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https://issues.apache.org/jira/browse/ABDERA-154?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Runping Qi closed ABDERA-154.
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Resolution: Fixed
wrong project.
Sorry.
> Logging messages in shuffling code is excessive yet short of critical
> information
> ---------------------------------------------------------------------------------
>
> Key: ABDERA-154
> URL: https://issues.apache.org/jira/browse/ABDERA-154
> Project: Abdera
> Issue Type: Improvement
> Reporter: Runping Qi
>
> Below is an excerpt from the log file of a reducer.
> A same set of of messages about fetching schedule is logged every second.
> Yet, the critical information --- which hosts were slow --- was not there.
>
> 2008-05-01 00:33:13,215 INFO org.apache.hadoop.mapred.ReduceTask:
> task_200804302255_0002_r_000720_0 Need another 3 map output(s) where 1 is
> already in progress
> 2008-05-01 00:33:14,216 INFO org.apache.hadoop.mapred.ReduceTask:
> task_200804302255_0002_r_000720_0: Got 0 new map-outputs & 0 obsolete
> map-outputs from tasktracker and 0 map-outputs from previous failures
> 2008-05-01 00:33:14,216 INFO org.apache.hadoop.mapred.ReduceTask:
> task_200804302255_0002_r_000720_0 Got 2 known map output location(s);
> scheduling...
> 2008-05-01 00:33:14,216 INFO org.apache.hadoop.mapred.ReduceTask:
> task_200804302255_0002_r_000720_0 Scheduled 0 of 2 known outputs (2 slow
> hosts and 0 dup hosts)
> 2008-05-01 00:33:14,216 INFO org.apache.hadoop.mapred.ReduceTask:
> task_200804302255_0002_r_000720_0 Need another 3 map output(s) where 1 is
> already in progress
> 2008-05-01 00:33:15,217 INFO org.apache.hadoop.mapred.ReduceTask:
> task_200804302255_0002_r_000720_0: Got 0 new map-outputs & 0 obsolete
> map-outputs from tasktracker and 0 map-outputs from previous failures
> 2008-05-01 00:33:15,217 INFO org.apache.hadoop.mapred.ReduceTask:
> task_200804302255_0002_r_000720_0 Got 2 known map output location(s);
> scheduling...
> 2008-05-01 00:33:15,217 INFO org.apache.hadoop.mapred.ReduceTask:
> task_200804302255_0002_r_000720_0 Scheduled 0 of 2 known outputs (2 slow
> hosts and 0 dup hosts)
> 2008-05-01 00:33:15,217 INFO org.apache.hadoop.mapred.ReduceTask:
> task_200804302255_0002_r_000720_0 Need another 3 map output(s) where 1 is
> already in progress
> 2008-05-01 00:33:16,218 INFO org.apache.hadoop.mapred.ReduceTask:
> task_200804302255_0002_r_000720_0: Got 0 new map-outputs & 0 obsolete
> map-outputs from tasktracker and 0 map-outputs from previous failures
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