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  • Best books on Managing a Software Development Team? [closed]

    - by JohnFx
    The canonical books on software development is fairly well established. However, after reading through a dreadful book full of bad advice on managing programming teams this weekend I am looking for recommendations for really good books that focus on the management side of programming (recruiting, performance measurement/management, motivation, best practices, organizational structure, etc.) and not as much on the construction of software itself. Any suggestions?

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  • Eager to Learn more about MySQL?(Week 40)

    - by rituchhibber
    Are you a SQL programmer eager to know more?Oracle University is pleased to announce the availability of a new course in Training on Demand format : MySQL Performance Tuning.Why wait to get the training you need? Learn Oracle from Oracle today. Check out the demo to see how it works.Take a look at the new Training on Demand  MySQL Certification Packages.Please note: your OPN discount is applied to the standard price shown on the website.For more information, assistance and bookings contact your local Oracle University Service Desk.

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  • Tweaking Hudson memory usage

    - by rovarghe
    Hudson 3.1 has some performance optimizations that greatly reduces its memory footprint. Prior to this Hudson used to always hold the entire data model (all jobs and all builds) in memory which affected scalability. Some installations configured heap sizes in excess of 1GB to counteract this. Hudson 3.1.x maintains an MRU cache and only loads jobs and builds as they are required. Because of the inability to change existing APIs and be backward compatible with plugins, there were limits to how far we could go with this approach. Memory optimizations almost always come with a related cost, in this case its additional I/O that has to be performed to load data on request. On a small site that has frequent traffic, this is usually not noticeable since the MRU cache will usually hold on to all the data. A large site with infrequent traffic might experience some delays when the first request hits the server after a long gap. If you have a large heap and are able to allocate more memory, the cache settings can be adjusted to take advantage of this and even go back to pre-3.1 behavior. All the cache settings can be passed as options to the JVM container (Tomcat or the default Jetty container) using the -D option. There are two caches, independant of each other, one for Jobs and the other for Builds. For the jobs cache: hudson.jobs.cache.evict_in_seconds ( default=60 ) Seconds from last access (could be because of a servlet request or a background cron thread) a job should be purged from the cache. Set this to 0 to never purge based on time. hudson.jobs.cache.initial_capacity ( default=1024 ) Initial number of jobs the cache can accomodate. Setting this to the number of jobs you typically display on your Hudson landing page or home page will speed up consecutive access to that page. If the default is too large you may consider downsizing and using that memory for the Builds cache instead. hudson.jobs.cache.max_entries ( default=1024) Maximum number of jobs in the cache. The default is large enough for most installations, but if you find I/O activity when always accessing the hudson home page you might consider increasing this, but first verify if the I/O is caused by frequent eviction (see above), rather than by the cache not being large enough. For the builds cache: The builds cache is used to store Build objects as they are read from storage. Typically this happens when a user drills down into the details of a particular Job from the hudson hom epage. The cache is shared among builds for different jobs since in most installations all jobs are not accessed with the same frequency, so a per-job builds cache would be a waste of memory. hudson.job.builds.cache.evict_in_seconds ( default=60 ) Same as the equivalent Job cache, applied to Build. hudson.job.builds.cache.initial_capacity" ( default=512 ) Same as equivalent Job cache setting. Note the smaller initial size. If your site stores a large number of builds and has frequent access to more builds you might consider bumping this up. hudson.job.builds.cache.max_entries ( default=10240 ) The default max is large enough for most installations, the builds cache has bigger sized objects, so be careful about increasing the upper limit on this. See section on monitoring below. Sample usage: java -jar hudson-war-3.1.2-SNAPSHOT.war -Dhudson.jobs.cache.evict_in_seconds=300 \ -Dhudson.job.builds.cache.evict_in_seconds=300 Monitoring cache usage The 'jmap' tool that comes with the JDK can be used to monitor cache performance in an indirect way by looking at the number of Job and Build objects in each cache. Find the PID of the hudson instance and run $ jmap -histo:live <pid | grep 'hudson.model.*Lazy.*Key$' Here's a sample output: num #instances #bytes class name 523: 28 896 hudson.model.RunMap$LazyRunValue$Key 1200: 3 96 hudson.model.LazyTopLevelItem$Key These are the keys to the Jobs (LazyTopLevelItem$Key) and Builds (RunMap$LazyRunValue$Key) in the caches, so counting the number of keys is a good indicator of the number of items in the cache at any given moment. The size in bytes can be ignored, they are just the size of the keys, not the actual sizes of the objects they hold. Those sizes can only be obtained with a profiler. With the output above we can conclude that there are 3 jobs and 28 builds in memory. The 28 builds can all be from 1 job or all 3 jobs. Over time on an idle system, these should get evicted and memory cache should be empty. In practice, because of background cron threads and triggers, jobs rarely fall down to zero. Access of a job or a build by a cron thread resets the eviction timer.

