Garbage Collection problem with BI 4.0
Hi experts,
I've installed BI 4.0, the operating system is SUSE Linux. In the logging directory are several *._gc.log-Files:
E.g. crproc_bobSIAN.CrystalReportsProcessingServer_child_gc.log:
34.609: [Full GC [PSYoungGen: 8352K->2707K(86976K)] [ParOldGen: 33449K->33470K(49472K)] 41801K->36177K(136448K) [PSPermGen: 35
487K->35460K(56640K)], 0.2510370 secs] [Times: user=0.25 sys=0.00, real=0.24 secs]
39.664: [GC [PSYoungGen: 81283K->4033K(100544K)] 114753K->40232K(150016K), 0.0387570 secs] [Times: user=0.03 sys=0.02, real=0.
04 secs]
41.271: [GC [PSYoungGen: 91137K->14332K(101440K)] 127336K->51242K(150912K), 0.0316510 secs] [Times: user=0.02 sys=0.01, real=0
.03 secs]
47.628: [GC [PSYoungGen: 101436K->15431K(112320K)] 138346K->66686K(163712K), 0.0623110 secs] [Times: user=0.06 sys=0.01, real=
0.06 secs]
47.690: [Full GC [PSYoungGen: 15431K->12343K(112320K)] [ParOldGen: 51255K->51388K(73088K)] 66686K->63731K(185408K) [PSPermGen:
63948K->63918K(96064K)], 0.5285130 secs] [Times: user=0.49 sys=0.04, real=0.53 secs]
659.998: [GC [PSYoungGen: 107383K->14966K(114752K)] 158771K->66354K(187840K), 0.1000770 secs]
or bobSIAN_gc.log:
3542.210: [GC 3542.233: [DefNew: 20756K->925K(22208K), 0.0036560 secs] 54323K->34493K(71208K), 0.0037360 secs] [Times: user=0.00 sys=0.00, real=0.03 secs]
3781.915: [GC 3781.942: [DefNew: 20701K->962K(22208K), 0.0031300 secs] 54269K->34530K(71208K), 0.0031840 secs] [Times: user=0.00 sys=0.00, real=0.03 secs]
4081.483: [GC 4081.499: [DefNew: 20738K->981K(22208K), 0.0030550 secs] 54306K->34549K(71208K), 0.0031110 secs]
It's also interesting, that I'm missing free space in the installation directory of Business Objects. There are no reports scheduled, but the directory still grows. Maybe it depends on problems with GC.
Any idea? Is there a best practice, how to configure the jvm?
Thanks and best regards,
Max
Hello Deepu,
The current plan for BI OnDemand is to support BOE 4.0 in the 2012 timeframe. We have not yet worked out a specific date for the release, though. The specific upgrade plan and long term feature roadmap is still under discussion for BI OnDemand.
Regards,
Terry Penner
BI OnDemand Product Owner
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I have been working my butt of on this issue and i just cant seem to get anywhere... probably due to my complete lack of knowledge on this whole GC thing! :)
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Thanks in advance.
Fabian.Welcome to SDN.
I am not sure about this particular issue, but i have used WSDL from WAS6.20 system in MS Office infopath to consume webservice where we have had table parameters without any issue.
