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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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stack reopened HBASE-18772:
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Reopen
On master branch I get this:
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T E S T S
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Running org.apache.hadoop.hbase.ipc.TestSimpleRpcScheduler
Tests run: 7, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 8.183 sec <<<
FAILURE! - in org.apache.hadoop.hbase.ipc.TestSimpleRpcScheduler
testCoDelScheduling(org.apache.hadoop.hbase.ipc.TestSimpleRpcScheduler) Time
elapsed: 0.191 sec <<< ERROR!
java.lang.UnsupportedOperationException: Unable to find suitable constructor
for class org.apache.hadoop.hbase.ipc.AdaptiveLifoCoDelCallQueue
at
org.apache.hadoop.hbase.ipc.TestSimpleRpcScheduler.testCoDelScheduling(TestSimpleRpcScheduler.java:444)
Results :
Tests in error:
TestSimpleRpcScheduler.testCoDelScheduling:444 » UnsupportedOperation Unable
t...
Tests run: 7, Failures: 0, Errors: 1, Skipped: 0
Its an ugly failure because we spec rpcexecutor with atomiclongs and the
constructor was changed to longadder... but we get there via reflection.
> [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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