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https://issues.apache.org/jira/browse/HBASE-14450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15427299#comment-15427299
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Ted Yu commented on HBASE-14450:
--------------------------------
With more debug logging, the incremental restore failure can be attributed to
missed log archiving due to potential accounting error.
See the following snippet w.r.t.
10.22.9.171%2C63282%2C1471559038490.regiongroup-3.1471559070013, the wal file
written with 5 incremental rows:
{code}
2016-08-18 15:24:57,928 DEBUG [sync.3] wal.FSHLog$SyncRunner(1277): syncing
writer
hdfs://localhost:63272/user/tyu/test-data/2479f191-cda8-4ea6-a865-15612aee031a/WALs/10.22.9.171,63282,1471559038490/10.22.9.171%2C63282%2C1471559038490.regiongroup-3.1471559070013
2016-08-18 15:24:57,943 DEBUG [main] backup.TestIncrementalBackup(87): written
5 rows to ns2:test-14715590609531
...
2016-08-18 15:24:58,981 DEBUG [regionserver//10.22.9.171:0.logRoller]
wal.SequenceIdAccounting(335): not archiving
hdfs://localhost:63272/user/tyu/test-data/2479f191-cda8-4ea6-a865-
15612aee031a/WALs/10.22.9.171,63282,1471559038490/10.22.9.171%2C63282%2C1471559038490.regiongroup-3.1471559070013
value: 110 oldestFlushing: 9223372036854775807 oldestUnflushed: 106
{code}
> HBase Backup/Restore Phase 3: Multiwal support
> ----------------------------------------------
>
> Key: HBASE-14450
> URL: https://issues.apache.org/jira/browse/HBASE-14450
> Project: HBase
> Issue Type: Task
> Affects Versions: 2.0.0
> Reporter: Vladimir Rodionov
> Assignee: Ted Yu
> Labels: backup
> Fix For: 2.0.0
>
> Attachments: 14450-roll.v2.txt, 14450.roll-wait.txt, 14450.v2.txt,
> org.apache.hadoop.hbase.backup.TestIncrementalBackup-output.txt,
> testIncrementalBackup-8-15.txt, testIncrementalBackup-succ.txt
>
>
> We need to support multiwal configurations.
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