Garbage collection logs
In the following garbage collection logs:-
84818.180: [GC 84818.180: [ParNew: 159810K->11632K(172032K), 0.0475511 secs] 520283K->372704K(1024000K), 0.0477481 secs]
84874.024: [GC 84874.024: [ParNew: 159088K->14118K(172032K), 0.0552993 secs] 520160K->375190K(1024000K), 0.0554933 secs]how would you find out when the garbage collection cycle actually took place? i.e. absolute time
In the following garbage collection logs:-
84818.180: [GC 84818.180: [ParNew:
159810K->11632K(172032K), 0.0475511 secs]
520283K->372704K(1024000K), 0.0477481 secs]
84874.024: [GC 84874.024: [ParNew:
159088K->14118K(172032K), 0.0552993 secs]
520160K->375190K(1024000K), 0.0554933 secs]how would you find out when the garbage collection
cycle actually took place? i.e. absolute timeI normally try to update my posts in case somebody in future comes across the same question, he finds an answer to the problem as well and not just the problem. So what I found out was that in the above gc logs, 84818.180 would be the no. of seconds since the start of the appserver, and one would have to get that time from stderr.log file. So once you get that time from stderr log you need to add these sec to that time to get the absolute time. Its kind PIA but thats how it is, I am still not sure why they used this convention since time from start of the server would not mean anything for a developer analyzing the log files
Similar Messages
-
Looking for the Garbage Collection log files
Hello,
I am looking for the Garbage Collection log files which contain the GC events, like this:
[GC 2095K->1709K(2160K), 0.0017628 secs]
[Full GC 2161K->1018K(2276K), 0.0576353 secs]
The server's GC is already configured accordingly:
verbose:gc
I have examined the std_server<x>.out files at the work folder but can't see this info.
My question is: Where would I find these files on the server?I can't find info in the format I know it not at dev_server* or std_server*.
in std_server I see xml file like this:
<gc type="scavenger" id="1" totalid="1" intervalms="0.000">
<flipped objectcount="303111" bytes="24994248" />
<tenured objectcount="0" bytes="0" />
<refs_cleared soft="429" weak="4329" phantom="0" />
<finalization objectsqueued="1711" />
<scavenger tiltratio="50" />
<nursery freebytes="497866672" totalbytes="524288000" percent="94" tenureage="10" />
<tenured freebytes="1094921936" totalbytes="1098907648" percent="99" >
<soa freebytes="1039977168" totalbytes="1043962880" percent="99" />
<loa freebytes="54944768" totalbytes="54944768" percent="100" />
</tenured>
<time totalms="185.585" />
</gc>
I guess this is the info I need but it's not formatted in a way that your tool can read it and having a tool like this reading it is very helpful.
Any ideas? -
"Hi,
I try and understand the mechanism of garbage collection of the Java Virtual Machine : Hewlett-Packard Hotspot release 1.3.1.01.
There is description of this mechanism in the pdf file : "memory management and garbage collection" available at the paragraph "Java performance tuning tutorial" at the page :
http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,1607,00.html
Regarding my question :
Below is an extract of the log file of garbage collections. This extract has 2 consecutive garbage collections.
(each begins with "<GC:").
<GC: 1 387875.630047 554 1258496 1 161087488 0 161087488 20119552 0 20119552
334758064 238778016 335544320
46294096 46294096 46399488 5.319209 >
<GC: 5 387926.615209 555 1258496 1 161087488 0 161087488 0 0 20119552
240036512 242217264 335544320
46317184 46317184 46399488 5.206192 >
There are 2 "full garbage collections", one of reason "1" and one of reason "5".
For the first one "Old generation After " =238778016
For the second "Old generation After " =238778016
Thus, "Old generation Before garbage collection" of the second is higher than "Old generation After garbage collection". Why?
I expected all objects to be allocated in the "Eden" space. And therefore I did not expect to sI agree but my current Hp support is not very good on JVM issues.
Rob Woollen <[email protected]> wrote:
You'd probably be better off asking this question to HP.
-- Rob
Martial wrote:
The object of this mail is the Hewlett-Packard 1.3.1.01 Hotspot JavaVirtual Machine
release and its garbage collection mechanism.
I am interested in the "-Xverbosegc" option for garbage collectionmonitoring.
I have been through the online document :
http://www.hp.com/products1/unix/java/infolibrary/prog_guide/java1_3/hotspot.html#-Xverbosegc
I would like to find out more about the garbage collection mechanismand need
further information to understand the result of the log file generatedwith the
"-Xverbosegc"
For example here is an extract of a garbage collection log file generatedwith
Hewlett-Packard Hotspot Java Virtual Machine. Release 1.3.1.01.
These are 2 consecutive rows of the files :
<GC: 5 385565.750251 543 48 1 161087488 0 161087488 0 0 20119552 264184480255179792
335544320 46118384 46118384 46137344 5.514721 >
<GC: 1 385876.530728 544 1258496 1 161087488 0 161087488 20119552 020119552 334969696
255530640 335544320 46121664 46106304 46137344 6.768760 >
We have 2 full garbage collections, one of Reason 5 and the next oneof Reason
1.
What happened between these 2 garbage collections as we got : "Oldgeneration
After" of row 2 is higher than "Old generation Before" of row 1? Iexpected Objects
to be initially allocated in eden and so we could not get "old generation2modified
between the end of one garbage collection and before the next one.
Could you please clarify this issue and/or give more information aboutgarbage
collection mechanisms with the Hewlett-Packard Hotspot Java VirtualMachine. Release
1.3.1.01. -
Creation Of garabage collection logs
Hi Gurus,
Just wanted to Ask as i can generate garbage collection logs on weblogic..is it possible on OAS10g as well???
If yes please let me know how..I have an Java application running on OAS10g.
Thanks in advance
Regards
Fabianfollow this
article how to create for MS office and try adding SMS_G_System_SYSTEM.SystemType = "X64-based PC"
in criteria.
Eswar Koneti | Configmgr blog:
www.eskonr.com | Linkedin: Eswar Koneti
| Twitter: Eskonr -
Garbage Collection--please help
My garbage collection logs look as follows:
<pre>
(1)342.003: [GC 342.003: [DefNew
Desired survivor size 819200 bytes, new threshold 1 (max 4)
- age 1: 1153152 bytes, 1153152 total
: 13184K->1126K(14784K), 0.0221720 secs] 13184K->1126K(63936K), 0.0227740 secs] [Times: user=0.00 sys=0.02, real=0.03 secs]
768.603: [GC [1 CMS-initial-mark: 0K(49152K)] 7114K(63936K), 0.0062870 secs]
(2)1358.802: [GC 1358.802: [DefNew
Desired survivor size 819200 bytes, new threshold 4 (max 4)
- age 1: 785520 bytes, 785520 total
: 14310K->767K(14784K), 0.0680510 secs] 14310K->1700K(63936K) icms_dc=5 , 0.0682220 secs] [Times: user=0.00 sys=0.03, real=0.07 secs]
1847.304: [GC [1 CMS-initial-mark: 932K(49152K)] 8210K(63936K), 0.0058360 secs]
(3)2537.684: [GC 2537.684: [DefNew
Desired survivor size 819200 bytes, new threshold 2 (max 4)
- age 1: 815688 bytes, 815688 total
- age 2: 171848 bytes, 987536 total
: 13951K->964K(14784K), 0.0402100 secs] 14800K->1813K(63936K) icms_dc=0 , 0.0407760 secs]
</pre>
I don't know why a concurrent collection is initiated in (2) despite the new threshold is 4.
