"Can JEE Scale with the Long Tail?" (JEE under attack)

This article says JEE cannot handle a couple of million concurrent users:
http://www.socialglass.com/archives/24
Is what he says valid? Any comments?

Hi,
I dont think this is a really a valid or well-supported statement. I think the author was more just asking the question and trying to get some answers and learn from the discussion. There are many very large web applications in Java. Scaling is not a language specific problem, it requires a good architecture and application design in any language.
Also, I think that there a a lot of large web applications in many laguages besides Java. People pick the language and tools that work for them. Scripting languages work well too.
hth,
Sean

Similar Messages

Slave instance can not synchronized with the master for a long time

Hi,
Slave instance can not synchronized with the master for a long time, and the gap of LSNs between slave and master are more and more larger. The transfer bytes per second between master and slave is 118MB/s , upper limit to the ethernet card. Why???
ENVIRONMENT:
1. A network program which we called mcdb is based on BDB 4.8.30. It is used to accept get/set requests and then query data from bdb or save data to bdb.
2. mcdb implements replication with bdb replication manager api. The default start replication policy is DB_REP_ELECTION, rep ack policy is DB_REPMGR_ACKS_ONE_PEER and rep priority is 100.
3. The bdb data files, bdb log files, region files and rep files are all in the same home directory.
4. There are two instances of the mcdb are separately on two standalone servers which has no other programs. These two instances are in one replication group which can elect a master automatically.
5. The master instance is online, which has lots of requests (get, set, delete).
ACTIONS:
1. Start two mcdb instances on two servers and the two instance make a replication group. Slave has already synchronized with the master.
2. Stop the slave for a long time (more than 20 hours).
3. Start the slave instance to synchronize data with master.
RESULT:
1. the gap of LSNs between slave and master are more and more larger.
2. db_stat of master and slave:
master db_stat:
467170     Number of PERM messages not acknowledged
9245     Number of messages queued due to network delay
172415     Number of messages discarded due to queue length
25880     Number of existing connections dropped
3407     Number of failed new connection attempts
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
DB_REPMGR site information:
10.67.15.146 (eid: 0, port: 30011)
Environment configured as a replication master
331726/3574994     Next LSN to be used
0/0     Not waiting for any missed log records
328872/466092     Maximum permanent LSN
0     Next page number expected
0     Not waiting for any missed pages
0     Number of duplicate master conditions originally detected at this site
2147M     Current environment ID (2147483647)
100     Current environment priority
49     Current generation number
50     Election generation number for the current or next election
2323     Number of duplicate log records received
0     Number of log records currently queued
6768     Maximum number of log records ever queued at once
55284     Total number of log records queued
120M     Number of log records received and appended to the log (120475988)
111     Number of log records missed and requested
2147M     Current master ID (2147483647)
2     Number of times the master has changed
0     Number of messages received with a bad generation number
8505306     Number of messages received and processed
12     Number of messages ignored due to pending recovery
471869     Number of failed message sends
12M     Number of messages sent (12959945)
0     Number of new site messages received
1     Number of environments believed to be in the replication group
990543     Transmission limited
0     Number of outdated conditions detected
0     Number of duplicate page records received
0     Number of page records received and added to databases
0     Number of page records missed and requested
Startup complete
6244678     Number of transactions applied
0     Number of startsync messages delayed
1     Number of elections held
1     Number of elections won
No election in progress
0.057097     Duration of last election (seconds)
8944103     Number of bulk buffer sends triggered by full buffer
0     Number of single records exceeding bulk buffer size
5273M     Number of records added to a bulk buffer (5273592170)
10M     Number of bulk buffers sent (10490865)
0     Number of re-request messages received
0     Number of request messages this client failed to process
0     Number of request messages received by this client
slave db_stat:
0     Number of PERM messages not acknowledged
0     Number of messages queued due to network delay
0     Number of messages discarded due to queue length
1454     Number of existing connections dropped
0     Number of failed new connection attempts
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
DB_REPMGR site information:
10.67.15.147 (eid: 0, port: 30011)
Environment configured as a replication client
329544/2916048     Next LSN expected
330433/2013808     LSN of first log record we have after missed log records
329543/5500501     Maximum permanent LSN
0     Next page number expected
0     Not waiting for any missed pages
0     Number of duplicate master conditions originally detected at this site
2147M     Current environment ID (2147483647)
100     Current environment priority
49     Current generation number
50     Election generation number for the current or next election
5256M     Number of duplicate log records received (5256599432)
3925284     Number of log records currently queued
3925285     Maximum number of log records ever queued at once
4880561     Total number of log records queued
3578038     Number of log records received and appended to the log
1912297     Number of log records missed and requested
0     Current master ID
1     Number of times the master has changed
0     Number of messages received with a bad generation number
12M     Number of messages received and processed (12980442)
2     Number of messages ignored due to pending recovery
0     Number of failed message sends
1912307     Number of messages sent
0     Number of new site messages received
0     Number of environments believed to be in the replication group
0     Transmission limited
0     Number of outdated conditions detected
0     Number of duplicate page records received
0     Number of page records received and added to databases
0     Number of page records missed and requested
Startup incomplete
110568     Number of transactions applied
80     Number of startsync messages delayed
0     Number of elections held
0     Number of elections won
No election in progress
0     Number of bulk buffer sends triggered by full buffer
0     Number of single records exceeding bulk buffer size
0     Number of records added to a bulk buffer
0     Number of bulk buffers sent
0     Number of re-request messages received
0     Number of request messages this client failed to process
0     Number of request messages received by this client
Edited by: 899585 on 2013-1-4 下午10:54
Edited by: 899585 on 2013-1-4 下午10:55

