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Posted to common-user@hadoop.apache.org by Jason Venner <ja...@attributor.com> on 2008/03/12 04:41:50 UTC

0.16.0 job hang problem dfs related?

I see endless spew in the log files of the form

2008-03-11 20:40:45,379 INFO org.apache.hadoop.dfs.DataNode: Datanode 0 
forwarding connect ack to upstream firstbadlink is
2008-03-11 20:40:45,172 INFO org.apache.hadoop.dfs.DataNode: Received 
block blk_3082015406379486032 of size 7913915 from /10.50.80.95
2008-03-11 20:40:45,172 INFO org.apache.hadoop.dfs.DataNode: 
PacketResponder 1 for block blk_3082015406379486032 terminating
2008-03-11 20:40:45,263 INFO org.apache.hadoop.dfs.DataNode: Received 
block blk_-7497781654408265731 of size 25156578 from /10.50.80.95
2008-03-11 20:40:45,263 INFO org.apache.hadoop.dfs.DataNode: 
PacketResponder 1 for block blk_-7497781654408265731 terminating

while eventually the map tasks get killed for not responding for 600 
seconds.