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  • Problem with loading webpage in firefox

    - by user107735
    I'm using ubuntu 12.04 and I always keep my pc up to date. For last 4 or 5 weeks, I noticed in firefox, the page displays enough data but spinner in the tab doesn't stop. Not only that, Some page load very quickly and wheel still speaning. Some are very very slow and wheel is as always speaning. Some websites (ex. google analytics) takes more than 5 minutes to load. Some websites load but slider doesnt load and wheel is speaning (ex. blenderdesh.com) I'm facing lot of problems for this. Please help me.....

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  • Setting the SlideShowExtender's Index

    - by Bunch
    The AJAX SlideShowExtender is pretty useful. It does what it says and works without much fuss. There was one trick I needed it to perform that I could not find natively within the control. That was to set the slide’s current index. With a little JavaScript however I could make the control do what I wanted. The example below assumes a few things. First you already have a SlideShowExtender setup and working (or see this post). Second this SlideShowExtender is on a page all by itself so the index to set the slide to is passed in the URL. The scenario I had was this SSE was showing full images, the index was passed from another page that had a SSE showing thumbnails. JavaScript in <head> <script type="text/javascript">      function pageLoad() {          var slider = $find("sse");          var photoIndex = GetQuerystring('Index', 0);          slider._currentIndex = photoIndex - 1;          slider._slides = '';          slider.setCurrentImage();      }      function GetQuerystring(key, default_) {          if (default_ == null) default_ = '0';          key = key.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");          var regex = new RegExp("[\\?&]" + key + "=([^&#]*)");          var qs = regex.exec(window.location.href);          if (qs == null)              return default_;          else              return qs[1];      } </script> The GetQuerystring function is what grabs the Index value I pass from the page with the thumbnails. It does not have anything else to do with setting the slide index. The code in the pageLoad function sets the index on the slide_currentIndex line. The slider.setCurrentImage() line does pretty much what it says. I added the slider._slider = ‘’ to avoid an error (not a show stopper just a bit annoying). Control in <body> <cc1:SlideShowExtender ID="ssePhotos" runat="server" TargetControlID="imgFull" AutoPlay="false"          PreviousButtonID="btnPrev" NextButtonID="btnNext" SlideShowServicePath="PlacePhotos.asmx"           SlideShowServiceMethod="GetPlaceFullPhotos" BehaviorID="sse" ImageDescriptionLabelID="lblPictureDescription"> </cc1:SlideShowExtender> The main property to set with the SSE is the BehaviorID. This is what a JavaScript function can use to find the control rather than the control’s ID value. Technorati Tags: AJAX,ASP.Net,JavaScript

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  • Will these tool tips get me penalized?

    - by user21100
    I have a page of 10 products. Each product has a list of (7) features associated with it. If a user hovers over the name of the feature, (ex., "Moisture resistance), a tooltip description displays. The descriptions ( a sentence or two), are loaded once on the page using Javascript, but the titles are not, so I essentially have a bunch of redundant tool tip titles. I am concerned this will look like keyword stuffing to the bots. Anyone know about this? Maybe I should load the feature titles with javascript as well?

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  • What are the dis-advantages of installing the ssl certificate for the naked domain?

    - by user1744649
    I might buy an SSL certificate for my sie. I know that it will help me in many ways. But will there be dis-advantages also? eg. If I load an image from another server (using plain http), will that alert the customer saying something is wrong? Will I be able to use all existing codes like phpbb, awstats etc without a problem? Will there be any issue if redirect a page from my domain.com to my subdomain.domain.com using a meta refresh or .htaccess? Will there be any issue if redirect a page from my subdomain.domain.com to my domain.com using a meta refresh or .htaccess? Any other issue that I might get into? Thanks.

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  • Preparing for Interview: I feel like, I wanna start coding all data structures again.... Is it a right way to start?

