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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2018/07/25 05:35:00 UTC
[jira] [Commented] (HBASE-20936) BaseLoadBalancer throws
ArrayIndexOutOfBoundsException
[ https://issues.apache.org/jira/browse/HBASE-20936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16555159#comment-16555159 ]
stack commented on HBASE-20936:
-------------------------------
Looks like there is an old issue that shows same problem, HBASE-19263.
> BaseLoadBalancer throws ArrayIndexOutOfBoundsException
> ------------------------------------------------------
>
> Key: HBASE-20936
> URL: https://issues.apache.org/jira/browse/HBASE-20936
> Project: HBase
> Issue Type: Bug
> Components: Balancer
> Affects Versions: 2.0.1
> Reporter: stack
> Priority: Major
>
> I see the below in a test cluster. The balancer code has been in place a long time. Not sure why its doing the below. Will look later. Meantime, making a record of it.
> {code}
> 2018-07-24 22:03:43,261 INFO [master/ve0524:16000.Chore.1] balancer.StochasticLoadBalancer: start StochasticLoadBalancer.balancer, initCost=280.47655219381977, functionCost=RegionCountSkewCostFunction : (500.0, 0.4992354740061162); PrimaryRegionCountSkewCostFunction : (500.0, 0.0); MoveCostFunction : (7.0, 0.0); ServerLocalityCostFunction : (25.0, 0.5961002123692674); RackLocalityCostFunction : (15.0, 0.0); TableSkewCostFunction : (35.0, 0.3660578386605784); RegionReplicaHostCostFunction : (100000.0, 0.0); RegionReplicaRackCostFunction : (10000.0, 0.0); ReadRequestCostFunction : (5.0, 0.0); WriteRequestCostFunction : (5.0, 0.0); MemStoreSizeCostFunction : (5.0, 0.0); StoreFileCostFunction : (5.0, 0.6288571056819432);
> 2018-07-24 22:03:43,322 ERROR [master/ve0524:16000.Chore.1] hbase.ScheduledChore: Caught error
> java.lang.ArrayIndexOutOfBoundsException: 64
> at org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer$Cluster.removeRegion(BaseLoadBalancer.java:872)
> at org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer$Cluster.regionMoved(BaseLoadBalancer.java:827)
> at org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer$Cluster.doAction(BaseLoadBalancer.java:723)
> at org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.balanceCluster(StochasticLoadBalancer.java:399)
> at org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.balanceCluster(StochasticLoadBalancer.java:318)
> at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1514)
> at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1445)
> at org.apache.hadoop.hbase.master.balancer.BalancerChore.chore(BalancerChore.java:49)
> at org.apache.hadoop.hbase.ScheduledChore.run(ScheduledChore.java:186)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> at org.apache.hadoop.hbase.JitterScheduledThreadPoolExecutorImpl$JitteredRunnableScheduledFuture.run(JitterScheduledThreadPoolExecutorImpl.java:111)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> 2018-07-24 22:08:20,101 INFO [LruBlockCacheStatsExecutor] hfile.LruBlockCache: totalSize=4.61 MB, freeSize=6.14 GB, max=6.14 GB, blockCount=0, accesses=0, hits=0, hitRatio=0, cachingAccesses=0, cachingHits=0, cachingHitsRatio=0,evictions=119, evicted=0, evictedPerRun=0.0
> 2018-07-24 22:08:38,101 INFO [master/ve0524:16000.Chore.1] balancer.StochasticLoadBalancer: start StochasticLoadBalancer.balancer, initCost=280.4765419610035, functionCost=RegionCountSkewCostFunction : (500.0, 0.4992354740061162); PrimaryRegionCountSkewCostFunction : (500.0, 0.0); MoveCostFunction : (7.0, 0.0); ServerLocalityCostFunction : (25.0, 0.5961002123692674); RackLocalityCostFunction : (15.0, 0.0); TableSkewCostFunction : (35.0, 0.3660578386605784); RegionReplicaHostCostFunction : (100000.0, 0.0); RegionReplicaRackCostFunction : (10000.0, 0.0); ReadRequestCostFunction : (5.0, 0.0); WriteRequestCostFunction : (5.0, 0.0); MemStoreSizeCostFunction : (5.0, 0.0); StoreFileCostFunction : (5.0, 0.6288550591186913);
> 2018-07-24 22:08:38,103 ERROR [master/ve0524:16000.Chore.1] hbase.ScheduledChore: Caught error
> java.lang.ArrayIndexOutOfBoundsException: 100
> at org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer$Cluster.removeRegion(BaseLoadBalancer.java:872)
> at org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer$Cluster.regionMoved(BaseLoadBalancer.java:827)
> at org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer$Cluster.doAction(BaseLoadBalancer.java:723)
> at org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.balanceCluster(StochasticLoadBalancer.java:399)
> at org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.balanceCluster(StochasticLoadBalancer.java:318)
> at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1514)
> at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1445)
> at org.apache.hadoop.hbase.master.balancer.BalancerChore.chore(BalancerChore.java:49)
> at org.apache.hadoop.hbase.ScheduledChore.run(ScheduledChore.java:186)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> at org.apache.hadoop.hbase.JitterScheduledThreadPoolExecutorImpl$JitteredRunnableScheduledFuture.run(JitterScheduledThreadPoolExecutorImpl.java:111)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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