churro morales created HBASE-13724: -------------------------------------- Summary: ReplicationSource dies under certain conditions reading a sequence file Key: HBASE-13724 URL: https://issues.apache.org/jira/browse/HBASE-13724 Project: HBase Issue Type: Bug Reporter: churro morales
A little background, We run our server in -ea mode and have seen quite a few replication sources silently die over the past few months. Note: the stacktrace I posted below comes from a regionserver running 0.94 but quickly looking at this issue, I believe this will happen in 98 too. Should we harden replication source to deal with these types of assertion errors by catching throwables, should we be dealing with this at the sequence file reader level? Still looking into the root cause of this issue but when manually shutdown our regionservers the regionserver that recovered its queue replicated that log just fine. So in our case a simple retry would've worked just fine. {code} 2015-05-08 11:04:23,348 ERROR org.apache.hadoop.hbase.replication.regionserver.ReplicationSource: Unexpected exception in ReplicationSource, currentPath=hdfs://hm6.xxx.flurry.com:9000/hbase/.logs/xxxxx.yy.flurry.com,60020,1426792702998/xxxxx.atl.flurry.com%2C60020%2C1426792702998.1431107922449 java.lang.AssertionError at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader$WALReaderFSDataInputStream.getPos(SequenceFileLogReader.java:121) at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1489) at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1479) at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1474) at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:55) at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.init(SequenceFileLogReader.java:178) at org.apache.hadoop.hbase.regionserver.wal.HLog.getReader(HLog.java:734) at org.apache.hadoop.hbase.replication.regionserver.ReplicationHLogReaderManager.openReader(ReplicationHLogReaderManager.java:69) at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:583) at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:373) {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)