[ https://issues.apache.org/jira/browse/HADOOP-12325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiaoyu Yao updated HADOOP-12325: -------------------------------- Resolution: Fixed Hadoop Flags: Reviewed Fix Version/s: 2.8.0 Status: Resolved (was: Patch Available) Thanks [~anu] for the contribution and [~ajisakaa] for the review. I've commit the change to trunk and branch-2. > RPC Metrics : Add the ability track and log slow RPCs > ----------------------------------------------------- > > Key: HADOOP-12325 > URL: https://issues.apache.org/jira/browse/HADOOP-12325 > Project: Hadoop Common > Issue Type: Improvement > Components: ipc, metrics > Affects Versions: 2.7.1 > Reporter: Anu Engineer > Assignee: Anu Engineer > Fix For: 2.8.0 > > Attachments: Callers of WritableRpcEngine.call.png, > HADOOP-12325.001.patch, HADOOP-12325.002.patch, HADOOP-12325.003.patch, > HADOOP-12325.004.patch, HADOOP-12325.005.patch, HADOOP-12325.005.test.patch, > HADOOP-12325.006.patch > > > This JIRA proposes to add a counter called RpcSlowCalls and also a > configuration setting that allows users to log really slow RPCs. Slow RPCs > are RPCs that fall at 99th percentile. This is useful to troubleshoot why > certain services like name node freezes under heavy load. -- This message was sent by Atlassian JIRA (v6.3.4#6332)