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• What's the best way to install the GD graphics library for Nagios?

  - by user1196

  While trying to install Nagios 3.2.3, I ran their ./configure script and got these errors: checking for main in -liconv... no checking for gdImagePng in -lgd (order 1)... no checking for gdImagePng in -lgd (order 2)... no checking for gdImagePng in -lgd (order 3)... no checking for gdImagePng in -lgd (order 4)... no *** GD, PNG, and/or JPEG libraries could not be located... ********* Boutell's GD library is required to compile the statusmap, trends and histogram CGIs. Get it from http://www.boutell.com/gd/, compile it, and use the --with-gd-lib and --with-gd-inc arguments to specify the locations of the GD library and include files. NOTE: In addition to the gd-devel library, you'll also need to make sure you have the png-devel and jpeg-devel libraries installed on your system. NOTE: After you install the necessary libraries on your system: 1. Make sure /etc/ld.so.conf has an entry for the directory in which the GD, PNG, and JPEG libraries are installed. 2. Run 'ldconfig' to update the run-time linker options. 3. Run 'make clean' in the Nagios distribution to clean out any old references to your previous compile. 4. Rerun the configure script. NOTE: If you can't get the configure script to recognize the GD libs on your system, get over it and move on to other things. The CGIs that use the GD libs are just a small part of the entire Nagios package. Get everything else working first and then revisit the problem. Make sure to check the nagios-users mailing list archives for possible solutions to GD library problems when you resume your troubleshooting. ******************************************************************** Which package do I want? libgd2-xpm-dev? libgd2-noxpm-dev? php5-gd? I'm not looking to do any image processing myself - I just want to get Nagios working.

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• Specs, Form and Function – What am I Missing?

  - by Barry Shulam

  0 0 1 628 3586 08041 29 8 4206 14.0 Normal 0 false false false EN-US JA X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:Cambria; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin;} Friday October 26th the Microsoft Surface RT arrived at the office.  I was summoned to my boss’s office for the grand unpacking.  If I had planned ahead I could have used my iPhone 4 to film the event and post it on YouTube however the desire to hold the device and turn it ON was more inviting than becoming a proxy reviewer for Engadget’s website.  1980 was the first time we had a personal computer in our house.  It was a  Kaypro computer. It weighed 29 pounds more than any persons lap could hold.  Then the term “portable computer” meant you could remove it from the building and take it else where.  Today I am typing on this entry on a Macbook Air which weighs 2.38 pounds. This morning Amazons front page main title is: “Much More for Much Less” I was born at the right time to start with the CPM operating system on the Kaypro thru the DOS, Windows, Linux, Mac OSX and mobile phone operating systems and languages.  If you are not aware Technology is moving at a rapid pace.  The New iPad (those who are keeping score – iPad4) is replacing a 7 month old machine the New iPad (iPad 3) I have used and owned many technology devices in my life.  The main point that most of the reader who are in the USA overlook is the fact that we are in the USA.  The devices we purchase have a great digital garden to support them.  The Kaypro computer had a 7-inch screen.  It was a TV tube with two colors – Black and Green.  You could see the 80-column screen flicker with characters – have you every played Pac-Man emulated on the screen with the ABC characters. Traveling across the world you will find that not all apps on your device will function as they did back home because they are not offered outside of your country of origin. I think the main question a buyer of technology should be asking is Function.  The greatest Specs with out function limit you.  The most beautiful form with out function is the same as a crystal vase on your shelf – not a good cereal bowl in the morning. Microsoft Surface RT, Amazon Kindle Fire and Apple iPad all great devices in their respective customers hands. My advice for those looking to purchase on this year:  If the device is your only technology device you buy what you WANT and LIKE. Consider this parallel universe if its not your only device?  Ever go shopping for clothing, shoes, and accessories with your wife, girlfriend, sister or mother?  If you listen carefully you will hear the little voices coming out of there heads saying:  “This goes well with that and I can use it also with that outfit” ”Do you think this clashes with that?”  “Ohh I love how that combination looks on you”.  Portable devices such as tablets and computers can offer a whole lot more when they are combined with the digital echo system you have at home and the manufacturer offers online. Pros of each Device: Microsoft Surface RT: There is a new functionality named SmartGlass which will let you share the content off your tablet to your XBOX 360.  Microsoft office is loaded on the tablet.  You can have more than one user profile on the tablet if you share it with others.   Amazon Kindle or Kindle HD: If you are an Amazon consumer with an annual Amazon Prime service you can consume videos and read books off the Amazon site.  Its the cheapest device.  Its a step up from the kindle reader in many ways.   Apple Ipad or Ipad mini: Over 270 Thousand applications.  Airplay permits you the ability to share to your TV screen. If you are a cord cutter (a person who gets their entertainment content over the web or air vs Cable Providers) the Airplay or Smart glass are a huge bonus.  iPad mini or not: The mini will fit in a purse where the larger one will not.  Its lighter which makes it nice to hold for prolonged periods.  It has an option for LTE wireless which non of the other sub 9 inch tables offer.  The screen is non retina which means the applications are smaller.  Speaking with individuals who are above 50 in age that wear glasses they retina does not make a difference for them however they prefer the larger iPad over the new mini.   Happy Shopping this Channuka Season.   The Kosher Coder.   Follow me on twitter @KosherCoder

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• Media server...serving files...............for a limited time only

  - by Craig

  I’m new to Ubuntu and am seeking help with a media server I have built. I have a couple of HTPCs in my house running XBMC. I wanted to build one for the family room working double duty as a HTPC, and media server to share movies, TV shows, music, etc. on my Windows network. So using some spare old parts I had lying around I decided to go CRAZY and build my first Linux box. I used Ubuntu because it seemed to be the most user friendly variant, especially for people that are new to Linux. I had to do a few things to get the media files shared properly on my network: Made sure my two media drives auto-mount every time I boot the computer by editing the “fstab” file – “sudo nano /etc/fstab” Installed Samba - “sudo apt-get install samba” Set a password for Samba - “sudo smbpasswd –a USERNAME” Edited the Samba configuration file to make sure the computer was in my networks workgroup – “sudo nano /etc/samba/smb.conf” In the file manager (not sure if that’s the right name for it), I right-clicked my media folders and set the sharing and permissions. The sharing was done without guest access, and permissions were set to; Owner, Group, and Others - Access: Create and Delete Files. Adjusted the Power Management settings to never put the system into sleep mode. I checked to see if I had access to the files from a Windows 7 machine and I did (Woo Hoo!). But when I tried to play any of my video files from the Windows machine (using VLC media player), they would only play for about 2-5 minutes and then they would stop with an error message saying that the file could not be accessed (Booo...). I tried playing some files through XBMC running in Windows and they worked for a bit longer (about 10-15mins), but they also stopped playing. I installed the Linux version of XBMC on the server and played the files locally with no problems. It doesn’t seem to be an issue with the files themselves, it seems to be a sharing problem on my network. So my question to the Ubuntu gurus out there is: Did I miss adding/editing something in the Samba configuration file? Did I use the right method to share my media files (file manager vs. using the terminal)? Is it possible for the computer to still go to sleep without the screen going black (does that even make sense?). Are there any special settings in Ubuntu that I should be using since this computer as a media server (is there a media server mode?...!...?). Any help on this matter would be greatly appreciated. Thanks

