[HBASE-27360] The trace related assertions are flaky for async client tests

• Type: Test
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.6.0, 2.5.1, 3.0.0-alpha-4
• Component/s: test, tracing
• Hadoop Flags: Reviewed
• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 07/Sep/22 06:07
• Updated: 13/Sep/22 12:21
• Resolved: 09/Sep/22 15:09

Description

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

    // RawAsyncTableImpl never invokes the callback to `onScanMetricsCreated` -- bug?

This is not a bug as you need to manually enable scan metrics by calling Scan.setScanMetricsEnabled(true).

Let me also fix this.

Issue Links

• links to: GitHub Pull Request #4767