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Posted to dev@hbase.apache.org by "Duo Zhang (JIRA)" <ji...@apache.org> on 2019/05/31 08:40:00 UTC

[jira] [Resolved] (HBASE-22502) Purge the logs when we reach the EOF for the last wal file when replication

     [ https://issues.apache.org/jira/browse/HBASE-22502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duo Zhang resolved HBASE-22502.
-------------------------------
      Resolution: Fixed
        Assignee: Duo Zhang
    Hadoop Flags: Reviewed

Pushed to branch-2.2+.

Thanks [~openinx] for reviewing.

> Purge the logs when we reach the EOF for the last wal file when replication
> ---------------------------------------------------------------------------
>
>                 Key: HBASE-22502
>                 URL: https://issues.apache.org/jira/browse/HBASE-22502
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Major
>             Fix For: 3.0.0, 2.2.0, 2.3.0
>
>
> Now there will be strange a warn log
> {noformat}
> 2019-05-30 14:59:38,426 WARN  [RS:1;zhangduo-ubuntu:39885.replicationSource.wal-reader.zhangduo-ubuntu%2C39885%2C1559199556433,2] wal.ProtobufLogReader(422): Encountered a malformed edit, seeking back to last good position in file, from 2459 to 2459
> java.io.EOFException: First byte is negative at offset 2459
> 	at org.apache.hadoop.hbase.regionserver.wal.ProtobufLogReader.readNext(ProtobufLogReader.java:347)
> 	at org.apache.hadoop.hbase.regionserver.wal.ReaderBase.next(ReaderBase.java:98)
> 	at org.apache.hadoop.hbase.regionserver.wal.ReaderBase.next(ReaderBase.java:86)
> 	at org.apache.hadoop.hbase.replication.regionserver.WALEntryStream.readNextEntryAndRecordReaderPosition(WALEntryStream.java:263)
> 	at org.apache.hadoop.hbase.replication.regionserver.WALEntryStream.tryAdvanceEntry(WALEntryStream.java:176)
> 	at org.apache.hadoop.hbase.replication.regionserver.WALEntryStream.hasNext(WALEntryStream.java:101)
> 	at org.apache.hadoop.hbase.replication.regionserver.ReplicationSourceWALReader.readWALEntries(ReplicationSourceWALReader.java:195)
> 	at org.apache.hadoop.hbase.replication.regionserver.ReplicationSourceWALReader.run(ReplicationSourceWALReader.java:138)
> {noformat}
> And in TestReplicationStatus* UTs, we set the retry interval to 100ms, so the logs are flooded with these useless warns...



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