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  • A project idea I've got...

    - by Mr Teeth
    Hi, Next year I will be doing a final year project at Uni. I've already thought of one and was wondering what you guys think of it. I want to create a University Information Search for prospective students who are trying to look for an affordable University to attend. It will depend on the student's family income and the grades they get. They enter in those two parameters (and some more) and it comes up with a list of suitable Unis based on their criteria. This is not about the price of tution fee. It's mostly to do with the cost of living. Stuff like: Rent (if living in a private flat). Student Accomadation. Cost of traveling to your home and back (for holidays). ...and some other stuff stuff I haven't thought about yet. It'll mostly be GUI driven with some textual information. I'm also thinking of using it as a website interface. What do you guys think? Can I program something like this Java? If there's any holes you see in my idea please tell me.

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  • Learning Programming, Suggestions for a roadmap

    - by RisingSun
    Hi, Some background first- I am new to programming and have discovered it rather late in life; Like many hobbyists, my introduction to the subject has been through php/jquery (yes, i know the popular mood around here... they-are-not-real-programminng-languages ;-) ). I like to believe that I am reasonably competent at what I do in my other life and this developing addiction to coding has taken a very heavy toll on my professional prospects. This is the question: What programming languages next? (No plans to ditch php in the immediate future, that will involve rewriting much of my code) Any absolutely essential books I must read? Is it necessary to join a college/university course? Do I need to ditch my other profession to continue serious learning? My goals are: Develop a solid understanding of the science and art of programming. Continue to work on my own web application (Hands on learning suits me best) I am something of a generalist interested in everything from UI to database performance

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  • GDD-BR 2010 [1C] Google Web Tookit: What it is, How it Works and Deeper Dives

    GDD-BR 2010 [1C] Google Web Tookit: What it is, How it Works and Deeper Dives Speaker: Chris Ramsdale Track: Cloud Computing Time slot: C [12:05 - 12:50] Room: 1 Level: 151 If you're like the rest of us, at some point in your web app development you've wondered if there was an easier solution. One that includes built-in debuggers, code refactoring, reliable syntax highlighting, etc. After all, why should the server-side and desktop programmers get all of the good tools? The good news is that with Google Web Toolkit (GWT) you do have access to these tools. And in this session, Chris Ramsdale will get you up and running with GWT, including what it is, how it works, and deeper dives into generators, native Javascript interop, and compiler optimizations. From: GoogleDevelopers Views: 1 0 ratings Time: 35:02 More in Science & Technology

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  • Red Samurai Performance Audit Tool – OOW 2013 release (v 1.1)

    - by JuergenKress
    We are running our Red Samurai Performance Audit tool and monitoring ADF performance in various projects already for about one year and the half. It helps us a lot to understand ADF performance bottlenecks and tune slow ADF BC View Objects or optimise large ADF BC fetches from DB. There is special update implemented for OOW'13 - advanced ADF BC statistics are collected directly from your application ADF BC runtime and later displayed as graphical information in the dashboard. I will be attending OOW'13 in San Francisco, feel free to stop me and ask about this tool - I will be happy to give it away and explain how to use it in your project. Original audit screen with ADF BC performance issues, this is part of our Audit console application: Audit console v1.1 is improved with one more tab - Statistics. This tab displays all SQL Selects statements produced by ADF BC over time, logged users, AM access load distribution and number of AM activations along with user sessions. Available graphs: Daily Queries  - total number of SQL selects per day Hourly Queries - Last 48 Hours Logged Users - total number of user sessions per day SQL Selects per Application Module - workload per Application Module Number of Activations and User sessions - last 48 hours - displays stress load Read the complete article here. WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Wiki Technorati Tags: Red Samurai,ADF performance,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

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  • SGE: downtime planning

    - by mousee
    I need to plan a downtime for a maintenance of my environment (or some part of my environment) by means of Sun Grid Engine. Is it possible to somehow use backfilling information to tell the grid engine to plan only those jobs on cluster which are able to finish (i have backfilling information) till let's say 10 am next day? Can I then at 10 am rely on the fact that all compute nodes are clean, jobs are only queued, no job is planned and so that I can start maintenance? Thank you for your time. mousee

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  • How can I disable logging in Tomcat 7?

