Memory leak on the native side

Hello,
I am hoping someone here can offer some troubleshooting advice, as I am completely stumped. I am running JBoss 5.1 with JDK 1.6_u18 (same problem with u17 and u16 too)
- 32-bit, Linux (RHEL 5).
- min/max heap setting of 1024M
- permgen max of 256M
- Thread stack size of 128K
- No JNI
My problem: The memory footprint of the JVM slowly grows until it hits the 3G OS limit. This takes about 8 hours under moderate load. At this time, it of course dies as it has no more addressable memory left.
Here is the strange part: I have used every possible memory debugging tool (jmap, Eclipse MAT, etc) and nothing looks out of the ordinary in my Java heap. Thread count stays at a reasonable 350 threads, Java heap size stabilizes at about 500M. For the first hour or so, the JVM footprint stays at about 1.7G, which makes sense. After that it starts to slowly grow until in exceeds the 3G limit.
What can I do to figure out where the leak is occurring? There is clearly some native resource that is being allocated but not freed. As I indicated, all the Java analysis tools report a healthy, stable heap and thread count.
Thanks in advance.
Jon

Thanks for the reply.
I have confirmed with -verbose:jni that the only JNI libraries getting loaded are those belonging to the JDK. My application does make heavy use of the ProcessClassLoader from the Jboss JBPM library, but classes all seem to be unloading normally, and my Permgen usage stays very low and stable. Is there anything I should look at in regards to this class loader? I have tried both a lack of GC parameters and specified the concurrent mark sweep collector, with the same results.

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My en so weak ,so I try my best to let you understand my mean...
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Thanks
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Message was edited by:
user623248

I setup logdir,datadir and envdir into different directories with
the functions set_data_dir and set_log_dir.I created two directories
under the datadir and created more than 100 sub-directories
respectively for the two dir, where the 2000 databases located.By the way, even though it doesn't seem likely to be the cause of the
memory leak, you should still fix this illegal usage of subdirectories
before we get much further investigating. We might as well eliminate
any possible source of problem, no matter how unlikely it seems.
Also, just as an experiment, I would be very tempted to try running
again without using any separate directories. In other words, don't
call set_data_dir or set_log_dir at all, and just let everything be
put into the one single directory. If that changes the results, that
will be a big clue to help us know where to look for the problem.
I'am writting a demo , but it take time.
i will reply later .Thank you. Take your time -- we'll be here.
Alan Bram
Oracle