Hi,
Unfortunately, this issue is beyond the level of what is supported over the forum. Performance related issues are extremely complex and require an in-depth understanding of your environment and dedicated support. In a generic sense, you can look at this as a basic queueing problem. You have a server that went down and work is still coming in. When the server gets started it is possible that it may never catch up depending on new work coming in and the rate at processing the old work.
So what would you do in this case --- one thing would be to reduce the new work coming in. In HA terms this would be slowing the master down and you can increase DB_REP_ACK_TIMEOUT for this. Another thing you could do is add fresh servers to help reduce the workload. In HA terms, this would be the equivalent of restarting the client and give it a fresh look at everything. Another thing you could do is replan the system and load balance. In HA terms, it would mean something like take a hot backup of the master and reinit a client from scratch.
If you are interested in getting a dedicated support person working on this concern, please let me know and we can move forward down that path. Just respond to the thread with your email address and I will get in contact with you so we can pursue that approach.
thanks
mike

Can somebody help ??? iPhone 3Gs is stuck with an apple logo with the long loading bar. but iTunes popup say iPhone had been restored. iOS 4.3.3 to 4.3.4 or 5

Can somebody help ???
iPhone 3Gs is stuck with an apple logo with the long loading bar. but iTunes popup say iPhone had been restored. This happens when upgrading iOS 4.3.3 to 4.3.4.

Thanks for your answer
i've checked the host files, nothing referring to apple. The device has never been jailbroken...
Is there something else i can do?

Swf files that scale with the browser

I uploaded a swf file with dreamweaver as a stand alone window and it works fine. How do I get the swf file to scale larger or smaller as the user adjusts their browser window larger and smaller? I would like to get the swf file to scale along with the browser window. I posted this in dreamweaver but was told this is an action script issue.

I found a simple solution, and I believe it is what you are looking for.
1. In Flash, go to File>Publish Settings
2. Click on the HTML Tab
3. Where is says Dimensions, select Percent
4. Though it is probably default, make sure the width and height are both set to 100.
5. Click ok then go to File>Publish
Now your movie should scale with the browser window.
If you do not have Flash, then you can simple work with this sample code below:
<object width="100%" height="100%" id="xyz" align="middle">
    <param name="allowScriptAccess" value="sameDomain" />
    <param name="allowFullScreen" value="false" />
    <param name="movie" value="xyz.swf" />
    <param name="quality" value="high" />
    <param name="bgcolor" value="#ffffff" />
    <embed src="xyz.swf" quality="high" bgcolor="#ffffff" width="100%" height="100%" name="xyz"
    align="middle" allowScriptAccess="sameDomain" allowFullScreen="false" type="application/x-shockwave-flash"
    pluginspage="http://www.macromedia.com/go/getflashplayer" />
</object>
Notice how width and height are set to "100%"? That's all you need.