    - by howtechstuffworks
    I started preparing for my interview. I will be graduating this May. Right now, I am doing an internship in an product based company, so I did my fair share of preparation. The thing is, whenever, I try to do something, I always think that I should start everything from page 1. It is sometimes not at all helpful.... For example, reading a programming book from page 1 is not going to helpful, as I never completed one and always stopped half way through or rushed through towards deadlines. I am facing a similar situation now. I feel like, I wanna start coding all data structures from first(I attempted and finished atleast 6-7 last fall, preparing for interview). Now I feel like, I wanna code everything from first, instead of attempting something new.... I am not quite sure, what this is, but this is the way I have been..... LOL

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  • Improving FAQ SEO with multiple pages?

    - by asdfasdf
    I have a client who has over 200 Question/Answer style content blocks. Neither the questions or answers are very long and most of them have almost the same question but with a word or two differentiating themselves from the rest of the questions. Would SEO be helped or hurt if I would to put each QA on its own page with the title of the page the question being asked etc... Or, would that be considered "farming"? If not, what would be the best way (in SEO world) do present all these QAs? Thanks for any advice..

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  • Is the use of hashbang really a good idea? [on hold]

    - by user32642
    I've been working on a WordPress site lately that was design with hashbang or shebang in the dynamically generated URLs. After doing some research, I noticed that there was some preference by Google in their use and how it crawled the site. However, after I ran several sitemap generators and Screaming Frog SEO Spider, I realized that the only page being crawled was the index page. So now I am questioning the use of hashbangs. What do you think? Should I attempt to remove them? Or will it even matter? And does anyone know of a easy way to remove this? The site is www.modernvintage1005.com

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  • What is "top new free" on GooglePlay

    - by Lumis
    On Android Market i.e. GooglePlay, there used to be a page with the latest new games. So every game had a chance to get noticed and make its way up especially if it was good. But now I see "top new free" page and no more the latest apps. I don't understand how can be "top new" Anybody knows how this works? If there are no more pages with the very latest uploaded games then the new apps will be barely seen to exist even if they are excellent, and new programmers have very little chance of getting noticed. Any good advice how to promote a new Android app these days?

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  • Firefox 17 sort avec Social API et permet d'intégrer Facebook, click-to-play et nouveautés pour les développeurs aussi au rendez-vous

    Les développeurs au centre de Firefox 17 ajout d'un panneau de balisages, révisions de la console Web, du débogueur et de l'inspecteur de page Le canal Aurora vient de recevoir la mise à jour Firefox 17, qui permet d'avoir un premier aperçu des nouvelles fonctionnalités et améliorations que le navigateur offrira. Firefox 17 met l'accent sur les outils de développement Web qui s'enrichissent d'un nouveau panneau de balisages pour l'éditeur HTML. Accessible via le raccourci clavier Alt + M (ou Ctrl + M pour les utilisateurs de Mac), ce panneau permet aux développeurs de mieux manipuler le DOM d'une page. [IMG]http://rdonfack.developpez.com/images/markup...

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  • Les développeurs au centre de Firefox 17 : ajout d'un panneau de balisages, révisions de la console Web et du débogueur

    Les développeurs au centre de Firefox 17 ajout d'un panneau de balisages, révisions de la console Web, du débogueur et de l'inspecteur de page Le canal Aurora vient de recevoir la mise à jour Firefox 17, qui permet d'avoir un premier aperçu des nouvelles fonctionnalités et améliorations que le navigateur offrira. Firefox 17 met l'accent sur les outils de développement Web qui s'enrichissent d'un nouveau panneau de balisages pour l'éditeur HTML. Accessible via le raccourci clavier Alt + M (ou Ctrl + M pour les utilisateurs de Mac), ce panneau permet aux développeurs de mieux manipuler le DOM d'une page. [IMG]http://rdonfack.developpez.com/images/markup...

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  • Space in img:s "ALT" attribute good/bad for search engines?

    - by Camran
    I am trying to make it easier for search engines to crawl my website, as it is almost 100% dynamic. I have a couple of transparent images which are actually links to sections of my page. I wonder, if I add an "alt" attribute containing space characters to explain the target, will this improve SE rankings etc? For example: <img src="blabla.png" alt="post new classified"> Or will this just result in errors? Ànd, what should I put in the alt attribute if I can't use space? PS: Another different and short question, will javascript-rich content make a page less important to crawlers? Thanks

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  • How to Get Information About Your Backups

    When you need to restore but aren't 100% sure about the contents of your backup files, what do you do? Head to the headers. Grant Fritchey explains how to find the useful bits in these huge stores of information and make sure you restore the right files. New! SQL Monitor 3.0 Red Gate's multi-server performance monitoring and alerting tool gets results from Day One.Simple to install and easy to use – download a free trial today.