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Hi,
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          16 GB RAM
Video Information:
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          AMD Radeon HD 6750M - VRAM: 1024 MB
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0
          AirPlay: Version: 1.9
          AppleAVBAudio: Version: 2.0.0
          iSightAudio: Version: 7.7.3
Startup Items:
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System Software:
          OS X 10.9 (13A603) - Uptime: 2 days 22:34:21
Disk Information:
          OWC     Mercury Pro RAID disk0 : (2 TB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    JumboZero (disk0s2) /Volumes/JumboZero: 2 TB (25.5 GB free)
          WD      My Book         1105 disk6 : (4 TB)
                    EFI (disk6s1) <not mounted>: 209.7 MB
                    4TB Beast (disk6s2) /Volumes/4TB Beast: 4 TB (14.97 GB free)
          TOSHIBA MK7559GSXF disk2 : (750.16 GB)
                    EFI (disk2s1) <not mounted>: 209.7 MB
                    Flux (disk2s2) /: 749.3 GB (301.59 GB free)
                    Recovery HD (disk2s3) <not mounted>: 650 MB
          MATSHITADVD-R   UJ-898
USB Information:
          Apple Inc. FaceTime HD Camera (Built-in)
          Apple, Inc. Keyboard Hub
                    Logitech USB-PS/2 Optical Mouse
                    Apple, Inc Apple Keyboard
          Apple Inc. BRCM2070 Hub
                    Apple Inc. Bluetooth USB Host Controller
          Apple Inc. Apple Internal Keyboard / Trackpad
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          0x30E1 Oxford IDE Device 00 400mbit - 400mbit max
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                    Terabyte (disk4s2) /Volumes/Terabyte: 999.86 GB (13.63 GB free)
          Other World Computing Oxford ATA Device 00 800mbit - 800mbit max
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Thunderbolt Information:
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Kernel Extensions:
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          com.TrustedData.driver.VendorSpecificType00          (1.7.0)
          com.attotech.driver.ATTOiSCSI          (3.4.1b1)
          com.paceap.kext.pacesupport.snowleopard          (5.9)
          com.motu.driver.FireWireAudio          (1.6
Problem System Launch Daemons:
          [failed] com.apple.AOSNotificationOSX.plist
          [failed] com.apple.installd.plist
          [failed] com.apple.softwareupdated.plist
          [failed] com.apple.wdhelper.plist
Problem System Launch Agents:
Launch Daemons:
          [loaded] com.adobe.fpsaud.plist
          [loaded] com.adobe.SwitchBoard.plist
          [loaded] com.attotech.iscsid.plist
          [loaded] com.datarobotics.ddservice64d.plist
          [loaded] com.klieme.TimeMachineScheduler.plist
          [loaded] com.novation.automap.pluginhelper.plist
          [loaded] com.paceap.eden.licensed.plist
          [loaded] org.macosforge.xquartz.privileged_startx.plist
          [loaded] PACESupport.plist
Launch Agents:
          [not loaded] com.adobe.AAM.Updater-1.0.plist
          [loaded] com.adobe.CS5ServiceManager.plist
          [loaded] com.Logitech.Control Center.Daemon.plist
          [loaded] com.motu.MOTULauncher.plist
          [loaded] org.macosforge.xquartz.startx.plist
User Launch Agents:
          [loaded] com.adobe.AAM.Updater-1.0.plist
          [loaded] com.adobe.ARM.[...].plist
          [failed] com.google.GoogleContactSyncAgent.plist
          [loaded] com.leadertech.PowerRegister.LGT2.c59807af95d106639fca8f10676ced62.plist
          [failed] com.logmein.rescue.sa.0372bc40-2c4a-4755-a5a8-ae3c68b59ab8.plist
          [failed] com.logmein.rescue.sa.2449ad28-4b5d-4836-b3d5-7adfb1c387c7.plist
          [loaded] com.valvesoftware.steamclean.plist
User Login Items:
          CheatSheet
          Activity Monitor
          Clipboard History
          VMware Fusion Helper
          MagicMenu
          Dropbox
          Android File Transfer Agent
          Terminal
          Console
          Matrox PowerDesk
          Dictionary
          ShuttleHelper
          AutomapServer
          DDAssist
3rd Party Preference Panes:
          Flash Player
          Flip4Mac WMV
          FUSE for OS X (OSXFUSE)
          Logitech Control Center
          M-Audio MIDISPORT 8x8
          TimeMachineScheduler
          Tuxera NTFS
Internet Plug-ins:
          AdobePDFViewer.plugin
          AdobePDFViewerNPAPI.plugin
          Default Browser.plugin
          Flash Player.plugin
          FlashPlayer-10.6.plugin
          Flip4Mac WMV Plugin.plugin
          iPhotoPhotocast.plugin
          JavaAppletPlugin.plugin
          QuickTime Plugin.plugin
          RealPlayer Plugin.plugin
User Internet Plug-ins:
Bad Fonts:
          None
Time Machine:
          Skip System Files: NO
          Mobile backups: OFF
          Auto backup: NO
          Volumes being backed up:
                    Payload: Disk size: 2 TB Disk used: 1.82 TB
                    Flux: Disk size: 749.3 GB Disk used: 447.7 GB
          Destinations:
                    Drobo [Local] (Last used)
                    Total size: 17.59 TB
                    Total number of backups: 2
                    Oldest backup: 2013-03-04 17:05:27 +0000
                    Last backup: 2013-10-22 13:23:41 +0000
                    Size of backup disk: Excellent
                              Backup size 17.59 TB > (Disk size 2.75 TB X 3)
Top Processes by CPU:
             100%          com.apple.internetaccounts
              10%          Activity Monitor
               9%          Transmission
               3%          WindowServer
               3%          sysmond
               1%          EtreCheck
               1%          Dock
               1%          Mail
               0%          configd
               0%          powerd
Top Processes by Memory:
          2.43 GB            Mail
          426 MB             com.apple.internetaccounts
          115 MB             Finder
          98 MB              Transmission
          98 MB              CVMCompiler
          49 MB              Adium
          49 MB              mds_stores
          49 MB              WindowServer
          49 MB              Console
          33 MB              mds
Virtual Memory Statistics:
          22 MB              Free RAM
          1.91 GB            Active RAM
          1.90 GB            Inactive RAM
          2.07 GB            Wired RAM
          9.39 GB            Page-ins
          416 MB             Page-outs