Can not resize with the selection tool

can not resize with the selection tool

joc,
I believe you may have come across the Live Rectangle bug which is limited to the MAC versions starting with 10.7 and 10.8, but not 10.9 (Mavericks) or 10.10 (Yosemite). Hopefully, the bug will be fixed soon.
So a switch to Mavericks or Yosemite with a reinstallation might be the way to solve it here and now.
To get round it in each case, it is possible to Expand the Live Rectangles to get normal old fashioned rectangles, or to Pathfinder>Unite, or to use the Scale Tool or the Free Transform Tool.
A more permanent way round that is to create normal old fashioned rectangles, after running the free script created by Pawel, see this thread with download link:
https://forums.adobe.com/thread/1587587

I am planning to buy ipad 2 wifi 3g verizon carrier, will be taking it to india need to know if the same can be used with the local providers there or would the ipad be locked and restricted only to verizon

I am planning to buy ipad 2 wifi 3g verizon carrier, will be taking it to india need to know if the same can be used with the local providers there or would the ipad be locked and restricted only to verizon

I'm fairly sure the Verizon CDMA iPad 2 had no GSM sim slot. So it won't work with any other carrier except Verizon.
As far as the AT&T version goes, it should technically work but will not support 4G/LTE cellular bands.
Given iPad 2's are no longer being sold, I doubt any that could be bought would have a warranty still. Or have at most very little of it left.
Why an iPad 2? its now 3 generations behind the current one.
Perhaps an iPad 4 would be a better choice.

When I take a video with my new PowerShot ELPH 340 HS with the long axis verticle, the resulting vid

When I take a video with the long axis of my new PowerShot ELPH 340 HS verticle, the resulting video is rotated 90 degrees. Is there a way to adjust the camera or is there a piece of code that can rotate the video 90 deg. I would appreciate any suggestions.

Hi rrr317!
Thanks for posting.
Unlike still images, video will always record with the long side along the bottom and the short side vertical. To rotate a video, you will need to use video editing software.
Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.

Can I FaceTime with the first iPad?

Can I FaceTime with the first iPad?

The long answer: the original iPad does not have a camera and does not have the FaceTime app, hence you cannot do FaceTime on it.

How can I print with the black and white cartridge only?

I am trying to print using the black and white cartridge only because magenta is out of ink but I'm getting the following error message in HP Photosmart C7200 series print dialog:
The printer is out of ink.
The following ink cartridges are empty: Magenta. Replace these ink cartridges to resume printing.
How can I print with the black and white cartridge only?
Mac OSX 10.7.3
HP Photosmart C7280 (7200 series)
This question was solved.
View Solution.

I am absolutely disgusted by this; clearly a scam from HP to make more money by selling extra ink cartridges!! I will make sure to never buy any products from the shoddy rip off merchants at HP ever again!!
You should be ashamed!!

I have LabView but I do not have the Calibration and Configuration Palette,and I could not download it, how can I download it or if i cannot,can I work with the NI-DAQ Calibration_1200?

I have read in a tutorial for the board 1200 that I can calibrate it with the Calibration and Configuration Palette in LabVIEW, but I do not have them and I could not download it to access its libraries, so I can only download the NI-DAQ software,What's my best choice and if it is to download the palette with its libraries, how can download it with them?I'd appreciate your answers

If you wish to use your 1200 device in LabVIEW, you must download and install NI-DAQ. When you install NI-DAQ, it will ask you if you would like to install support for LabVIEW. By installing this support, you will then have access to the DAQ pallette in LabVIEW. The DAQ pallette requires that you have NI-DAQ installed.
For more information on installing and using your device, you can refer to the DAQ Quick Start Guide. You can download it from:
http://digital.ni.com/manuals.nsf/14807683e3b2dd8f8625677b006643f0/0eca53fe80911b1f862568560068295d
Regards,
Erin

It's so annoying!! I have created a new Apple ID but after I click verify it just goes back to the previous page!!! It''s really frustrating I have tried for more than 4H, and the problem is not about the apple ID. I can download apps with the apple ID, w

It's so annoying!! I have created a new Apple ID but after I click verify it just goes back to the previous page!!! It''s really frustrating I have tried for more than 4H, and the problem is not about the apple ID. I can download apps with the apple ID, which means IMessage is the problem! I restarted my iPad, I logged in and out of the apple ID in the store, AND YET IT STILL WON'T WORK, PLEASE HELP!

