of SQL Backup™“SQL Backup was able to cut down my backup time significantly AND achieved a 90% compression at the same time!” Joe Cheng. Download a free trial now.

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• Partner Milestones

  - by Kristin Rose

  Ahhh the joys of success especially during graduation time…It’s the same joy we feel when one of our partners reaches an Oracle milestone. After all, we want to help partners gain maximum exposure for their hard work and achievements. How you ask? Through streamlined press releases and social media exposure of course! So whether you just completed a Specialization or an Oracle Exastack program achievement, we want to help you share that news  both near and far. Be sure to check out the key PR assets that are available to you, which include: Easy to follow guidelines to help you create and promote your OPN successes – as well as how to submit your press release to Oracle for review OPN press release templates to help develop your announcements OPN’s social media outlets where you can further promote and share your news Contact information for your global Oracle Partner PR representatives Take advantage of these invaluable resources and “Go Get ‘Em,”The OPN Communications Team

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• The Benefits of Using Ongoing Search Engine Optimization Services

  Many new clients of search engine optimization companies are unsure if they should opt for one-time search engine optimization services or ongoing services. One-time SEO services are appropriate for new websites for several reasons. Once you do the initial optimization of a new website, you have to wait a while in order to receive data that will help you determine the direction in which you need to optimize the site. A period of six months or so will give you enough data to determine what will and won't work for the site.

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• How can I use cron-apt to download and install updates between midnight and 5am?

  - by rudivonstaden

  I have capped data which is essentially free between midnight and 5am. As a result, I would like to set Ubuntu to automatically download updates over that time. It seems that cron-apt is what I need, but the documentation and syntax is sketchy and unintuitive. Can anyone tell me how to use it to schedule downloads? It can install the updates at the same time as far as I'm concerned, but that's not such a big issue - I can run those at a later stage.

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• How can I convince a project manager that there is no way to solve all the compatibility issues?

  - by SAFAD

  I have been working on this project for more than a year now, and we are close to release, the project manager wants the product to be perfect and working in every single aspect. I like that and I love working under the perfection idea, but it seems he is delaying the launch too much because of compatibility issues, he wants the product to work in every single installation, every single configuration possible, and in most cases, the product just works without issues when it's on the hands of the client. UPDATE : yes the product doesn't work properly when there are conflicts, for example, other products that don't use guidelines nor standards to load libraries (causes double library load which leads to failure), cache is another example and so on..... but we warn the clients about the conflict before purchasing and help them fixing it after purchasing I've tried to explain it by giving some examples on major products, he understands the situation, but can not believe that it is near impossible (if it is not impossible) to do what he wants. Hope it is clarified enough for the community to answer.

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• Google Thoughts on Website Speed

  Improving website efficiency and speeding up response time, has become increasingly important to search engines, a majority of Internet users; and in-turn, website operators. A quick website response time, to generated requests, has been proven to encourage satisfied Internet visitors; and reduce website operating costs.

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• Free Access to Resharper Training

  - by TATWORTH

  There is free access to ReSharper training at http://www.pluralsight-training.net/microsoft/OLT/Course/Toc.aspx?n=resharperfundamentals Starting Tuesday, March 15, 16:00 GMT, Pluralsight provides 48 hours of free access to the full ReSharper course. If you're interested to know what ReSharper can bring to the table for .NET developers, now is just the right time to enjoy this limited-time free access opportunity, with no registration required.

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• Preventing Problems in SQL Server

  It is never a good idea to let your users be the ones to tell you of database server outages. It is far better to be able to spot potential problems by being alerted for the most relevant conditions on your servers at the best threshold. This will take time and patience, but the reward will be an alerting system which allows you to deal more effectively with issues before they involve system down-time

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• How to map TFS to two local directories

  - by Buh Buh

  I am working with a web application, using TFS. Every time I build the site it takes an unproductivly long time to start up again. I would like to have a second mapping of the site on my c drive, where I would only get latest and build once a day, so this version would always be fast. This would be like a "readonly" directory as I wouldn't personally make any edits to it. Please let me know if this possible, or if you have any alternative.

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• After power manager reinstall

  - by tuxi

  I had checking battery state hanging I solved it with the help of an answer from this site: sudo apt-get --reinstall install gnome-power-manager But now my left windows bar is rigid, it does not disappear on wide screen. EDIT Also in most of applications, characters are white. What could be the problem? and what should I do? 2ND EDIT My ubuntu is 12.04 LTS. I was trying to install some packages for dependencies of allegro game development library, one of the packages was libwxgtk2.8-0, after that a red cross appeared near user name and clock. Then computer became frozen and i had to remove my battery. I know it is a very bad thing. Then when i try to restart my computer, it could not start, it was waiting on black screen with line: Checking battery state... Then i run the above command. Computer could start but characters are white.

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