Detecting a memory leak in a process running on Solaris 5.7
Hi,
Iam running my application on solaris 5.7 platform.
I can see clear memory leak in that process.
Is there any tool or in-built functionality on solaris 5.7 to detect/fix that leak.
Thanks in advance,
Avvaru
Thanks for the reply. I already turned it off in both Safari and Spotlight preferences. However the problem persists. The process still runs, and from time to time it decides to leak all the memory as well. I really can't understand what the reason might be.
To be clear, in Safari-->Preferences-->Search-->Smart search field-->"Include Spotlight Suggestions" is un-checked. In Spotlight preferences all three "Spotlight Suggestions", "Bookmarks & History" and "Bing Web Searches" are un-checked. Process still runs under Spotlight as can be seen here:
After the last post I let it run for a while when it happened again, and below is just before i terminated it. Look at the memory usage!
Similar Messages
-
Memory leak in WLS6.1 sp3 on Solaris?
We are running WLS 6.1 sp3 on Solaris 8 using Sun's 1.3.1 JVM with BEA's
JDriver to connect to Oracle (8.1.7). We have set the JVM to a maximum heap
of 512M (-Xms256m -Xmx512m).
The issue is that we are now seeing (via pmap) the resident memory growing
to ~1GB. Yet, the WLS management console is reporting memory usage of ~200M.
So, if we are to believe WLS, then the JVM (or some native library) is
chewing up the extra memory.
Having examined the results of "pmap -x <pid>", I see the heap (and some
anon) mem/file are quite large.
Address Kbytes Resident Shared Private Permissions Mapped File
00026000 418912 416096 - 416096 read/write/exec [ heap ]
D8C00000 524288 447928 - 447928 read/write/exec [ anon ]
total Kb 1083832 981136 37960 943176
Questions:
- Are there any known memory leaks with 6.1 sp3 on Solaris?
- Should it be possible for pmap's value of "heap" to grow larger than the
"Xms" setting? We have observed this recently, but the numbers above don't
reflect this.
- Any idea what the "anon" is or how to determine what it is?
- Do you know of any tools that might help me determine what is using that
memory or what is in it?
Any suggestions will be greatly appreciated...
Thanks in advance,
ErikIf you set -Xmx512m then the java heap will grow no larger than 512MB.
WLS is reporting the size of the java heap. (It is a java program after
all and doesn't know a lot about what native code might be doing.)
My first thought is try running with Oracle's thin (type-4) driver.
Since this is java code, it will use the java heap. If the memory usage
drastically changes, then you can point the finger at the jDriver.
Are you using any other native code / libraries?
-- Rob
Erik Westland wrote:
We are running WLS 6.1 sp3 on Solaris 8 using Sun's 1.3.1 JVM with BEA's
JDriver to connect to Oracle (8.1.7). We have set the JVM to a maximum
heap
of 512M (-Xms256m -Xmx512m).
The issue is that we are now seeing (via pmap) the resident memory growing
to ~1GB. Yet, the WLS management console is reporting memory usage of
~200M.
So, if we are to believe WLS, then the JVM (or some native library) is
chewing up the extra memory.
Having examined the results of "pmap -x ", I see the heap (and some
anon) mem/file are quite large.
Address Kbytes Resident Shared Private Permissions Mapped File
00026000 418912 416096 - 416096 read/write/exec [ heap ]
D8C00000 524288 447928 - 447928 read/write/exec [ anon ]
total Kb 1083832 981136 37960 943176
Questions:
- Are there any known memory leaks with 6.1 sp3 on Solaris?
- Should it be possible for pmap's value of "heap" to grow larger than the
"Xms" setting? We have observed this recently, but the numbers above don't
reflect this.
- Any idea what the "anon" is or how to determine what it is?
- Do you know of any tools that might help me determine what is using that
memory or what is in it?
Any suggestions will be greatly appreciated...
Thanks in advance,
Erik -
Hi,
we are running a web application with Tomcat 4.1.27 on HP-UX 11i under HP-JVM 1.4.2_05.
We have major problem, that the application suddenly starts to allocated the whole memory (6GB) and the server stops running because the JVM is busy doing GCs. We don`t get an out of memory exception, but after 300sec or more doing major-gc, only about 100mb memory is freed, which is allocated again very very fast.
I tried -verbosegc and the application was profiled with jprobe on hp-ux environmen tand with optimizeit on windows environment. With the profling tools we didn`t find any memory leaks. We even used verbosegc in production environment, the server runs fine for days spending about 0.09 seks for minor GCs and it allocates about 1gb(256m for Eden) of 6gb. But suddenly the server starts to do minor gcs about 2 to 4 seks and after a few minutes the whole memory is allocated and the vm is busy doing major GCs. In the log-files, which are very detailed, we can`t find any coherency with the suddenly appearing GCs.
Any approach to solve this problem?I`ve found it:
I have to use -Xeprof with the following option:
"time_on=sigusr1|sigusr2 (SDK 1.4.1 and later)
Specifies which signal will cause profiling to begin (profile data collection). Please be aware that the application or the VM may already be using the sigusr signals for their own purposes; please check the documentation. Specifying a signal and a timeout (see above) at the same time is possible by repeating the time_on option. Only one of the two signals can be declared to use as the signal to start profiling. During the application's run, the specified signal can be delivered to the Java� process multiple times."
But i have no idea how to define a signal which causes the profiling to begin.
What is a sigusr signal? And how to specify this signal?
Are these signals or Java or HP-UX? -
Memory Leak with 4.5.1/Java/Solaris
Hi,
We are currently running a Java Application using RMI/Weblogic 4.5.1/Solaris 5.7/Java 1.22.
