Jean-Daniel Cryans created HBASE-9267:
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Summary: StochasticLoadBalancer goes over its processing time limit
Key: HBASE-9267
URL: https://issues.apache.org/jira/browse/HBASE-9267
Project: HBase
Issue Type: Bug
Affects Versions: 0.95.2
Reporter: Jean-Daniel Cryans
Assignee: Elliott Clark
Fix For: 0.98.0, 0.95.3
I trying out 0.95.2, I left it running over the weekend (8 RS, average load
between 12 and 3 regions) and right now the balancer runs for 12 mins:
bq. 2013-08-19 21:54:45,534 DEBUG
[jdec2hbase0403-1.vpc.cloudera.com,60000,1376689696384-BalancerChore]
org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer: Could not find
a better load balance plan. Tried 0 different configurations in 777309ms, and
did not find anything with a computed cost less than 36.32576937689094
It seems it slowly crept up there, yesterday it was doing:
bq. 2013-08-18 20:53:17,232 DEBUG
[jdec2hbase0403-1.vpc.cloudera.com,60000,1376689696384-BalancerChore]
org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer: Could not find
a better load balance plan. Tried 0 different configurations in 257374ms, and
did not find anything with a computed cost less than 36.3251082542424
And originally it was doing 1 minute.
In the jstack I see a 1000 of these and jstack doesn't want to show me the
whole thing:
bq. at java.util.SubList$1.nextIndex(AbstractList.java:713)
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