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current build?

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us know if you face this issue with this build.

The Security ID is not valid causes memory leak in Ldap

Hi, all:
We are using the Novell LDAP Provider to allow our server application
be configured in LDAP mode. One of our clients is experiencing a memory
leak and we believe that the problem could be related to a "The Security
ID is not valid" error. When he changes to native Active Directory mode
the memory leak dissapears (he still gets the "Security ID" error, but
all works fine). So, we think that the problem caused by the "Security
ID" error is affecting the Novell Ldap Provider library. He is using a
Windows 2008 R2 platform.
My question is: Do you know if these kind of errors are properly
handled so that resources are released?
We are using the 2.1.10.1 version of the library.
Many thanks for you help,
Luis
luixrodix
luixrodix's Profile: http://forums.novell.com/member.php?userid=107647
View this thread: http://forums.novell.com/showthread.php?t=435894

ab;2091346 Wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Have the exact error message? Is it safe to assume you are querying
> MAD
> and not eDirectory? I make that assumption because you mentioned
> SIDs.
>
> Good luck.
>
> Yes the message is: "The Security ID structure is invalid". It is the
> error 1337 of Windows and cannot be fixed manually since SIDs cannot be
> modified manually.
>
>
> When the client has configured our tool as Active Directory via LDAP
> (using the Novell Ldap library) the error is not logged anywhere (that's
> another reason for thinking that the library is not handling the error
> correctly) and the application has memory leaks everytime the AD server
> is queried, but when they use the same Active Directory but in a pure AD
> configuration (using System.DirectoryServices and Windows API directly)
> the error is logged and the memory of the application remains stable.
>
> I asked the client to fix the Security ID problem, trying to find the
> user(s) whose SID are wrong and re-creating them, but if the Novell.Ldap
> library is not handling this error correctly the potential problem is
> still there.
>
>
>
>
>
> On 03/30/2011 08:36 AM, luixrodix wrote:
> >
> > I mean, everytime a query is sent to the LDAP server an Invalid SID
> is
> > reported, and some resources are not released. We think that the
> problem
> > could be in the LDAP Novell library.
> >
> >
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luixrodix
luixrodix's Profile: http://forums.novell.com/member.php?userid=107647
View this thread: http://forums.novell.com/showthread.php?t=435894

Does the 3dpc line plot have a memory leak? (ver 8.6.1)

I have a very large application with a very small memory leak and the 3dpc line plot appears to be the most likely candidate.
I create a line plot of data (100-200 points of XYZ) pass this to a Create 3dpc_surfaceplot:xctlcreate.vi in a loop (updated at a few hz).
This code appears to grow in memory slowly over time (not at a regular pace sometimes a garbage collector must kick in). Is this possible, is there anything I have to do to use this function in a loop, there is no help file provided for this vi.
Can I avoide this situation (I am having trouble replicating te out of memory my client is seeing but again this is the most likely cause)?
Paul Falkenstein
Coleman Technologies Inc.
CLA, CPI, AIA-Vision
Labview 4.0- 2013, RT, Vision, FPGA

Hi Paul,
Thank you for bring this to our attention. Do you have a small piece of code that exhibits this memory leak? If so, can you please it so that I can try to reproduce the issue here? If I can, then I can report the issue to R&D for further investigation.
Aaron P
National Instruments
Applications Engineer
http://www.ni.com/support

