[jira] [Work started] (HBASE-27360) The trace related assertion is flaky for async client tests

["Duo Zhang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-27360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HBASE-27360 started by Duo Zhang.
-----------------------------------------
> The trace related assertion is flaky for async client tests
> -----------------------------------------------------------
>
>                 Key: HBASE-27360
>                 URL: https://issues.apache.org/jira/browse/HBASE-27360
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Major
>
> https://ci-hbase.apache.org/job/HBase-Flaky-Tests/job/master/4167/testReport/junit/org.apache.hadoop.hbase.client/TestAsyncTableScanner/testScanWrongColumnFamily_0__table_raw__scan_normal_/
> The failure message is kinda unreadable... I guess the problem is we do not wait enough time as the completion of the span can be executed concurrently with normal scan operation.
> And also I saw this in the test code
> {code}
>     // RawAsyncTableImpl never invokes the callback to `onScanMetricsCreated` -- bug?
> {code}
> This is not a bug as you need to manually enable scan metrics by calling Scan.setScanMetricsEnabled(true).
> Let me also fix this.



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