Behavior that has been observered during the day is that memory usage reaches a stage in which it begins increasing and GC doesn't recover any memory, until the heap reaches an extremly large size, then recovers a significant amount of memory.
We have even seen the java process grab more memory than specified in the -Xmx parameter and experience a java.lang.OutOfMemory error.
I have seen postings that describe similar issues in this newsgroup, but none that define a solution.
This problem is intermittent, and our application can run an entire day without experiencing this memory leak. On the other hand there are days when the memory leak occurrs even when the system is idle overnight.
Please let me know any information you have gathered on this subject.
Regards,
Mark Evanstry increasing your virtual memory on your NT system...
"Parasher K. Joshi" <[email protected]> wrote:
>
Hi,
I observed the same confusing stuff in my tests. But I run weblogic 4.5.1 on Windows NT with JDK 1.2.2-w
Usually, I would get a "Low virtual memory" message from windows
and if I click ok & shuffle thourgh my windows I would be ok.
But since last 2 days, I would keep the server running overnight.
When I return in morning,
I would find a "Low virtual memory" message and
on clicking OK. I would find another message tell me that java.exe (which was running weblogic) crashed!!
Now today I tried to watch the memory usage in Task Manager. And I found the most wierd thing.
I saw that even when the system was doing virtually nothing,
except print a string at intervals, the memory usage would go
up steadyly.
Even doing a forced finalization and gc did not seem to stop it.
BUT, BY CHANCE I HAPPEN TO MINIMISE AND MAXIMISE THE WEBLOGIC
CONSOLE OUTPUT WINDOW.
WHAT I SAW IN THE TASK MANAGER AMAZED ME!
THE MEMORY USAGE IN TASK MANAGER HAD GONE DOWN TO 24XXKB, WHILE
IT WAS ABOUT 20000K OR EVEN MORE.
This seems to support the fact that during my test, I would
get the "low virtual memory" message and if OKed it and shuffled
though application windows (maybe minimise, maximise the weblogic
console output window in process), I would be able to complete
my application. But when the message appears during night runs,
nothing is done and by morning, when I reach to work,
I would see that weblogic had crashed!!
You may try that and see if it helps you.
Parasher
Mark Evans <[email protected]> wrote:
Hi,
We are currently running a Java Application using RMI/Weblogic 4.5.1/Solaris 5.7/Java 1.22.
Behavior that has been observered during the day is that memory usage reaches a stage in which it begins increasing and GC doesn't recover any memory, until the heap reaches an extremly large size, then recovers a significant amount of memory.
We have even seen the java process grab more memory than specified in the -Xmx parameter and experience a java.lang.OutOfMemory error.
I have seen postings that describe similar issues in this newsgroup, but none that define a solution.
This problem is intermittent, and our application can run an entire day without experiencing this memory leak. On the other hand there are days when the memory leak occurrs even when the system is idle overnight.
Please let me know any information you have gathered on this subject.
Regards,
Mark Evans -
Memory leak in airport process on Core 2 Duo MBP?
Hello!
I'm having a problem with my MacBook Pro Core 2 Duo (15"). It was slowing down rather rapidly after boot, so I pulled up Activity Monitor and found that the process "airport" had consumed 1.3G of Real Memory and 2G of Virtual Memory, plus 100% of the % CPU. I killed the process and it goes back to normal (importantly, without any impact on the wireless networking).
If I shut the screen and start it up again, it relaunches the airport process and it eats up the memory and processor all over again.
Anyone have any ideas what might be wrong? I've already repaired the permissions.
Timothy
Macbook Pro 15" Core 2 Duo Mac OS X (10.4.8)Here's some data from airport.crash.log:
Host Name: Mongo
Date/Time: 2006-11-10 21:30:05.682 +0200
OS Version: 10.4.8 (Build 8N1037)
Report Version: 4
Command: airport
Path: /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport
Parent: launchd [1]
Version: ??? (???)