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• Your interesting code tricks/ conventions? [closed]

  - by Paul

  What interesting conventions, rules, tricks do you use in your code? Preferably some that are not so popular so that the rest of us would find them as novelties. :) Here's some of mine... Input and output parameters This applies to C++ and other languages that have both references and pointers. This is the convention: input parameters are always passed by value or const reference; output parameters are always passed by pointer. This way I'm able to see at a glance, directly from the function call, what parameters might get modified by the function: Inspiration: Old C code int a = 6, b = 7, sum = 0; calculateSum(a, b, &sum); Ordering of headers My typical source file begins like this (see code below). The reason I put the matching header first is because, in case that header is not self-sufficient (I forgot to include some necessary library, or forgot to forward declare some type or function), a compiler error will occur. // Matching header #include "example.h" // Standard libraries #include <string> ... Setter functions Sometimes I find that I need to set multiple properties of an object all at once (like when I just constructed it and I need to initialize it). To reduce the amount of typing and, in some cases, improve readability, I decided to make my setters chainable: Inspiration: Builder pattern class Employee { public: Employee& name(const std::string& name); Employee& salary(double salary); private: std::string name_; double salary_; }; Employee bob; bob.name("William Smith").salary(500.00); Maybe in this particular case it could have been just as well done in the constructor. But for Real WorldTM applications, classes would have lots more fields that should be set to appropriate values and it becomes unmaintainable to do it in the constructor. So what about you? What personal tips and tricks would you like to share?

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• How Microsoft Market DotNet?

  - by Fendy

  I just read an Joel's article about Microsoft's breaking change (non-backwards compatibility) with dot net's introduction. It is interesting and explicitly reflected the condition during that time. But now almost 10 years has passed. The breaking change It is mainly on how bad is Microsoft introducing non-backwards compatibility development tools, such as dot net, instead of improving the already-widely used asp classic or VB6. As much have known, dot net is not natively embedded in windows XP (yes in vista or 7), so in order to use the .net apps, you need to install the .net framework of over 300mb (it's big that day). However, as we see that nowadays many business use .net as their main development tools, with asp.net or mvc as their web-based applications. C# nowadays be one of tops programming languages (the most questions in stackoverflow). The more interesing part is, win32api still alive even there is newer technology out there (and still widely used). Imagine if microsoft does not introduce the breaking change, there will many corporates still uses asp classic or vb-based applications (there still is, but not that much). There are many corporates use additional services such as azure or sharepoint (beside how expensive is it). Please note that I also know there are many flagships applications (maybe adobe's and blizzard's) still use C-based or older language and not porting to newer high-level language. The question How can Microsoft persuade the users to migrate their old applications into dot net? As we have known it is very hard and give no immediate value when rewrite the applications (netscape story), and it is very risky. I am more interested in Microsoft's way and not opinion such as "because dot net is OOP, or dot net is dll-embedable, etc". This question may be constructive, as the technology is vastly changes over times lately. As we can see, Microsoft changes Asp.Net webform to MVC, winform is legacy now, it is starting to change to use windows store rather than basic-installment, touchscreen and later on we will have see-through applications such as google class. And that will be breaking changes. We will need to account portability as an issue nowadays. We will need other than just mere technology choice, but also migration plans. Even maybe as critical as we might need multiplatform language compiler, as approached by Joel's Wasabi. (hey, I read his articles too much!)

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• PPTP VPN connects via NM but goes down during SSH connection

  - by Andrea Olivato

  I setup a VPN PPTP connection via network manager and it connects correctly (I see the lock near the notification icon and the message "Vpn connection has been successfully...") As soon as I try to perform any SSH connection via the established tunnel the connection itself goes down with the message "Vpn connection failed". the SSH connection always fails at debug1: SSH2_MSG_KEXINIT sent I've looked into the system logs and this is the log Dec 12 12:25:00 ushuaia NetworkManager[1155]: <info> Starting VPN service 'pptp'... Dec 12 12:25:00 ushuaia NetworkManager[1155]: <info> VPN service 'pptp' started (org.freedesktop.NetworkManager.pptp), PID 7093 Dec 12 12:25:00 ushuaia NetworkManager[1155]: <info> VPN service 'pptp' appeared; activating connections Dec 12 12:25:00 ushuaia NetworkManager[1155]: <info> VPN plugin state changed: init (1) Dec 12 12:25:00 ushuaia NetworkManager[1155]: <info> VPN plugin state changed: starting (3) Dec 12 12:25:00 ushuaia NetworkManager[1155]: <info> VPN connection 'Redation' (Connect) reply received. Dec 12 12:25:05 ushuaia NetworkManager[1155]: <info> VPN connection 'Redation' (IP4 Config Get) reply received from old-style plugin. Dec 12 12:25:05 ushuaia NetworkManager[1155]: <info> VPN Gateway: 5.98.141.210 Dec 12 12:25:06 ushuaia NetworkManager[1155]: <info> VPN connection 'Redation' (IP Config Get) complete. Dec 12 12:25:06 ushuaia NetworkManager[1155]: <info> VPN plugin state changed: started (4) Dec 12 12:25:14 ushuaia NetworkManager[1155]: <info> VPN plugin state changed: stopping (5) Dec 12 12:25:14 ushuaia NetworkManager[1155]: <info> VPN plugin state changed: stopped (6) Dec 12 12:25:14 ushuaia NetworkManager[1155]: <info> VPN plugin state change reason: 0 Dec 12 12:25:15 ushuaia NetworkManager[1155]: <warn> error disconnecting VPN: Could not process the request because no VPN connection was active. Dec 12 12:25:20 ushuaia NetworkManager[1155]: <info> VPN service 'pptp' disappeared Please note that the same vpn is configured on my colleagues Windows 7 and works without problem when they use putty to connect via SSH

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• How to get tens of millions of pages indexed by Google bot?

