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From "Wei-Chiu Chuang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-16286) Add opentracing into KMS server/client
Date Thu, 09 May 2019 23:51:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-16286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16836787#comment-16836787

Wei-Chiu Chuang commented on HADOOP-16286:

This is a work in progress, but I have to post it now otherwise I'll forget: [https://github.com/jojochuang/hadoop-common/commits/HADOOP-16286_CDH]

> Add opentracing into KMS server/client
> --------------------------------------
>                 Key: HADOOP-16286
>                 URL: https://issues.apache.org/jira/browse/HADOOP-16286
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Wei-Chiu Chuang
>            Assignee: Wei-Chiu Chuang
>            Priority: Major
> Recently, while I worked on KMS-o-meter tool, a workload replay tool for KMS, I added
opentracing in it and in KMS server/client.(courtesy of Elek, Marton's tracing work in ozone,
I simply took a part of it). The ability to understand system performance in such details
is unprecedented. We were able to fix a system scalability bug, verify it in record time.
> File this jira to contribute the opentracing code in KMS server/client back to the community.

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