PID: 1228
Thread: 0
Exception: EXCBADACCESS (0x0001)
Codes: KERNPROTECTIONFAILURE (0x0002) at 0x00000000
Thread 0 Crashed:
0 <<00000000>> 0xffff0a2f __memcpy + 655 (cpu_capabilities.h:228)
1 com.apple.CoreFoundation 0x902a022f CFDataReplaceBytes + 315
2 com.apple.CoreFoundation 0x902a00c5 __CFDataInit + 689
3 airport 0x00016f10 0x1000 + 89872
4 airport 0x00017f5e 0x1000 + 94046
5 airport 0x00015524 0x1000 + 83236
6 airport 0x000089cb 0x1000 + 31179
7 airport 0x000025d0 0x1000 + 5584
8 airport 0x00003893 0x1000 + 10387
9 airport 0x00003f02 0x1000 + 12034
10 com.apple.CoreFoundation 0x902b63c5 __CFMachPortPerform + 136
11 com.apple.CoreFoundation 0x902a666d CFRunLoopRunSpecific + 2904
12 com.apple.CoreFoundation 0x902b71c8 CFRunLoopRun + 60
13 airport 0x00003d31 0x1000 + 11569
14 airport 0x00002456 0x1000 + 5206
15 airport 0x0000237d 0x1000 + 4989
Thread 0 crashed with X86 Thread State (32-bit):
eax: 0xffff09f5 ebx: 0x902a0102 ecx: 0x00000000 edx: 0xfffffc00
edi: 0x00000400 esi: 0xbffff244 ebp: 0xbfffe998 esp: 0xbfffe990
ss: 0x0000001f efl: 0x00010287 eip: 0xffff0a2f cs: 0x00000017
ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037
Binary Images Description:
0x1000 - 0x27fff airport /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport
0x8fe00000 - 0x8fe49fff dyld 46.9 /usr/lib/dyld
0x90000000 - 0x9016ffff libSystem.B.dylib /usr/lib/libSystem.B.dylib
0x90219000 - 0x90256fff com.apple.CoreText 1.1.1 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreText.framework/Versions/A/CoreText
0x90284000 - 0x9034cfff com.apple.CoreFoundation 6.4.6 (368.27) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x903a3000 - 0x90649fff com.apple.CoreServices.CarbonCore 682.15 /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonC ore.framework/Versions/A/CarbonCore
0x906cc000 - 0x9073ffff com.apple.framework.IOKit 1.4.6 (???) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x90758000 - 0x907c0fff com.apple.CoreServices.OSServices 4.1 /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServi ces.framework/Versions/A/OSServices
0x90815000 - 0x90815fff com.apple.CoreServices 10.4 (???) /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
0x90818000 - 0x9088efff com.apple.audio.CoreAudio 3.0.4 /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio
0x908e0000 - 0x908e0fff com.apple.ApplicationServices 10.4 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Application Services
0x908e3000 - 0x90962fff libobjc.A.dylib /usr/lib/libobjc.A.dylib
0x90990000 - 0x90a0dfff com.apple.DesktopServices 1.3.4 /System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/Desk topServicesPriv
0x90a58000 - 0x90c88fff com.apple.Foundation 6.4.7 (567.28) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
0x90db1000 - 0x90dc8fff libGL.dylib /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
0x90ddd000 - 0x90e35fff libGLU.dylib /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib
0x90e50000 - 0x90e76fff com.apple.SystemConfiguration 1.8.6 /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfi guration
0x90e8e000 - 0x90e99fff com.apple.opengl 1.4.13 /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL
0x90f32000 - 0x90f32fff com.apple.Cocoa 6.4 (???) /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa
0x9102b000 - 0x91041fff com.apple.LangAnalysis 1.6.3 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ LangAnalysis.framework/Versions/A/LangAnalysis
0x91054000 - 0x91060fff com.apple.speech.synthesis.framework 3.5 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ SpeechSynthesis.framework/Versions/A/SpeechSynthesis
0x910fe000 - 0x911a7fff com.apple.QD 3.10.21 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ QD.framework/Versions/A/QD
0x911e6000 - 0x91259fff com.apple.print.framework.PrintCore 4.6 (177.13) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ PrintCore.framework/Versions/A/PrintCore
0x912a5000 - 0x912adfff com.apple.speech.recognition.framework 3.6 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SpeechRecogni tion.framework/Versions/A/SpeechRecognition
0x918a2000 - 0x918bdfff com.apple.FindByContent 1.5 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ FindByContent.framework/Versions/A/FindByContent
0x918d0000 - 0x91a6ffff com.apple.security 4.4.1 (27569) /System/Library/Frameworks/Security.framework/Versions/A/Security
0x91b83000 - 0x91bc0fff com.apple.LaunchServices 181 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ LaunchServices.framework/Versions/A/LaunchServices
0x91bd8000 - 0x91eccfff com.apple.HIToolbox 1.4.8 (???) /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.fra mework/Versions/A/HIToolbox
0x92034000 - 0x9207ffff com.apple.HIServices 1.5.2 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ HIServices.framework/Versions/A/HIServices
0x920b3000 - 0x92769fff com.apple.AppKit 6.4.8 (824.42) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
0x92aeb000 - 0x92f40fff com.apple.CoreGraphics 1.258.51 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/CoreGraphics
0x93020000 - 0x93036fff libcups.2.dylib /usr/lib/libcups.2.dylib
0x932e3000 - 0x932f3fff com.apple.WebServices 1.1.3 (1.1.0) /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/WebServ icesCore.framework/Versions/A/WebServicesCore
0x934b1000 - 0x93530fff com.apple.SearchKit 1.0.5 /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchK it.framework/Versions/A/SearchKit
0x9357f000 - 0x93590fff com.apple.securityfoundation 2.2.1 (28150) /System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoun dation