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# An error report file with more information is saved as hs_err_pid2600.log
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=====================================================================================
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# Java VM: Java HotSpot(TM) Server VM (1.5.0_03-b07 mixed mode)
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O4=0x00008868 O5=0x00147d48 O6=0xf8781460 O7=0xfe0f7938
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0xf87814d0: 00008800 00487588 fe141310 fe7d6454
Instructions: (pc=0xfe141348)
0xfe141338: ec 06 c0 1a 80 a5 a0 00 22 40 00 0a ba 07 60 01
0xfe141348: f2 05 a0 00 ae 0e 60 03 80 a5 e0 03 22 40 00 05
Stack: [0xf8702000,0xf8781d98), sp=0xf8781460, free space=509k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x141348]
V [libjvm.so+0x17aefc]
V [libjvm.so+0x2d557c]
V [libjvm.so+0x300ef8]
V [libjvm.so+0x301e84]
V [libjvm.so+0x2ff950]
V [libjvm.so+0x29df30]
V [libjvm.so+0x362b44]
V [libjvm.so+0x6436f0]
VM_Operation (0xe03012b0): parallel gc system gc, mode: safepoint, requested by thread 0x0031bca0
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x00b2c028 JavaThread "Thread-4" [_thread_in_native, id=85]
0x007f5048 JavaThread "Thread-0" [_thread_blocked, id=84]
0x00c27cf0 JavaThread "Notification Delivery" [_thread_blocked, id=81]
0x0026fa08 JavaThread "RMI LeaseChecker" daemon [_thread_blocked, id=73]
0x00821048 JavaThread "RMI RenewClean-[162.11.2.32:44425]" daemon [_thread_blocked, id=70]
0x0031bca0 JavaThread "GC Daemon" daemon [_thread_blocked, id=67]
0x00cd5d28 JavaThread "RMI Reaper" [_thread_blocked, id=66]
0x003c9300 JavaThread "Timer-0" daemon [_thread_blocked, id=65]
0x00929fe0 JavaThread "RMI TCP Accept-0" daemon [_thread_in_native, id=64]
0x0089bf18 JavaThread "SeedGenerator Thread" daemon [_thread_blocked, id=42]
0x00c47248 JavaThread "Pool thread #7" daemon [_thread_blocked, id=38]
0x00c466a0 JavaThread "Pool thread #6" daemon [_thread_blocked, id=37]
0x00311850 JavaThread "Pool thread #5" daemon [_thread_blocked, id=36]
0x00287a40 JavaThread "Pool thread #4" daemon [_thread_blocked, id=35]
0x00286e98 JavaThread "Pool thread #3" daemon [_thread_blocked, id=34]
0x00c134b0 JavaThread "Pool thread #2" daemon [_thread_blocked, id=33]
0x00ad09e0 JavaThread "Pool thread #1" daemon [_thread_blocked, id=32]
0x00286cd8 JavaThread "PoolThreadManager" daemon [_thread_blocked, id=31]
0x00c129e0 JavaThread "Channel Reaper" daemon [_thread_blocked, id=30]
0x00c669e8 JavaThread "ORB Daemon Thread" daemon [_thread_blocked, id=29]
0x00b10170 JavaThread "Worker for ServerProtocol: (iiop) /0.0.0.0:20168" daemon [_thread_blocked, id=22]
0x008a17e0 JavaThread "Syn~ Client" daemon [_thread_blocked, id=21]
0x003dc378 JavaThread "PoolScavenger0" daemon [_thread_blocked, id=20]
0x0015a928 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=15]
0x00159880 JavaThread "CompilerThread1" daemon [_thread_blocked, id=14]
0x00158a18 JavaThread "CompilerThread0" daemon [_thread_blocked, id=13]
0x00157b98 JavaThread "AdapterThread" daemon [_thread_blocked, id=12]
0x00156dc8 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=11]
0x0014ccd8 JavaThread "Finalizer" daemon [_thread_blocked, id=10]
0x0014ad90 JavaThread "Reference Handler" daemon [_thread_blocked, id=9]
0x00038238 JavaThread "main" [_thread_in_native, id=1]
