CMS collection keep working during holiday

Jon Masamitsu Jon.Masamitsu at Sun.COM
Mon Oct 6 20:12:32 UTC 2008



On 10/06/08 10:58, Ken-- at newsgroupstats.hk wrote:
> Just for info. I double check with the vm options, I did edit the startup bat
> to disable auto duty cycle of CMS at 2/10 morning.

How did you change the flags for 2/10 from those below?

> 
> Regards,
> Ken
> 
> 
> Ken-- at newsgroupstats.hk wrote:
>> Thanks for your quick response. The application started at 1/10 was crash
>> this morning. I lost the gc log file as I quickly restart the application
>> to avoid service interruption to our clients.
>>
>> From the hotspot error file(attached), it show that it crash when old
>> generation 99% full. Anyway, it's another problem.
>>
>>  http://www.nabble.com/file/p19841670/hs_err_pid2476.log
>> hs_err_pid2476.log 
>>
>> I have another application with similar JVM options set and have exactly
>> behavior:
>>
>> JVM Options:
>>
>> -Djava.security.policy=./java.policy -XX:+PrintGCDetails
>> -XX:+PrintGCTaskTimeStamps -XX:+PrintHeapAtGC
>> -Xloggc:hkexquoteserver_gc.log -Xms4G -Xmx4G -XX:NewSize=1G
>> -XX:MaxNewSize=1G -XX:+PrintTenuringDistribution -XX:+DisableExplicitGC
>> -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:SurvivorRatio=4
>> -XX:CMSInitiatingOccupancyFraction=70 -XX:TargetSurvivorRatio=90
>> -Dcom.sun.management.jmxremote.port=18003
>> -Dcom.sun.management.jmxremote.authenticate=false
>> -Dcom.sun.management.jmxremote.ssl=false 
>>




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