[HBASE-26625] ExportSnapshot tool failed to copy data files for tables with merge region

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.6.0, 3.0.0-alpha-3, 2.4.10, 2.5.9
• Labels: pull-request-available
• Assignee: Yi Mei
• Reporter: Yi Mei
• Created: 24/Dec/21 09:16
• Updated: 17/May/24 04:45
• Resolved: 16/May/24 12:51

Description

When export snapshot for a table with merge regions, we found following exceptions:

2021-12-24 17:14:41,563 INFO  [main] snapshot.ExportSnapshot: Finalize the Snapshot Export
2021-12-24 17:14:41,589 INFO  [main] snapshot.ExportSnapshot: Verify snapshot integrity
2021-12-24 17:14:41,683 ERROR [main] snapshot.ExportSnapshot: Snapshot export failed
org.apache.hadoop.hbase.snapshot.CorruptedSnapshotException: Missing parent hfile for: 043a9fe8aa7c469d8324956a57849db5.8e935527eb39a2cf9bf0f596754b5853 path=A/a=t42=8e935527eb39a2cf9bf0f596754b5853-043a9fe8aa7c469d8324956a57849db5
    at org.apache.hadoop.hbase.snapshot.SnapshotReferenceUtil.concurrentVisitReferencedFiles(SnapshotReferenceUtil.java:232)
    at org.apache.hadoop.hbase.snapshot.SnapshotReferenceUtil.concurrentVisitReferencedFiles(SnapshotReferenceUtil.java:195)
    at org.apache.hadoop.hbase.snapshot.SnapshotReferenceUtil.verifySnapshot(SnapshotReferenceUtil.java:172)
    at org.apache.hadoop.hbase.snapshot.SnapshotReferenceUtil.verifySnapshot(SnapshotReferenceUtil.java:156)
    at org.apache.hadoop.hbase.snapshot.ExportSnapshot.verifySnapshot(ExportSnapshot.java:851)
    at org.apache.hadoop.hbase.snapshot.ExportSnapshot.doWork(ExportSnapshot.java:1096)
    at org.apache.hadoop.hbase.util.AbstractHBaseTool.run(AbstractHBaseTool.java:154)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.hadoop.hbase.util.AbstractHBaseTool.doStaticMain(AbstractHBaseTool.java:280)
    at org.apache.hadoop.hbase.snapshot.ExportSnapshot.main(ExportSnapshot.java:1144) 

Issue Links

• links to: GitHub Pull Request #3981
• links to: GitHub Pull Request #5897