0x935a3000 - 0x93681fff libxml2.2.dylib /usr/lib/libxml2.2.dylib
0x93e3b000 - 0x94244fff libBLAS.dylib /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libBLAS.dylib
0x9441c000 - 0x947d0fff libLAPACK.dylib /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libLAPACK.dylib
0x94808000 - 0x94861fff libvMisc.dylib /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libvMisc.dylib
0x94df5000 - 0x94ee8fff libicucore.A.dylib /usr/lib/libicucore.A.dylib
0x94f50000 - 0x95002fff libcrypto.0.9.7.dylib /usr/lib/libcrypto.0.9.7.dylib
0x9509b000 - 0x95188fff libiconv.2.dylib /usr/lib/libiconv.2.dylib
0x951e3000 - 0x951ebfff com.apple.DiskArbitration 2.1.1 /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
0x951f4000 - 0x95206fff libauto.dylib /usr/lib/libauto.dylib
0x953f8000 - 0x95471fff com.apple.CoreData 90 /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData
0x95573000 - 0x95591fff com.apple.Metadata 10.4.4 (121.36) /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Metadata
0x95972000 - 0x959b3fff libsqlite3.0.dylib /usr/lib/libsqlite3.0.dylib
0x95a55000 - 0x95a57fff libmathCommon.A.dylib /usr/lib/system/libmathCommon.A.dylib
0x95a5d000 - 0x95b31fff com.apple.ColorSync 4.4.6 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ColorSync.framework/Versions/A/ColorSync
0x95b92000 - 0x95ba0fff com.apple.audio.SoundManager 3.9.1 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CarbonSound.f ramework/Versions/A/CarbonSound
0x95bbd000 - 0x95be9fff com.apple.AE 314 (313) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ AE.framework/Versions/A/AE
0x95c07000 - 0x95c45fff com.apple.CFNetwork 129.18 /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwo rk.framework/Versions/A/CFNetwork
0x95c5d000 - 0x95c5dfff com.apple.Accelerate 1.3.1 (Accelerate 1.3.1) /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate
0x95d6a000 - 0x95df8fff com.apple.vImage 2.5 /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.fr amework/Versions/A/vImage
0x95e69000 - 0x95f3efff ATS /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/ATS
0x95fa6000 - 0x95fadfff libbsm.dylib /usr/lib/libbsm.dylib
0x96b4a000 - 0x96b4afff com.apple.Accelerate.vecLib 3.3.1 (vecLib 3.3.1) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/vecLib
0x96c62000 - 0x96c9dfff com.apple.ImageIO.framework 1.5.0 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/ImageIO
0x96cb2000 - 0x96cb6fff libGIF.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libGIF.dylib
0x96cb9000 - 0x96d17fff libJP2.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libJP2.dylib
0x96d2b000 - 0x96d49fff libJPEG.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libJPEG.dylib
0x96e1c000 - 0x96e36fff libPng.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libPng.dylib
0x96e3c000 - 0x96e3efff libRadiance.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libRadiance.dylib
0x96e41000 - 0x96ebefff libRaw.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libRaw.dylib
0x96ec3000 - 0x96f00fff libTIFF.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libTIFF.dylib
0x96fc2000 - 0x96ffcfff libGLImage.dylib /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dyl ib
0x97139000 - 0x971f1fff com.apple.audio.toolbox.AudioToolbox 1.4.3 /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox
0x9723c000 - 0x9723cfff com.apple.audio.units.AudioUnit 1.4.2 /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit
0x9723f000 - 0x97411fff com.apple.QuartzCore 1.4.10 /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore
0x9d66c000 - 0x9d6d0fff libstdc++.6.dylib /usr/lib/libstdc++.6.dylib
0x9dda6000 - 0x9ddcafff libvDSP.dylib /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libvDSP.dylib
0x9e07d000 - 0x9e084fff libgcc_s.1.dylib /usr/lib/libgcc_s.1.dylib
0x9e8c5000 - 0x9e8d3fff libz.1.dylib /usr/lib/libz.1.dylib
Thanks.
Timothy -
Memory leak in Callable Statement
We are using Weblogic 6.1 and Oracle 8.1.7 for an application we are developing.
Usage of callable statement seems to be resulting an a memory leak. The program runs
in a loop and after processing 200 records, java.lang.outofMemory Exception is thrown
We are unable to figure out a reason for the same.
The code snippet is as below
try
//dbConn = ImportPODBConnect.getDBConnection(dsJNDIName, dsURL); //connect
to DB <br>
dbConn = DBConnect.getDBConnection(dsJNDIName, dsURL);
//query = POQueries.selectPO(poId); //get the required
query statement from the POQueries utility class
Print.log(" in getPO() ----> ********* before 1st stmt " + System.currentTimeMillis());
cstmt = dbConn.prepareCall("{ ? = call PO_HEADER_PROC(?)}");
cstmt.registerOutParameter(1, OracleTypes.CURSOR);
cstmt.setFloat(2, poId);
// execute and retrieve the result set
cstmt.execute();
getPORs = (ResultSet)cstmt.getObject(1);
Print.log(" in getPO() ----> ********* after 1st stmt " + System.currentTimeMillis());
if (!getPORs.next()) //if nothing returned then
throw an exception
Print.log("Unable to get the required PO:" + poId);
throw new Exception("Unable to get the required PO:" + poId);
else //set all the variables
of the PO header objects from the result set
pohSl = new POHeaderSl();
pohSl.setOvUserName(getPORs.getString("OVA_USER_NAME"));
pohSl.setOvCompanyName(getPORs.getString("OVA_COMPANY_NAME"));
pohSl.setAgent(getPORs.getString("AGENT"));
pohSl.setApprovalCode(getPORs.getString("APPROVAL_CODE"));
pohSl.setBrand(getPORs.getString("BRAND"));
pohSl.setBusinessSegment(getPORs.getString("BUSINESS_SEGMENT"));
