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  • what are software and hardware requirement for building REST web services in java

    - by user1846545
    I want to build rest web services in java. can some body tell me what are the software and hardware requirements for that? I want to know it in sense like one computer, which one database and which one server and if any other because i want to use these web services globally and want to post JSON in request and also want to get response in json for an android app. thanx, any answer would be a great help for me.

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  • Wrong sessionID being used in callback, but only on one particular computer

    - by user210119
    I am writing a Python/Django web application that uses OAuth (for the TwitterAPI, not that it should matter). I am storing a session ID in my login function, and then after using OAuth to get the user's token, I try to retrieve the sessionID in my callback function. The callback function then always fails(throws an exception) because it can't find the OAuth token in the session. Through the debugger, I am able to determine that the session ID that the server is using is incorrect - it does not match the session ID that was stored in the login function. It's therefore unsurprising that the Oauth tokens were not there. The session that appears in the callback was the same one each time (until I tried deleting it - see "things I've tried below"), and it started out as an old session, with some data in it that is from a different django app running on the same server that I hadn't touched in a couple weeks. Here's the kicker: everything I described is an issue only on our production server, and only when connecting to it from my computer. Let me clarify: this only happens with my particular laptop. I can connect to the app just fine from someone else's computer. Other people cannot connect with their accounts on my computer. Furthmore, I can connect just fine to the app when it is running on my localhost using the built-in django webserver, just not to the production server. My setup: my server and local box are running= Django 1.2.0 and Python 2.6.5. My local box is running Snow Leopard and the Django webserver, the server is running Ubuntu, Apache2, and mod-wsgi. For sessions, I am using Django's default session backend (DB). Things I have tried, all to no avail: logging in with a different account, including new accounts that have never OAuthed to this app before Clearing cookies, using incognito mode, using a different web browser on my same computer. Each time, upon inspecting my cookies, the sessionID matched the sessionID in the login function and was different from the sessionID in the callback. deleting the session in the database that appears in the callback function, (the one that appeared to be old data). The callback function still fails, and the sessionID it appears to be using is now a new one using a different session backend (DB-cache, flat file, etc...) restarting the server, my computer, etc. My first question on StackOverflow, so bear with me if I didn't quite follow local conventions. I am just at a loss as to what to even look for - what are the things that could possibly be causing sessions to not work on my particular computer, and (so far!) only my particular computer?

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  • PC: Quick Freeze, then BSOD, then forced reboot, then freezes again

    - by cr0z3r
    Lately I have been experiencing a weird issue. My PC will hang for a second and then BSOD - it stays there, so I have to reboot. Once Windows starts again and I'm logged in, after 1-10min it freezes again, this time without BSOD. RECAP: 1 second freeze BSOD, hangs there I have to force-reboot Once PC rebooted, I log back into Windows second freeze between a 1-10min range, no BSOD (alternatively, I get a freeze with a constant sound/noise, no BSOD) I contacted my PC provider, who told me my graphics-card might be flawed (Quadro 4000), so I used a Quadro 2000 that they lend me. The issue still occurred. The issue now seemed to belong to a flawed RAM module. Following my provider's steps, I removed all but the first from the left column and kept using my PC for a week or so without any issues. I then added the bottom-right module, and so on, until all modules were back inside - I had no problems. Now it seemed that a simple take-out-put-back-in of the RAM modules had fixed the issue. However, after a few months, the issue was back. I redid all the RAM-swapping I had done before, and concluded that the lower-right module was flawed. My provider changed it for another, and everything was great until now. My PC froze again for barely a second, hanged on a BSOD, I rebooted it, logged-in to Windows to get a freeze (without BSOD or reboot) 40 seconds later. Something worth noting, is that every time I reboot after the BSOD, it is something within Chrome that freezes my PC (e.g. this time I clicked the "restore" button as Chrome mentioned it had exited unexpectedly - from the previous freeze obviously - and it instantly froze). Finally, the Event Viewer lists 2 critical events in the past hour as "ID: 41, Type: Kernel-Power". PC-Specs: http://i.imgur.com/VZpbr.jpg Previous Dump-files: https://dl.dropbox.com/u/716600/DumpFiles_08_2012.zip I would like to thank anybody in advance for your help. You're great. UPDATE 1: I realized that I did not mention an awkward fact about this issue. After I have gotten the 1-sec freeze followed by a BSOD, after I rebooted because the BSOD hanged, and after I logged back in to get another (this time, eternal) freeze and rebooted once again, the PC does not boot back up. The power-light is on, but my monitor says "no signal", as if the PC wouldn't really be turned on. This truly seems a like a power-related issue, doesn't it? UPDATE 2: I just got a freeze, but without BSOD. My screen froze (while on Chrome, which is starting to seem suspicious to me) with an ongoing sound/noise. I had to force-reboot my PC. I would say this is a graphics-card issue, but this issue also happened when I was using the Quadro 2000 from my provider. UPDATE 3: I just got a BSOD while trying to render something (quite heavy, actually) in 3ds Max 2012. I left the BSOD "running", as it said it was writing dump files to disk. However, the percentage number stayed at 0, so after 15 minutes I force-rebooted. I then used the software WhoCrashed (thank you Dave) which reported the following from the C:\Windows\Memory.dmp file: On Thu 22.11.2012 22:13:45 GMT your computer crashed crash dump file: C:\Windows\memory.dmp uptime: 01:05:27 This was probably caused by the following module: Unknown () Bugcheck code: 0x124 (0x0, 0xFFFFFA80275AC028, 0xF200001F, 0x100B2) Error: WHEA_UNCORRECTABLE_ERROR Bug check description: This bug check indicates that a fatal hardware error has occurred. This bug check uses the error data that is provided by the Windows Hardware Error Architecture (WHEA). This is likely to be caused by a hardware problem problem. This problem might be caused by a thermal issue. A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: Unknown . Google query: Unknown WHEA_UNCORRECTABLE_ERROR