Other Threads:
=>0x001484d8 VMThread [id=8]
0x0015c3b0 WatcherThread [id=16]
VM state:at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event])
[0x00037728/0x00037758] Threads_lock - owner thread: 0x001484d8
[0x00033650/0x00037ba8] Heap_lock - owner thread: 0x0031bca0
Heap
PSYoungGen total 37632K, used 9244K [0xf2eb0000, 0xf7ba0000, 0xf8400000)
eden space 28352K, 0% used [0xf2eb0000,0xf2eb0000,0xf4a60000)
from space 9280K, 99% used [0xf4a60000,0xf5367080,0xf5370000)
to space 25216K, 0% used [0xf6300000,0xf6300000,0xf7ba0000)
PSOldGen total 154496K, used 94371K [0xe8400000, 0xf1ae0000, 0xf2eb0000)
object space 154496K, 61% used [0xe8400000,0xee028e78,0xf1ae0000)
PSPermGen total 35584K, used 18260K [0xe4400000, 0xe66c0000, 0xe8400000)
object space 35584K, 51% used [0xe4400000,0xe55d5158,0xe66c0000)
Dynamic libraries:
0x00010000 /dsdvlp/java/jvm/jdk1.5.0_03/bin/java
0xff350000 /usr/lib/libthread.so.1
0xff340000 /usr/lib/libdl.so.1
0xff200000 /usr/lib/libc.so.1
0xff390000 /usr/platform/SUNW,Sun-Fire-880/lib/libc_psr.so.1
0xfe000000 /dsdvlp/java/jvm/jdk1.5.0_03/jre/lib/sparc/server/libjvm.so
0xff1e0000 /usr/lib/libsocket.so.1
0xff2d0000 /usr/lib/libsched.so.1
0xff1b0000 /usr/lib/libCrun.so.1
0xff160000 /usr/lib/libm.so.1
0xff080000 /usr/lib/libnsl.so.1
0xff060000 /usr/lib/libmp.so.2
0xff030000 /dsdvlp/java/jvm/jdk1.5.0_03/jre/lib/sparc/native_threads/libhpi.so
0xfdfc0000 /dsdvlp/java/jvm/jdk1.5.0_03/jre/lib/sparc/libverify.so
0xfdf80000 /dsdvlp/java/jvm/jdk1.5.0_03/jre/lib/sparc/libjava.so
0xfdf50000 /dsdvlp/java/jvm/jdk1.5.0_03/jre/lib/sparc/libzip.so
0xfb7e0000 /usr/lib/locale/en_GB.ISO8859-1/en_GB.ISO8859-1.so.2
0xe4190000 /dsdvlp/java/jvm/jdk1.5.0_03/jre/lib/sparc/libnet.so
0xe3bd0000 /dsdvlp/lib/5/libSolarisNatives.so
0xe3e90000 /dsdvlp/java/jvm/jdk1.5.0_03/jre/lib/sparc/librmi.so
VM Arguments:
jvm_args: -Djava.ext.dirs=/dsdvlp/java/tmijar/firs7/lib/cli:/dsdvlp/java/tmijar/firs7/lib/cli/ext:/dsdvlp/java/tmijar/firs7/lib/cmn/OpenORB:/dsdvlp/java/tmijar/firs7/lib/cmn/OpenORB/ext:/dsdvlp/java/tmijar/firs7/lib/cmn:/dsdvlp/java/tmijar/firs7/lib/cmn/ext:/dsdvlp/java/tmijar/firs7/daemonlib -Duser.dir=/dsdvlp/java/tmijar/firs7 -Dopenorb.config=file:/dsdvlp/java/tmijar/firs7/configs/OpenORB/config/SynOpenORB.xml -Dopenorb.home=file:/dsdvlp/java/tmijar/firs7/configs/OpenORB -Dcom.coexis.syn.general.orbbinding=com.coexis.syn.general.orbbinding.openorb.OpenORBBinding_1_4 -Dsun.rmi.dgc.client.gcInterval=360000 -Dsun.rmi.dgc.server.gcInterval=360000000 -Xms32m -Xmx256m -Dcom.coexis.syn.clientcommandsconfiglocation=file://localhost//dsdvlp/java/tmijar/firs7/configs/clientcommands.xml -Dcom.coexis.syn.clientconfiglocation=file://localhost//dsdvlp/java/tmijar/firs7/configs/fsbbtd_client.xml -XX:+PrintGCTimeStamps -XX:+PrintGCDetails
java_command: com.coexis.syn.mqmessaging.daemon.RunDaemon -p /dsdvlp/bin/5/lndsfsd_fsbbtd.properties start
Environment Variables:
JAVA_HOME=/dsdvlp/java/jvm/jdk150
CLASSPATH=.:/dsdvlp/java/jar/jconnect520.jar:/dsdvlp/java/jar/vbjapp340.jar:/dsdvlp/java/jar/vbjorb340.jar:/dsdvlp/java/jar/javax_jndi120.jar
PATH=/usr/local/etc:/usr/lang:/usr/openwin/bin:/usr/ucb:/bin:/usr/etc:/usr/local/5/bin:/dsdvlp/bin/5:/dsdvlp/bin/4:/home/app/sybase/5/bin:/home/app/sybase/5/localscripts:/home/app/sybase/5/sqr:/home/app/lang:/home/app/lang/SC2.0.1:/usr/ccs/bin:/usr/local/opt/Acrobat3/bin:/dsdvlp/bin:.
