[HBASE-9373] [replication] data loss because replication doesn't expect partial reads

• Type: Improvement
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.95.2
• Fix Version/s: 0.98.0, 0.96.0
• Hadoop Flags: Reviewed
• Assignee: Jean-Daniel Cryans
• Reporter: Jean-Daniel Cryans
• Created: 28/Aug/13 23:21
• Updated: 20/Nov/15 11:53
• Resolved: 30/Aug/13 18:08

Description

When I see this in the logs it often means we got a partial read and then we have the wrong offset when reading the rest of the file

2013-08-28 23:16:07,182 ERROR [ReplicationExecutor-0.replicationSource,1-jdec2hbase0403-5,60020,1377730319617] org.apache.hadoop.hbase.regionserver.wal.ProtobufLogReader: Invalid PB while reading WAL, probably an unexpected EOF, ignoring
com.google.protobuf.InvalidProtocolBufferException: Protocol message tag had invalid wire type.
        at com.google.protobuf.InvalidProtocolBufferException.invalidWireType(InvalidProtocolBufferException.java:99)
        at com.google.protobuf.UnknownFieldSet$Builder.mergeFieldFrom(UnknownFieldSet.java:498)
        at com.google.protobuf.GeneratedMessage.parseUnknownField(GeneratedMessage.java:193)
        at org.apache.hadoop.hbase.protobuf.generated.WALProtos$WALKey.<init>(WALProtos.java:686)
        at org.apache.hadoop.hbase.protobuf.generated.WALProtos$WALKey.<init>(WALProtos.java:644)
        at org.apache.hadoop.hbase.protobuf.generated.WALProtos$WALKey$1.parsePartialFrom(WALProtos.java:771)
        at org.apache.hadoop.hbase.protobuf.generated.WALProtos$WALKey$1.parsePartialFrom(WALProtos.java:766)
        at org.apache.hadoop.hbase.protobuf.generated.WALProtos$WALKey$Builder.mergeFrom(WALProtos.java:1444)
        at org.apache.hadoop.hbase.protobuf.generated.WALProtos$WALKey$Builder.mergeFrom(WALProtos.java:1218)
        at com.google.protobuf.AbstractMessageLite$Builder.mergeFrom(AbstractMessageLite.java:220)
        at com.google.protobuf.AbstractMessage$Builder.mergeFrom(AbstractMessage.java:912)
        at com.google.protobuf.AbstractMessage$Builder.mergeFrom(AbstractMessage.java:267)
        at com.google.protobuf.AbstractMessageLite$Builder.mergeDelimitedFrom(AbstractMessageLite.java:290)
        at com.google.protobuf.AbstractMessage$Builder.mergeDelimitedFrom(AbstractMessage.java:926)
        at com.google.protobuf.AbstractMessageLite$Builder.mergeDelimitedFrom(AbstractMessageLite.java:296)
        at com.google.protobuf.AbstractMessage$Builder.mergeDelimitedFrom(AbstractMessage.java:918)
        at org.apache.hadoop.hbase.regionserver.wal.ProtobufLogReader.readNext(ProtobufLogReader.java:197)
        at org.apache.hadoop.hbase.regionserver.wal.ReaderBase.next(ReaderBase.java:98)
        at org.apache.hadoop.hbase.replication.regionserver.ReplicationHLogReaderManager.readNextAndSetPosition(ReplicationHLogReaderManager.java:89)
        at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.readAllEntriesToReplicateOrNextFile(ReplicationSource.java:390)
        at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:298)