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From Brian Jeltema <brian.jelt...@digitalenvoy.net>
Subject need help understand log output
Date Sun, 07 Sep 2014 15:50:25 GMT
I have a map/reduce job that is consistently failing with timeouts. The failing mapper log
files contain a series
of records similar to those below. When I look at the hbase and hdfs logs (on foo.net in this
case) I don’t see
anything obvious at these timestamps. The mapper task times out at/near attempt=25/35. Can
anyone shed light
on what these log entries mean?

Thanks - Brian


2014-09-07 09:36:51,421 INFO [htable-pool1-t1] org.apache.hadoop.hbase.client.AsyncProcess:
#3, table=Host, primary, attempt=10/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
tracking started null, retrying after 10029 ms, replay 1062 ops
2014-09-07 09:37:01,642 INFO [htable-pool1-t1] org.apache.hadoop.hbase.client.AsyncProcess:
#3, table=Host, primary, attempt=11/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
tracking started null, retrying after 10023 ms, replay 1062 ops
2014-09-07 09:37:12,064 INFO [htable-pool1-t1] org.apache.hadoop.hbase.client.AsyncProcess:
#3, table=Host, primary, attempt=12/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
tracking started null, retrying after 20182 ms, replay 1062 ops
2014-09-07 09:37:32,708 INFO [htable-pool1-t1] org.apache.hadoop.hbase.client.AsyncProcess:
#3, table=Host, primary, attempt=13/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
tracking started null, retrying after 20140 ms, replay 1062 ops
2014-09-07 09:37:52,940 INFO [htable-pool1-t1] org.apache.hadoop.hbase.client.AsyncProcess:
#3, table=Host, primary, attempt=14/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
tracking started null, retrying after 20041 ms, replay 1062 ops
2014-09-07 09:38:13,324 INFO [htable-pool1-t1] org.apache.hadoop.hbase.client.AsyncProcess:
#3, table=Host, primary, attempt=15/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
tracking started null, retrying after 20041 ms, replay 1062 ops


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