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  • Moving from WDS to MDT + WDS - Prestaged Computer Name

    - by MSCF
    We previously used just WDS to deploy our images. WDS was setup to request approval for new machines. We used the "Name and Approve" option to name the machines as we added them. If it was pre-existing, it would just use the existing computer name from AD. Then in our unattend.xml file we had Computername=%MACHINENAME%. This picked up the name we gave it during approval and set the computer name accordingly. We are now implementing MDT to manage our images and drivers. But upon testing, we noticed it would assign random computer names. I went into the Unattend.xml for the deploy task sequence and added that value under Specialize amd64_Microsoft-Windows-Shell-Setup_neutral Computername=%MACHINENAME%. But when we try applying the image, it errors out at that point of the install. How can an MDT deployment be configured to leverage the pre-staged name? Some additional info: Error message during the imaging process: Windows could not parse or process the unattend answer file for pass [specialize]. The settings specified in the answer file cannot be applied. The error was detected while processing settings for component [Microsoft-Windows-Shell-Setup].? setuperr.log: 2014-07-22 14:02:13, Error [setup.exe] [Action Queue] : Unattend action failed with exit code 4 2014-07-22 14:02:13, Error [setup.exe] Execution of unattend GCs failed; hr = 0x0; pResults-hrResult = 0x8030000b

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  • Overheating computer

    - by Samurai Waffle
    My computer overheats somewhat frequently, usually during intense use. And by intense use I mean browsing the internet while downloading, or gaming. It even overheats on extremely old games though, Master of Orion 2, which was developed for Windows 95. My computer has a Pentium 4 Ghz processor, 2 GB of ram, and is running Windows XP. One of the symptoms it has after overheating, is that it'll turn on immediately afterwards, but won't show any video on my monitor. I usually have to wait at least 5 minutes (mostly at least 10) before I can get it to turn on and show video on my monitor. I also usually have to wiggle around the graphics card a little bit, which is the ASUS A9550 Series with 256 MB. I'm not sure exactly what is causing the computer to overheat. At first I thought it was the video card, but after I noticed it was doing it while playing Master of Orion 2, I'm not so sure, because that game can't be making the video card work all that hard. So how exactly can I pinpoint the problem? Thanks for any help provided. Edit: Okay I downloaded the programs that you specified, and will start benchmarking my system to try and pinpoint what's overheating. What is the temperature range for when it's getting to hot? Also I have an abundant amount of software experience with computers, but unfortunately not to much hardware experience.