    - by WilliamMayor
    I have a Tomcat 7 server running in a VM that has very little disk space (20G). Over the course of a few days Tomcat will fill the space with logging info (usually about 15G before it runs out). I've tried turning down the log level (from INFO to SEVERE) in the logging.properties file, I've also tried sending the log info to /dev/null. It doesn't seem to work as I still get a full log directory after no time at all. Can I put a file size limit on the log files? Is something overriding the properties I'm setting? Where can I find this information? My Google Fu just returns information about logging from within an application using JULI.

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  • How can I keep websites from knowing where I live?

    - by D Connors
    This questions is related to issues and practicality, not security. I live in Brazil and, apparently, every single website I visit knows about it. Usually that's ok, but there are quite a few sites that don't make use of that information adequately. For instance: Bing keeps thinking that brazilian pages are way more relevant to me than american ones (which they're not). Google.com always redirects me to google.com.br. Microsoft automatically sends me to horribly translated support pages in portuguese (which would just be easier to read in english). These are just a few examples. Usually it's stuff I can live with (or work around), but some of them are just plain irritating. I have geolocation disabled in firefox, so I guess they're either getting this information from my IP or from windows itself (which I bought here). Is there a way to avoid this? Either tell them nothing or make them think I live somewhere else? Thanks

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  • Troubleshooting "connection reset" error on my linux server

    - by Chris
    I fervently hope someone here can help me with the problem I am experiencing. I am a programmer, and I have very little understanding of linux sysadmin terminology/concepts. I am attempting to troubleshoot a problem with my website. It is a Facebook app, and whenever I try to connect using Chrome, I get an error stating that the "connection was reset". I have been Googling for four days straight trying to find a solution to this problem, but no joy. A big part of the problem is that I do not understand the terminology being employed, and the output from many of the tools referenced is likewise indecipherable to me. I am running a VPS with CentOS 5, apache, PHP, and MySQL. I could spam this post with a ton of information from my iptables, apache, etc but if anyone needs information from my server, please let me know how to get it, and I will post it here. Thank you for any help you can offer!

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  • Linux (non-transparent) per-process hugepage accounting

    - by Dan Pritts
    I've recently converted some java apps to run with linux manually-configured hugepages. I've got about 10 tomcats running on a system and I am interested in knowing how much memory each one is using. I can get summary information out of /proc/meminfo as described in Linux Huge Pages Usage Accounting. But I can't find any tools that tell me about the actual per-process hugepage usage. I poked around in /proc/pid/numa_stat and found some interesting information that led me to this grossity: function pshugepage () { HUGEPAGECOUNT=0 for num in `grep 'anon_hugepage.*dirty=' /proc/$@/numa_maps | awk '{print $6}' | sed 's/dirty=//'` ; do HUGEPAGECOUNT=$((HUGEPAGECOUNT+num)) done echo process $@ using $HUGEPAGECOUNT huge pages } The numbers it gives me are plausible, but i'm far from confident this method is correct. Environment is a quad-CPU dell, 64GB ram, RHEL6.3, oracle jdk 1.7.x (current as of 20130728)

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  • Google I/O 2012 - Breaking the JavaScript Speed Limit with V8

    Google I/O 2012 - Breaking the JavaScript Speed Limit with V8 Daniel Clifford Are you are interested in making JavaScript run blazingly fast in Chrome? This talk takes a look under the hood in V8 to help you identify how to optimize your JavaScript code. We'll show you how to leverage V8's sampling profiler to eliminate performance bottlenecks and optimize JavaScript programs, and we'll expose how V8 uses hidden classes and runtime type feedback to generate efficient JIT code. Attendees will leave the session with solid optimization guidelines for their JavaScript app and a good understanding on how to best use performance tools and JavaScript idioms to maximize the performance of their application with V8. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 3049 113 ratings Time: 47:35 More in Science & Technology

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  • Google I/O 2010 - Cloud computing for geospatial apps

    Google I/O 2010 - Cloud computing for geospatial apps Google I/O 2010 - Unleash your map data: Cloud computing for geospatial applications Geo 101 Tom Manshreck The Google Maps API made geospatial development accessible to all but hosting your data remains complex and time consuming. This session will detail the services Google offers for storing your geospatial data in the cloud, illustrate the ways in which that data can be accessed and visualized, and walk through development of a retail store finder using these technologies. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 322 0 ratings Time: 40:22 More in Science & Technology

