guluo created HBASE-30259:
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Summary: Async WAL archiving causes TestMasterRegionWALCleaner
flaky
Key: HBASE-30259
URL: https://issues.apache.org/jira/browse/HBASE-30259
Project: HBase
Issue Type: Improvement
Reporter: guluo
Assignee: guluo
waitUntilWalRollFinished() returns when the WAL roll request is cleared, but
the actual archiving (moving files to the global archive directory) happens
asynchronously via afterWALArchive() in a background thread.
When the test immediately calls fs.listStatus(globalWALArchiveDir) after
waitUntilWalRollFinished(), the directory may not exist yet, causing a
FileNotFoundException.
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