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Posted to issues@hbase.apache.org by "Nick Dimiduk (Jira)" <ji...@apache.org> on 2022/04/28 15:19:00 UTC
[jira] [Assigned] (HBASE-26366) ZK interaction during Master startup produces loads of root-less spans
[ https://issues.apache.org/jira/browse/HBASE-26366?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Nick Dimiduk reassigned HBASE-26366:
------------------------------------
Assignee: Nick Dimiduk
> 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: Sub-task
> Components: tracing
> Affects Versions: 2.5.0, 3.0.0-alpha-2
> Reporter: Nick Dimiduk
> Assignee: Nick Dimiduk
> Priority: Major
> Fix For: 2.5.0, 2.6.0, 3.0.0-alpha-3
>
> 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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