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From Daning Wang <dan...@netseer.com>
Subject Hadoop cluster hangs on big hive job
Date Wed, 06 Mar 2013 20:03:54 GMT
We have 5 nodes cluster(Hadoop 1.0.4), It hung a couple of times while
running big jobs. Basically all the nodes are dead, from that
trasktracker's log looks it went into some kinds of loop forever.

All the log entries like this when problem happened.

Any idea how to debug the issue?

Thanks in advance.


2013-03-05 15:13:19,526 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000012_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:19,552 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000028_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:20,858 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000036_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:21,141 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000016_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:21,486 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000019_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:21,692 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000039_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:22,448 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000032_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:22,643 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000000_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:22,840 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000024_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:24,628 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000008_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:24,723 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000039_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:25,336 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000004_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:25,539 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000043_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:25,545 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000012_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:25,569 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000028_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:25,855 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000024_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:26,876 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000036_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:27,159 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000016_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:27,505 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000019_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:28,464 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000032_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:28,553 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000043_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:28,561 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000012_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:28,659 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000000_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:30,519 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000019_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:30,644 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000008_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:30,741 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000039_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:31,369 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000004_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:31,675 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000000_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:31,875 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000024_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:32,372 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000028_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >
2013-03-05 15:13:32,893 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_201302270947_0010_r_000036_0 0.131468% reduce > copy (19706 of
49964 at 0.00 MB/s) >

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