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https://issues.apache.org/jira/browse/HBASE-18772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yechao Chen updated HBASE-18772:
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Attachment: HBASE-18772.master-v3.patch
update the patch ：change
LruBlockCache#dataBlockSize，LruBlockCache#dataBlockElements
AdaptiveLifoCoDelCallQueue#numLifoModeSwitches，AdaptiveLifoCoDelCallQueue#numGeneralCallsDropped
> [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
>
>
> RCurrently 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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