Why there is no age 2, age 3 and age 4 collection? In (1) and (3), collection occurs as promised, once when the new threshold is 1 and twice when the new threshold is twice.
May be the numbers in (2) tell me something, but I don't know how to interpret them.
Please help.
Thank you.It looks like you are running into what is sometimes called the "Young Generation
Guarantee" in Sun's JVM. See
http://java.sun.com/docs/hotspot/gc1.4.2/#3.2.1.%20Young%20Generation%20Guarantee|outline
You have a large young generation and there might not be a contiguous
chunk in the tenured generation that is large enough to hold all of the
young generation. Try cutting your young generation down to 128m and
see if that helps. You can also take a look at
http://blogs.sun.com/jonthecollector/entry/what_the_heck_s_a
You're running into a "concurrent mode failure" although that is not explicitly
spelled out in 1.4.2.
And go back to the regular (not incremental) version of UseConcMarkSweepGC. -
Does 5.1 log garbage collection like 4.5.2?
The weblogic 4.5.2 release notes state that the server will log whenever it
garbage collects, see below. Does 5.1 do this?
"We changed the distributed garbage collection server to always indicate
that it is running by adding entries to the Server log file. A typical entry
is:
Thu Aug 19 19:44:28 PDT 1999:<I> <DGCserver>
Freed 1086 objects in 30 ms, 24 exported object remain."It should. There is a slight possibility that it might not appear as a
feature until service pack No. 4 if the change to version 4.5.2 was not done
until after service pack three was completed.
If you do not see it in service pack No. 4, please report to support.
Thanks,
Michael
Michael Girdley
Product Manager, WebLogic Server & Express
BEA Systems Inc
Mark Johnson <[email protected]> wrote in message
news:396bbb8f$[email protected]..
The weblogic 4.5.2 release notes state that the server will log wheneverit
garbage collects, see below. Does 5.1 do this?
"We changed the distributed garbage collection server to always indicate
that it is running by adding entries to the Server log file. A typicalentry
is:
Thu Aug 19 19:44:28 PDT 1999:<I> <DGCserver>
Freed 1086 objects in 30 ms, 24 exported object remain." -
Hotspot core dumping during JVM garbage collection ?
We have an application which calls a 3rd party supplied server API which has recently been upgraded to use Java 1.5
We are getting the following error reported by our client application. The application is also now running Java 1.5 but references many classes in jar files which would have quite old code in.
The supplier of the API has stated that the problem requires us to recompile all our jar files using v 1.5 ( including things like jconnect and jms ?!?!? ). This sounds like a bit of a cop-out to me, not to mention being impossible since we don't have the source for things like jconnect.
I suspect that there is a garbage collection problem at the bottom of all this, but I'm not sure how I can "prove" this, nor do I currently have any real clue as to how to fix any GC problem that may exist.
The application is supposed to wait for a message on a MQSeries queue and then transforms it via Xalan XSLT and sends it to a Server application. I've tried playing around with heap sizes etc but that just seems to make it worse. If I leave it at the settings that the previous version used then the client at least manages to process a couple of messages before core dumping. There doesn't seem to be a consistent trigger event to cause the core dump ( it's not a message arriving on a queue for example ) but it does seem to be fairly consistent timewise, i.e. after
Any ideas gratefully accepted.
Here's a logfile excerpt from my applications showing the Hotspot error message :
=====================================================================================
08-Jul-2008 10:01:05 Waiting for messages from COLT.BBFS
08-Jul-2008 10:02:05 Waiting for messages from COLT.BBFS
08-Jul-2008 10:03:05 Waiting for messages from COLT.BBFS
405.815: [GC [PSYoungGen: 17331K->9244K(37632K)] 111702K->103615K(192128K), 0.1615910 secs]
405.977: [Full GC#
# An unexpected error has been detected by HotSpot Virtual Machine:
# SIGBUS (0xa) at pc=0xfe141348, pid=2600, tid=8
# Java VM: Java HotSpot(TM) Server VM (1.5.0_03-b07 mixed mode)
# Problematic frame:
# V [libjvm.so+0x141348]
# An error report file with more information is saved as hs_err_pid2600.log
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
=====================================================================================
The logfile referred to in the error message contains the following.
=====================================================================================
# An unexpected error has been detected by HotSpot Virtual Machine:
# SIGBUS (0xa) at pc=0xfe141348, pid=2600, tid=8
# Java VM: Java HotSpot(TM) Server VM (1.5.0_03-b07 mixed mode)
# Problematic frame:
# V [libjvm.so+0x141348]
--------------- T H R E A D ---------------
Current thread (0x001484d8): VMThread [id=8]
siginfo:si_signo=10, si_errno=0, si_code=1, si_addr=0x0000080f
Registers:
O0=0x00487588 O1=0xfe7d6454 O2=0x000079b0 O3=0x00007800
O4=0x00008868 O5=0x00147d48 O6=0xf8781460 O7=0xfe0f7938
G1=0xe52aaae8 G2=0x00000003 G3=0x00000003 G4=0x001484d8
G5=0xf8781d98 G6=0x00000002 G7=0xf8781d98 Y=0x805683e2
PC=0xfe141348 nPC=0xfe14134c
Top of Stack: (sp=0xf8781460)
0xf8781460: fe786000 00c6ba20 fe10013c e54bab68
0xf8781470: 0000080f e54bab6c 0000080f 00000004
0xf8781480: 00487588 00000134 e54bab6c 00000004
0xf8781490: 00000001 00000000 f87814c0 fe17aef4
0xf87814a0: fe6485b4 fe7d899c 001484d8 0011da40
0xf87814b0: 00148988 00148c10 00148d7c f8781880
0xf87814c0: 007c3389 007c3c0e 00000f87 00008868
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. -
High cpu usage for garbage collection (uptime vs total gc time)
Hi Team,
We have a very high cpu usage issue in the production.
When we restart the server, the cpu idle time would be around 95% and it comes down as days goes by. Today idle cpu is 30% and it is just 6th day after the server restart.
Environemnt details:
Jrockit version:
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_05-b04)
BEA WebLogic JRockit(TM) 1.4.2_05 JVM R24.4.0-1 (build ari-38120-20041118-1131-linux-ia32, Native Threads, GC strategy: parallel)
Gc Algorithm: JRockit Garbage Collection System currently running strategy: Single generational, parallel mark, parallel sweep
Number Of Processors: 4
Max Heap Size: 1073741824
Total Garbage Collection Time: 21:43:56.5
Uptime: 114:33:4.1
Total Garbage Collection Count: 420872
Total Number Of Threads: 198
Number Of Daemon Threads: 191
Can you guys please tell me what would be problem in the server which causing the high cpu usage?
