[jira] [Updated] (HBASE-26366) ZK interaction during Master startup produces loads of root-less spans

["Tak-Lon (Stephen) Wu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-26366?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tak-Lon (Stephen) Wu updated HBASE-26366:
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    Attachment: regroup-spans-for-recoverablezookeeper.create.png

> ZK interaction during Master startup produces loads of root-less spans
> ----------------------------------------------------------------------
>
>                 Key: HBASE-26366
>                 URL: https://issues.apache.org/jira/browse/HBASE-26366
>             Project: HBase
>          Issue Type: Bug
>          Components: tracing
>    Affects Versions: 2.5.0, 3.0.0-alpha-2
>            Reporter: Nick Dimiduk
>            Priority: Major
>         Attachments: image.png, regroup-spans-for-recoverablezookeeper.create.png
>
>
> Enable tracing with {{-Dotel.traces.sampler=always_on}} and launch the standalone master, check the trace store. We see lots of single-span traces, each a call to different {{RecoverableZooKeeper}} methods, like {{create}} and {{exists}}. Whatever master startup thread this is should define its own root span.



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