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https://issues.apache.org/jira/browse/HBASE-27153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17562719#comment-17562719
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Nick Dimiduk commented on HBASE-27153:
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I'm checking to see if the test failures are related. I think they're the build
machine being underpowered.
> Improvements to read-path tracing
> ---------------------------------
>
> Key: HBASE-27153
> URL: https://issues.apache.org/jira/browse/HBASE-27153
> Project: HBase
> Issue Type: Improvement
> Components: Operability, regionserver
> Affects Versions: 2.5.0, 3.0.0-alpha-2, 2.6.0
> Reporter: Nick Dimiduk
> Assignee: Nick Dimiduk
> Priority: Major
> Fix For: 2.5.0, 3.0.0-alpha-4
>
>
> Take another pass through tracing of the read path, make adjustments
> accordingly. One of the major concerns raised previously is that we create a
> span for every block access. Start by simplifying this to trace events and
> see what else comes up.
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