[
https://issues.apache.org/jira/browse/HBASE-18772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16157385#comment-16157385
]
Anoop Sam John commented on HBASE-18772:
----------------------------------------
Looking at the LongAdder class, seems the Heap requirement for it is much more
compared to AtomicLong. The fields in BucketCache#BucketEntry should be
carefully selected considering the heap overhead also.
> [JDK8] Replace AuomicLog 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
>
>
> Currently we use many AtomicLong in HBase Region Code ，such as BucketCache
> calss realCacheSize,heapSize,blockNumber,accessCount and Hegion calss
> compactionNumBytesCompacted etc .
> In JDK8 LongAdder is faster than AtomicLong ,should use this replace
> AtomicLong
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
