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Hadoop QA commented on HBASE-15146: ----------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 6s {color} | {color:red} HBASE-15146 does not apply to master. Rebase required? Wrong Branch? See https://yetus.apache.org/documentation/latest/precommit-patchnames for help. {color} | \\ \\ || Subsystem || Report/Notes || | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12783727/HBASE-15146.4.patch | | JIRA Issue | HBASE-15146 | | Powered by | Apache Yetus 0.1.0 http://yetus.apache.org | | Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/243/console | This message was automatically generated. > Don't block on Reader threads queueing to a scheduler queue > ----------------------------------------------------------- > > Key: HBASE-15146 > URL: https://issues.apache.org/jira/browse/HBASE-15146 > Project: HBase > Issue Type: Bug > Affects Versions: 1.2.0 > Reporter: Elliott Clark > Assignee: Elliott Clark > Priority: Blocker > Fix For: 1.2.0 > > Attachments: HBASE-15146.0.patch, HBASE-15146.1.patch, > HBASE-15146.2.patch, HBASE-15146.3.patch, HBASE-15146.4.patch > > > Blocking on the epoll thread is awful. The new rpc scheduler can have lots of > different queues. Those queues have different capacity limits. Currently the > dispatch method can block trying to add the the blocking queue in any of the > schedulers. > This causes readers to block, tcp acks are delayed, and everything slows down. -- This message was sent by Atlassian JIRA (v6.3.4#6332)