LD_LIBRARY_PATH=/dsdvlp/java/jvm/jdk1.5.0_03/jre/lib/sparc/server:/dsdvlp/java/jvm/jdk1.5.0_03/jre/lib/sparc:/dsdvlp/java/jvm/jdk1.5.0_03/jre/../lib/sparc:/usr/lib:/usr/openwin/lib:/usr/local/5/lib:/dsdvlp/lib/5:/dstest/lib/5:/home/app/sybase/5/lib:/dstest/cats/sun4/lib:/tmitest/Opus/opus/lib
SHELL=/bin/csh
DISPLAY=CLI00184.mfil.local:1.0
OS=5
--------------- S Y S T E M ---------------
OS: Solaris 8 2/02 s28s_u7wos_08a SPARC
Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
Assembled 18 December 2001
uname:SunOS 5.8 Generic_117350-20 sun4u (T1 libthread)
rlimit: STACK 8192k, CORE 9216k, NOFILE 4096, AS infinity
load average:2.24 2.67 2.68
CPU:total 4 has_v8, has_v9, has_vis1, has_vis2, is_ultra3
Memory: 8k page, physical 8388608k(166384k free)
vm_info: Java HotSpot(TM) Server VM (1.5.0_03-b07) for solaris-sparc, built on Apr 13 2005 03:31:26 by unknown with unknown Workshop:0x550The very first suggestion I have is to move your VM to a more recent update of 1.5.0.
It looks like you are crashing with 5.0u3, and I'm pretty sure 5.0u16 is available. You
don't want to waste your time chasing a bug that's already been fixed. -
All Tweens randomly halting (Not Garbage Collection)
I am developing a game with some AS3 tweens. I have encountered the problem of garbage collection affecting tweens before so I have all my tweens referenced at the class level now to ensure that isn't a problem. However, randomly all the current tweens in my game will stop. Other, non-tweened, frame by frame animations continue. It's just like the garbage collection problem but the tweens shouldn't be being collected...
The code I am using for tweens:
Var declaration at the top of the class:
private var gateTween:Tween;
This code in a function:
gateTween = new Tween(currentGate, "x", None.easeOut, 800, 380, 1.5, true);
gateTween.addEventListener(TweenEvent.MOTION_FINISH, horseJump);
Any ideas would be appriciated.I have Swing based java project. Im setting all the
references to null as and when i dont need them, and
then im calling System.gc() also.
However it seems the memory is not being released,
when i check in the task manager, memory usage does
not reduce. It seems garbage collection is not
happening.Actually I have a small class - where in I try to do this:-
public class TestDebug extends Object{
/** Creates a new instance of TestDebug */
public TestDebug() {
* @param args the command line arguments
public static void main(String[] args) {
System.out.println("Trying to debug this");
TestDebug testDebug = new TestDebug();
testDebug.finalize();
System.out.println("Lasting print");
public void finalize(){
System.out.println("Finalize called");
System.gc();
System.out.println("Finalize finished");
But it is also true that you should never try to force it - It has its own way to do it.
For Example try to execute a big code(so that you can find JVM doing the GC) as "java -verbose:gc class-name"
You will find at some points during the execution process - that the JVM actually runs the GC on its own- but when not that is not defined.It is a low priority thread running under JVM. -
Understanding Garbage Collection
Garbase Collector collects any objects that the program cannot access. If an object cannot be accessed, it will be collected by the garbage collector if needed.
Can someone explain with a simple example when an object cannot be garbase collected? preferably an example with 'String'
thanksString text = "Hallo";
//the instance "Hallo" cannot be collected here
String message = text;
text = null;
//neither here;
message = null;
//The instance "Hallo" can be collecter here by the GBI don't think that this is the way it works. Garbage collection frees memory for use, and in this case, the variable text could still be referenced, even though it does not have a value. I might be wrong, but my guess would be that setting a variable to be null, would result in the location of memory allocated for the variable to be emptied (e.g. C-function memset). If the garbage collection would occur when the variable is set to null might cause problems, like so:
String foo = "bar; // Create and initliaze variable
foo = null; // Set to null, assume garbage collection
String bar = "foor"; // Create and initialize. If this were now stored
// in the same memory slot as foo, which would be possible due
// to the garbage collection, problems would arise from next line
foo = "bar"; // Now foo and bar refer to the same memory locationTherefore garbage collection occurs only when no object or class holds no reference to the variable, example:
if(foobar) {
String localVar = "local variable";
// When the if-block ends, the variable localVariable is collected
// as it no longer can be referenced.Tuomas Rinta -
Performance problem due to garbage collection?
Hallo,
we implemented a digital whiteboard with JavaFX: there is a scene (3200 x 2400 px) on which you can draw (insert paths) and add post-its (colored rectangles with paths or string a content). It's possible to drag the post-its around and it's also possible to pan the scene (to reach all parts of the scene which don't fit into the windows).