pohSl.setBusinessSubSegment(getPORs.getString("BUSINESS_SUB_SEGMENT"));
pohSl.setBuyDate(getPORs.getString("BUY_DATE"));
pohSl.setCareContentLabel(getPORs.getString("CARE_CONTENT_LABEL"));
pohSl.setCartonMarkings1(getPORs.getString("CARTON_MARKINGS_1"));
pohSl.setCartonMarkings2(getPORs.getString("CARTON_MARKINGS_2"));
pohSl.setCartonMarkings3(getPORs.getString("CARTON_MARKINGS_3"));
pohSl.setCartonMarkings4(getPORs.getString("CARTON_MARKINGS_4"));
pohSl.setComments(getPORs.getString("COMMENTS"));
pohSl.setCommissionPerUnit(getPORs.getString("COMMISSION_PER_UNIT"));
pohSl.setCompanyId(getPORs.getString("COMPANY_ID"));
pohSl.setCompulsoryString(getPORs.getString("COMPULSORY_STRING"));
pohSl.setConTimestamp(getPORs.getString("CON_TIMESTAMP"));
pohSl.setCurrency(getPORs.getString("CURRENCY"));
pohSl.setCustomerBillToNumber(getPORs.getString("CUSTOMER_BILL_TO_NUMBER"));
pohSl.setCustomerLcBank(getPORs.getString("CUSTOMER_LC_BANK"));;
pohSl.setCustomerLcDate(getPORs.getString("CUSTOMER_LC_DATE"));
pohSl.setCustomerLcExpiryDate(getPORs.getString("CUSTOMER_LC_EXPIRY_DATE"));
pohSl.setCustomerLcNumber(getPORs.getString("CUSTOMER_LC_NUMBER"));
pohSl.setCustomerPoNumber(getPORs.getString("CUSTOMER_PO_NUMBER"));
pohSl.setCustomerSaleDept(getPORs.getString("CUSTOMER_SALE_DEPT"));
pohSl.setCustomerShipToNumber(getPORs.getString("CUSTOMER_SHIP_TO_NUMBER"));
pohSl.setCustomerSo(getPORs.getString("CUSTOMER_SO"));
pohSl.setDateLastModifiedErp(getPORs.getString("DATE_LAST_MODIFIED_ERP"));
pohSl.setDateLastModifiedOv(getPORs.getString("DATE_LAST_MODIFIED_OV"));
pohSl.setDateOfActivation(getPORs.getString("DATE_OF_ACTIVATION"));
Print.log(" ******** inside getPO() ----- > ****** built Header" + System.currentTimeMillis()
if(getPORs != null)
getPORs.close();
getPORs = null;
if(cstmt != null)
Print.log("In the close");
cstmt.close();
cstmt = null;
catch (Exception e)
System.out.println(" in dataAccess.getPO() ----- > " + e.toString());
throw new Exception(e.toString()); //if there are any exceptions
then throw back the exceptions
finally //finally block to release any connections
and statement objects
if(getPORs != null)
getPORs.close();
getPORs = null;
if (pstmt!=null)
pstmt.close();
pstmt = null;
if (cstmt!=null)
cstmt.close();
cstmt = null;
if (dbConn!=null)
dbConn.close();
dbConn = null;
return poSl; //return the PO object
Can anyone help with this?hi
This may happen when you open resultset objects and not close them properly.
Try to ensure that, you should close the objects in individual try catch
blocks so that one failure will not cause other close's to be skipped.
You can try one more thing, I don't see you are using any LONG/ LONG
RAW/BLOB/CLOB columns from your code here. If the table which you are trying
to retrieve data from has this type of data you will benefit from using some
tuning parameters here and may be able to avoid out of memory exceptions,
take a look at the url,
http://e-docs.bea.com/wls/docs61/oracle/advanced.html#1158561
especially, try using,
weblobic.oci.selectBlobChunkSize and set it to something low. you can set
these properties on the connection pool.
sree
"Murali" <[email protected]> wrote in message
news:[email protected]...
>
>
We are using Weblogic 6.1 and Oracle 8.1.7 for an application we aredeveloping.
Usage of callable statement seems to be resulting an a memory leak. Theprogram runs
in a loop and after processing 200 records, java.lang.outofMemoryException is thrown
>
We are unable to figure out a reason for the same.
The code snippet is as below
try
//dbConn = ImportPODBConnect.getDBConnection(dsJNDIName, dsURL);//connect
to DB <br>
dbConn = DBConnect.getDBConnection(dsJNDIName, dsURL);
//query = POQueries.selectPO(poId); //getthe required
query statement from the POQueries utility class
Print.log(" in getPO() ----> ********* before 1st stmt " +System.currentTimeMillis());
>
cstmt = dbConn.prepareCall("{ ? = call PO_HEADER_PROC(?)}");
cstmt.registerOutParameter(1, OracleTypes.CURSOR);
cstmt.setFloat(2, poId);
// execute and retrieve the result set
cstmt.execute();
getPORs = (ResultSet)cstmt.getObject(1);
Print.log(" in getPO() ----> ********* after 1st stmt " +System.currentTimeMillis());
>
if (!getPORs.next()) //if nothing returnedthen
throw an exception
Print.log("Unable to get the required PO:" + poId);
throw new Exception("Unable to get the required PO:" + poId);
else //set all thevariables
of the PO header objects from the result set
pohSl = new POHeaderSl();
pohSl.setOvUserName(getPORs.getString("OVA_USER_NAME"));
pohSl.setOvCompanyName(getPORs.getString("OVA_COMPANY_NAME"));
pohSl.setAgent(getPORs.getString("AGENT"));
pohSl.setApprovalCode(getPORs.getString("APPROVAL_CODE"));
pohSl.setBrand(getPORs.getString("BRAND"));
pohSl.setBusinessSegment(getPORs.getString("BUSINESS_SEGMENT"));
pohSl.setBusinessSubSegment(getPORs.getString("BUSINESS_SUB_SEGMENT"));
pohSl.setBuyDate(getPORs.getString("BUY_DATE"));
pohSl.setCareContentLabel(getPORs.getString("CARE_CONTENT_LABEL"));
pohSl.setCartonMarkings1(getPORs.getString("CARTON_MARKINGS_1"));
pohSl.setCartonMarkings2(getPORs.getString("CARTON_MARKINGS_2"));
pohSl.setCartonMarkings3(getPORs.getString("CARTON_MARKINGS_3"));
pohSl.setCartonMarkings4(getPORs.getString("CARTON_MARKINGS_4"));
pohSl.setComments(getPORs.getString("COMMENTS"));
pohSl.setCommissionPerUnit(getPORs.getString("COMMISSION_PER_UNIT"));
pohSl.setCompanyId(getPORs.getString("COMPANY_ID"));
pohSl.setCompulsoryString(getPORs.getString("COMPULSORY_STRING"));