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  • SOA Suite 11g Purging Guide

    - by ShawnBailey
    We now have a single source of truth concerning Purging in My Oracle Support. The material is contained within the SOA 11g Infrastructure Database: Installation, Maintenance and Administration Guide under the 'Purging' tab. All of the previous purge related content for 11g is now deprecated and many of the documents will redirect to this Guide while others simply contain a disclaimer. What does the Guide contain? Summary Overview of Purging. What it does and why it's important Specific information on each release of 11g Available patches for each release of 11g and recommendations How to run the different purge scripts Tips on improving performance How to begin troubleshooting problems with the process How to identify orphaned records Useful reference information Here are a couple of screen shots to help with navigation: Guide Landing Page: (click image for full view) Select the 'Purging' tab: (click image for full view) The left menu contains the following options: Alternative: Database Partitioning What to do on 11gR1 GA (11.1.1.1) What to do on PS1 (11.1.1.2) What to do on PS2 (11.1.1.3) What to do on PS3 (11.1.1.4) What to do on PS4 (11.1.1.5) Overview of PS5 (11.1.1.6) Purging Step by Step Performance Tips Troubleshooting Purge Orphaned Records Reference This resource goes hand in hand with the excellent documents SOA 11g Database Growth Management Strategy and Start Small, Grow Fast available on OTN. The latest product documentation can be found here.

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  • Scripting language for filling out web form

    - by ityler22
    I have a job as an intern at a technology company, I was given the unfortunate job of performing some data entry into our web management system. The information entered into the web form is stored in a MySQL DB. Upon receiving the data I realized I would have to submit this online form about 1000 different times all consisting of about 10 different text fields / check boxes per form. (So in other words, would be completely mind numbing and be a ridiculous waste of time and resources, or so I thought...) Having used databases a good bit prior to this, my immediate reaction was to just write a short MySQL script to bulk import all of the data, especially since it was already presented to me in an excel spreadsheet ready to go. Thought it may have been some sort of a test since it seemed too obvious. I wrote the script which consisted of about 10 lines of code but was then informed I couldn't be trusted with MySQL Admin privileges to run said script. So my next thought would be to write a script to just enter the information through the web form (Which will take ten times longer but it's what I have to) Being unfamiliar with scripting of this nature (seems like I would need something similar to a bot, but the good kind) I was unsure of how to proceed to do this. Is there a preferred language to use to enter the data i have into the web form I do have access to? I'm not particularly looking for this to be done for me by any means just a nice point in the right direction as far as what scripting language to use and how to pair that with the data I have that needs to be entered. Thanks for the help/ valuable input! EDIT: Is there a way to perform this using perl without having access to place any files on the server? Would I be able to run some Javascript loops to pull the data out of .csv or just a .txt format with line delimiters and insert it into the web form?

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  • Doing Master'S at Home.

    - by Demla Pawan
    I mean,as I'm a computer science student at present,soon I'm going to get job at somewhere,But I wish to go for higher studies in MS,My interests are automation of things using web app's, and I wish to research in AI,as I think it may resolve most of ours present problem's. So,I'm thinking of, is there anyway to do MS like studies and research in organised manner at home only, as a part-time research work,bcoz I like learn new things anytime. So,Finally can you tell me what's the pattern of MS studies and which MS field suits me, as I'm interested in web and Mobility solution like mobiles. and along with that is there a correspondence MS possible,from where.

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  • What happens if an OpenStack cloud controller dies?

    - by magu
    I've been reading up on OpenStack and how we can re-create an EC2/S3-style cloud for our internal development and I'm having a hard time finding information on how the OpenStack cloud controller provides redundancy of the cloud management services. I know I can setup multiple Swift and Nova nodes, but not a single document/article/howto/wiki contains information on: a) what happens if the cloud controller node dies; and b) how to setup redundant cloud controllers. It seems to me that, although it is massively scalable, there is a big single-point-of-failure built into OpenStack. Can anyone with more experience on OpenStack please shed some light as to how it all works in regards to high-availability?

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  • Doing Master's at Home

    - by parmanand
    I'm a computer science student at present, soon I'm going to get job at somewhere. But I wish to go for higher studies in MS. My interests are automation of things using web apps, and I wish to research in AI, as I think it may resolve most of ours present problem's. Is there any way to do MS like studies and research in organised manner at home only, as a part-time research work? Because I like to learn new things anytime. Finally can you tell me what's the pattern of MS studies and which MS field suits me, as I'm interested in web and Mobility solution like mobiles. And along with that is a correspondence MS possible and if so, from where?