  - by Chris Adragna

  We are currently developing a site that currently has 8 million unique pages that will grow to about 20 million right away, and eventually to about 50 million or more. Before you criticize... Yes, it provides unique, useful content. We continually process raw data from public records and by doing some data scrubbing, entity rollups, and relationship mapping, we've been able to generate quality content, developing a site that's quite useful and also unique, in part due to the breadth of the data. It's PR is 0 (new domain, no links), and we're getting spidered at a rate of about 500 pages per day, putting us at about 30,000 pages indexed thus far. At this rate, it would take over 400 years to index all of our data. I have two questions: Is the rate of the indexing directly correlated to PR, and by that I mean is it correlated enough that by purchasing an old domain with good PR will get us to a workable indexing rate (in the neighborhood of 100,000 pages per day). Are there any SEO consultants who specialize in aiding the indexing process itself. We're otherwise doing very well with SEO, on-page especially, besides, the competition for our "long-tail" keyword phrases is pretty low, so our success hinges mostly on the number of pages indexed. Our main competitor has achieved approx 20MM pages indexed in just over one year's time, along with an Alexa 2000-ish ranking. Noteworthy qualities we have in place: page download speed is pretty good (250-500 ms) no errors (no 404 or 500 errors when getting spidered) we use Google webmaster tools and login daily friendly URLs in place I'm afraid to submit sitemaps. Some SEO community postings suggest a new site with millions of pages and no PR is suspicious. There is a Google video of Matt Cutts speaking of a staged on-boarding of large sites, too, in order to avoid increased scrutiny (at approx 2:30 in the video). Clickable site links deliver all pages, no more than four pages deep and typically no more than 250(-ish) internal links on a page. Anchor text for internal links is logical and adds relevance hierarchically to the data on the detail pages. We had previously set the crawl rate to the highest on webmaster tools (only about a page every two seconds, max). I recently turned it back to "let Google decide" which is what is advised.

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• Microsoft Virtual Academy

  Carpe Diem It's been since a while that I could write an article for this blog but alas, I was (and still am) very busy with customer's work. Which is actually good. So, what is this article going to tell you? Well, in general, just what I already tweeted, that life is constant process of learning - especially as software craftsman. Due to an upcoming new customer project in ASP.NET I had to seize the opportunity to get my head deeper into latest available technologies, like Windows Azure and SQL Azure. I know... cloud computing and so on is not a recent development and already available since quite a while but I never any means to get myself into this since roughly two weeks ago. Microsoft Virtual Academy I can't remember exactly what guided me towards the Microsoft Virtual Academy (MVA), oh wait... Yes, it was a posting on Facebook from an old CLIP community friend. He posted a shortened URL with #MVA tag that caught my attention. Thanks for that Thomas Kuberek. After the usual sign in or registration via Live ID I was a little bit surprised that Mauritius is not an available country option... Quick mail exchange with the MVA Decan, and yeah, apologies for the missing entry. So, currently I'm learning about Microsoft products and services, and collecting points under "Not Listed Country" until Mauritius is going to be added. Hopefully soon, as MVA honors your effort with different knowledge ranks that are compared to other students with public profiles. I think it's a nice move to add some game and competition factor into the learning game. The tracks and their different modules are mainly references to publicly available material online, namely on either MSDN, TechNet, Channel9, or other Microsoft based sites. The course material therefore also varies in different media and formats, ranging from simple online articles over downloadable documents (.docx or .pdf) to Silverlight / Windows Media streams with download options. Self-assessment and students ranking Each module in a track can be finished by taking part in a self-assessment. Up to now, the assessment I did (and passed) were limited to 10 minutes available time, and consisted of six to seven questions on the module training material. Nothing too serious but it gives you a glimpse idea how Microsoft certification exams are structured. Conclusion Nothing really new but nicely gathered, assembled and presented to the MVA students. At the moment, I wouldn't dare to compare the richness and quality of those courses with professional training offers, like Pluralsight .NET Training, LearnDevNow, VTC, etc. at all, but I think that MVA has potential. Give it a try, and let me know about your opinions.

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• EPM 11.1.2.2.000 release - considerations

  - by THE

  (guest Article by Nancy) Please be aware with the upcoming release of EPM v11.1.2.2.000, it is highly recommended you first read the"ORACLE® ENTERPRISE PERFORMANCE MANAGEMENT SYSTEM 11.1.2.2.000 Readme" prior to installing this release. We want to highlight the "Installation Information" section which includes the following late-breaking information: Business Rules Migration to Calculation Manager Oracle Hyperion Calculation Manager has replaced Oracle Hyperion Business Rules as the mechanism for designing and managing business rules, therefore, Business Rules is no longer released with EPM System Release 11.1.2.2. If you are applying 11.1.2.2 as a maintenance release, or upgrading to Release 11.1.2.2, and have been using Business Rules in an earlier release, you must migrate to Calculation Manager rules in Release 11.1.2.2. (See Oracle Enterprise Performance Management System Installation and Configuration Guide.) Planning User Interface Enhancements This release of Planning includes a large number of user interface enhancements, as described in Oracle Hyperion Planning New Features. To optimize performance with these new features, you must implement the following recommended configuration. Server: 64-bit, 16 GB physical RAM Client: Optimized for Internet Explorer 9 and Firefox 10 or higher Client-to-Server Connectivity: High-speed internet connection or VPN connection between client and server, client-to-server ping time < 150 milliseconds for best performance The new, improved Planning user interface requires efficient browsers to handle interactivity provided through Web 2.0 like functionality. In our testing, Internet Explorer 7, Internet Explorer 8, and Firefox 3.x are not sufficient to handle such interactivity, and the responsiveness in these versions of browsers is not as fast as the user interface in the previous releases of Planning. For this reason, we strongly recommend that you upgrade your browser to Internet Explorer 9 or Firefox 10 to get responsiveness similar to what you experienced in previous releases. In some instances, the response times in Internet Explorer 7, Internet Explorer 8 and Firefox 3.x could be acceptable. Hence, we suggest that you uptake the new user interface only after you conduct an end user response test and you are satisfied with the results of these tests for these versions of browsers. Please note that it is still possible to leverage the old user interface and features from Planning Release 11.1.2.1. (For more information, see “Using the Planning Release 11.1.2.1 User Interface and Features” in the Oracle Hyperion Planning Administrator's Guide.) IBM HTTP Server and IIS Default Ports Both IBM HTTP Server and IIS Web Server use 80 as their default port. If you are using WebSphere, you must change one of these defaults so that there is no port conflict. If you have further questions, please utilize the  Planning or Essbase MOS Community.