Hi Vmanfromusa!
It sounds like you are having an issue with activating your iMessage app on your iPad. An article outlining some troubleshooting steps for this issue can be found here:
iOS: Troubleshooting FaceTime and iMessage activation
http://support.apple.com/kb/ts4268
Thanks for using the Apple Support Communities. Have a good one!
-Braden

Hi can you help with the following panic attack report,

hi can you help with the following panic attack report, macbook pro OS 10.7.3
Interval Since Last Panic Report: 157997 sec
Panics Since Last Report:          1
Anonymous UUID:                    7ADCF50C-CC18-405E-9D5C-03325D3A83FA
Thu Mar 29 05:37:28 2012
panic(cpu 0 caller 0xffffff80002c266d): Kernel trap at 0xffffff800021d905, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0xffffef801a845328, CR3: 0x0000000019452019, CR4: 0x00000000000606e0
RAX: 0xffffff801a8450d8, RBX: 0xffffff800e79f340, RCX: 0xffffff801a8450d8, RDX: 0xffffef801a8450d8
RSP: 0xffffff80a4623e90, RBP: 0xffffff80a4623eb0, RSI: 0x0000000020c85580, RDI: 0x0000000000000001
R8: 0xffffff80008bd890, R9: 0xffffff80058aeac8, R10: 0xfffffe80539a9928, R11: 0x0008000000053d89
R12: 0xffffff800e79f370, R13: 0xffffff8000846288, R14: 0xffffff801a8450c0, R15: 0x0000000000000001
RFL: 0x0000000000010206, RIP: 0xffffff800021d905, CS: 0x0000000000000008, SS: 0x0000000000000010
CR2: 0xffffef801a845328, Error code: 0x0000000000000002, Faulting CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff80a4623b50 : 0xffffff8000220702
0xffffff80a4623bd0 : 0xffffff80002c266d
0xffffff80a4623d70 : 0xffffff80002d7a1d
0xffffff80a4623d90 : 0xffffff800021d905
0xffffff80a4623eb0 : 0xffffff800021daad
0xffffff80a4623ee0 : 0xffffff800023caa9
0xffffff80a4623f10 : 0xffffff800023cb36
0xffffff80a4623f30 : 0xffffff80005a3258
0xffffff80a4623f60 : 0xffffff80005ca448
0xffffff80a4623fb0 : 0xffffff80002d7f39
BSD process name corresponding to current thread: SophosAntiVirus
Mac OS version:
11D50b
Kernel version:
Darwin Kernel Version 11.3.0: Thu Jan 12 18:47:41 PST 2012; root:xnu-1699.24.23~1/RELEASE_X86_64
Kernel UUID: 7B6546C7-70E8-3ED8-A6C3-C927E4D3D0D6
System model name: MacBookPro8,3 (Mac-942459F5819B171B)
System uptime in nanoseconds: 5720232329361
last loaded kext at 5694112402758: com.apple.iokit.IOSCSIBlockCommandsDevice          3.0.3 (addr 0xffffff7f807a3000, size 86016)
last unloaded kext at 248390619372: com.apple.driver.AppleUSBUHCI          4.4.5 (addr 0xffffff7f80a4e000, size 65536)
loaded kexts:
com.sophos.kext.sav          7.3.0
com.apple.driver.AppleUSBCDC          4.1.15
com.apple.driver.AppleHWSensor          1.9.4d0
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AudioAUUC          1.59
com.apple.driver.AppleUpstreamUserClient          3.5.9
com.apple.driver.AppleMCCSControl          1.0.26
com.apple.driver.AppleHDA          2.1.7f9
com.apple.driver.AppleMikeyDriver          2.1.7f9
com.apple.driver.AppleIntelHD3000Graphics          7.1.8
com.apple.driver.AGPM          100.12.42
com.apple.kext.ATIFramebuffer          7.1.8
com.apple.driver.SMCMotionSensor          3.0.1d2
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.driver.AppleSMCLMU          2.0.1d2
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AudioIPCDriver          1.2.2
com.apple.driver.ACPI_SMC_PlatformPlugin          4.7.5d4
com.apple.driver.AppleMuxControl          3.0.16
com.apple.driver.AppleLPC          1.5.3
com.apple.ATIRadeonX3000          7.1.8
com.apple.driver.AppleUSBTCButtons          225.2
com.apple.driver.AppleUSBTCKeyboard          225.2
com.apple.driver.AppleIRController          312
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          33
com.apple.iokit.SCSITaskUserClient          3.0.3
com.apple.iokit.IOAHCIBlockStorage          2.0.1
com.apple.driver.AppleUSBHub          4.5.0
com.apple.driver.AppleFWOHCI          4.8.9
com.apple.driver.AirPort.Brcm4331          513.20.19
com.apple.iokit.AppleBCM5701Ethernet          3.0.8b2
com.apple.driver.AppleEFINVRAM          1.5.0
com.apple.driver.AppleAHCIPort          2.2.0
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleUSBEHCI          4.5.8
com.apple.driver.AppleACPIButtons          1.4
com.apple.driver.AppleRTC          1.4