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  • Oracle Solaris 11.1

    - by user12616590
    Oracle Solaris 11.1 was announced at Oracle OpenWorld recently. This release added 300 new performance and feature enhancements. My favorite new features: Solaris Zones on Shared Storage Support for 32 TB (!) of RAM Improved Oracle RAC lock latency Dynamically resize the Oracle DB SGA Industry-first support for FedFS You can learn more from the press release or by attending the Solaris 11.1 webcast on November 7.

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  • After replacing all tables in an old website with divs, what other steps should I take?

    - by guisasso
    I have designed a website a few years back, and it ranks pretty well, customer is happy, no problems there. I took one of the pages and replaced manually all the tables with divs, used structured data and got the website to look exactly the same. I would like to know, what other steps should I take to improve or at least not hurt this page's rank, or if perhaps I should juts not bother altogether. What are best practices here? The page is not live yet. Thanks.

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  • Change the output of the facebook like button [migrated]

    - by Mechaflash
    I've tied in the code for the facebook like button from the facebook dev site (I currently use the iframe version) directly into the html of a node (or content post). I want to be able to manipulate what text is sent when someone hits the like button. you can see the site and buttons here www.masteringmoneybasics.org I've tried both the iframe and html5 versions of the button and can't see where to alter what is sent. If there is no way to directly alter what is sent, does anyone know what it looks for in content to be sent so I can structure the node correctly? If you notice, when you like the page, it doesn't get the first sentence of the content, but all content after it, and I've tried putting different content in between the two lines (in its own <p>) and it still grabs the latter. Also how it figures out which image to grab from the page? Most times it doesn't take any image, however twice it's grabbed the middle school image.

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  • Is mixing 'Adsense' banners and content okay on a Pinterest style layout?

    - by Theodores
    I was under the impression that Google likes to have their adverts clearly separated out from content so that people don't accidentally click on the adverts thinking they are articles. For a 'pinterest' style layout where you only see the one page and a few pop ups over that one page, you could mix in the adverts with the content, as demonstrated with the two adverts slap in the middle on this site: Clearly this can be done and it exists in the wild, with Google adverts being supplied to the site. However, is that against the spirit and/or the letter of what one signs up to with Adsense?

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  • T-SQL: Why “It Depends”

    Why does everyone use "it depends" as an answer to many T-SQL questions? Bob Hovious brings us a short example of how performance can change based on data loads for the same code.

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  • Is server validation necessary with client-side validators?

    - by peroija
    I recently created a .net web app that used over 200 custom validators on one page. I wrote code for both ClientValidationFunction and OnServerValidate which results in a ton of repetitive code. My sql statements are parameterized, I have functions that pull data from input fields and validates them before passing to the sql statements or stored procedures. And the javascript validates the fields before the page submits. So essentially the data is clean and valid before it even hits the OnServerValidate and clean after it anyways due to the aforementioned steps. This makes me question, is OnServerValidate really needed when I validate on the clientside?

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  • In what ways can I test an image slideshow javascript code?

    - by Rahul
    I have a slideshow of images (and links) on a page. These images are part of a JSON response to a request sent after the page loads. The slideshow is set to play at an interval of 2 seconds. The slideshow can be paused, played over, and all other controls a normal slideshow would have. As a Rails dev, I proposed cucumber but the javascript guys in the team are not comfortable with ruby. I saw some cucumber for javascript libraries coming up, still in experimental stage. I checked out jasmine and related tutorials but all I could get from them is how I can carry out any internal functional testing such as credit-cart validation, etc. - which I think could actually be handled in unit testing? (Screw the research I did and) How should I go about testing this and similar components?

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  • SharePoint Scenario Framework

    - by Damon
    I've worked with SharePoint for some time now, and I like to think that I know all there is to know about it.  Deep down I know that's not true, but it's a fun delusion.  However, I found out yesterday that there is a mechanism in SharePoint called the Scenario Framework that has been around for a while but that I had no idea ever existed.  It is used to maintain state between multi-page web forms and helps manage the navigation between those pages.  If building out multiple-page forms in SharePoint is in your plans, you can find more information about the Scenario Framework on Waldek Mastykarz blog entry on the subject.

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