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1. 3852649
lodgemonkey Sep 14, 2004 1:39 PM (in response to surajmundada)Author field in Forum (bb module) should not change after the thread has been started. But several times I have seen incorrect values in Last Post and/or Author fields.
As of right now, there are 2 examples:
http://www.jboss.org/index.html?module=bb&op=viewtopic&t=46415
cooper started this thread, but the HTML generated for the listing in the index
http://www.jboss.org/index.html?module=bb&op=viewforum&f=180
shows dong203 as the originator:<tr> <td class="row1" align="center" valign="middle" width="20"><img src="modules/bb/templates/subSilver/images/folder_announce.gif" width="19" height="18" alt="No new posts" title="No new posts" /></td> <td class="row1" width="100%"><span class="topictitle"><b>Announcement:</b> <a href="index.html?module=bb&op=viewtopic&t=46415" class="topictitle">Nukes 1.0</a></span><span class="gensmall"><br /> </span></td> <td class="row2" align="center" valign="middle"><span class="postdetails">9</span></td> <td class="row3" align="center" valign="middle"><span class="name"><a href="index.html?module=user&op=userinfo&uid=48127">dong203</a></span></td> <td class="row2" align="center" valign="middle"><span class="postdetails">931</span></td> <td class="row3Right" align="center" valign="middle" nowrap="nowrap"><span class="postdetails">Thu Apr 15, 2004 03:33 AM<br /><a href="index.html?module=user&op=userinfo&uid=45675">hxp</a> <a href="index.html?module=bb&op=viewtopic&p=3830710#3830710"><img src="modules/bb/templates/subSilver/images/icon_latest_reply.gif" alt="View latest post" title="View latest post" border="0"/></a></span></td> </tr>
http://www.jboss.org/index.html?module=bb&op=viewtopic&t=44058
dphiggs started the thread, but the HTML generated for the listing in the index
http://www.jboss.org/index.html?module=bb&op=viewforum&f=163
shows cooper as the originator:<tr> <td class="row1" align="center" valign="middle" width="20"><img src="modules/bb/templates/subSilver/images/folder.gif" width="19" height="18" alt="No new posts" title="No new posts" /></td> <td class="row1" width="100%"><span class="topictitle"><a href="index.html?module=bb&op=viewtopic&t=44058" class="topictitle">How does Nukes evalute statements like $ {config:siteName}?</a></span><span class="gensmall"><br /> </span></td> <td class="row2" align="center" valign="middle"><span class="postdetails">3</span></td> <td class="row3" align="center" valign="middle"><span class="name"><a href="index.html?module=user&op=userinfo&uid=2539">cooper</a></span></td> <td class="row2" align="center" valign="middle"><span class="postdetails">73</span></td> <td class="row3Right" align="center" valign="middle" nowrap="nowrap"><span class="postdetails">Wed Apr 21, 2004 05:05 AM<br /><a href="index.html?module=user&op=userinfo&uid=45675">hxp</a> <a href="index.html?module=bb&op=viewtopic&p=3831721#3831721"><img src="modules/bb/templates/subSilver/images/icon_latest_reply.gif" alt="View latest post" title="View latest post" border="0"/></a></span></td> </tr>
Note that the erroneous value is always the id of someone who did post on that thread.
-- Howard -
2. Re: Full GC !!! Good or bad ?
dtauzell Sep 14, 2004 2:59 PM (in response to surajmundada)What do you have for your -Xms and -Xmx settings?
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3. Re: Full GC !!! Good or bad ?
surajmundada Sep 15, 2004 4:22 AM (in response to surajmundada)Hi,
Thanks for the reply.
I didn't know about -Xms and -Xmx settings before this.
I searched for that and learnt that they are JVM memory settings.
I am using JDK 1.4.2_02 with default settings. ( How should I check default settings ? I saw the commands to set the -Xms and -Xmx values but no commands to see the default values )
From all documents and discussions I read, it is clear that default memory settings are not suitable for something like JBoss application.
What settings should I use ?
Regards,
Suraj -
4. 3848722
cjain75 Sep 15, 2004 10:17 AM (in response to surajmundada)Hey Suraj,
Make the following entries in your run.bat file of Jboss
set JAVA_OPTS=%JAVA_OPTS% -server -Xms512m -Xmx512m -XX:MaxPermSize=512m -XX:+AggressiveHeap
For more JVM Options Chk out on the Sun Web Site.
http://java.sun.com/docs/hotspot/VMOptions.html
Regards,
Chetan. -
5. Re: Full GC !!! Good or bad ?
anil.saldhana Sep 16, 2004 1:14 AM (in response to surajmundada)By default, Sun's JVM runs on 64MB. Full GC is bad for performance. Try to use the latest JDK.
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6. Re: Full GC !!! Good or bad ?
surajmundada Sep 20, 2004 1:49 AM (in response to surajmundada)Hi,
My system make up is as follow:
System Configuration: Sun Microsystems sun4u Sun Enterprise 220R (2 X UltraSPARC-II 450MHz)
System clock frequency: 113 MHz
Memory size: 2048 Megabytes
Filesystem size used avail capacity Mounted on
swap 1.6G 168K 1.6G 1% /var/run
swap 1.6G 48K 1.6G 1% /tmp
======= SOFTWARE ===========
Sendmail
Postgres Version 7.3.2
Apache 1.3.27 (Unix) mod_ssl/2.8.14 OpenSSL/0.9.7b
PHP Version 4.3.1
Java /usr/j2sdk1.4.2_03/bin/java
Corda50 /opt/Corda50
JBOSS /opt/jboss-3.2.1_tomcat-4.1.24
MySQL Version - 3.23.49
Oracle oci8 /oracleroot/app/oracle/product/8.1.7
======= SOFTWARE ===========
Would allocating 512 MB of memory for JVM would be a good move ?
