[ https://issues.apache.org/jira/browse/HBASE-16603?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ted Yu resolved HBASE-16603.
----------------------------
Resolution: Fixed
Assignee: Ted Yu
Hadoop Flags: Reviewed
Thanks for the review, Stephen.
> Detect unavailability of hbase:backup table to avoid extraneous logging
> -----------------------------------------------------------------------
>
> Key: HBASE-16603
> URL: https://issues.apache.org/jira/browse/HBASE-16603
> Project: HBase
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: Ted Yu
> Labels: backup
> Attachments: 16603.v1.txt
>
>
> We observed the following when hbase:backup was not available:
> {code}
> 2016-09-07 13:32:11,471 ERROR [x,16000,1473269229816_ChoreService_1] master.BackupLogCleaner: Failed to get hbase:backup table, therefore will keep all files
> org.apache.hadoop.hbase.TableNotFoundException: hbase:backup
> at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1264)
> at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1162)
> at org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:300)
> at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:156)
> at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:60)
> at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200)
> at org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:326)
> at org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:301)
> at org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:166)
> at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:161)
> at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:794)
> at org.apache.hadoop.hbase.backup.impl.BackupSystemTable.hasBackupSessions(BackupSystemTable.java:573)
> at org.apache.hadoop.hbase.backup.master.BackupLogCleaner.getDeletableFiles(BackupLogCleaner.java:67)
> at org.apache.hadoop.hbase.master.cleaner.CleanerChore.checkAndDeleteFiles(CleanerChore.java:233)
> at org.apache.hadoop.hbase.master.cleaner.CleanerChore.checkAndDeleteEntries(CleanerChore.java:157)
> at org.apache.hadoop.hbase.master.cleaner.CleanerChore.chore(CleanerChore.java:124)
> at org.apache.hadoop.hbase.ScheduledChore.run(ScheduledChore.java:185)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> {code}
> We should detect the unavailability of hbase:backup table and log at lower level than ERROR.
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