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Posted to dev@phoenix.apache.org by "yang ming (JIRA)" <ji...@apache.org> on 2014/05/30 05:32:02 UTC
[jira] [Commented] (PHOENIX-1012)
org.apache.phoenix.filter.SkipScanFilter.navigate cause cpu usage 100%
[ https://issues.apache.org/jira/browse/PHOENIX-1012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14013257#comment-14013257 ]
yang ming commented on PHOENIX-1012:
------------------------------------
{color:red}
while (position[i] < slots.get(i).size() && slots.get(i).get(position[i]).compareUpperToLowerBound(ptr) < 0) {
position[i]++;
}
{color}
It is a endless loop,In which scene this will happen?
> org.apache.phoenix.filter.SkipScanFilter.navigate cause cpu usage 100%
> ----------------------------------------------------------------------
>
> Key: PHOENIX-1012
> URL: https://issues.apache.org/jira/browse/PHOENIX-1012
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 3.0.0
> Environment: hbase-0.94.19
> Reporter: yang ming
> Priority: Critical
>
> With jvm monitor we found org.apache.phoenix.filter.SkipScanFilter.navigate cause cpu usage 100%.
> org.apache.phoenix.filter.SkipScanFilter.navigate(SkipScanFilter.java:287)
> jstack:
> "IPC Server handler 97 on 60020" daemon prio=10 tid=0x00002aaac8727800 nid=0x35dc runnable [0x000000004aa6d000]
> java.lang.Thread.State: RUNNABLE
> at org.apache.phoenix.filter.SkipScanFilter.navigate(SkipScanFilter.java:287)
> at org.apache.phoenix.filter.SkipScanFilter.filterKeyValue(SkipScanFilter.java:112)
> at org.apache.hadoop.hbase.regionserver.ScanQueryMatcher.match(ScanQueryMatcher.java:354)
> at org.apache.hadoop.hbase.regionserver.StoreScanner.next(StoreScanner.java:390)
> at org.apache.hadoop.hbase.regionserver.KeyValueHeap.next(KeyValueHeap.java:143)
> at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.populateResult(HRegion.java:4047)
> at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:4123)
> at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:3990)
> at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:3980)
> at org.apache.phoenix.coprocessor.GroupedAggregateRegionObserver.scanUnordered(GroupedAggregateRegionObserver.java:382)
> at org.apache.phoenix.coprocessor.GroupedAggregateRegionObserver.doPostScannerOpen(GroupedAggregateRegionObserver.java:133)
> at org.apache.phoenix.coprocessor.BaseScannerRegionObserver.postScannerOpen(BaseScannerRegionObserver.java:66)
> at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.postScannerOpen(RegionCoprocessorHost.java:1316)
> at org.apache.hadoop.hbase.regionserver.HRegionServer.internalOpenScanner(HRegionServer.java:2588)
> at org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:2556)
> at sun.reflect.GeneratedMethodAccessor116.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:323)
> at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1434)
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