One more thing I would like to know is that why the total number of threads is 198 when we specified the Executor pool size as 25? I agree that weblogic would create some threads for its maintenance but around 160 threads!!! something is wrong I guess.
Santhosh.
[email protected]Hi,
I'm having a similar problem, but haven't been able to resolve it yet. Troubleshooting is made even harder by the fact that this is only happening on our production server, and I've been unable to reproduce it in the lab.
I'll post whatever findings I have and hopefully we'll be able to find a solution with the help of BEA engineers.
In my case, I have a stand-alone Tomcat server that runs fine for about 1-2 days, and then the JVM suddenly starts using more CPU, and as a result, the server load shoots up (normal CPU utilization is ~5% but eventually goes up to ~95%; load goes from 0.1 to 4+).
What I have found so far is that this corresponds to increased GC activity.
Let me list my environment specs before I proceed, though:
CPU: Dual Xeon 3.06GHz
RAM: 2GB
OS: RHEL4.4 (2.6.9-42.0.2.ELsmp)
JVM build 1.5.0_03-b07 (BEA JRockit(R) (build dra-45238-20050523-2008-linux-ia32, R25.2.0-28))
Tomcat version 5.5.12
JAVA_OPTS="-Xms768m -Xmx768m -XXtlasize16k -XXlargeobjectlimit16k -Xverbose:memory,cpuinfo -Xverboselog:/var/log/tomcat5/jvm.log -Xverbosetimestamp"
Here are excerpts from my verbose log (I'm getting some HT warning, not sure if that's a problem):
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Detected SMP with 2 CPUs that support HT.
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Trying to determine if HT is enabled.
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Trying to read from /dev/cpu/0/cpuid
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Warning: Failed to read from /dev/cpu/0/cpuid
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Trying to read from /dev/cpu/1/cpuid
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Warning: Failed to read from /dev/cpu/1/cpuid
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] HT is: supported by the CPU, not enabled by the OS, enabled in JRockit.
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Warning: HT enabled even though OS does not seem to support it.
[Fri Oct 20 15:54:55 2006][22855][memory ] GC strategy: System optimized over throughput (initial strategy singleparpar)
[Fri Oct 20 15:54:55 2006][22855][memory ] heap size: 786432K, maximal heap size: 786432K
[Fri Oct 20 16:07:30 2006][22855][memory ] Changing GC strategy to generational, parallel mark and parallel sweep
[Fri Oct 20 16:07:30 2006][22855][memory ] 791.642-791.874: GC 786432K->266892K (786432K), 232.000 ms
[Fri Oct 20 16:08:02 2006][22855][memory ] 824.122: nursery GC 291998K->274164K (786432K), 175.873 ms
[Fri Oct 20 16:09:51 2006][22855][memory ] 932.526: nursery GC 299321K->281775K (786432K), 110.879 ms
[Fri Oct 20 16:10:24 2006][22855][memory ] 965.844: nursery GC 308151K->292222K (786432K), 174.609 ms
[Fri Oct 20 16:11:54 2006][22855][memory ] 1056.368: nursery GC 314718K->300068K (786432K), 66.032 ms
[Sat Oct 21 23:21:09 2006][22855][memory ] 113210.427: nursery GC 734274K->676137K (786432K), 188.985 ms
[Sat Oct 21 23:30:41 2006][22855][memory ] 113783.140: nursery GC 766601K->708592K (786432K), 96.007 ms
[Sat Oct 21 23:36:15 2006][22855][memory ] 114116.332-114116.576: GC 756832K->86835K (786432K), 243.333 ms
[Sat Oct 21 23:48:20 2006][22855][memory ] 114841.653: nursery GC 182299K->122396K (786432K), 175.252 ms
[Sat Oct 21 23:48:52 2006][22855][memory ] 114873.851: nursery GC 195060K->130483K (786432K), 142.122 ms
[Sun Oct 22 00:01:31 2006][22855][memory ] 115632.706: nursery GC 224096K->166618K (786432K), 327.264 ms
[Sun Oct 22 00:16:37 2006][22855][memory ] 116539.368: nursery GC 246564K->186328K (786432K), 173.888 ms
[Sun Oct 22 00:26:21 2006][22855][memory ] 117122.577: nursery GC 279056K->221543K (786432K), 170.367 ms
[Sun Oct 22 00:26:21 2006][22855][memory ] 117123.041: nursery GC 290439K->225833K (786432K), 69.170 ms
[Sun Oct 22 00:29:10 2006][22855][memory ] 117291.795: nursery GC 298947K->238083K (786432K), 207.200 ms
[Sun Oct 22 00:39:05 2006][22855][memory ] 117886.478: nursery GC 326956K->263441K (786432K), 87.009 ms
[Sun Oct 22 00:55:22 2006][22855][memory ] 118863.947: nursery GC 357229K->298971K (786432K), 246.643 ms
[Sun Oct 22 01:08:17 2006][22855][memory ] 119638.750: nursery GC 381744K->322332K (786432K), 147.996 ms
[Sun Oct 22 01:11:22 2006][22855][memory ] 119824.249: nursery GC 398678K->336478K (786432K), 93.046 ms
[Sun Oct 22 01:21:35 2006][22855][memory ] 120436.740: nursery GC 409150K->345186K (786432K), 81.304 ms
[Sun Oct 22 01:21:38 2006][22855][memory ] 120439.582: nursery GC 409986K->345832K (786432K), 153.534 ms
[Sun Oct 22 01:21:42 2006][22855][memory ] 120443.544: nursery GC 410632K->346473K (786432K), 121.371 ms
[Sun Oct 22 01:21:44 2006][22855][memory ] 120445.508: nursery GC 411273K->347591K (786432K), 60.688 ms
[Sun Oct 22 01:21:44 2006][22855][memory ] 120445.623: nursery GC 412391K->347785K (786432K), 68.935 ms
[Sun Oct 22 01:21:45 2006][22855][memory ] 120446.576: nursery GC 412585K->348897K (786432K), 152.333 ms
[Sun Oct 22 01:21:45 2006][22855][memory ] 120446.783: nursery GC 413697K->349080K (786432K), 70.456 ms
[Sun Oct 22 01:34:16 2006][22855][memory ] 121197.612: nursery GC 437378K->383392K (786432K), 165.771 ms
[Sun Oct 22 01:37:37 2006][22855][memory ] 121398.496: nursery GC 469709K->409076K (786432K), 78.257 ms
[Sun Oct 22 01:37:37 2006][22855][memory ] 121398.730: nursery GC 502490K->437713K (786432K), 65.747 ms
[Sun Oct 22 01:44:03 2006][22855][memory ] 121785.259: nursery GC 536605K->478156K (786432K), 132.293 ms
[Sun Oct 22 01:44:04 2006][22855][memory ] 121785.603: nursery GC 568408K->503635K (786432K), 71.751 ms
[Sun Oct 22 01:50:39 2006][22855][memory ] 122180.985: nursery GC 591332K->530811K (786432K), 131.831 ms
[Sun Oct 22 02:13:52 2006][22855][memory ] 123573.719: nursery GC 655566K->595257K (786432K), 117.311 ms
[Sun Oct 22 02:36:04 2006][22855][memory ] 124905.507: nursery GC 688896K->632129K (786432K), 346.990 ms
[Sun Oct 22 02:50:24 2006][22855][memory ] 125765.715-125765.904: GC 786032K->143954K (786432K), 189.000 ms
[Sun Oct 22 02:50:26 2006][22855][memory ] 125767.535-125767.761: GC 723232K->70948K (786432K), 225.000 ms
vvvvv
[Sun Oct 22 02:50:27 2006][22855][memory ] 125768.751-125768.817: GC 712032K->71390K (786432K), 64.919 ms
[Sun Oct 22 02:50:28 2006][22855][memory ] 125769.516-125769.698: GC 711632K->61175K (786432K), 182.000 ms
[Sun Oct 22 02:50:29 2006][22855][memory ] 125770.753-125770.880: GC 709632K->81558K (786432K), 126.000 ms
[Sun Oct 22 02:50:30 2006][22855][memory ] 125771.699-125771.878: GC 708432K->61368K (786432K), 179.000 ms
So, I'm running with the default GC strategy which lets the GC pick the most suitable approach (single space or generational). It seems to switch to generational almost immediately and runs well - most GC runs are in the nursery, and only once in a while it goes through the older space.