pohSl.setConTimestamp(getPORs.getString("CON_TIMESTAMP"));
pohSl.setCurrency(getPORs.getString("CURRENCY"));
pohSl.setCustomerBillToNumber(getPORs.getString("CUSTOMER_BILL_TO_NUMBER"));
pohSl.setCustomerLcBank(getPORs.getString("CUSTOMER_LC_BANK"));;
pohSl.setCustomerLcDate(getPORs.getString("CUSTOMER_LC_DATE"));
pohSl.setCustomerLcExpiryDate(getPORs.getString("CUSTOMER_LC_EXPIRY_DATE"));
pohSl.setCustomerLcNumber(getPORs.getString("CUSTOMER_LC_NUMBER"));
pohSl.setCustomerPoNumber(getPORs.getString("CUSTOMER_PO_NUMBER"));
pohSl.setCustomerSaleDept(getPORs.getString("CUSTOMER_SALE_DEPT"));
pohSl.setCustomerShipToNumber(getPORs.getString("CUSTOMER_SHIP_TO_NUMBER"));
pohSl.setCustomerSo(getPORs.getString("CUSTOMER_SO"));
pohSl.setDateLastModifiedErp(getPORs.getString("DATE_LAST_MODIFIED_ERP"));
pohSl.setDateLastModifiedOv(getPORs.getString("DATE_LAST_MODIFIED_OV"));
pohSl.setDateOfActivation(getPORs.getString("DATE_OF_ACTIVATION"));
Print.log(" ******** inside getPO() ----- > ****** built Header" +System.currentTimeMillis()
if(getPORs != null)
getPORs.close();
getPORs = null;
if(cstmt != null)
Print.log("In the close");
cstmt.close();
cstmt = null;
catch (Exception e)
System.out.println(" in dataAccess.getPO() ----- > " + e.toString());
throw new Exception(e.toString()); //if there are anyexceptions
then throw back the exceptions
finally //finally block to release anyconnections
and statement objects
if(getPORs != null)
getPORs.close();
getPORs = null;
if (pstmt!=null)
pstmt.close();
pstmt = null;
if (cstmt!=null)
cstmt.close();
cstmt = null;
if (dbConn!=null)
dbConn.close();
dbConn = null;
return poSl; //return the PO object
Can anyone help with this? -
COM+ and OLEDB - memory leak in OCI dlls
Hi forum,
I've a COM+ DLL written in C++ which uses OLEDB(Oracle 8.1.7 provider) to reach to the 8i database. I've observed that after some 1000 database activities the DLLhost.exe hogs on memory to the tune of 50MB and never releases the same. I also saw the same behavior with a Win32 console application. For some reason the Uninitialize of the IDBIntialize does not seem to reduce the memory. I also ran bounce checker on my code. And its pointing to the OCI dlls for a memory leak of 18K per each database activity.
I downloaded the OLEDB sample code(VCOLEMRecordsSample) from the OTN site:-
http://otn.oracle.com/sample_code/tech/windows/ole_db/oledb8/index.html
This also seems to hold on to memory after successive run of SQL queries.
Is there anything that I am missing. I am curious about the fact that it happens with the sample app hosted on the OTN site. Do I need some OCI patches to be applied to the client? In fact, applied couple of them, but does not help.
Appreciate any pointers!I am using 8.1.7.3.2. In fact I applied this patch recently.
Also today I detected a memory leak in my code.
After GetColumnsInfo() call I was not releasing the last param(ppStringsBuffer).
This seems to have fixed the problem. I tried running the win32 console app for 5,000 runs(each run has 2 SQL queries and 1 stored proc). The peak mem usage stays stable around 26MB and the mem usage varies from 8MB to 26MB. I guess this is fine, any info? -
Memory leak in IMAQ Write PNG File
Hi,
I have a labview program that I'm using to do Speckle Patter Interferometry - it takes an image, takes a second image after some time, then subtracts the original image from the first and saves the subtraction. The process reveals fringes on an object deformed on wavelength scales.
The problem currently is that the program seems to have a memory leak. When I run the program, the amount of memory being used (according to Windows Task Manager) just keeps going up and up then after about 20 minutes, it crashes with the error:
Error 1074396159
Not enough memory for required operation
The error is normally when the file tries to write the png file - though that is the part of the program that takes the most time so it could just be coincidence that it happens at this point in the loop.
I've tried using the labview profiler (output attached), but can't see a particular VI that is using an abhorrent amount of memory.
I'm fairly stuck for ideas - I've attached a library with the VI and its sub VIs - if anyone would be so kind as to give me a hand I'd be very much appreciative. I realise that my code is quiet messy - this is my first attempt at labview (albeit quite a long way into my first attempt) so any suggestions would be much appreciated also.
Thanks
Sam
Attachments:
ESPI.llb 556 KB
memory_profile.txt 237 KBHi Sam,
I'm glad to hear that you managed to fix the problem in your code. I have had a look at the code you posted and I have a few suggestions on how you can improve it.
In your code you haven't included the error clusters from the VIs. Most sub VI functions included in LabVIEW will have an Error In and Error Out port that will transfer any error information through the VI. If an error does occur in the code, the error will be passed through the rest of the VI. If a sub VI or function receives an error at its error in port the VI will not execute and the error will pass through until it reaches the end of the VI. At the end of a the VI there needs to be an Error Handler function to display the error information. As error information flows through the VI the same as the data, using error clusters is a good way to determine the flow of data through a VI. This is a good way to determine the data flow through the VI as opposed to Sequence Structures which should be used in moderation.
