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https://issues.apache.org/jira/browse/HBASE-18772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16165827#comment-16165827
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Chia-Ping Tsai commented on HBASE-18772:
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{code}
22:15:35 mvn -Dmaven.repo.local=/home/jenkins/yetus-m2/hbase-master-patch-0
-DHBasePatchProcess -PrunAllTests
-Dtest.exclude.pattern=**/master.assignment.TestMergeTableRegionsProcedure.java,**/client.TestBlockEvictionFromClient.java,**/procedure2.TestProcedureSchedulerConcurrency.java,**/master.assignment.TestAssignmentManager.java,**/master.balancer.TestFavoredStochasticLoadBalancer.java,**/ipc.TestSimpleRpcScheduler.java,**/regionserver.TestCompactionInDeadRegionServer.java,**/client.TestReplicasClient.java,**/regionserver.wal.TestAsyncLogRolling.java,**/regionserver.TestEncryptionKeyRotation.java,**/master.procedure.TestProcedureAdmin.java,**/client.TestSnapshotWithAcl.java,**/quotas.TestSnapshotQuotaObserverChore.java,**/master.TestCatalogJanitor.java,**/quotas.TestQuotaThrottle.java,**/security.access.TestAccessController.java,**/TestZooKeeper.java,**/master.TestRestartCluster.java,**/client.locking.TestEntityLocks.java,**/master.balancer.TestDefaultLoadBalancer.java,**/coprocessor.TestRegionObserverInterface.java,**/client.TestReplicaWithCluster.java,**/io.hfile.TestLruBlockCache.java,**/client.TestMetaWithReplicas.java,**/regionserver.TestSplitTransactionOnCluster.java,**/master.TestDistributedLogSplitting.java,**/client.TestMultiParallel.java,**/snapshot.TestFlushSnapshotFromClient.java,**/regionserver.TestHRegion.java,**/regionserver.TestFSErrorsExposed.java,**/master.cleaner.TestHFileCleaner.java
clean test -fae > /testptch/patchprocess/patch-unit-hbase-server.txt 2>&1
{code}
TestSimpleRpcScheduler was in the flaky list, so it is skipped. Sorry for
ignoring it.
> [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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