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Posted to issues@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2015/10/23 20:49:27 UTC
[jira] [Commented] (HBASE-14266) RegionServers have a lock
contention of Configuration.getProps
[ https://issues.apache.org/jira/browse/HBASE-14266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14971601#comment-14971601 ]
Andrew Purtell commented on HBASE-14266:
----------------------------------------
Are you still working on this [~graziergeek]? If not I can take it.
> RegionServers have a lock contention of Configuration.getProps
> --------------------------------------------------------------
>
> Key: HBASE-14266
> URL: https://issues.apache.org/jira/browse/HBASE-14266
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Environment: hbase-0.98.6-cdh5.3.1
> Reporter: Toshihiro Suzuki
> Assignee: Jeff Cunningham
> Priority: Critical
> Attachments: HBASE-14266.patch, thread_dump.txt
>
>
> Here's an extract from thread dump of the RegionServer of my cluster:
> {code}
> ...
> Thread 267 (RW.default.readRpcServer.handler=184,queue=15,port=60020):
> State: BLOCKED
> Blocked count: 204028
> Waited count: 9702639
> Blocked on org.apache.hadoop.conf.Configuration@5a5e3da
> Blocked by 250 (RW.default.readRpcServer.handler=167,queue=18,port=60020)
> Stack:
> org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2250)
> org.apache.hadoop.conf.Configuration.get(Configuration.java:861)
> org.apache.hadoop.conf.Configuration.getTrimmed(Configuration.java:880)
> org.apache.hadoop.conf.Configuration.getBoolean(Configuration.java:1281)
> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:138)
> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:157)
> org.apache.hadoop.hbase.regionserver.HStore.createScanner(HStore.java:1804)
> org.apache.hadoop.hbase.regionserver.HStore.getScanner(HStore.java:1794)
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.<init>(HRegion.java:3852)
> org.apache.hadoop.hbase.regionserver.HRegion.instantiateRegionScanner(HRegion.java:1952)
> org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1938)
> org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1915)
> org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4872)
> org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4847)
> org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:2918)
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29921)
> org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2031)
> org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108)
> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:116)
> org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:96)
> ...
> {code}
> There are such many threads in the thread dump.
> I think that RegionServers have a lock contention which causes performance issue.
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Re: [jira] [Commented] (HBASE-14266) RegionServers have a lock contention of Configuration.getProps
Posted by Jeff Cunningham <jc...@splicemachine.com>.
Please do Andrew. Thanks.
> On Oct 23, 2015, at 1:49 PM, Andrew Purtell (JIRA) <ji...@apache.org> wrote:
>
>
> [ https://issues.apache.org/jira/browse/HBASE-14266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14971601#comment-14971601 ]
>
> Andrew Purtell commented on HBASE-14266:
> ----------------------------------------
>
> Are you still working on this [~graziergeek]? If not I can take it.
>
>> RegionServers have a lock contention of Configuration.getProps
>> --------------------------------------------------------------
>>
>> Key: HBASE-14266
>> URL: https://issues.apache.org/jira/browse/HBASE-14266
>> Project: HBase
>> Issue Type: Improvement
>> Components: regionserver
>> Environment: hbase-0.98.6-cdh5.3.1
>> Reporter: Toshihiro Suzuki
>> Assignee: Jeff Cunningham
>> Priority: Critical
>> Attachments: HBASE-14266.patch, thread_dump.txt
>>
>>
>> Here's an extract from thread dump of the RegionServer of my cluster:
>> {code}
>> ...
>> Thread 267 (RW.default.readRpcServer.handler=184,queue=15,port=60020):
>> State: BLOCKED
>> Blocked count: 204028
>> Waited count: 9702639
>> Blocked on org.apache.hadoop.conf.Configuration@5a5e3da
>> Blocked by 250 (RW.default.readRpcServer.handler=167,queue=18,port=60020)
>> Stack:
>> org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2250)
>> org.apache.hadoop.conf.Configuration.get(Configuration.java:861)
>> org.apache.hadoop.conf.Configuration.getTrimmed(Configuration.java:880)
>> org.apache.hadoop.conf.Configuration.getBoolean(Configuration.java:1281)
>> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:138)
>> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:157)
>> org.apache.hadoop.hbase.regionserver.HStore.createScanner(HStore.java:1804)
>> org.apache.hadoop.hbase.regionserver.HStore.getScanner(HStore.java:1794)
>> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.<init>(HRegion.java:3852)
>> org.apache.hadoop.hbase.regionserver.HRegion.instantiateRegionScanner(HRegion.java:1952)
>> org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1938)
>> org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1915)
>> org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4872)
>> org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4847)
>> org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:2918)
>> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29921)
>> org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2031)
>> org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108)
>> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:116)
>> org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:96)
>> ...
>> {code}
>> There are such many threads in the thread dump.
>> I think that RegionServers have a lock contention which causes performance issue.
>
>
>
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