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  • Acer Aspire ASE700-UQ660A will not respond to power button

    - by Tim R.
    This is something of a continuation of this question. I am now completely unable to boot this computer. The last time I used it, I used hibernation mode. When I needed to use it again, it would not respond at all to the power button, keyboard, or mouse. I tried: Holding down the power button for 15 seconds pressing the power button Unplugging the power cord for 30 seconds, plugging it back in, and trying again Removing the motherboard battery for over a minute and reinstalling it Before removing the motherboard battery, none of the lights on the front of the computer lit up. After reinstalling the battery and plugging the power cord back in, the light behind the power button is constantly illuminated (without even pressing the power button), but there is still no response to the power button, no fans turned on, nothing else that would indicate that it is running. System: Acer Aspire ASE700-UQ660A (Specs should be all factory defaults except:) 4 GB RAM Nvidia GeForce 8600 GT with driver version 197.45 Windows 7 Professional 64 bit

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  • HTPC/DVR computer won't go into standby

    - by Robert
    When I select Start-Turn off computer-Standby the 'turn off computer' option window closes, and then nothing else happens. I can start new applications, and Windows acts like I never selected standby. I ran it for several hours after that. If I have a TV program scheduled to record when I select standby I get a window (the Pinnacle TV software) asking if I'm sure, there are programs scheduled to record - and the computer just keeps running after I select yes, never going into standby. I added that detail as it shows the standby process is starting. [This problem also happens if a TV program is not scheduled, so the scheduler task in not running/in memory. This problem happens regardless of whether I'm not watching TV. This problem happens regardless of whether Media Center is running (it usually isn't, I'm using Pinnacle to watch TV).] I looked at "How to troubleshoot hibernation and standby issues in Windows XP" http://support.microsoft.com/kb/907477 - ACPI is enabled, and "standby" is an option in "Power Options Properties." So it appears to be setup correctly. Windows XP SP3 Media Center Edition, all current updates installed.

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  • Computer turns off unexpectedly

    - by Shahar
    My computer turns itself off unexpectedly after some time of use. It appears that this might be temperature related, but not for sure. I installed 2 tools that monitor temperature: SpeedFan and CPU Thermometer. The only definite finding is that there is a sensor (labelled temp1 in SpeedFan and CPU in CPU thermometer), which shows a temperature of 108C a second before the computer powers down. Until that moment, this sensor shows a constant temperature of 40C. I can usually reproduce the shutdown by viewing a few movies together, which cause another sensor (labelled CPU in SpeedFan) to go up to 60sC, but I do experience the problem even at times when this sensor remains low and cool. It does seem that the problem is more frequent if the computer is turned back on immediately after shutdown, but not always. I have had other hardware problems recently, which might be related: My hard disk heated up. I installed a fan on it, which worked to reduce the heat. The hard disk sensor shows around 40C. I had occasional blue screens and hard disk failures. Replacing the power supply seems to solve both these issues, but then this powerdown problem began appearing. I would appreciate any suggestions as to how to determine where the fault is, or what needs to be replaced.

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  • White Screen of Death

    - by cust0s
    The other night I updated my iTunes to the latest version (through Software Update) when I came to turn on my computer I was greeted with the dreaded white screen of death. I use an early 2008 iMac 24". I've tried the basic things, unplugging/turning off accessories, trying to boot from the install disk, reseting pram, etc, etc. Still no luck and no change what-so-ever. All I've been able to ascertain that my keyboard still works (by ejecting). I should point out that I did recently replace my Hard drive with a Western Digital Black 500GB (though the computer is well out of warrenty) and I'm a little concerned that the problem could be the screen.

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  • Computer won't boot from a bootable DVD

    - by JohnB
    My friend gave me his old computer that used to have WinXP on it. I'm trying to load Win7 on it and I thought there was something wrong because it wouldn't boot off a bootable disc, even though I setup the BIOS boot settings properly (I've done this sort of thing a million times). However, this closely related post helped me realize that I can boot off a bootable CD (WinXP), just not a DVD (Win7) Computer won’t boot from CD/DVD drive That might be the answer to my question, however, this motherboard is still pretty current technology. It's a good quality Gigabyte board, and judging from this product page, it came out in 2004. If I can't figure out a solution to my DVD boot problem, I'll have to try something like this: Boot and Install Windows from a USB thumb drive I guess it's possible that this motherboard doesn't allow booting from a DVD, but I still think that I might be missing something. It wouldn't be the DVD rom drive would it? I did try another drive and had the same results. However, I didn't try booting a DVD in the computer that the other test drive came out of, I'll do that later today. Any other advice? Thanks.