The application works quite fast even with ca. 50 post-its and lots of skribbles/drawings. But after ca. 20 minutes the application gets a lot slower. Drawing curves (or handwriting) is not really possible anymore as the paths get angular and moving a post-it takes longer and longer.
How is this possible? Is there a problem with the JavaFX garbage collection? Does anyone else have the problem that the application gets slower after a while?
When I close the window and load it again with the same elements it's as quick as in the beginning and slows down after ca. 20 min. again.
Thanks for your help and suggestions what could be the problem!
RajaI can't really answer...
We can eliminate saturation of scenegraph capabilities since you can reload it again without problem (at start).
Maybe you create lot of temp objects that aren't properly collected?
I suggest to run JVisualVM on your application and watch its memory (and CPU) usage. -
Managing gigabytes with Java garbage collection ?
I am at the early stage of Java development project (kind of a memory based database index server) which easily involves managing 500.000+ very large Java objects (array based as this is the only way to use memory efficiently in Java) + a couple of millions of smaller objects.
Most of the objects are long lived but some (query) operations involve temporary creation of several 100MB+ sized objects. The app should run on Windows or Unix\Linux and will probably require/use up to 1-2GB of RAM (max possible on typical 32bit OS). At best it should be able to run under the JDK1.3+ hotspot VM.
I am concerned that the garbage collection by the VM may be a problem. While the app does not have real-time requirements, most (query) operations ought to complete in less than a second. Frequent complete GC freezes of say 5+ seconds would not be acceptable.
Anyone with experience on this ? Do you expect that I will get a problem with Java garbage collection or am I too concerned about this ?Anyone with experience on this ? Do you expect that I
will get a problem with Java garbage collection or am
I too concerned about this ?With an application that size, yes, you will run into problems, unless you are very careful.
Not being familiar with your applications memory allocation and access patterns, it's hard to be more specific. Perhaps something like 1.4.1's incremental GC will help in your case, but simply getting the VM to allocate and manage 2GB of memory will be a challenge.
Caveat emptor..
(See if you can split your application into smaller applications that can be run in different virtual machines; as long as each application's virtual machine doesn't grow too large, the GC problem will be manageable, and more importantly, you'll be able to use more than 2GB of memory comfortably). -
Problem with the garbage collector
Well, I have a problem, and it's quite a big deal.
I don't understand why the java BC refuses to free the memory.
I have made a VERY LITTLE example, so that everybody will see what the problem is made with.
a frame with 2 buttons. the first one make another frame appears, which contains a quite big Swing component. The other is here in order to try to free the memory of this frame.
Here are the 2 classes :
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class FirstClass extends JFrame{
private JButton jButton1 = new JButton("free memory");
private JButton jButton2 = new JButton("load frame");
private MyFrameColor frame;
public FirstClass() {
jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(MouseEvent e) {
jButton1_mouseClicked(e);
jButton2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(MouseEvent e) {
jButton2_mouseClicked(e);
this.getContentPane().add(jButton1, BorderLayout.NORTH);
this.getContentPane().add(jButton2, BorderLayout.SOUTH);
this.show();
public static void main(String[] args)
new FirstClass();
import javax.swing.*;
import java.awt.*;
public class MyFrameColor extends JFrame {
JColorChooser jColorChooser1 = new JColorChooser();
public MyFrameColor() {
this.getContentPane().add(jColorChooser1, BorderLayout.CENTER);
}Some more info on garbage collection:
http://www.javaworld.com/javaworld/jw-12-2001/jw-1207-java101.html?
http://developer.java.sun.com/developer/technicalArticles/ALT/RefObj/ -
I am having problems with my music collection, after burning all of my music to the computer I organized it into folders and placed it in the iTunes Folder. As of now i realize this was a mistake. Starting on a new computer now. I cant get my music to transfer from the itunes folder on the old computer? I keep getting error "Can't Read from the source file or disk." Whenever I got to folder properties its always checked read only. But when i play the song it works just fine. Im sure this is just because I added music into itunes folder but is there anyway to fix it?
WMA files are 'window media audio' files, which is a Microsoft format. If you want to add them to your iTunes library on your Mac then you will need to convert them into a compatible format first. If you still have your windows machine then iTunes for Windows can convert them from WMA to MP3 format : https://discussions.apple.com/message/24158701#24158701
Or try a search for, for example, 'convert wma to mp3' to find programs to convert them.
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