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https://issues.apache.org/jira/browse/HBASE-29447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18004877#comment-18004877
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Duo Zhang commented on HBASE-29447:
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I think this is the cause of failure of TestIncrementalBackup?
> WAL Archives Cause Incremental Backup Failures
> ----------------------------------------------
>
> Key: HBASE-29447
> URL: https://issues.apache.org/jira/browse/HBASE-29447
> Project: HBase
> Issue Type: Bug
> Components: backup&restore
> Reporter: Hernan Gelaf-Romer
> Assignee: Hernan Gelaf-Romer
> Priority: Major
> Labels: pull-request-available
>
> If a WAL file is rolled + archived during an incremental backup, we get a
> FNFE and the backup process will fail. When we try to run the WalPlayer to
> convert WAL files to HFiles, we run into the following error
>
> {code:java}
> 2025-07-06 11:39:22.573 [pool-115-thread-1] ERROR
> o.a.h.h.b.impl.TableBackupClient - Unexpected exception in
> incremental-backup: incremental copy backup_1751801939412File
> hdfs://venus-hb2-a-prod:8020/hbase/WALs/na1-real-weary-skink.iad02.hubinternal.net,60020,1751589560526/na1-real-weary-skink.iad02.hubinternal.net%2C60020%2C1751589560526.1751800206074
> does not exist. java.io.FileNotFoundException: File
> hdfs://venus-hb2-a-prod:8020/hbase/WALs/na1-real-weary-skink.iad02.hubinternal.net,60020,1751589560526/na1-real-weary-skink.iad02.hubinternal.net%2C60020%2C1751589560526.1751800206074
> does not exist.{code}
>
> In order to make this more resilient, we could make sure to check the archive
> directory for the missing WAL file if we run into this issue. We do something
> similar when handling bulkloads
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