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Hadoop QA commented on HBASE-14479: ----------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 3s {color} | {color:red} HBASE-14479 does not apply to master. Rebase required? Wrong Branch? See https://yetus.apache.org/documentation/0.2.1/precommit-patchnames for help. {color} | \\ \\ || Subsystem || Report/Notes || | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12819646/HBASE-14479-V4-experimental_branch-1.patch | | JIRA Issue | HBASE-14479 | | Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/2729/console | | Powered by | Apache Yetus 0.2.1 http://yetus.apache.org | This message was automatically generated. > Apply the Leader/Followers pattern to RpcServer's Reader > -------------------------------------------------------- > > Key: HBASE-14479 > URL: https://issues.apache.org/jira/browse/HBASE-14479 > Project: HBase > Issue Type: Improvement > Components: IPC/RPC, Performance > Reporter: Hiroshi Ikeda > Assignee: Hiroshi Ikeda > Priority: Minor > Attachments: HBASE-14479-V2 (1).patch, HBASE-14479-V2.patch, > HBASE-14479-V2.patch, HBASE-14479-V3-experimental_branch-1.patch, > HBASE-14479-V4-experimental_branch-1.patch, HBASE-14479.patch, > flamegraph-19152.svg, flamegraph-32667.svg, gc.png, gets.png, io.png, > median.png > > > {{RpcServer}} uses multiple selectors to read data for load distribution, but > the distribution is just done by round-robin. It is uncertain, especially for > long run, whether load is equally divided and resources are used without > being wasted. > Moreover, multiple selectors may cause excessive context switches which give > priority to low latency (while we just add the requests to queues), and it is > possible to reduce throughput of the whole server. -- This message was sent by Atlassian JIRA (v6.3.4#6332)