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• Interconnect nodes in a Java distributed infrastructure for tweet processing

  - by David Moreno García

  I'm working in a new version of an old project that I used to download and process user statuses from Twitter. The main problem of that project was its infrastructure. I used multiple instances of a java application (trackers) to download from Twitter given an specific task (basically terms to search for), connected with a central node (a web application) that had to process all tweets once per day and generate a new task for each trackers once each 15 minutes. The central node also had to monitor all trackers and enable/disable them under user petition. This, as I said, was too slow because I had multiple bottlenecks, so in this new version I want to improve the infrastructure and isolate all functionalities in specific nodes. I also need a good notification system to receive notifications for any node. So, in the next diagram I show the components that I'll need in this new version: As you can see, there are more nodes. Here are some notes about them: Dashboard: Controls trackers statuses and send a single task to each of them (under user request). The trackers will use this task until replaced with a new one (if done, not each 15 minutes like before). Search engine: I need to store all the tweets. They are firstly stored in a local database for each tracker but after that I'm thinking on using something like Elasticsearch to be able to do fast searches. Tweet processor: Just and isolated component with its own database (maybe something like the search engine to have fast access to info generated by the module). In the future more could be added. Application UI: A web application with a shared database with the Dashboard (mainly to store users information and preferences). Indeed, both could be merged into a single web. The main difference with the previous version of the project is that now they will be isolated and they will only show information and send requests. I will not do any heavy task in them (like process tweets as I did before). So, having this components, my main headache is how to structure all to not have to rewrite a lot of code every time I need to access any new data. Another headache is how can I interconnect nodes. I could use sockets but that is a pain in the ass. Maybe a REST layer? And finally, if all the nodes are isolated, how could I generate notifications for each user which info is only in the database used by the Application UI? I'm programming this using Java and Spring (at least I used them in the last version) but I have no problems with changing the language if I can take advantage of a tool/library/engine to make my life easier and have a better platform. Any comment will be appreciated.

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• Common SOA Problems by C2B2

  - by JuergenKress

  SOA stands for Service Oriented Architecture and has only really come together as a concrete approach in the last 15 years or so, although the concepts involved have been around for longer. Oracle SOA Suite is based around the Service Component Architecture (SCA) devised by the Open SOA collaboration of companies including Oracle and IBM. SCA, as used in SOA suite, is designed as a way to crystallise the concepts of SOA into a standard which ensures that SOA principles like the separation of application and business logic are maintained. Orchestration or Integration? A common thing to see with many people who are beginning to either build a new SOA based infrastructure, or move an old system to be service oriented, is confusion in the purpose of SOA technologies like BPEL and enterprise service buses. For a lot of problems, orchestration tools like BPEL or integration tools like an ESB will both do the job and achieve the right objectives; however it’s important to remember that, although a hammer can be used to drive a screw into wood, that doesn’t mean it’s the best way to do it. Service Integration is the act of connecting components together at a low level, which usually results in a single external endpoint for you to expose to your customers or other teams within your organisation – a simple product ordering system, for example, might integrate a stock checking service and a payment processing service. Process Orchestration, however, is generally a higher level approach whereby the (often externally exposed) service endpoints are brought together to track an end-to-end business process. This might include the earlier example of a product ordering service and couple it with a business rules service and human task to handle edge-cases. A good (but not exhaustive) rule-of-thumb is that integrations performed by an ESB will usually be real-time, whereas process orchestration in a SOA composite might comprise processes which take a certain amount of time to complete, or have to wait pending manual intervention. BPEL vs BPMN For some, with pre-existing SOA or business process projects, this decision is effectively already made. For those embarking on new projects it’s certainly an important consideration for those using Oracle SOA software since, due to the components included in SOA Suite and BPM Suite, the choice of which to buy is determined by what they offer. Oracle SOA suite has no BPMN engine, whereas BPM suite has both a BPMN and a BPEL engine. SOA suite has the ESB component “Mediator”, whereas BPM suite has none. Decisions must be made, therefore, on whether just one or both process modelling languages are to be used. The wrong decision could be costly further down the line. Design for performance: Read the complete article here. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Technorati Tags: C2B2,SOA best practice,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• New computer hangs on shutdown/reboot, how to troubleshoot?

  - by torbengb

  Summary: My machine hangs on shutdown/restart: all windows and the menu bar disappear but the desktop wallpaper remains, and it stays like that without disk activity forever (hours). It doesn't even show the shutdown screen (the one with the animated dots) where I could hit ESC and watch the shutdown text. How can I troubleshoot this? Details: I've just received a new nettop computer (Acer Aspire Revo 3700: CPU:Atom D525, GPU:Nvidia ION2). I've just made a clean install of Ubuntu 10.10 using the standard USB pendrive method. The machine boots okay and works OK including WLAN and audio, but the graphics are not OK. Ubuntu offered to install&activate the current recommended Nvidia driver, but the machine hangs on shutdown/restart which prevents the installation of the proper Nvidia driver. I have to cycle the power to reboot. I ran the Update Manager in the hope that the updates would fix the hang-up. At the end of the update-installation it asked to reboot - and got stuck just like before. I see no obvious cause of the freeze and I don't know if it's caused by graphics problems or anything else. The only USB attachment is a mouse/keyboard; I don't have any external storage attached; and I don't have any programs running (the machine freezes even when doing restart right after login). How can I determine what is causing the freeze? How can I fix this? I'm frankly rather disappointed because I bought this new machine in the hopes of getting the graphics to work, which failed miserably on my old machine, even though Ubuntu is supposed to be good with Nvidia. Being a fresh convert from Windows, I was hoping for a happier experience this time, so I'm very much looking forward to your suggestions! ... After posting this question, I see related questions in the right sidebar: this, this, and this. Don't know why these didn't show up while I composed by question. Those questions suggest some ACPI settings but I am not experienced enough to find/change those settings. I'll try the sudo shutdown -h now command when I get home and see if that works, then update this question. I did check the system BIOS but didn't see anything out of the ordinary.

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• What is the correct way to use g_signal_connect() in C++ for dynamic unity quicklists?