Memory Leak when I get the SP return refcursor by oracle ODBC driver:

Oracle server:ＨＰ－Ｕｎｉｘ
Oracle Version: 9.2.0.6.0
Application Server: windows2003
Develop tool ： VC++;
Question:
when I get the return refcursor by OLEDB.Oracle, there is not any memory leak and work well. But when I change the driver to ODBC Oralce in OraHome92"
there will be an 56k memory leak.
And in the other hand if I call an store precedure without return ref. Both driver /way can work well.
Can you give me the advice? thanks a lot.
Code such as:
_ConnectionPtr m_AdoConnection;
_CommandPtr pcmd = NULL;
_RecordsetPtr sp_rs = NULL;
_bstr_t bstrConstruct = _bstr_t("DSN=test;Uid=test;Pwd=test;PLSQLRSet=1");
HRESULT hr = CoCreateInstance(__uuidof(Connection),NULL,CLSCTX_INPROC_SERVER,__uuidof(_ConnectionPtr),(LPVOID *)&m_AdoConnection);
if (FAILED (hr) ) throw hr ;
m_AdoConnection->PutCursorLocation(adUseClient) ;
m_AdoConnection->IsolationLevel = adXactSerializable;
m_AdoConnection->Mode = adModeShareExclusive;
bstr_t bstrEmpty(L"") ;
m_AdoConnection->Open (bstrConstruct, bstrEmpty, bstrEmpty, -1) ;
SAFE_CALL(m_spObjectContext->CreateInstance(__uuidof(Command),__uuidof(_CommandPtr),(LPVOID *)&pcmd));
if(pcmd == NULL)
throw CAtlExceptionEx(E_POINTER,"pcmd is NULL");
pcmd->CommandText = _bstr_t(L"wec_pkg_spl.wec_proc_spl_check");
pcmd->CommandType = adCmdStoredProc;
_bstr_t id = _bstr_t("65650000");
pcmd->Parameters->Append(pcmd->CreateParameter(_bstr_t(L"id"),DataTypeEnum(adVarChar),adParamInput,2000,_variant_t(id)));
pcmd->Parameters->Append(pcmd->CreateParameter(_bstr_t(L"errcode"),DataTypeEnum(adNumeric),adParamOutput,4));
pcmd->Parameters->Append(pcmd->CreateParameter(_bstr_t(L"errdescription"),DataTypeEnum(adVarChar),adParamOutput,2000));
pcmd->ActiveConnection = sp_con.m_AdoConnection;
sp_rs = pcmd->Execute(NULL,NULL,adCmdStoredProc);
pcmd->Release;
sp_rs->Close();
if (m_AdoConnection->State == adStateOpen)
m_AdoConnection->Close();
wec_pkg_spl.wec_proc_spl_check arguments:
id          varchar2     in
flowpaths     ref cursor     out
errcode          number          out
errdescription     varchar2     out
Message was edited by:
[email protected]

I'm using the oracle ODBC driver 8.05.10 with MFC and client version 8.0.5. In my experience you can't prevent memory leaks with that or earlier versions of the ODBC driver. Client patchkits or service packs for NT or the Visual Studio doesn't solve the problem.
The following code will result in a memory leak with the oracle driver. With every expiration of the timer the leak will grow.
void CTestOdbcOracleDriverDlg::OnTimer(UINT nIDEvent)
TCHAR errString[255];
//open the database with class CDatabase
//use of CRecordset
TRY {
//my table name is AL_ALARME_LOG
pMyRecordset->Open(CRecordset::dynaset,"SELECT * FROM AL_ALARME_LOG",CRecordset::none);
//do something with the data
Sleep(0);
pMyRecordset->Close();
CATCH_ALL(error) {
error->GetErrorMessage(errString,255);
DELETE_EXCEPTION(error);
END_CATCH_ALL
CDialog::OnTimer(nIDEvent);
The same code with the Microsoft ODBC driver
doesn't cause memory leaks.
Andreas ([email protected])

Memory leak on the native side

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