Now, if you look at [Sun Oct 22 02:50:27 2006], that's when everything changes. GC starts running every second (later on it's running 3 times a second) doing huge sweeps. It never goes through the nursery again, although the strategy is still generational.
It's all downhill from this point on, and it's a matter of hours (maybe a day) before we restart the server.
I guess my only question is: What would cause such GC behavior?
I would appreciate your ideas/comments!
Thanks,
Tenyo -
When will wls try to garbage collect ?
The docs for the option "Low memory GC threshold" say that this is the "Threshold
level at which WLS will try to garbage collect once the granularity report has
been met".
My question is: When is this condition met ? If at least once there has been a
granularity report in the log ? Or if the server has been set to Warning state
The problem Im trying to address is that my "Low memory GC threshold" is set to
20% and my server has reached only 1% free memory and garbage collection did not
run, I had to force it via console.
Thanks in advance, GiselleI am wonder when the WLS activate or passivate session and how can I control it?
> From documents, sessionWillPassivate in HttpSessionActivationListener will
be
> executed when a session is about to passivate on one server (ie. WLS
instance)
> and the sessionDidActivate method when the same session has been activated
on
> a second server.
>
> But I have monitor the behavior for a long time by setting
PersistentStoreType
> to file, memory, replicated. sessionDidActivate and sessionWillPassivate
will
> never executed. I expected it will passivate and activate when session is
replicated
> between servers or persist in files. Any ideas?
What version of WL? the interface you describe was new in Servlet 2.3, so it
may not be implemented until 6.1 or even 7.x.
Peace,
Cameron Purdy
Tangosol, Inc.
http://www.tangosol.com/coherence.jsp
Tangosol Coherence: Clustered Replicated Cache for Weblogic
"Karen Law" <[email protected]> wrote in message
news:3ec86188$[email protected]..
>
-
Premature Garbage Collection of Remote Objects
I have a problem with distributed garbage collection and RMI. In CSPoker we try to support RMI for client-server communication. The client looks up the server through the registry, calls the login method and receives back a Remote Object reference called ServerContext. The client can register Remote even listener Objects with the server.
In both directions we occasionally see:
java.rmi.NoSuchObjectException: no such object in table
The behaviour is completely unpredictable. Some developers never see it, others see it all the time. Even on the same machine, sometimes it failes immediately
and sometimes it fails after a while. One person running the Sun JRE 6 on Windows has this poblem most frequently.
Can this be a bug or do we misinterpret something? The way we see it, as long as the client leases the Remote Object it shouldn't be GCed. All tests are run on localhost so no network partition can occur.
The problem would probably be solved if we hold static references to all Remote Objects in the local JVM. This is not an option because we want the Objects to be GCed once the lease expires.
Here are 2 debugging outputs of server runs with RMI logging enabled:
http://cspoker.pastebin.com/f27a7d6fc
As you can see, the lease requests are coming through but a NoSuchObjectException is thrown and the Object is finalized.
http://cspoker.pastebin.com/f732797d2Thanks for the quick reply.
For instance:
11:56:02,427 DEBUG (org.cspoker.common.api.shared.context.ForwardingRemoteServerContext.java:72) [finalize] - Garbage collecting old context: org.cspoker.server.rmi.export.ExportingServerContext@15a8767
07.11.2008 11:56:02 sun.rmi.server.UnicastServerRef logCall
FEINER: RMI TCP Connection(2)-10.0.4.106: [10.0.4.106: sun.rmi.transport.DGCImpl[0:0:0, 2]: java.rmi.dgc.Lease dirty(java.rmi.server.ObjID[], long, java.rmi.dgc.Lease)]
07.11.2008 11:56:03 sun.rmi.transport.Transport serviceCall
FEIN: RMI TCP Connection(2)-10.0.4.106: [10.0.4.106] exception:
java.rmi.NoSuchObjectException: no such object in table
at sun.rmi.transport.Transport.serviceCall(Transport.java:129)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:466)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:707)
at java.lang.Thread.run(Thread.java:595)The context Object is exported and returned to the client here :
return (ExternalRemoteServerContext) UnicastRemoteObject.exportObject(context, 0);Then [the object|http://code.google.com/p/cspoker/source/browse/trunk/server/rmi/src/main/java/org/cspoker/server/rmi/export/ExportingServerContext.java?r=1023] that was just exported is GCed.
11:56:02,427 DEBUG (org.cspoker.common.api.shared.context.ForwardingRemoteServerContext.java:72) [finalize] - Garbage collecting old context: org.cspoker.server.rmi.export.ExportingServerContext@15a8767Then a lease request comes in:
FEINER: RMI TCP Connection(2)-10.0.4.106: [10.0.4.106: sun.rmi.transport.DGCImpl[0:0:0, 2]: java.rmi.dgc.Lease dirty(java.rmi.server.ObjID[], long, java.rmi.dgc.Lease)]Then the client calls a method on the remote object and the NoSuchObjectException is thrown.
The behaviour is non-deterministic in any case but yes, on the Linux JVM I'm not seeing the problem, somebody on Windows gets it all the time. -
Where can I see Garbage Collection File on AIX system
Can someone direct me to the location where all log files are located on J2EE Server of XI ?. I'm partilarly interested to see Garbage Collection File.. Thanks
Hi -
You can see the GC activtiy in the <i>std_server<x>.out</i> file within the <i>work</i> directory located at:
/usr/sap/<SID>/DVEBMGS<XX>/work
The <i>-verbose:gc</i> should be enabled for the GC activity to appear (e.g. within the Config tool). Having this parameter enabled is the SAP recommendation in any case, so hopefully it's enabled and you can see the GC output. Check Note 723909 and 716927 for further details.
