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https://issues.apache.org/jira/browse/HBASE-18772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16165944#comment-16165944
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Yechao Chen edited comment on HBASE-18772 at 9/14/17 8:31 AM:
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ReflectionUtils.newInstance(queueClass, queueInitArgs));
queueInitArgs = new Object[] { maxQueueLength, codelTargetDelay, codelInterval,
codelLifoThreshold, numGeneralCallsDropped, numLifoModeSwitches };
Sorry for
that，RpcExecutor#numGeneralCallsDropped，RpcExecutor#numLifoModeSwitches need to
change LongADDER.
will submit a patch later
was (Author: chenyechao):
ReflectionUtils.newInstance(queueClass, queueInitArgs));
queueInitArgs = new Object[] { maxQueueLength, codelTargetDelay, codelInterval,
codelLifoThreshold, {color:red}numGeneralCallsDropped{color},
{color:red}numLifoModeSwitches {color}};
Sorry for
that，RpcExecutor#numGeneralCallsDropped，RpcExecutor#numLifoModeSwitches need to
change LongADDER.
will submit a patch later
> [JDK8] Replace AtomicLong with LongAdder
> -----------------------------------------
>
> Key: HBASE-18772
> URL: https://issues.apache.org/jira/browse/HBASE-18772
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0-alpha-2
> Reporter: Yechao Chen
> Assignee: Yechao Chen
> Priority: Trivial
> Fix For: 2.0.0-beta-1
>
> Attachments: HBASE-18772.master.patch, HBASE-18772.master-v2.patch,
> HBASE-18772.master-v3.patch, HBASE-18772.master-v4.patch
>
>
> Currently we use many AtomicLong in HBase Region Code ，such as BucketCache
> calss realCacheSize,heapSize,blockNumber,accessCount and HRegion calss
> compactionNumBytesCompacted etc .
> In JDK8 LongAdder is faster than AtomicLong ,should use this replace
> AtomicLong
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