Details
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Improvement
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Status: Closed
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Major
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Resolution: Abandoned
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None
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None
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None
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None
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Reviewed
Description
(Doesn't really impact the run time or correctness of log splitting)
say the master has lost connection to zk. splitlogmanager's timeoutmanager will realize that all the tasks that were submitted are still unassigned. It will resubmit those tasks (i.e. create dummy znodes)
splitlogmanager should realze that the tasks are unassigned but their znodes have not been created.
012-04-20 13:11:20,516 INFO org.apache.hadoop.hbase.master.SplitLogManager: dead splitlog worker msgstore295.snc4.facebook.com,60020,1334948757026
2012-04-20 13:11:20,517 DEBUG org.apache.hadoop.hbase.master.SplitLogManager: Scheduling batch of logs to split
2012-04-20 13:11:20,517 INFO org.apache.hadoop.hbase.master.SplitLogManager: started splitting logs in [hdfs://msgstore215.snc4.facebook.com:9000/MSGSTORE215-SNC4-HBASE/.logs/msgstore295.snc4.facebook.com,60020,1334948757026-splitting]
2012-04-20 13:11:20,565 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server msgstore235.snc4.facebook.com/10.30.222.186:2181
2012-04-20 13:11:20,566 INFO org.apache.zookeeper.ClientCnxn: Socket connection established to msgstore235.snc4.facebook.com/10.30.222.186:2181, initiating session
2012-04-20 13:11:20,575 INFO org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 4 unassigned = 4
2012-04-20 13:11:20,576 DEBUG org.apache.hadoop.hbase.master.SplitLogManager: resubmitting unassigned task(s) after timeout
2012-04-20 13:11:21,577 DEBUG org.apache.hadoop.hbase.master.SplitLogManager: resubmitting unassigned task(s) after timeout
2012-04-20 13:11:21,683 INFO org.apache.zookeeper.ClientCnxn: Unable to read additional data from server sessionid 0x36ccb0f8010002, likely server has closed socket, closing socket connection and attempting reconnect
2012-04-20 13:11:21,683 INFO org.apache.zookeeper.ClientCnxn: Unable to read additional data from server sessionid 0x136ccb0f4890000, likely server has closed socket, closing socket connection and attempting reconnect
2012-04-20 13:11:21,786 WARN org.apache.hadoop.hbase.master.SplitLogManager$CreateAsyncCallback: create rc =CONNECTIONLOSS for /hbase/splitlog/hdfs%3A%2F%2Fmsgstore215.snc4.facebook.com%3A9000%2FMSGSTORE215-SNC4-HBASE%2F.logs%2Fmsgstore295.snc4.facebook.com%2C60020%2C1334948757026-splitting%2F10.30.251.186%253A60020.1334951586677 retry=3
2012-04-20 13:11:21,786 WARN org.apache.hadoop.hbase.master.SplitLogManager$CreateAsyncCallback: create rc =CONNECTIONLOSS for /hbase/splitlog/hdfs%3A%2F%2Fmsgstore215.snc4.facebook.com%3A9000%2FMSGSTORE215-SNC4-HBASE%2F.logs%2Fmsgstore295.snc4.facebook.com%2C60020%2C1334948757026-splitting%2F10.30.251.186%253A60020.1334951920332 retry=3