  - by hakermania

  I want to make my application use dynamic unity quicklists. For building my application I am using C++ and the QtCreator IDE. When a menu action is triggered I want to be able to have access to a non-static function of my MainWindow class so as to be able to update the Graphical User Interface which can be accessed from inside 'normal' MainWindow's functions. So, I am building up my quicklist like this (mainwindow.cpp): void MainWindow::enable_unity_quicklist(){ Unity_Menu = dbusmenu_menuitem_new(); dbusmenu_menuitem_property_set_bool (Unity_Menu, DBUSMENU_MENUITEM_PROP_VISIBLE, FALSE); Unity_Stop = dbusmenu_menuitem_new(); dbusmenu_menuitem_property_set(Unity_Stop, DBUSMENU_MENUITEM_PROP_LABEL, "Stop"); dbusmenu_menuitem_child_append (Unity_Menu, Unity_Stop); g_signal_connect (Unity_Stop, DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK(&fake_callback), (gpointer)this); if(!unity_entry) unity_entry = unity_launcher_entry_get_for_desktop_id("myapp.desktop"); unity_launcher_entry_set_quicklist(unity_entry, Unity_Menu); dbusmenu_menuitem_property_set_bool(Unity_Menu, DBUSMENU_MENUITEM_PROP_VISIBLE, true); dbusmenu_menuitem_property_set_bool(Unity_Stop, DBUSMENU_MENUITEM_PROP_VISIBLE, true); } void MainWindow::fake_callback(gpointer data){ MainWindow* m = (MainWindow*)data; m->on_stopButton_clicked(); } void MainWindow::on_stopButton_clicked(){ //stopping the process... } mainwindow.h: private slots: void enable_unity_quicklist(); void on_stopButton_clicked(); public slots: static void fake_callback(gpointer data); This suggestion was taken from http://old.nabble.com/Using-g_signal_connect-in-class-td18461823.html The program crashes immediately after I choose the 'Stop' action from the Unity Quicklist. Debugging the program shows that I am not able to access anything MainWindow related inside the on_stopButton_clicked() without crashing. For example, it crashes when doing this check (which is the first 2 lines of code inside this function): if (!ui->stopButton->isEnabled()) return; I have also tested lots of other things that I found at the internet, but nothing of them worked. One interesting solution would be to use gtkmm (http://developer.gnome.org/gtkmm-tutorial/stable/sec-connecting-signal-handlers.html.en) but I am not used at all working on GTK applications (I work solely in Qt) and I don't know if this even suits to my occasion. A compilable example indicating what the problem is can be found at: http://ubuntuone.com/7iKA3wnPmWVp8YNNDLlVQI (3.2Kb) If you are not familiar with the QtCreator IDE, you can compile with the following commands, as long as you have all the needed libraries: cd dynamic_unity_quicklists_test; qmake -project; qmake; make

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• Choose Custom New Tab Pages in Chrome

  - by Asian Angel

  For most people the default New Tab Page in Chrome works perfectly well for their purposes. But if you would prefer to choose what opens in a new tab for yourself then you will definitely want to have a look at the “Define your own new tab!” extension for Google Chrome. Before Unless you are using a Speed Dial (or similar) extension each time you click on the “New Tab Button” you get the same old page. It would certainly be a lot more satisfying if you could choose custom webpage(s) to open as new tabs. After Once you have the extension installed the best thing to do is click on the “New Tab Button”. That will open up the “Options Page” where you can enter one or two custom website URLs of your choosing. Once you have your custom URLs entered click on “Save”. As soon as you click on the “New Tab Button” your new custom webpage(s) will open. If you chose two webpages the first choice will open focused on the “right side” instead of the “left”. Clicking on the “Home Button” will also open the webpage(s) that you chose. The webpage(s) that you chose will also open as your starting “Home Pages” each time that you start your browser. Conclusion If you have wanted to choose your own custom “New Tab Page” then this is the extension that you have been waiting for. Links Download the Define your own new tab! extension (Google Chrome Extensions) Similar Articles Productive Geek Tips Find Similar Websites in Google ChromeAccess Google Chrome’s Special Pages the Easy WayEnable Vista Black Style Theme for Google Chrome in XPSet Custom Reload Times for Individual Webpages in ChromeEnable Auto-Paging Goodness in Google Chrome TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Play Music in Chrome by Simply Dragging a File 15 Great Illustrations by Chow Hon Lam Easily Sync Files & Folders with Friends & Family Amazon Free Kindle for PC Download Stretch popurls.com with a Stylish Script (Firefox) OldTvShows.org – Find episodes of Hitchcock, Soaps, Game Shows and more

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• Meaning of Crawl errors

  - by com

  My question is about definition of Crawl errors in Google Webmaster Tools. Crawl errors is devided into few sections. Let's first consider HTTP section. I assume that all broken links in this section was somehow found by crawler, this is not the links from sitemap. If all this links was found by scanning pages from sitemap for links, why it doesn't mention what was the source page, like in sitemap section with column Linked From. Please correct me if I am wrong. Sitemap section. Looks like all those links came from my sitemap. But there is Linked From column, I already know, that all those broken links is from sitemap, so in order to fix the error, I should revise my sitemap. Am I wrong? Not followed section. I don't know what does it mean. Looks like it accumulates all links that caused redirect, but for some reason Google considers all those redirect as wrong redirect. Do you know if there are any set of rules how to determine wrong redirect. Actually I found were was my mistake, I tried to normalize URL and redirect it to the right URL, but I did normalization in a wrong way. Not found section. This section like HTTP section but with 404 errors. This section has Linked From column. But very often Linked From has unavailable. What does it mean, Google can not say me how it found this non existing page. How this section related to sitemap section. Does this section contains all 404 links from sitemap too. But there is too many 404 links, much more than in sitemap. I tried to take a look what we have in Linked From, and I saw that this link came from sitemap two month ago. But why Google keeps it indexed, the link is already dead, new sitemap doesn't have it. If there is any expire date for old links? Unreachable section. Looks like this section for 500 errors. This section doesn't contain Linked From column. There are too many completely meaningless links, I really don't know where this stuff came from, and without Linked From I am not able to figure out how to deal with it. Sorry for such a big topic, but I just want to make it clear, what every section stands for, because it's extremely crucial in order to deal with all those problems. Hopefully it will be useful not just for me. Thanks!