I have taken a segment of you code and made some minor modifications to demonstrate how error clusters can be used (see screenshot below).
Error clusters can be implemented into any logic for the stop condition of a while loop. The Unbundle by Name using the Status option can be used in conjunction with the error cluster to produce a boolean output depending on if an error has occurred. If an error does occur, the function will produce a true and if an error does not occur it will produce a false. The error cluster can also be expanded by hovering the mouse over the top or bottom of the function and dragging the grey box up or down. This is useful for when you want to produce multiple outputs from the same data, such as the histogram data in your VI.
Another thing I noticed in you code was some redundant logic. You had set the Stop button default on your front panel to true, which meant that an inverter had to be used to stop the first while loop and the stop condition in the last while loop had been changed to Continue if True. If you had kept the stop button default to False and the stop condition of the last while loop to Stop if True, the inverter on the first while loop would not be needed. This however is only a small issue but its something you could keep in mind when writing other code.
Hopefully these suggestions will help you to further develop you LabVIEW code. I understand that implementing these suggestions into you current code could be an issue due to the size of it, but they are good features to consider when developing any code in the future.
If there is anything you are unsure of please do not hesitate to post any questions. I will be more than happy to assist you.
Kind Regards
Jason W.
Applications Engineer
National Instruments UK & Ireland -
Finding Memory leaks in C using Visual Studio 2013
I am using Visual Studio 2013, and taking a course in C programming and we started
talking about memory bugs detaction, in particular memory leaks, and how to detect them using Valgrind on Linux.
I want to know if there is a way to detect such memory leaks using VS 2013. I tried searching online but it just leads to lots of articles and blogs and msdn posts and blogs with lots of words like dump files, and analyzing them, etc which is weird
because:
1) It sounds so complex, convoluted and unintuitive it is actually hard to comprehend it.
2) The main reason this is weird is due to the fact that VS is the most advanced IDE around and Microsoft spends so much money on in, yet from what I have read it seems that there is no simple way to use VS to detect memory leaks
- certainly no way that's as simple as Valgrind where I only have to compile the program and run the command valgrind -leaks-check=yes ProgramName
and it simply prints to me all location it thinks there is a memory leak and describes the error (like not freeing memory after allocating it with malloc hence having "dead" memory after the program finishes, or accessing memory that's out of
the array bounds)
So my question is how to use VS 2013 in order to achieve the same results and to find out First in high level if there are memory leaks in the program, and Second - to detect in a simple manner where those leaks are- preferably without involving dump files
(not that I know how to use them anyway in VS).Hi MicrosoftLaw,
Thanks for your post.
Based on your issue, if you want to check if there are memory leaks in the C program from this VS2013. I suggest you could try to find Memory Leaks Using the CRT Library, for more information:
https://msdn.microsoft.com/en-us/library/x98tx3cf.aspx?f=255&MSPPError=-2147217396
In addition, I find a similar thread about this issue, please you refer the Dusty's suggestion to check this issue.
http://stackoverflow.com/questions/45627/how-do-you-detect-avoid-memory-leaks-in-your-unmanaged-code
I did some research about this issue, I found that the Visual Leak Detector extension tool is a free, robust, open-source memory leak detection system for Visual C++. So if possible, I suggest you could try to use the Visual Leak Detector extension
tool to find the memory leak for Visual C/ C++ program.
https://visualstudiogallery.msdn.microsoft.com/7c40a5d8-dd35-4019-a2af-cb1403f5939c
However, if you have any issue about how to use this Visual Leak Detector extension tool to find the memory leak for C program. I suggest you could directly to write a review to this REVIEW tab in Visual Leak Detector site.
Best Regards,
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Memory leak resolved - JDK 1.4.2_06 vs. 1.5.0_11
Hello - (I am not a Java expert)
Can someone tell me how JDK 1.5 (now known as 5.0) fixed my memory leak issue? I just upgraded from JDK 1.4.2_06 to 1.5.0_1. I had issue of memory leaks on an application running on my web server utilizing Tomcat 5.0.28. After the upgrade, the memory leaks disappeared and my heap size remain the same. Seems that GC is working now. What does 1.5 have that 1.4 didn't have? Just curious.
Thank you
Jayson
Application SupportIt had some bugfixes. Check the release notes of the intervening versions to determine exactly which memory related issues got fixed.
Without seeing your code it's impossible to determine which particular issue you were suffering from. -
Memory leaks in MFC while using CDatabase::OpenEx()
Hi,
This question has been asked previously but the explanation was not in detail and i could never reach to the bottom of it.
I hope i can elaborate more on the problem statement and i can get a resolution/explanation from the experts here.
Consider the following two sample codes;
1.
int count = 200;
for (int i=0; i <count; ++i)
try
CDatabase *db = new CDatabase;
BOOL bRes = db->OpenEx(_T("DSN=MyData;UID=anon;PWD=pass"));
db->Close();
delete db;
db=NULL;
catch (CDBException* e)
e->Delete();
2.
CDatabase *db = new CDatabase;
int count = 200;
for (int i=0; i <count; ++i)
try
BOOL bRes = db->OpenEx(_T("DSN=MyData;UID=anon;PWD=pass"));
db->Close();
catch (CDBException* e)
e->Delete();
delete db;
db=NULL;
return 0;
delete db;
db=NULL;
The first sample code leaks a lot of memory and it can be easily observed from the task manager, the memory usage keeps on growing.
The second sample code does not leak any memory if i observe the memory usage from the task manager.