Regards,
Suraj -
7. Re: Full GC !!! Good or bad ?
jicken Sep 21, 2004 4:31 AM (in response to surajmundada)just a hint:
use jvmstat to see what's going on with your memory and start playing with the values:
http://developers.sun.com/dev/coolstuff/jvmstat/./jvmps
and./visualgc <processid>
does the trick. -
8. Re: Full GC !!! Good or bad ?
surajmundada Oct 18, 2004 5:48 AM (in response to surajmundada)Hi,
Sorry for late reply.
I added following line in run.sh file.JAVA_OPTS = $JAVA_OPTS -Xms512m -Xmx512m -XX:MaxPermSize=512m -XX:+AggressiveHeap
But when JBoss starts, it shows following environment./jboss-3.2.1_tomcat-4.1.24/bin/run.sh: JAVA_OPTS: not found
================================================================================
JBoss Bootstrap Environment
JBOSS_HOME: /opt/jboss-3.2.1_tomcat-4.1.24
JAVA: /usr/j2sdk1.4.2_03/bin/java
JAVA_OPTS: -server -Xms256m -Xmx512m -verbosegc -Dprogram.name=run.sh
CLASSPATH: /opt/jboss-3.2.1_tomcat-4.1.24/bin/run.jar:/usr/j2sdk1.4.2_03/lib/tools.jar
================================================================================
02:46:45,783 INFO [Server] Starting JBoss (MX MicroKernel)...
02:46:45,788 INFO [Server] Release ID: JBoss [Wonde
That means, new value for JAVA_OPTS is not working.
I added the line as follows:# Setup JBoss sepecific properties JAVA_OPTS="$JAVA_OPTS -Dprogram.name=$PROGNAME" # For Cygwin, switch paths to Windows format before running java if $cygwin; then JBOSS_HOME=`cygpath --path --windows "$JBOSS_HOME"` JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` JBOSS_CLASSPATH=`cygpath --path --windows "$JBOSS_CLASSPATH"` fi JAVA_OPTS = $JAVA_OPTS -Xms512m -Xmx512m -XX:MaxPermSize=512m -XX:+AggressiveHeap
I am still facing the same problem.
Any help ?
Thanks & Regards,
Suraj -
9. Re: Full GC !!! Good or bad ?
jicken Oct 18, 2004 12:08 PM (in response to surajmundada)try
JAVA_OPTS="$JAVA_OPTS [youropts]"
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10. Re: Full GC !!! Good or bad ?
surajmundada Oct 20, 2004 1:04 AM (in response to surajmundada)Hi,
This worked but the new problem is old JVM memory settings are not overwritten, as shown in the following environment:ash-2.05$ /opt/jboss-3.2.1_tomcat-4.1.24/bin/run.sh: -: not found ================================================================================ JBoss Bootstrap Environment JBOSS_HOME: /opt/jboss-3.2.1_tomcat-4.1.24 JAVA: /usr/j2sdk1.4.2_03/bin/java JAVA_OPTS: -server -Xms256m -Xmx512m -verbosegc -Dprogram.name=run.sh -Xms512m -Xmx512m -XX:MaxPermSize=512m -XX:+AggressiveHeap CLASSPATH: /opt/jboss-3.2.1_tomcat-4.1.24/bin/run.jar:/usr/j2sdk1.4.2_03/lib/tools.jar ================================================================================ 22:08:14,773 INFO [Server] Starting JBoss (MX MicroKernel)... 22:08:14,779 INFO [Server] Release ID: JBoss [WonderLand] 3.2.1 (build: CVSTag=JBoss_3_2_1
I also cross checked this withbash-2.05$ ps -aef|grep java root 5752 1 0 22:08:14 pts/2 2:31 /usr/j2sdk1.4.2_03/bin/java -server -Xms256m -Xmx512m -verbosegc -Dprogram.name root 5925 1 0 Sep 16 ? 24:31 /usr/java/bin/java -Dviper.fifo.path=/var/run/smc898/boot.fifo -Xmx128m -Djava. maxuser 5755 5623 0 22:13:45 pts/1 0:00 grep java bash-2.05$
PID 5752 stands for JBoss.
What should I do next ?
Regards,
Suraj -
11. Re: Full GC !!! Good or bad ?
adrian.brock Oct 20, 2004 1:19 AM (in response to surajmundada)You have the configuration twice, probably also in run.conf?
FAQs are there for a reason:
http://java.sun.com/docs/hotspot/gc1.4.2/faq.html
Number 33 -
12. Re: Full GC !!! Good or bad ?
surajmundada Oct 20, 2004 6:37 AM (in response to surajmundada)Hi,
Thanks a lot for all the help.
things are going fine now.
I changed JAVA_OPTS in run.conf with all parameters which I was trying to update in run.sh file.
Also, "-XX:+DisableExplicitGC" option also seems to be working which I got from FAQs on JAVA as suggested by Adrian.
my JAVA_OPTS finally looks likeJAVA_OPTS="-server -Xms512m -Xmx512m -verbosegc -XX:+PrintGCDetails -XX:+DisableExplicitGC -XX:Max PermSize=512m -XX:+AggressiveHeap"
FULL GC messages have stopped flashing. only[GC 185088K->181933K(508928K), 0.3384651 secs] [GC 189037K->26521K(505600K), 0.2031701 secs] [GC 185753K->177241K(505600K), 0.1564887 secs] [GC 183449K->24697K(505024K), 0.2648330 secs] [GC 182777K->177109K(505024K), 0.1530459 secs] [GC 183125K->23954K(504896K), 0.0878689 secs]
statements are occuring. But I guess, that's going to happen in any case. Also, they don't occur frequently as was the earlier case.
Regards,
Suraj