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From "Siyao Meng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15566) Support Opentracing
Date Tue, 07 May 2019 18:43:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16835016#comment-16835016
] 

Siyao Meng commented on HADOOP-15566:
-------------------------------------

[~bogdandrutu] Thanks. We'll look into that a bit.
As long as OpenTelemetry has similar APIs to OpenTracing, it shouldn't be hard to migrate.
And it doesn't contradict with the current goal of minimizing changes to the existing Hadoop
codebase.

> Support Opentracing
> -------------------
>
>                 Key: HADOOP-15566
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15566
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: metrics, tracing
>    Affects Versions: 3.1.0
>            Reporter: Todd Lipcon
>            Assignee: Siyao Meng
>            Priority: Major
>              Labels: security
>         Attachments: Screen Shot 2018-06-29 at 11.59.16 AM.png, ss-trace-s3a.png
>
>
> The HTrace incubator project has voted to retire itself and won't be making further releases.
The Hadoop project currently has various hooks with HTrace. It seems in some cases (eg HDFS-13702)
these hooks have had measurable performance overhead. Given these two factors, I think we
should consider removing the HTrace integration. If there is someone willing to do the work,
replacing it with OpenTracing might be a better choice since there is an active community.



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