Regards,
Jin -
Cache voluntary garbage collection called
We have installed Oracle Web Cache 2.0.0.4.0 on Windows 2000. We setup the Maximum cache size parameter to 1000Mb, but, when we try to caching a web using WGET, Oracle Web Cache return a "cache voluntary garbage collection called" in the file of log: "event_log".
What is the problem?The message you're seeing in the event log isn't necessarily a problem. The cache has a voluntary garbage collection mechanism that "wakes up" periodically, checks to see if the system is sufficiently idle, and begins to clear out garbage (invalidated/expired) files. This is different from "forced garbage collection", which occurs when the cache nears its maximum size.
Are you able to cache content? Are you seeing responses served out of the cache?
I would strongly advise you to upgrade to release 9.0.2, available for download on OTN. There is also a migration tool there for moving from 2.0.0.x to 9.0.2.x. After you've migrated, you can optionally apply the 9.0.2.1 patch set, available on Metalink. -
I am doing the following:
public class MyClass {
private Thread t = null;
public class testThread extends Thread{
public void run(){
String logName = this.getClass().getName();
Logger.Print( logName ); // Basically prints logName to file
for( int i = 1; i<4; i++){
try{
Thread.sleep(100)
[do stuff]
Thread.sleep(100);
catch(InterruptedException e) { }
public callThread(){
if ( t != null ){
if( !(t.isAlive()){
t = new TestThread();
t.start();
else{
t = new TestThread();
t.start();
} What, I want to happen is a thread to finish and after that a new one to start, and once the old thread does not have any variable assoiciated to it anymore, it should get garbage collected as far as my java understnading goes, this is exactly what should happen, in duo time whenever the garabage collecter decides so. This is a very long time running program.
And the log shows the names of the threads like Thread-1 , Thread-2, Thread-3 , Thread-4, basically this name is increased by one everytime the function callThread is called and the old thread finished running, is there a limit to how many times I can call it like if it is called 10 billion times, will I have Thread-10000000000 in my log? and will the garbage collection work as I think? I am a c++ programmer so I do not trust it 100%, I really feel like adding delete t; so I can feel confident it is really gone before I do a t = new TestThread(); hehe C++ sickness??
Please give me advice on this!!! and I will be very happy!
Edited by: dakiar on Mar 19, 2008 8:18 AMdakiar wrote:
What, I want to happen is a thread to finish and after that a new one to start,Use join(), rather than looping and checking isAlive, in order to determine when a thread has died.
while (true) {
Runnable r = new MyRunnable(); // You have no reason to extend Thread. It's preferable to implement runnable.
Thread t = new Thread(r);
t.start();
t.join();
and once the old thread does not have any variable assoiciated to it anymore, it should get garbage collected as far as my java understnading goes,It will become eligible for GC. There's no guarantee when or even if it will actually be GCed, other than that GC will at least happen before OutOfMemoryError.
And the log shows the names of the threads like Thread-1 , Thread-2, Thread-3 , Thread-4, basically this name is increased by one everytime the function callThread is called and the old thread finished running, is there a limit to how many times I can call it No.
like if it is called 10 billion times, will I have Thread-10000000000 in my log? Perahps. Or if Thread uses an int then it might wrap around to Integer.MIN_VALUE and give Thread--2147483648.
You know you can assign your own names to the Threads.
and will the garbage collection work as I think? It will work fine, and that has nothing to do with thread names.
I am a c++ programmer so I do not trust it 100%,So, you think that you managing memory ad-hoc in every program you write when you're trying to focus on implementing the business requirements of your app will be better at it than the guys who were specifically focussed on writing memory management that would be handled consisently by the computer, and has been continuously refined, not to mention tested by thousands of Java developers over the last dozen or so years?
I really feel like adding delete t; You can't and you don't need to. -
Every time I try to open terminal I get this:
Process: Terminal [375]
Path: /Applications/Utilities/Terminal.app/Contents/MacOS/Terminal
Identifier: com.apple.Terminal
Version: 2.2.3 (303.2)
Build Info: Terminal-303002000000000~1
Code Type: X86-64 (Native)
Parent Process: launchd [243]
Date/Time: 2013-04-27 21:01:14.584 -0700
OS Version: Mac OS X 10.7.5 (11G63b)
Report Version: 9
Interval Since Last Report: -253893 sec
Crashes Since Last Report: 20
Per-App Interval Since Last Report: 108 sec
Per-App Crashes Since Last Report: 15
Anonymous UUID: F9AFDFB7-B568-4DCF-8FA3-DD4CDD3613ED
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Application Specific Information:
objc[375]: garbage collection is OFF
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSKeyedUnarchiver initForReadingWithData:]: incomprehensible archive (0x62, 0x70, 0x6c, 0x69, 0x73, 0x74, 0x30, 0x30)'
*** First throw call stack:
0 CoreFoundation 0x00007fff89f0bf56 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff85920d5e objc_exception_throw + 43
2 CoreFoundation 0x00007fff89f0bd8a +[NSException raise:format:arguments:] + 106
3 CoreFoundation 0x00007fff89f0bd14 +[NSException raise:format:] + 116
4 Foundation 0x00007fff868bb61b -[NSKeyedUnarchiver initForReadingWithData:] + 2611
5 Foundation 0x00007fff868fffbb +[NSKeyedUnarchiver unarchiveObjectWithData:] + 68
6 Terminal 0x0000000105c39e43 Terminal + 20035
7 Terminal 0x0000000105c37c99 Terminal + 11417
8 Terminal 0x0000000105c377b2 Terminal + 10162