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  • Which architecture should I choose for this project?

    - by Jichao
    I have a project. The server which based on a phone PCI-board is responsible for received phone calls from the customer and then redirect the phone calls to the operators. I have decided to code the server using c++ programming language and qt framework because the PCI-board SDK's interface is c/c++ originated and for the sake of portability. The server need to send the information of the the customer to the operator while ringing the operator and the ui interface of the operator client should be browser-based. Now the key problem is how could the server notify the operator that there is a phone call for he/she. One architecture I have considered is like this, The operator browser client use ajax pooling the web server to check whether there is call to the client; the web server pooling the database server to check whether there is call; the desktop server(c++) wait for the phone calls and set the information in the database. The other operations such as hang up the phone call from the client, retransfer the phone call to the other operator also use this architecture. Then, is there any way other than pooling the server(js code setInterval('getDail', 1000)) to decide whether there is a call to the operator? Is this architecture feasible or should I use some terrific techniques that I do know such as web services,xml-rpc, soap???

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  • "unresolvable problem" error when upgrading from 12.04 to 14.04

    - by flyingfisch
    So I have solved this issue, but now I have another problem: An unresolvable problem occurred while calculating the upgrade. This can be caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu * Unofficial software packages not provided by Ubuntu If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. I am not upgrading to a pre-release version of Ubuntu and I am not running a pre-release either. I have unchecked all my 3rd-party packages using Ubuntu Software Manager, EditSoftware Sources... What else might be wrong? UPDATE After doing sudo update-manager -d and sudo apt-get update;sudo apt-get dist-upgrade as per JimB's post, and then running sudo do-release-upgrade, here what I get: Err http://extras.ubuntu.com trusty/main Translation-en Err http://extras.ubuntu.com trusty/main Translation-en_US Err http://extras.ubuntu.com trusty/main Translation-en Ign http://extras.ubuntu.com trusty/main Translation-en_US Ign http://extras.ubuntu.com trusty/main Translation-en Fetched 0 B in 0s (0 B/s) Checking package manager Reading package lists... Done Building dependency tree Reading state information... Done Building data structures... Done Calculating the changes Calculating the changes Could not calculate the upgrade An unresolvable problem occurred while calculating the upgrade. This can be caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu * Unofficial software packages not provided by Ubuntu If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. Restoring original system state Aborting Reading package lists... Done Building dependency tree Reading state information... Done Building data structures... Done === Command detached from window (Mon Aug 18 23:53:10 2014) === === Command terminated with exit status 1 (Mon Aug 18 23:53:10 2014) ===

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  • Java Components Landing Page and Documentation Updates

    - by joni g.
    The new Java Components page provides access to the documentation for tools that are available for monitoring, managing, and testing Java applications. Documentation for the new versions of the following tools is available: JavaTest Harness 4.6. The JavaTest harness is a general purpose, fully-featured, flexible, and configurable test harness that is suited for most types of unit testing. See the JavaTest tab for documentation. SigTest 3.1. SigTest is a collection of tools that can be used to compare APIs and to measure the test coverage of an API. See the SigTest tab for documentation. The following tools are part of Oracle Java SE Advanced and Oracle Java SE Suite. Java Mission Control and Java Flight Control 5.4 are supported in JDK 8u20. Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. See the JMC tab for documentation. Advanced Management Console 1.0 is a new tool that is now available. AMC can be used to view information about the Java applets and Java Web Start applications running in your enterprise, and create deployment rules and rule sets to manage the execution of these applications. See the AMC tab for documentation. Usage Tracker tracks how Java Runtime Environments (JREs) are being used in your systems. See the Usage Tracker tab for documentation.