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• Restoring MSDB

  - by David-Betteridge

  We recently performed a disaster recovery exercise which included the restoration of the MSDB database onto our DR server.  I did a quick google to see if there were any special considerations and found the following MS article.  Considerations for Restoring the model and msdb Databases (http://msdn.microsoft.com/en-us/library/ms190749(v=sql.105).aspx).   It said both the original and replacement servers must be on the same version,  I double-checked and in my case they are both SQL Server 2008 R2 SP1 (10.50.2500).. So I went ahead and stopped SQL Server agent, restored the database and restarted the agent.  Checked the jobs and they were all there, everything looked great, and was until the server was rebooted a few days later.Then the syspolicy_purge_history job started failing on the 3rd step with the error message “Unable to start execution of step 3 (reason: The PowerShell subsystem failed to load [see the SQLAGENT.OUT file for details]; The job has been suspended). The step failed.”   A bit more googling pointed me to the msdb.dbo.syssubsystems table SELECT * FROM msdb.dbo.syssubsystems WHERE start_entry_point ='PowerShellStart'   And in particular the value for the subsystem_dll. It still had the path to the SQLPOWERSHELLSS.DLL but on the old server. The DR instance has a different name to the live instance and so the paths are different.   This was quickly fixed with the following SQL Use msdb; GO sp_configure 'allow updates', 1 ; RECONFIGURE WITH OVERRIDE ; GO UPDATE msdb.dbo.syssubsystems SET subsystem_dll='C:\Program Files\Microsoft SQL Server\MSSQL10_50.DR\MSSQL\binn\SQLPOWERSHELLSS.DLL' WHERE start_entry_point ='PowerShellStart'; GO sp_configure 'allow updates', 0; RECONFIGURE WITH OVERRIDE ; GO Stopped and started SQL Server agent and now the job completes.   I then wondered if anything else might be broken, SELECT subsystem_dll FROM msdb.dbo.syssubsystems Shows a further 10 wrong paths – fortunately for parts of SQL (replication, SSIS etc) we aren’t using! Lessons Learnt 1.       DR exercises are a good thing! 2.       Keep the Live and DR environments as similar as possible.    

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• ZFS pool broken after upgrading to 14.04 LTS

  - by cruiserparts

  Well, I have been putting off upgrading to 14.04 for fear that I would break something. Actually for fear that it would break zfs (or I would break it). I am bascially slightly better than novice at linux. Spent the last couple of hours trying to get the pool back. Now I am at the stage where I don't think I have a complete failure, but I am worried that I may break it. So if could help me not break it, and recover it, I would be thankful. My zfs is file storage and not boot. It was working fine for a year and was working perfectly before the upgrade (scrub and everything was fine). I was confident that the upgrade would work (or at least I could fix it) because I had upgraded once in the past, the pool went missing, but I was able to get it back. I have reinstalled zfs, zfs utilities, and some dependencies (after searching this forum) I think what happened is 14.04 deleted some config file, or specified disk names differntly, but I could be wrong. When I set the pool up originally, I was using specific device Ids as I recall (because I did not want to break things if they got reassigned at boot) So see if this helps. I can confirm that old mountpoint folders are there but empty. no talloc stackframe at ../source3/param/loadparm.c:4864, leaking memory pool: naspool1 state: UNAVAIL status: One or more devices could not be used because the label is missing or invalid. There are insufficient replicas for the pool to continue functioning. action: Destroy and re-create the pool from a backup source. see: http://zfsonlinux.org/msg/ZFS-8000-5E scan: none requested config: NAME STATE READ WRITE CKSUM naspool1 UNAVAIL 0 0 0 insufficient replicas raidz1-0 UNAVAIL 0 0 0 insufficient replicas scsi-SATA_WDC_WD1001FALS-_WD-WMATV0990825 UNAVAIL 0 0 0 scsi-SATA_WDC_WD1001FALS-_WD-WMATV2995365 UNAVAIL 0 0 0 scsi-SATA_WDC_WD10EARS-00_WD-WMAV51894349 UNAVAIL 0 0 0 ___@ourserver:~$ sudo zpool import naspool1 cannot import 'naspool1': a pool with that name is already created/imported, and no additional pools with that name were found ___@ourserver:~$ sudo zfs list no datasets available What other output can I post to help? I'm thinking the update deleted some zfs config files. It seems like the pool exists and certainly 3 perfectly working disks did not fail at once. I am worried that I may break something without a little bit of guideance. Thanks.

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• Ubuntu hangs on booting up after a update

  - by alFReD NSH

  I've made a clean install yesterday, for the first time restarted, everything went good and then after I updated packages and copied my old home directory to replace the new one, when I restarted it hung when it was booting. I tried reinstalling again and doing the same thing, but again same thing happened. Here's what I see, before when the Ubuntu logo with the five dots is shown: Then after that, 3 or 4 of the dots will load and hangs there. If I press arrow up before that, this will be shown I started my laptop again today(the pictures are for the day before) and after that, boot up with live CD and got the logs. dmesg: http://pastebin.com/aVxV7BQF syslog: http://pastebin.com/4E2BrRUK And some info: alfred@alFitop:~$ uname -a Linux alFitop 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux lshw: http://pastebin.com/AZbKJmsT sources.list : http://pastebin.com/2HazmuyV My problem is a bit similar to here: http://ubuntuforums.org/showthread.php?t=1918271 Though I didn't change my x.org config. Only changed home directory and updated packages. I've tried memtest and fschk, both passed. In the recovery mode boot option, I've also realized that same things happen in failsafe graphical mode. But when I go into the network mode, I can boot up my system, but of course same the graphics are just basic. Adding blacklist intel_ips to /etc/modprobe.d/blacklist.conf solves the first message, but still I get the broken pipe and CPU stack traces. The current kernel version is 3.2.0-25, I've tried booting up in the 3.2.0-23(the one the installer came with, but same results.) Also uninstalled apparmor, didn't help. I've installed Ubuntu again, this time without copying the home directory, also same result. --- UPDATE --- This problem was solved before with removing backports, but its back again! I've updated my laptop last night and the problem came back. It's definitely one of these packages. My /var/log/apt/term.log and /var/log/apt/history.log. I'm almost having the same situation. --- UPDATE --- I realized this also have happened on times that I have updated(haven't restarted after it) and my computer power has been cut off and its shutdown due to lack of power. And I realized if I just do as I answered but not in somewhere without GUI(networking mode has the GUI) it wouldn't work.