9 Terminal 0x0000000105c373f2 Terminal + 9202
10 Terminal 0x0000000105c3731c Terminal + 8988
11 Terminal 0x0000000105c36d30 Terminal + 7472
12 AppKit 0x00007fff86bb0389 -[NSIBObjectData nibInstantiateWithOwner:topLevelObjects:] + 1311
13 AppKit 0x00007fff86ba68bb loadNib + 322
14 AppKit 0x00007fff86ba5db8 +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 217
15 AppKit 0x00007fff86ba5cd3 +[NSBundle(NSNibLoading) loadNibFile:externalNameTable:withZone:] + 141
16 AppKit 0x00007fff86ba5c16 +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 364
17 AppKit 0x00007fff86e16cd7 NSApplicationMain + 398
18 Terminal 0x0000000105c36164 Terminal + 4452
terminate called throwing an exception
abort() called
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff85d21ce2 __pthread_kill + 10
1 libsystem_c.dylib 0x00007fff8ac267d2 pthread_kill + 95
2 libsystem_c.dylib 0x00007fff8ac17a7a abort + 143
3 libc++abi.dylib 0x00007fff890f07bc abort_message + 214
4 libc++abi.dylib 0x00007fff890edfcf default_terminate() + 28
5 libobjc.A.dylib 0x00007fff859211b9 _objc_terminate + 94
6 libc++abi.dylib 0x00007fff890ee001 safe_handler_caller(void (*)()) + 11
7 libc++abi.dylib 0x00007fff890ee05c std::terminate() + 16
8 libc++abi.dylib 0x00007fff890ef152 __cxa_throw + 114
9 libobjc.A.dylib 0x00007fff85920e7a objc_exception_throw + 327
10 com.apple.CoreFoundation 0x00007fff89f0bd8a +[NSException raise:format:arguments:] + 106
11 com.apple.CoreFoundation 0x00007fff89f0bd14 +[NSException raise:format:] + 116
12 com.apple.Foundation 0x00007fff868bb61b -[NSKeyedUnarchiver initForReadingWithData:] + 2611
13 com.apple.Foundation 0x00007fff868fffbb +[NSKeyedUnarchiver unarchiveObjectWithData:] + 68
14 com.apple.Terminal 0x0000000105c39e43 0x105c35000 + 20035
15 com.apple.Terminal 0x0000000105c37c99 0x105c35000 + 11417
16 com.apple.Terminal 0x0000000105c377b2 0x105c35000 + 10162
17 com.apple.Terminal 0x0000000105c373f2 0x105c35000 + 9202
18 com.apple.Terminal 0x0000000105c3731c 0x105c35000 + 8988
19 com.apple.Terminal 0x0000000105c36d30 0x105c35000 + 7472
20 com.apple.AppKit 0x00007fff86bb0389 -[NSIBObjectData nibInstantiateWithOwner:topLevelObjects:] + 1311
21 com.apple.AppKit 0x00007fff86ba68bb loadNib + 322
22 com.apple.AppKit 0x00007fff86ba5db8 +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 217
23 com.apple.AppKit 0x00007fff86ba5cd3 +[NSBundle(NSNibLoading) loadNibFile:externalNameTable:withZone:] + 141
24 com.apple.AppKit 0x00007fff86ba5c16 +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 364
25 com.apple.AppKit 0x00007fff86e16cd7 NSApplicationMain + 398
26 com.apple.Terminal 0x0000000105c36164 0x105c35000 + 4452
Thread 1:: Dispatch queue: com.apple.libdispatch-manager
0 libsystem_kernel.dylib 0x00007fff85d227e6 kevent + 10
1 libdispatch.dylib 0x00007fff87b14786 _dispatch_mgr_invoke + 923
2 libdispatch.dylib 0x00007fff87b13316 _dispatch_mgr_thread + 54
Thread 2:
0 libsystem_kernel.dylib 0x00007fff85d22192 __workq_kernreturn + 10
1 libsystem_c.dylib 0x00007fff8ac26594 _pthread_wqthread + 758
2 libsystem_c.dylib 0x00007fff8ac27b85 start_wqthread + 13
Thread 3:
0 libsystem_kernel.dylib 0x00007fff85d22192 __workq_kernreturn + 10
1 libsystem_c.dylib 0x00007fff8ac26594 _pthread_wqthread + 758
2 libsystem_c.dylib 0x00007fff8ac27b85 start_wqthread + 13
Thread 4:
0 libsystem_kernel.dylib 0x00007fff85d227e6 kevent + 10
1 com.apple.Terminal 0x0000000105c36b9d 0x105c35000 + 7069
2 com.apple.Foundation 0x00007fff868d672a -[NSThread main] + 68
3 com.apple.Foundation 0x00007fff868d66a2 __NSThread__main__ + 1575
4 libsystem_c.dylib 0x00007fff8ac248bf _pthread_start + 335
5 libsystem_c.dylib 0x00007fff8ac27b75 thread_start + 13
Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x0000000000000000 rbx: 0x0000000000000006 rcx: 0x00007fff65832fb8 rdx: 0x0000000000000000
rdi: 0x0000000000000b07 rsi: 0x0000000000000006 rbp: 0x00007fff65832fe0 rsp: 0x00007fff65832fb8
r8: 0x00007fff72276fb8 r9: 0x00007fff65832a48 r10: 0x00007fff85d21d0a r11: 0xffffff80002dad60
r12: 0x0000000105e245c0 r13: 0x0000000105e24b20 r14: 0x00007fff72279960 r15: 0x00007fff65833130
rip: 0x00007fff85d21ce2 rfl: 0x0000000000000246 cr2: 0x00000001100f3000
Logical CPU: 0
Binary Images:
0x105c35000 - 0x105ce5fff com.apple.Terminal (2.2.3 - 303.2) <4FE3571C-852C-3F5E-BA6A-87B48ED5E043> /Applications/Utilities/Terminal.app/Contents/MacOS/Terminal
0x7fff65835000 - 0x7fff65869baf dyld (195.6 - ???) <0CD1B35B-A28F-32DA-B72E-452EAD609613> /usr/lib/dyld
0x7fff810df000 - 0x7fff810f6fff com.apple.CFOpenDirectory (10.7 - 144) <9709423E-8484-3B26-AAE8-EF58D1B8FB3F> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/Frameworks/CFOpen Directory.framework/Versions/A/CFOpenDirectory
0x7fff810f7000 - 0x7fff810f8fff liblangid.dylib (??? - ???) <CACBE3C3-2F7B-3EED-B50E-EDB73F473B77> /usr/lib/liblangid.dylib
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0x7fff888b9000 - 0x7fff888befff com.apple.OpenDirectory (10.7 - 146) <A674AB55-6E3D-39AE-9F9B-9865D0193020> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory
0x7fff888c4000 - 0x7fff888e0ff7 com.apple.GenerationalStorage (1.0 - 126.1) <509F52ED-E54B-3FEF-B3C2-759387B826E6> /System/Library/PrivateFrameworks/GenerationalStorage.framework/Versions/A/Gene rationalStorage
0x7fff889b1000 - 0x7fff889b4ff7 com.apple.securityhi (4.0 - 1) <B37B8946-BBD4-36C1-ABC6-18EDBC573F03> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SecurityHI.fr amework/Versions/A/SecurityHI
0x7fff889d0000 - 0x7fff889d6ff7 libunwind.dylib (30.0.0 - compatibility 1.0.0) <1E9C6C8C-CBE8-3F4B-A5B5-E03E3AB53231> /usr/lib/system/libunwind.dylib
0x7fff88a33000 - 0x7fff88d28ff7 com.apple.security (7.0 - 55148.6) <4535E500-973A-3BA7-AF65-DF5CF0658F02> /System/Library/Frameworks/Security.framework/Versions/A/Security
0x7fff88d29000 - 0x7fff88d6afff com.apple.QD (3.40 - ???) <47674D2C-BE88-388E-B1B0-03F08BFFE5FD> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ QD.framework/Versions/A/QD