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  • Google I/O 2010 - Measure in milliseconds: Meet Speed Tracer

    Google I/O 2010 - Measure in milliseconds: Meet Speed Tracer Google I/O 2010 - Measure in milliseconds redux: Meet Speed Tracer GWT 201 Kelly Norton It turns out that web apps can be slow for all sorts of opaque and unintuitive reasons. Don't be fooled into thinking that bloated, slow JavaScript is the only culprit. This session introduces you to Speed Tracer, a new GWT tool that can tell you exactly where time is going within the browser. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 7 0 ratings Time: 01:00:53 More in Science & Technology

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  • Unable to install Skype ("Unmet dependencies" error)

    - by Alex Maslakov
    Trying to install skype on Ubuntu 12, I faced and issue. When I type: sudo apt-get update sudo apt-get install skype I get an error Reading package lists... Done Building dependency tree Reading state information... Done skype is already the newest version. You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: skype : Depends: lib32stdc++6 (>= 4.1.1-21) but it is not going to be installed Depends: lib32asound2 (> 1.0.14) but it is not going to be installed Depends: ia32-libs but it is not going to be installed Depends: libc6-i386 (>= 2.7-1) but it is not going to be installed Depends: lib32gcc1 (>= 1:4.1.1-21+ia32.libs.1.19) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). How do I solve it? Is the way I'm using the right one to install skype? UPDATE: If I try to do sudo apt-get install lib32stdc++6 lib32asound2 ia32-libs libc6-i386 lib32gcc1 skype then I get Reading package lists... Done Building dependency tree Reading state information... Done skype is already the newest version. You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: ia32-libs : Depends: ia32-libs-multiarch lib32asound2 : Depends: libasound2 (= 1.0.25-1ubuntu10) E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

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  • how to detect device type from connected device to router?

    - by molly
    i have a att router and there is an unknown device connected to my network. i cant seem to kick it off because of how att's router settings are created which is kind of dumb. i am able to see its local ip and mac address. i am on a mac with snow leopard. how can i get more information on the device with the information that i have? i want to see what kind of device it is, i have checked all deviced that are connected to the router and non seem to match the local ip that is connected. i have wpa encryption setup with a strong password.

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  • SD card won't appear after upgrade to 13.10

    - by Pixel
    My SD card won't mount when I put it into my lap top, everything was fine before the upgrade. The information about the SD card appears just fine when I type "sudo fdisk l " it just says that it doesn't have a valid partition table. When I type "_sudo blkid" I get the following answer: /dev/sda1: UUID="CCA8-9030" TYPE="vfat" /dev/sda2: UUID="8a1d135b-384b-432d-b608-64dcf09ada24" TYPE="ext2" /dev/sda3: UUID="7s6PtU-kj2Z-N8XD-0mzl-840i-i3HG-enlbAf" TYPE="LVM2_member" /dev/sr0: LABEL="Bamboo CD" TYPE="iso9660" /dev/mapper/ubuntu--vg-root: UUID="c9b521c8-7c9f-493b-95c8-a7d79c465318" TYPE="ext4" /dev/mapper/ubuntu--vg-swap_1: UUID="7f155ab6-e1b9-485b-a2bc-443c0622284d" TYPE="swap" When I use lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 13d3:5710 IMC Networks UVC VGA Webcam Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub I've read the other threads and I couldn't really find any good answers, my card reader was compatible with the previous version of ubuntu, so technically it should still be compatible with the next version. Also I can't erase what's on the card, it contains important data which I need... :/ If you need anymore information just ask, I'll give it as soon as I can. Pixel.

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  • Google I/O 2012 - Fast UIs for the Cross-Device Web

    Google I/O 2012 - Fast UIs for the Cross-Device Web Boris Smus One of the great features of the modern web is that sites work on any device with a browser. This session will focus on creating UIs for the cross-device web. We will cover building web sites that support multiple device form factors (responsive and non-responsive approaches), discuss single page sites and some of the layout features in modern mobile browsers, and do a deep dive into multi-touch input on the web. Finally, we'll show some of the awesome new mobile debugging tools in Chrome and Chrome for Android. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 105 3 ratings Time: 49:31 More in Science & Technology

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  • Clean toshiba a300d 14r

    - by pask
    Hi all, i'm not able to open my notebook, a toshiba a300d-14r. Googling i don't find any useful information... This is official site: http://it.computers.toshiba-europe.com/innovation/jsp/SUPPORTSECTION/discontinuedProductPage.do?service=IT&PRODUCT_ID=1056713&DISC_MODEL=1#0 Anyone have an idea to open it. The fan goes crazy when power on and i suppose that is full of dusty. I need to clean the fan... Is there a guide or a useful information to do it? thanks, A

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