On 13/08/10 22:24, Allen Wittenauer wrote:
On Aug 13, 2010, at 11:41 AM, Jinsong Hu wrote:
and run the namenode with the following jvm config
-Xmx1000m -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode
-XX:+DisableExplicitGC -XX:+HeapDumpOnOutOfMemoryError -XX:+UseCompressedOops
-XX:+DoEscapeAnalysis -XX:+AggressiveOpts -Xmx2G
Only 2g heap for NN?
This crashing problem doesn't happen with a small cluster of 4 datanodes. but
it happens with a cluster of 17 datanodes.
Bump your heap up and try again.
1. I'd worry about some of the XX options too, try turnining off the
more bleeding edge features
-XX:+DoEscapeAnalysis -XX:+AggressiveOpts
2. There's an -Xmx1000m and a -Xmx2G -you may only get a 1Gb heap
which is less than I'd use for an IDE.
