CMS collection keep working during holiday
Jon.Masamitsu at Sun.COM
Mon Oct 6 13:12:32 PDT 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?
> 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.
>> I have another application with similar JVM options set and have exactly
>> 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
More information about the hotspot-gc-dev