com.apple.driver.AppleHPET          1.6
com.apple.driver.AppleSMBIOS          1.7
com.apple.driver.AppleACPIEC          1.4
com.apple.driver.AppleAPIC          1.5
com.apple.driver.AppleIntelCPUPowerManagementClient          167.3.0
com.apple.nke.applicationfirewall          3.2.30
com.apple.security.quarantine          1.1
com.apple.driver.AppleIntelCPUPowerManagement          167.3.0
com.apple.iokit.IOSCSIBlockCommandsDevice          3.0.3
com.apple.iokit.IOUSBMassStorageClass          3.0.1
com.apple.kext.triggers          1.0
com.apple.driver.AppleAVBAudio          1.0.0d11
com.apple.driver.DspFuncLib          2.1.7f9
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.iokit.IOSurface          80.0
com.apple.iokit.IOFireWireIP          2.2.4
com.apple.iokit.IOBluetoothSerialManager          4.0.3f12
com.apple.iokit.IOSerialFamily          10.0.5
com.apple.iokit.IOAVBFamily          1.0.0d22
com.apple.driver.AppleHDAController          2.1.7f9
com.apple.iokit.IOHDAFamily          2.1.7f9
com.apple.iokit.IOAudioFamily          1.8.6fc6
com.apple.kext.OSvKernDSPLib          1.3
com.apple.driver.ApplePolicyControl          3.0.16
com.apple.driver.AppleSMC          3.1.1d8
com.apple.driver.IOPlatformPluginFamily          4.7.5d4
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.AppleGraphicsControl          3.0.16
com.apple.driver.AppleBacklightExpert          1.0.3
com.apple.iokit.IONDRVSupport          2.3.2
com.apple.kext.ATI6000Controller          7.1.8
com.apple.kext.ATISupport          7.1.8
com.apple.driver.AppleIntelSNBGraphicsFB          7.1.8
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com.apple.driver.BroadcomUSBBluetoothHCIController          4.0.3f12
com.apple.driver.AppleUSBBluetoothHCIController          4.0.3f12
com.apple.iokit.IOBluetoothFamily          4.0.3f12
com.apple.driver.AppleThunderboltDPInAdapter          1.5.9
com.apple.driver.AppleThunderboltDPAdapterFamily          1.5.9
com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.1
com.apple.driver.AppleUSBMultitouch          227.1
com.apple.iokit.IOUSBHIDDriver          4.4.5
com.apple.driver.AppleUSBMergeNub          4.5.3
com.apple.driver.AppleUSBComposite          4.5.8
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.0.3
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com.apple.iokit.IODVDStorageFamily          1.7
com.apple.iokit.IOCDStorageFamily          1.7
com.apple.driver.XsanFilter          403
com.apple.iokit.IOAHCISerialATAPI          2.0.1
com.apple.iokit.IOSCSIArchitectureModelFamily          3.0.3
com.apple.driver.AppleThunderboltNHI          1.3.2
com.apple.iokit.IOThunderboltFamily          1.7.4
com.apple.iokit.IOUSBUserClient          4.5.8
com.apple.iokit.IOFireWireFamily          4.4.5
com.apple.iokit.IO80211Family          412.2
com.apple.iokit.IOEthernetAVBController          1.0.0d5
com.apple.iokit.IONetworkingFamily          2.0
com.apple.iokit.IOAHCIFamily          2.0.7
com.apple.iokit.IOUSBFamily          4.5.8
com.apple.driver.AppleEFIRuntime          1.5.0
com.apple.iokit.IOHIDFamily          1.7.1
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          177.3
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          331.3
com.apple.iokit.IOStorageFamily          1.7
com.apple.driver.AppleKeyStore          28.18
com.apple.driver.AppleACPIPlatform          1.4
com.apple.iokit.IOPCIFamily          2.6.8
com.apple.iokit.IOACPIFamily          1.4
Model: MacBookPro8,3, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.2 GHz, 4 GB, SMC 1.70f5
Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 1024 MB
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 384 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.100.98.75.19)
Bluetooth: Version 4.0.3f12, 2 service, 18 devices, 2 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: TOSHIBA MK7559GSXF, 750.16 GB
Serial ATA Device: MATSHITADVD-R   UJ-898
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 3
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 5
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 8
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0245, 0xfa120000 / 4
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3