0x7fff88de8000 - 0x7fff88debfff libRadiance.dylib (??? - ???) <CD89D70D-F177-3BAE-8A26-644EA7D5E28E> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libRadiance.dylib
0x7fff88dec000 - 0x7fff88e2cff7 libcups.2.dylib (2.9.0 - compatibility 2.0.0) <7D2E5016-A960-3ADE-B042-F74063E79550> /usr/lib/libcups.2.dylib
0x7fff88e2d000 - 0x7fff88f22fff libiconv.2.dylib (7.0.0 - compatibility 7.0.0) <5C40E880-0706-378F-B864-3C2BD922D926> /usr/lib/libiconv.2.dylib
0x7fff88f2f000 - 0x7fff88f39ff7 liblaunch.dylib (392.39.0 - compatibility 1.0.0) <8C235D13-2928-30E5-9E12-2CC3D6324AE2> /usr/lib/system/liblaunch.dylib
0x7fff88f3a000 - 0x7fff88fdffff com.apple.ink.framework (10.7.5 - 113) <1AE6676D-490A-36C2-B6CC-00F93AEB31DE> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Ink.framework /Versions/A/Ink
0x7fff8902a000 - 0x7fff8904bfff libPng.dylib (??? - ???) <E2B52527-4D0C-3595-BB13-8E8EF364E998> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libPng.dylib
0x7fff890e8000 - 0x7fff890f3ff7 libc++abi.dylib (14.0.0 - compatibility 1.0.0) <8FF3D766-D678-36F6-84AC-423C878E6D14> /usr/lib/libc++abi.dylib
0x7fff890f4000 - 0x7fff890f5ff7 libremovefile.dylib (21.1.0 - compatibility 1.0.0) <739E6C83-AA52-3C6C-A680-B37FE2888A04> /usr/lib/system/libremovefile.dylib
0x7fff890f6000 - 0x7fff89203fff libJP2.dylib (??? - ???) <6AF1F5FC-34D4-3278-BEBB-0712B81890B4> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libJP2.dylib
0x7fff89204000 - 0x7fff89205fff libdnsinfo.dylib (395.11.0 - compatibility 1.0.0) <853BAAA5-270F-3FDC-B025-D448DB72E1C3> /usr/lib/system/libdnsinfo.dylib
0x7fff8920a000 - 0x7fff89323fff com.apple.DesktopServices (1.6.5 - 1.6.5) <5E7DD5F4-B4DA-3F75-A14A-3494E81CFBA0> /System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/Desk topServicesPriv
0x7fff89acd000 - 0x7fff89aceff7 libsystem_sandbox.dylib (??? - ???) <5422BA4A-4C96-3BC1-AF83-14F0CED0ECB5> /usr/lib/system/libsystem_sandbox.dylib
0x7fff89e68000 - 0x7fff8a03cff7 com.apple.CoreFoundation (6.7.2 - 635.21) <62A3402E-A4E7-391F-AD20-1EF20236CE1B> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x7fff8a03d000 - 0x7fff8a0c1ff7 com.apple.ApplicationServices.ATS (317.12.0 - ???) <BE3C156D-8326-37AA-BC4E-D3C0D31BF976> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/ATS
0x7fff8a0c2000 - 0x7fff8a0d8fff libGL.dylib (??? - ???) <A4876AE9-DDFE-3B9A-874E-09BC29D46C39> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
0x7fff8a0d9000 - 0x7fff8a0dbff7 com.apple.print.framework.Print (7.4 - 247.3) <626C58D5-2841-3329-8C32-9F4A8353F3E7> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Print.framewo rk/Versions/A/Print
0x7fff8a130000 - 0x7fff8a1a6ff7 libc++.1.dylib (28.4.0 - compatibility 1.0.0) <A24FC3DA-4FFA-3DD2-9DCC-2B8D1B3BF97C> /usr/lib/libc++.1.dylib
0x7fff8a1a7000 - 0x7fff8ab45a27 com.apple.CoreGraphics (1.600.0 - ???) <576777EA-921B-3D94-98C3-40A9CF8EBD18> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/CoreGraphics
0x7fff8ab46000 - 0x7fff8ab81fff libsystem_info.dylib (??? - ???) <35F90252-2AE1-32C5-8D34-782C614D9639> /usr/lib/system/libsystem_info.dylib
0x7fff8abd6000 - 0x7fff8acb3fef libsystem_c.dylib (763.13.0 - compatibility 1.0.0) <41B43515-2806-3FBC-ACF1-A16F35B7E290> /usr/lib/system/libsystem_c.dylib
0x7fff8acb4000 - 0x7fff8ad10ff7 com.apple.HIServices (1.21 - ???) <B012EE97-D1CD-3F4B-812D-9AC7E6852FE6> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ HIServices.framework/Versions/A/HIServices
0x7fff8ad11000 - 0x7fff8ad1eff7 libbz2.1.0.dylib (1.0.5 - compatibility 1.0.0) <8EDE3492-D916-37B2-A066-3E0F054411FD> /usr/lib/libbz2.1.0.dylib
0x7fff8af11000 - 0x7fff8af44ff7 com.apple.GSS (2.2 - 2.0) <971395D0-B9D0-3FDE-B23F-6F9D0A2FB95F> /System/Library/Frameworks/GSS.framework/Versions/A/GSS
0x7fff8af45000 - 0x7fff8af7ffe7 com.apple.DebugSymbols (2.1 - 87) <ED2B177C-4146-3715-91DF-D99A8ED5449A> /System/Library/PrivateFrameworks/DebugSymbols.framework/Versions/A/DebugSymbol s
0x7fff8af80000 - 0x7fff8af81fff libunc.dylib (24.0.0 - compatibility 1.0.0) <C67B3B14-866C-314F-87FF-8025BEC2CAAC> /usr/lib/system/libunc.dylib
0x7fff8af82000 - 0x7fff8afd6ff7 com.apple.ScalableUserInterface (1.0 - 1) <1873D7BE-2272-31A1-8F85-F70C4D706B3B> /System/Library/Frameworks/QuartzCore.framework/Versions/A/Frameworks/ScalableU serInterface.framework/Versions/A/ScalableUserInterface
0x7fff8afd7000 - 0x7fff8b025fff libauto.dylib (??? - ???) <D8AC8458-DDD0-3939-8B96-B6CED81613EF> /usr/lib/libauto.dylib
0x7fff8b445000 - 0x7fff8b499fff libFontRegistry.dylib (??? - ???) <60FF9C2C-5E44-3C49-8A08-F26101898F21> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/Resources/libFontRegistry.dylib
0x7fff8b49a000 - 0x7fff8ba7efff libBLAS.dylib (??? - ???) <C34F6D88-187F-33DC-8A68-C0C9D1FA36DF> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libBLAS.dylib
0x7fff8ba8f000 - 0x7fff8baf7ff7 com.apple.audio.CoreAudio (4.0.3 - 4.0.3) <9987DC46-2A96-3BA0-B88B-04E573C0AD9B> /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio
0x7fff8bb01000 - 0x7fff8bb15ff7 com.apple.LangAnalysis (1.7.0 - 1.7.0) <04C31EF0-912A-3004-A08F-CEC27030E0B2> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ LangAnalysis.framework/Versions/A/LangAnalysis
0x7fff8bb16000 - 0x7fff8bb16fff com.apple.Cocoa (6.6 - ???) <021D4214-9C23-3CD8-AFB2-F331697A4508> /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa
0x7fff8bbcf000 - 0x7fff8bcd6fe7 libsqlite3.dylib (9.6.0 - compatibility 9.0.0) <EE02BB01-64C9-304D-9719-A35F5CD6D04C> /usr/lib/libsqlite3.dylib
0x7fff8bcd7000 - 0x7fff8bd23ff7 com.apple.SystemConfiguration (1.11.3 - 1.11) <0A7F1982-B4EA-3424-A0C7-FE46C6224F03> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfi guration
0x7fff8beb0000 - 0x7fff8beeafff libncurses.5.4.dylib (5.4.0 - compatibility 5.4.0) <387DE593-9CC5-38C7-911B-A5F2264D34F2> /usr/lib/libncurses.5.4.dylib