To find out the cause of the memory leak i ran the code through rational purify, both the codes are leaking memory according to rational purify. The first code leaks significantly more memory than the second one. The DLL pointed by rational purify are MFC
DLLs (inserting the screen shot below)
Is this a known issue with the MFC DLL or am i doing something wrong?
I have a server application where i have to create CDatabase object multiple times and i end up leaking a lot of memory over a period of time.
I can provide more information about this issue if required. Thanks in advance.I am trying to reproduce this issue on my side, but it seem there is no memory leak in my simple sample. I use _CrtDumpMemoryLeaks() to test the memory leak.
https://msdn.microsoft.com/en-us/library/d41t22sb.aspx
If I comment this line: db->Close();
I can detect the memory leak at CDatabase
*db =
new CDatabase;
See the screenshot.
If follow your sample code, there is memory leak message in the output view pane.
#define CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
#ifdef _DEBUG
#define new DEBUG_NEW
#endif.....int CMFCCdbMLTestApp::ExitInstance()
// TODO: Add your specialized code here and/or call the base class
_CrtDumpMemoryLeaks();
return CWinApp::ExitInstance();
May you can use some use tool like WinDbg tool to find more information about this issue.
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No Oracle processes running Oracles Shared segments not cleaned up
I've been running into situations where a databases SGA isn't cleaned up from memory but no Oracle processes are running. I always thought that if the Oracle processes die the instance does too, but that doesn't appear to be the case. There's a script that pulls down databases to refresh DB copies. My initial thought was that in certain situations the db isn't shutdown and the files are overwritten, but I have not been able to reproduce it. There's nothing in the Alert.log.... no errors what so ever. In what sort of circumstances would you see a databases SGA still in memory and no Oracle processes running? I can cleanup the shared memory segments.... I'm more concerned about understanding how it is occurring.
Any insight would be appreciated.
ThanksPlease reread your post with great care.
Do you see a platform and operating system?
Do you see a product name and full version number?
Do you see a description of which commands were executed?
Good. Because I don't either.
Post a full and complete description of the environment so we can try to replicate it. -
Process memory leak issue solaris 10
I have a process which has a memory leak issue. I ran this process on solaris 9 as well as solaris 10. When i run prstat command i get a different output for two. Funny thing is that memory leak noted in solaris 10 is much more than that in solaris 9 e.g if it is 1 MB in solaris 9 then its 4 MB in solaris 10.
What can be possibly causing this ? Is this related to kernel implementation on diff solaris ?I have a process which has a memory leak issue. I ran this process on solaris 9 as well as solaris 10. When i run prstat command i get a different output for two. Funny thing is that memory leak noted in solaris 10 is much more than that in solaris 9 e.g if it is 1 MB in solaris 9 then its 4 MB in solaris 10.
What can be possibly causing this ? Is this related to kernel implementation on diff solaris ? -
Memory Leaking message when run the log in page in Jdev 11.1.2
Hi
I am re design our 10g application in Jdev 11.1.2, I am using .jsf and ADF business component.
at the moment, the project has only two pages. login and home page.
when I run the login page, I see the message below. this is happening during the deployment process to the embeded weblogic
<ADFContext> <getCurrent> Automatically initializing a DefaultContext for getCurrent.
Caller should ensure that a DefaultContext is proper for this use.
Memory leaks and/or unexpected behaviour may occur if the automatic initialization is performed improperly.
This message may be avoided by performing initADFContext before using getCurrent().
For more information please enable logging for oracle.adf.share.ADFContext at FINEST level.
Anyone know why?
thanksHi Timo
Thanks for your reply, I read the thread you pointed to.
however, I am not sure my is related to the case mentioned. I am re design the application from scratch in Jdev 11.1.2, and my adfc-config.xml is as simple as this:
<?xml version="1.0" encoding="windows-1252" ?>
<adfc-config xmlns="http://xmlns.oracle.com/adf/controller" version="1.2">
<view id="Login">
<page>/commom/Login.jsf</page>
</view>
<view id="home">
<page>/commom/home.jsf</page>
</view>
<control-flow-rule id="__2">
<from-activity-id>*</from-activity-id>
<control-flow-case id="__3">
<to-activity-id>Login</to-activity-id>
</control-flow-case>
</control-flow-rule>
<control-flow-rule id="__4">
<from-activity-id>Login</from-activity-id>
<control-flow-case id="__5">
<from-outcome>success</from-outcome>
<to-activity-id>home</to-activity-id>
</control-flow-case>
</control-flow-rule>
<managed-bean id="__1">
<managed-bean-name>backing_login</managed-bean-name>
<managed-bean-class>com.mycompany.view.backing.login</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
</managed-bean>
</adfc-config>
also, I am using a session filter registered in web.xml --- basically, if the page is not Login.jsf then redirect to Login.jsf page. but even though I removed the session filter.java from the web.xml , it still show the message. -
Safari web process - memory leak?
Mac Pro seemed to have slowed to a crawl.
Safari 5.1.2 on SL 10.6.8
Activity Monitor showed I was low on memory - over 7GB was being used by 'safari web process' - slowly close all open pages until only left with two - one was simply the 'bing' home page, the other a page that had failed to load.
Anyone else had this kind of thing recently?Safari has a known memory leak. Open teh Activity Monitor, sort the list of apps by Real Memory column. You will find one called Safari Web Content. This is the cause. If you are running an safari extensions, they use SWafari Web Content to run, you can try turning off your extensions to see if that helps. About the only know fix now, is to close safari regularly. 5.1.2 was suppose to close some leaks but has not. There are reports you can run safari in 32bit mode but I haven't confirmed if this helps or not.
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