promotion failure dragonken at
Mon Oct 27 15:49:21 UTC 2008

Just for your information.

My java app is running very well now. Thanks to all of you.

Today I got a promotion failure at uptime = 10 days and triggered a 4
seconds full gc.

It is not a big problem as I can restart my app weekly or manually trigger
full gc (by jmap -histo -live at night).

JDK Version:

java version "1.6.0_07"
Java(TM) SE Runtime Environment (build 1.6.0_07-b06)
Java HotSpot(TM) 64-Bit Server VM (build 10.0-b23, mixed mode)

JVM options: -Xms4G -Xmx4G -XX:NewSize=1G
-XX:MaxNewSize=1G -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC
-XX:+UseParNewGC -XX:CMSInitiatingOccupancyFraction=70
-XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled
-XX:+UseCMSCompactAtFullCollection -XX:CMSFullGCsBeforeCompaction=0
-XX:MaxTenuringThreshold=1 -XX:SurvivorRatio=4 -XX:+HandlePromotionFailure
-XX:SoftRefLRUPolicyMSPerMB=0 -XX:+PrintGCDetails -XX:+PrintGCTaskTimeStamps
-XX:+PrintHeapAtGC -XX:+PrintTenuringDistribution -XX:+PrintReferenceGC

GC Log: gc.log 

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