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  • Populating a drive that was formated to ntsf on seperate computer

    - by Will Love
    I recently downloaded some files that were over 4gb and wouldnt do a straight transfer to a external hd. this is all being done on a serperate computer we shall call computer1. my computer(computer2) is where im trying to get the files too. i used cmd to "Soft format" the drive to NTSF on computer1 so i could then take the drive to transfer the files to computer2. this was suppose to allow the format change without losing the files i had on there already... after the proccess was done i checked the drive on computer1 and all the old files were there and working....when i took the drive back to computer2 to transfer the files i had just downloaded from computer2 my computer...computer1:wont reconize or populate the external drive so it can give it a drive letter and function. the external drive works fine on computer1, but how do i get it to work again on computer2? when i try to populate it, i cant access the properties function in order to make permissions for everyone so it is reconized....any help would be greatfull..... also i am running windows 7 ultimate edition if that helps.

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  • Computer causing WiFi interference?

    - by Mannimarco
    I came back from college and brought my desktop computer. Family recently switched to Verizon FIOS and got a new router because of it. Unfortunately, my connection to the new wifi network is awful, with the download speeds (tested through speedtest.net) fluctuating wildly and often dropping below 1.5 Mbps. A laptop in the same room gets 20 Mbps. I've tried a new wireless card, thinking that mine got damaged in the move home but no luck. Here's where it gets weird: if I place the laptop near the computer, the laptop's download speeds often suffer greatly. Pulling the laptop away always fixes this. So now I'm under the impression that there's something in the computer (which I built a year ago and has had 0 issues up to this point) is causing an insane amount of wireless interference. Also bizarre: the upload speeds seem unaffected by this problem. On the laptop and desktop, upload speeds are generally around 5 Mpbs. Any ideas as to what could be causing this and how to test said theories would be fantastic.

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  • Mac Grey/White Screen of Death

    - by cust0s
    The other night I updated my iTunes to the latest version (through Software Update) when I came to turn on my computer I was greeted with the dreaded white screen of death. I use an early 2008 iMac 24". I've tried the basic things, unplugging/turning off accessories, trying to boot from the install disk, reseting pram, etc, etc. Still no luck and no change what-so-ever. All I've been able to ascertain that my keyboard still works (by ejecting). I should point out that I did recently replace my Hard drive with a Western Digital Black 500GB (though the computer is well out of warrenty) and I'm a little concerned that the problem could be the screen.

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  • Transferring 'Live' Documents to Another Computer

    - by waiwai933
    I was wondering if there was any OS/Application that has some support for transferring a document to another computer without having to save, transfer and then reopen. Basically, is there a way so that if I'm working on my desktop, I can click a button (or something similar) and then have the exact state of that computer/application transferred to another? For example, if I'm writing a document, is there a way to get it to computer B without saving it, putting the file on my flash drive, and having to reopen it? Edit: I just realized that this is possible through the wonderful phenomena known as cloud computing, but this is not the type of solution I'm looking for. Edit 2: I wanted to clarify: By 'save', I meant that I didn't want to have to save it to a special location, be that a (flash) drive or uploading to the web. Saving to the local hard drive is fine (and probably necessary, since technologies such as Bluetooth require the file to be saved somewhere). This is a bit inspired by a scene in Avatar, so I highly doubt that this actually exists... but if it does, I don't want to miss out.