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• Can't save data for a member in a data form

  - by RahulS

  Implied sharing is an old thing everyone knows the reasons and solutions of that, still little theory about that: With Essbase implied sharing, some members are shared even if you do not explicitly set them as shared. These members are implied shared members. When an implied share relationship is created, each implied member assumes the other member’s value. Essbase assumes (or implies) a shared member relationship in these situations: 1. A parent has only one child 2. A parent has only one child that consolidates to the parent In a Planning form that contains members with an implied sharing relationship, when a value is added for the parent, the child assumes the same value after the form is saved. Likewise, if a value is added for the child, the parent usually assumes the same value after a form is saved.For example, when a calculation script or load rule populates an implied share member, the other implied share member assumes the value of the member populated by the calculation script or load rule. The last value calculated or imported takes precedence. The result is the same whether you refer to the parent or the child as a variable in a calculation script. For more information have a look at: http://docs.oracle.com/cd/E17236_01/epm.1112/hp_admin_11122/ch14s11.html Now the issue which we are going to talk about is We loose data on save even when the parent is dynamic calc and has a single child. A dynamic calc parent to a single child:  If we design the form with following selection: In the data form we will find parent below the member and this is by design whenever you make a selection using commands to select all the member below parent, always children will appear before the parent: Lets try to enter data, Save it Now, try to change the way we selected members Here we go: Now the question again why this behavior: 1. Data from Planning data form passes to Essbase row by row, 2. Because in data form the child member appears before the parent, 3. First, data goes to Essbase for child (SingleStoreChild), 4. Then when Planning passes the data for parent there was #Missing or No data,  5. Over writes the data to #missing. PS: As we know that dynamic calc members are calculated on the fly they are not allocated with any memory in the Essbase, here the parent was dynamic calc and it was pointing to same memory as child in the background, when Planning was passing data to Essbase for second row it has updated the child with missing data.(Little confusing, let me know if you need more explanation) 6. As one of the solutions just change the order of appearance of parent and child. Cheers..!!! Rahul S. https://www.facebook.com/pages/HyperionPlanning/117320818374228

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• Do we need to adopt a black-box asset our project is inheriting from its predecessor?

  - by Tom Anderson

  Our client has an eCommerce site which was developed by an in-house team, and is now showing its age. I work for a firm brought in as external contractors to build a replacement. Part of the current site is a Flash viewer applet which displays media about the product - zoom-able images, 360-degree views, movies, and so on. We need to show the same media the current site does, so we are simply reusing the viewer. The viewer is embedded on a page in the usual way, and told what media to show by means of an XML file it loads from our server, which is pretty simple for us to generate. We've got this working; it was pretty straightforward. But what else do we need to do? The thing is, as far as we're concerned, the viewer is a binary blob which is served from the client's content-distribution network. We embed it, feed it some XML, and it does its job, but we have no power over its internals. It's completely opaque to us - a black box. We can use it to do what it does, but we can't change it, so if we ever need to do something different, we're stuffed. We're building this site for the client, and when we're done, we'll hand it over for them to maintain. We won't be doing the maintenance ourselves. There's a small team within the client who are working as part of our team, and who will be the ones doing the maintenance. That team only includes one person from the team that built the old site, and it's not someone who knows the image viewer. The people who do know the image viewer are not slated to join our team when our system replaces theirs - they'll be moved to other projects. The documentation on the viewer is extremely thin, and as far as i know doesn't cover the internals at all. My worry is that if someone doesn't take some positive action, all knowledge of the internal workings of the viewer - even down to where the source code for it is - will be lost. It's possible it already has been. Is this something to worry about? If so, whose job is it to worry about it? What should they do about it once they've got worried?

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• Geek Bike Ride JavaOne 2012

  - by Tori Wieldt

  "Geek Bike Ride?" the clerk at the bike rental shop asked. "Are you guys all from the same company?" "We aren't even from the same country!" we answered. "I'm from Russia." "We're from Germany."  "I'm from Belgium." "I'm from Palo Alto." "I'm from Japan."  "We're from Brazil." "We're from Brazil." "I'm from Sweden." "Coooool" was all she could say. She was right. The Geek Bike Ride was cooool. We had 39 bike riders and one skater show up Saturday for a great route from San Francisco's Fisherman's Wharf, across the Golden Gate bridge, to Saulsalito, and back to the city by ferry. Duke Bike jerseys, sponsored by OTN, were given out. To make sure Java developers got them, each person had to answer a Java question to get a jersey. The questions were really hard, like "Who is the Father of Java?" "What's the biggest Java conference in San Francisco?" The best was when the question was "Name one of Duke's Choice Award winner from this year," and Régina ten Bruggencate answered answered "Me!"  It was foggy throughout the day, with the sun poking out occasionally. The fog was thickest on the bridge, more that one rider commented that we were "in the cloud." It was a great day to meet new friends, and have a chat with old friends. We all had fun, though some of us may more a little more slowly during JavaOne. Ride on!  Photos by permission by Arun Gupta and Yoshio Terada. Thanks, guys!

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• ArchBeat Link-o-Rama for 2012-04-05

  - by Bob Rhubart

  Webcast: Oracle Maximum Availability Architecture Best Practices event.on24.com Date: Thursday, April 12, 2012 Time: 10:00 AM PDT Oracle expert Tom Kyte discusses how Oracle’s Maximum Availability Architecture can help to minimize the costs and risk of downtime. Oracle Enterprise Manager Ops Center 12c Launch - Interactive Webcast and Live Chat www.oracle.com Thursday, April 12, 2012. 9 a.m. PT / 12 p.m. ET / 4 p.m. GMT. Speakers: Steve Wilson (VP Systems Management, Oracle) John Fowler (Exec VP Systems, Oracle) Brad Cameron (VP Development, Oracle Fusion Middleware) Bill Nesheim (VP Oracle Solaris) Dennis Reno (VP Customer Portal Experience, Oracle) Mike Wookey (Chief Architect, Oracle Enterprise Manager Ops Center) Prasad Pai (Sr Director, Oracle Enterprise Manager Ops Center) 2012 Real World Performance Tour Dates |Performance Tuning | Performance Engineering www.ioug.org Coming to your town: a full day of real world database performance with Tom Kyte, Andrew Holdsworth, and Graham Wood. Rochester, NY - March 8 Los Angeles, CA - April 30 Orange County, CA - May 1 Redwood Shores, CA - May 3 Oracle Technology Network Developer Day: MySQL - New York www.oracle.com Wednesday, May 02, 2012 8:00 AM – 4:30 PM Grand Hyatt New York 109 East 42nd Street, Grand Central Terminal New York, NY 10017 Webcast Series: Data Warehousing Best Practices event.on24.com April 19, 2012 - Best Practices for Workload Management of a Data Warehouse on Oracle Exadata May 10, 2012 - Best Practices for Extreme Data Warehouse Performance on Oracle Exadata How to create a Global Rule that stores a document’s folder path in a custom metadata field | Nicolas Montoya blogs.oracle.com An illustrated how-to from Oracle Fusion Middleware A-Team blogger Nicolas Montoya. Get Proactive with Fusion Middleware | Daniel Mortimer blogs.oracle.com Daniel Mortimer shows how to access "a one stop shop for navigating to proactive support material, tools, and communication channels related to Oracle Fusion Middleware." Build an enterprise on 'other peoples' work', via SOA and cloud | Joe McKendrick www.zdnet.com Are you down with OPW? Joe McKendrick's synopsis of a recent presentation by David Linthicum focuses on reuse. Oracle Fusion Middleware Security: Unsolicited login with OAM 11g | Chris Johnson fusionsecurity.blogspot.com Chris Johnson shows how to create a shopping cart login model using "plain old HTML." How to use the Human WorkFlow Web Services | Edwin Biemond biemond.blogspot.com Oracle ACE Edwin Biemond shows how to invoke two WorkFlow web services to query the Human task in Oracle SOA Suite with your own ordering and restrictions. Bad Practice Use Case for LOV Performance Implementation in ADF BC | Andrejus Baranovskis andrejusb.blogspot.com "If you want to learn something well, there is nothing better [than] to learn bad practices first," says Oracle ACE Director Andrejus Baranovskis. Thought for the Day "The best meetings get real work done. When your people learn that your meetings actually accomplish something, they will stop making excuses to be elsewhere." — Larry Constantine