Get rid of Sophos Anti-Virus software you have installed. Use the uninstaller or:
Uninstalling Software: The Basics
Most OS X applications are completely self-contained "packages" that can be uninstalled by simply dragging the application to the Trash. Applications may create preference files that are stored in the /Home/Library/Preferences/ folder. Although they do nothing once you delete the associated application, they do take up some disk space. If you want you can look for them in the above location and delete them, too.
Some applications may install an uninstaller program that can be used to remove the application. In some cases the uninstaller may be part of the application's installer, and is invoked by clicking on a Customize button that will appear during the install process.
Some applications may install components in the /Home/Library/Applications Support/ folder. You can also check there to see if the application has created a folder. You can also delete the folder that's in the Applications Support folder. Again, they don't do anything but take up disk space once the application is trashed.
Some applications may install a startupitem or a Log In item. Startupitems are usually installed in the /Library/StartupItems/ folder and less often in the /Home/Library/StartupItems/ folder. Log In Items are set in the Accounts preferences. Open System Preferences, click on the Accounts icon, then click on the LogIn Items tab. Locate the item in the list for the application you want to remove and click on the "-" button to delete it from the list.
Some software use startup daemons or agents that are a new feature of the OS. Look for them in /Library/LaunchAgents/ and /Library/LaunchDaemons/ or in /Home/Library/LaunchAgents/.
If an application installs any other files the best way to track them down is to do a Finder search using the application name or the developer name as the search term. Unfortunately Spotlight will not look in certain folders by default. You can modify Spotlight's behavior or use a third-party search utility, Easy Find, instead. Download Easy Find at VersionTracker or MacUpdate.
Some applications install a receipt in the /Library/Receipts/ folder. Usually with the same name as the program or the developer. The item generally has a ".pkg" extension. Be sure you also delete this item as some programs use it to determine if it's already installed.
There are many utilities that can uninstall applications. Here is a selection:
AppZapper
Automaton
Hazel
CleanApp
Yank
SuperPop
Uninstaller
Spring Cleaning
Look for them at VersionTracker or MacUpdate.
For more information visit The XLab FAQs and read the FAQ on removing software.

Hello applecare can you help with the macbook pro i did the update the last one and safari doesn't open anything .. what should i do ?

hello applecare can you help with the macbook pro i did the update the last one and safari doesn't open anything .. what should i do ?

Hello John...
You may have a Safari third party add on installed that was compatible with the previous version of Safari but not 5.1. Try troubleshooting > Safari: Unsupported third-party add-ons may cause Safari to unexpectedly quit or have performance issues
FYI... this is a user to user forum. If you can't resolve the issue, information for contacting AppleCare here.

Is there a way to select MULTIPLE tabs and then copy ALL of the the URLs and titles/or URLs+titles+HTML links? This can be done with the Multiple Tab Handler add on; However, I prefer to use a Firefox feature rather than download an add on. Thanks.

Currently, I can copy ONE tab's url and nothing else (not its name). Or I can bookmark all tabs that are open. However, I'd like to have the ability to select multiple tabs and then copy ALL of the the URLs AND their titles/or copy ALL of the URLs+titles+HTML links? This can be done with the Multiple Tab Handler add on; when I download the add on, I get a message saying that using the add on will disable Firefox's tab features. I prefer to use Firefox features rather than download and use an add on. Is there a way to do this without an add on?

Hi LRagsdale517,
You should definitely be able to upload multiple files by Shift-clicking or Ctrl-clicking the files you want to upload. Just to make sure you don't have an old version of the service cached, please clear the browser cache and then log in to https://cloud.acrobat.com/files. After clicking the File Upload icon in the upper-right corner, you should be able so select multiple files for upload.
Please let us know how it goes.
Best,
Sara

How can I change my iCloud account? I just changed my ID Apple so I can't enter with the old one.

I just changed my ID Apple so I can't enter with the old one in the iColud account.
I thought the ID Apple linked to iCloud would have been changed automatically, but not.
Can anybody help me?

iCloud FAQs
Creating an iCloud account: Frequently Asked Questions
iCloud Help
http://help.apple.com/icloud/?lang=en

"Can JEE Scale with the Long Tail?" (JEE under attack)

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