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  • Windows Explorer slow to open networked computer, fast to navigate once opened

    - by Scott Noyes
    I open Windows Explorer and enter an IP for a computer on my home network (\\192.168.1.101). It takes 30 seconds or more to present a list of the shared folders. It does not appear to be an initial handshaking/authentication thing; even if I allow the view to load and then immediately load the same again, it is always slow. Once they appear, navigating through folders and opening files is fast. Also, navigating directly to a folder (\\192.168.1.101\My Music) is fast, even if it's the first connection since a restart. Using \\computerName instead of the IP address gives exactly the same results. Pings return in 1ms. net view \\computerName (or \ipAddress) returns the list of shared folders fast. This makes me suspect an Explorer issue rather than a network issue. Suspecting that the remote computer was being automatically indexed or something, I went into Tools-Folder Options-View and unchecked "Automatically search for network folders and printers," but that made no difference. De-selecting the "Folders" icon near the address bar makes no difference. Adding the IP address and computer name to the hosts file makes no difference. Both computers involved are laptops running Windows XP. Both have WiFi and cable adapters. Mine is not connected via cable. The result is the same whether the target is plugged in to the cable or not (although the IP address changes - 192.168.1.101 over cable, 192.168.1.103 over WiFi.) We are using DHCP assigned by the router.

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  • Coffee spilled and went inside CPU...computer not starting

    - by Harpreet
    Today coffee got spilled over my table, and some of it (very less) reached the CPU placed under the table. I think little bit of it got inside the CPU through the front face of the CPU. As that happened the fan started running very fast and made noise. I tried to restart to see if it becomes fine, but the computer didn't start again. First it gave an error of "Alert! Air temperature sensor not detected" and didn't start. Next I tried again multiple times of starting the computer but then it gave some memory error. I was not able to start the computer. Incase there's a problem in hard disk or something related to memory, is there any way we can extract our work or data? I am scared if I am not able to extract my work in case some problem occurs like that. What options would I have? Help! EDIT: I have attached the photo here and you can see the area spilt in red circle. The hard drive electronics have been affected and internal speaker may also have been affected. Any advise on cleaning and if hard drive can work? EDIT 2: Are there any professional services offered to extract data from blemished hard disk, like this one, in case I am not able to run it personally?

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  • Computer won't go into standby

    - by Robert
    When I select Start-Turn off computer-Standby the 'turn off computer' option window closes, and then nothing else happens. I can start new applications, and Windows acts like I never selected standby. I ran it for several hours after that. If I have a TV program scheduled to record when I select standby I get a window (the Pinnacle TV software) asking if I'm sure, there are programs scheduled to record - and the computer just keeps running after I select yes, never going into standby. I added that detail as it shows the standby process is starting. [This problem also happens if a TV program is not scheduled, so the scheduler task in not running/in memory. This problem happens regardless of whether I'm not watching TV. This problem happens regardless of whether Media Center is running (it usually isn't, I'm using Pinnacle to watch TV).] I looked at "How to troubleshoot hibernation and standby issues in Windows XP" http://support.microsoft.com/kb/907477 - ACPI is enabled, and "standby" is an option in "Power Options Properties." So it appears to be setup correctly. Windows XP SP3 Media Center Edition, all current updates installed.

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  • How to fix White Screen of Death after updating iTunes?

    - by cust0s
    The other night I updated my iTunes to the latest version (through Software Update) when I came to turn on my computer I was greeted with the dreaded white screen of death. I use an early 2008 iMac 24". I've tried the basic things, unplugging/turning off accessories, trying to boot from the install disk, reseting pram, etc, etc. Still no luck and no change what-so-ever. All I've been able to ascertain that my keyboard still works (by ejecting). I should point out that I did recently replace my Hard drive with a Western Digital Black 500GB (though the computer is well out of warrenty) and I'm a little concerned that the problem could be the screen.

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  • Single computer on network cannot connect to internet.

    - by user34630
    Hi All, I hope you can help me out! :) I have 3 computers and one device (Xbox) on my home network; 2 running XP and one on Vista. The computer that can't connect to the internet (XP) is old and failing, and shows no warning before it completely runs out of battery. Thus today, I started it up forgetting that I had unplugged it the night before, and it just ran out of battery entirely whilst I was using it and died. I think that before this I had been browsing the internet, but I can't remember for certain. (i.e. The problem I am having may or may not have been caused by this 'hard' power off). Anyway, now when I start the computer up it takes 5-10 minutes after logging on to display the start bar and icons. Also, I cannot browse the internet. The computer seems to connect to the network OK (I have tried both wired and wireless), but I can't visit sites and can't ping web addresses. Pinging the router fails, as does pinging another of my computers on the network. I have never encountered something like this before, and whilst I am no noob I am also not a sysadmin, haha. :( Any help is greatly appreciated, thank you for your time. P.S. I have tried a system restore (newbie move?).

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