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• Memory Glutton

  - by AreYouSerious

  I have to admit that I can't get enough storage. I have hard drives just sitting around in case I need to move somthing, or I'm going to a friends and either they want something I have or I want something they might have. What I'm going to talk about today is cost effective memory for devices. I don't know how this particualr device will work in a camera, as That's not what I use in my camera, in fact I don't have a camera that doesn't either use SD, or the old compact flash card, that's not so compact anymore. There's this thing that uses two micro sd cards to double the capacity of your memory, and it costs about 4 bucks, without the Micro SD card. I have had one for about a year and was going to throw it away because I couldn't get it to work with my computer, or with my Sony Reader. However I found out by one last ditch effort that this thing works beautifully with my Sony PSP. there is no software to speak of associated with this thing, you simply put in two SD cards of the same size... (if you put in two different sizes it will still work, you'll only double the smallest cards size though) and format through the psp. Viola you know have a 29 GB memory card for your PSP. why is this important ? well for starters you can carry more music and more videos. Second if you have gone the way of the hacker.... you can store more games on your card... There are just a few things you have to note.... I speak from experience... you have to use the usb connection to the PSP to do any file moving, as I said previously said card doesn't play well with my computers or card readers... I not saying it won't work at all, just hasn't work with anything I own. Second. If for some reason you try to Hack/crack your PSP don't attempt to delete a game from the psp, use the usb file browser to remove games. if you delete from the PSP you are likely to have to move all your files off, reformat and start again... just a couple things I have noticed... if I had done something like that.   anyway, Here's a link.... http://www.photofast-adapter.com/  and if you want to buy one, get it off ebay, I've seen them as low as $1.99

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• Becoming the well-integrated content company (and combating AIUTLVFS)

  - by Lance Shaw

  Every single day, each of us create more and more content. Sometimes it is brand new material and many times it is iterations of existing content, but no one would argue that information and content growth is growing at an almost exponential rate. With all this content being created and stored, a number of problems naturally arise. One of the most common issues that users run into is "Am I Using The Latest Version of this File Syndrome", or AIUTLVFS. This insidious syndrome is all too common and results in ineffective, poor or downright wrong business decisions being made.  When content or files are unavailable or incorrect within the scope of key business processes, the chance for erroneous and costly business decisions is magnified even further. For many companies, the ideal scenario is to be able to connect multiple business systems, both old and new, into one common content repository.  Not only does this reduce content duplication, it also helps guarantee that everyone in various departments is working off the proverbial "same page".  Sounds simple - but for many organizations, the proliferation of file shares, SharePoint sites, and other storage silos of content keep the dream of a more efficient business a distant one. We've created some online assets to help you in your evaluation and eventual improvement of your current content management and delivery systems. Take a few minutes to check out our Online Assessment Tool.  It's quick, easy and just might provide you with insights into how you can improve your current content ecosystem. While you are there, check out our new Infographic that outlines common issues faced by companies today. Feel free to save our informative Infographic PDF and share it with business colleagues and your management to help them understand the business costs and impact of inaction. Together we can stop AIUTLVFS in its tracks and run our businesses more effectively than ever. Additionally, we hope you will take a few minutes to visit our new and informative webpages dedicated to the value of a well connected, fully integrated content management system. It's a great place to learn more about how integrating WebCenter Content into your infrastructure can lower your operational costs while boosting process and worker efficiency.

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• Which is the most practical way to add functionality to this piece of code?

  - by Adam Arold

  I'm writing an open source library which handles hexagonal grids. It mainly revolves around the HexagonalGrid and the Hexagon class. There is a HexagonalGridBuilder class which builds the grid which contains Hexagon objects. What I'm trying to achieve is to enable the user to add arbitrary data to each Hexagon. The interface looks like this: public interface Hexagon extends Serializable { // ... other methods not important in this context <T> void setSatelliteData(T data); <T> T getSatelliteData(); } So far so good. I'm writing another class however named HexagonalGridCalculator which adds some fancy pieces of computation to the library like calculating the shortest path between two Hexagons or calculating the line of sight around a Hexagon. My problem is that for those I need the user to supply some data for the Hexagon objects like the cost of passing through a Hexagon, or a boolean flag indicating whether the object is transparent/passable or not. My question is how should I implement this? My first idea was to write an interface like this: public interface HexagonData { void setTransparent(boolean isTransparent); void setPassable(boolean isPassable); void setPassageCost(int cost); } and make the user implement it but then it came to my mind that if I add any other functionality later all code will break for those who are using the old interface. So my next idea is to add annotations like @PassageCost, @IsTransparent and @IsPassable which can be added to fields and when I'm doing the computation I can look for the annotations in the satelliteData supplied by the user. This looks flexible enough if I take into account the possibility of later changes but it uses reflection. I have no benchmark of the costs of using annotations so I'm a bit in the dark here. I think that in 90-95% of the cases the efficiency is not important since most users wont't use a grid where this is significant but I can imagine someone trying to create a grid with a size of 5.000.000.000 X 5.000.000.000. So which path should I start walking on? Or are there some better alternatives? Note: These ideas are not implemented yet so I did not pay too much attention to good names.

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