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https://issues.apache.org/jira/browse/HADOOP-12325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhe Zhang updated HADOOP-12325:
-------------------------------
Resolution: Fixed
Fix Version/s: 2.7.4
Status: Resolved (was: Patch Available)
I verified test failures and pushed to branch-2.7.
> 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, 2.7.4, 3.0.0-alpha1
>
> Attachments: Callers of WritableRpcEngine.call.png,
> HADOOP-12325-branch-2.7.00.patch, 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.
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