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https://issues.apache.org/jira/browse/HBASE-18137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16047307#comment-16047307
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Anoop Sam John commented on HBASE-18137:
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bq. A new config "replication.source.eof.autorecovery"
Normally our configs will be prefixed with 'hbase.' right? Any reason its
diff here? Or just missed? Current replication area configs are this way. Did
not check. Just asking as noticed in the Release Notes.
> Replication gets stuck for empty WALs
> -------------------------------------
>
> Key: HBASE-18137
> URL: https://issues.apache.org/jira/browse/HBASE-18137
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Affects Versions: 1.3.1
> Reporter: Ashu Pachauri
> Assignee: Vincent Poon
> Priority: Critical
> Fix For: 2.0.0, 1.4.0, 1.3.2, 1.2.7
>
> Attachments: HBASE-18137.branch-1.3.v1.patch,
> HBASE-18137.branch-1.3.v2.patch, HBASE-18137.branch-1.3.v3.patch,
> HBASE-18137.branch-1.v1.patch, HBASE-18137.branch-1.v2.patch,
> HBASE-18137.master.v1.patch
>
>
> Replication assumes that only the last WAL of a recovered queue can be empty.
> But, intermittent DFS issues may cause empty WALs being created (without the
> PWAL magic), and a roll of WAL to happen without a regionserver crash. This
> will cause recovered queues to have empty WALs in the middle. This cause
> replication to get stuck:
> {code}
> TRACE regionserver.ReplicationSource: Opening log <wal_file>
> WARN regionserver.ReplicationSource: <peer_cluster_id>-<recovered_queue> Got:
> java.io.EOFException
> at java.io.DataInputStream.readFully(DataInputStream.java:197)
> at java.io.DataInputStream.readFully(DataInputStream.java:169)
> at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1915)
> at
> org.apache.hadoop.io.SequenceFile$Reader.initialize(SequenceFile.java:1880)
> at
> org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1829)
> at
> org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1843)
> at
> org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:70)
> at
> org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.reset(SequenceFileLogReader.java:168)
> at
> org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.initReader(SequenceFileLogReader.java:177)
> at
> org.apache.hadoop.hbase.regionserver.wal.ReaderBase.init(ReaderBase.java:66)
> at
> org.apache.hadoop.hbase.wal.WALFactory.createReader(WALFactory.java:312)
> at
> org.apache.hadoop.hbase.wal.WALFactory.createReader(WALFactory.java:276)
> at
> org.apache.hadoop.hbase.wal.WALFactory.createReader(WALFactory.java:264)
> at
> org.apache.hadoop.hbase.wal.WALFactory.createReader(WALFactory.java:423)
> at
> org.apache.hadoop.hbase.replication.regionserver.ReplicationWALReaderManager.openReader(ReplicationWALReaderManager.java:70)
> at
> org.apache.hadoop.hbase.replication.regionserver.ReplicationSource$ReplicationSourceWorkerThread.openReader(ReplicationSource.java:830)
> at
> org.apache.hadoop.hbase.replication.regionserver.ReplicationSource$ReplicationSourceWorkerThread.run(ReplicationSource.java:572)
> {code}
> The WAL in question was completely empty but there were other WALs in the
> recovered queue which were newer and non-empty.
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