0x7fff8c15d000 - 0x7fff8c624fff FaceCoreLight (1.4.7 - compatibility 1.0.0) <BDD0E1DE-CF33-3AF8-B33B-4D1574CCC19D> /System/Library/PrivateFrameworks/FaceCoreLight.framework/Versions/A/FaceCoreLi ght
0x7fff8c68c000 - 0x7fff8c68ffff libCoreVMClient.dylib (??? - ???) <28CB0F3F-A202-391F-8CAC-FC9A1398A962> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCoreVMClien t.dylib
0x7fff8c690000 - 0x7fff8c6bbff7 libxslt.1.dylib (3.24.0 - compatibility 3.0.0) <E71220D3-8015-38EC-B97D-7FDB383C2BDC> /usr/lib/libxslt.1.dylib
0x7fff8c6e5000 - 0x7fff8c842fff com.apple.audio.toolbox.AudioToolbox (1.7.3 - 1.7.3) <5F1E4695-BC74-3ADD-8345-627BCD68201A> /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox
0x7fff8d5ac000 - 0x7fff8d5c2ff7 com.apple.ImageCapture (7.1.0 - 7.1.0) <1AD40E02-2126-377B-A0D2-CBB21D932558> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/ImageCapture. framework/Versions/A/ImageCapture
0x7fff8d5c3000 - 0x7fff8d623fff libvDSP.dylib (325.4.0 - compatibility 1.0.0) <3A7521E6-5510-3FA7-AB65-79693A7A5839> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libvDSP.dylib
0x7fff8d624000 - 0x7fff8d631fff libCSync.A.dylib (600.0.0 - compatibility 64.0.0) <72C53E7B-C222-3BE5-9984-FDC328CC4846> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
0x7fff8d632000 - 0x7fff8d68dff7 com.apple.opencl (2.0.19 - 2.0.19) <B05BF605-73B8-328F-A228-6FA59E1FC73A> /System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL
0x7fff8d86b000 - 0x7fff8d870fff libGIF.dylib (??? - ???) <58A4492D-AAE7-3B8F-8B06-62867471A3EE> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libGIF.dylib
0x7fff8d8f7000 - 0x7fff8d9f9fff libxml2.2.dylib (10.3.0 - compatibility 10.0.0) <AFBB22B7-07AE-3F2E-B88C-70BEEBFB8A86> /usr/lib/libxml2.2.dylib
0x7fff8dd49000 - 0x7fff8de55fff libcrypto.0.9.8.dylib (44.0.0 - compatibility 0.9.8) <3A8E1F89-5E26-3C8B-B538-81F5D61DBF8A> /usr/lib/libcrypto.0.9.8.dylib
0x7fff8de56000 - 0x7fff8de96fe7 libGLImage.dylib (??? - ???) <0B7DAB2B-F1C6-39C7-B864-61EF683B6656> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dyl ib
External Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 3
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 606
thread_create: 1
thread_set_state: 0
VM Region Summary:
ReadOnly portion of Libraries: Total=143.5M resident=102.0M(71%) swapped_out_or_unallocated=41.4M(29%)
Writable regions: Total=32.9M written=624K(2%) resident=3456K(10%) swapped_out=0K(0%) unallocated=29.6M(90%)
REGION TYPE VIRTUAL
=========== =======
CG image 4K
CG shared images 104K
CoreServices 800K
MALLOC 21.8M
MALLOC guard page 48K
STACK GUARD 56.0M
Stack 10.0M
VM_ALLOCATE 84K
__CI_BITMAP 80K
__DATA 12.9M
__IMAGE 528K
__LINKEDIT 49.1M
__TEXT 94.4M
__UNICODE 544K
mapped file 29.8M
shared memory 312K
=========== =======
TOTAL 276.4M
Model: MacBookPro4,1, BootROM MBP41.00C1.B03, 2 processors, Intel Core 2 Duo, 2.4 GHz, 4 GB, SMC 1.27f3
Graphics: NVIDIA GeForce 8600M GT, GeForce 8600M GT, PCIe, 256 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR2 SDRAM, 667 MHz, 0xCE00000000000000, 0x4D342037305435363633435A332D43453620
Memory Module: BANK 1/DIMM1, 2 GB, DDR2 SDRAM, 667 MHz, 0xCE00000000000000, 0x4D342037305435363633435A332D43453620
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8C), Broadcom BCM43xx 1.0 (5.10.131.36.15)
Bluetooth: Version 4.0.8f17, 2 service, 11 devices, 1 incoming serial ports
Network Service: smokerings, AirPort, en1
Serial ATA Device: FUJITSU MHY2200BH, 200.05 GB
Parallel ATA Device: MATSHITADVD-R UJ-867
USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0xfd400000 / 2
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x1a100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x820f, 0x1a110000 / 3
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0230, 0x5d200000 / 3
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x5d100000 / 2You probably need to reinstall OS X, but try this first.
Please read this whole message before doing anything.
This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.
Step 1
The purpose of this step is to determine whether the problem is localized to your user account.
Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
While logged in as Guest, you won’t have access to any of your personal files or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
Test while logged in as Guest. Same problem?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
*Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. The “Guest User” login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.
Step 2
The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login, or by a peripheral device.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of steps 1 and 2. -
Force Garbage Collection through scripting
Hi ,
I am using weblogic server 8.1.5 on windows 2003 server.
can we do force garbage collection through a script? If so can i have a sample script for the same?
OS:windows 2003 server
thanks in advance.
Madan MohanAnd the key here is "any length of time". I used to have WLDF notification on for all errors in the log file, but I specifically disabled it for the "almost out of memory" error, because it happened constantly, even when we didn't really have a memory problem. It's a little harder to determine the "any length of time" constraint. I'm not aware of an interface to "gc()" through WLST, which would be the most practical way to do this.
I think it's possible the "shape" of your free/used memory patterns would change if you changed your GC algorithm. If you're currently using a "stop the world" collector, the free memory percentage will probably decrease almost to zero before it collects. However, if you use a generational collector, it's possible in normal operation that you won't get down so close to zero before it collects. In that case, the "almost out of memory" error might be more meaningful.
Maybe you are looking for
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