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[HADOOP-949] reduce hangs after applying HADOOP-248 on 20 node cluster - Hadoop - [issue]
...After HADOOP-248 was committed, my benchmarks started to hang.  Running TestDFSIO on 20 nodes, the job's single reduce is hanging.  Annodated logs from the task tracker running the...
http://issues.apache.org/jira/browse/HADOOP-949    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-906] unit test failures: job.xml already exists - Hadoop - [issue]
...In my last 30 test runs on REL4 and Windows, I've seen this exception 6 times on Windows and 2 times on REL4 in the TestMiniMRDFSCaching or TestMiniMRClasspath logs:    [j...
http://issues.apache.org/jira/browse/HADOOP-906    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-912] TestMiniMRWithDFS fails sporadically - Hadoop - [issue]
...TestMiniMRWithDFS fails sporadically with the following error:junit.framework.AssertionFailedError: Spurious directory task_0001_m_000008_0 found in C:\hudson\workspace\Hadoop-WindowsSmokeTe...
http://issues.apache.org/jira/browse/HADOOP-912    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-936] More updates to metric names to conform to HADOOP-887 - Hadoop - [issue]
...In fixing HADOOP-890 I missed 3 metrics in TaskTracker.java          metricsRecord.setMetric("tasks-completed", ++totalTasksCompleted);      ...
http://issues.apache.org/jira/browse/HADOOP-936    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-794] JobTracker crashes with ArithmeticException - Hadoop - [issue]
...The sort benchmark on 20 nodes failed for me with an ArithmeticException.  Sort.java calculates the number of maps and reduces dynamically based on the cluster size.  I'm guessing ...
http://issues.apache.org/jira/browse/HADOOP-794    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-1071] RPC$VersionMismatch exception is not fatal to JobTracker - Hadoop - [issue]
...The following exception should be fatal to the JT, but isn't.  Instead, this exception is repeated every 1 second forever.2007-03-06 23:07:35,947 WARN org.apache.hadoop.mapred.JobTracke...
http://issues.apache.org/jira/browse/HADOOP-1071    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-705] IOException: job.xml already exists - Hadoop - [issue]
...I'm seeing this exception in the JobTracker log.  It's caused the same map to fail enough that the job aborted.2006-11-09 17:28:37,594 INFO org.apache.hadoop.mapred.TaskInProgress: Erro...
http://issues.apache.org/jira/browse/HADOOP-705    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-704] Reduce hangs at 33% - Hadoop - [issue]
...I have a MR job that is hanging when the reduce reaches 33%.Both the map and reduce are no-ops.  The single reducer is continuously trying to retrieve output from a TaskTracker that see...
http://issues.apache.org/jira/browse/HADOOP-704    Author: Nigel Daley, 2009-07-08, 16:51
[HADOOP-614] Sporadic TestEmptyJobWithDFS failure due to NPE is JobTracker.submitJob() - Hadoop - [issue]
...org.apache.hadoop.mapred.TestEmptyJobWithDFS has failed a couple of times (low reproducibility) with the following exception:2006-10-17 21:48:24,875 INFO  ipc.Server (Server.java:run(51...
http://issues.apache.org/jira/browse/HADOOP-614    Author: Nigel Daley, 2009-07-08, 16:51
[HADOOP-627] MiniMRCluster missing synchronization - Hadoop - [issue]
...org.apache.hadoop.mapred.MiniMRCluster$TaskTrackerRunner contains (at least) 2 instance variables that are read by another thread: isInitialized and isDead.  These should be declared vo...
http://issues.apache.org/jira/browse/HADOOP-627    Author: Nigel Daley, 2009-07-08, 16:51
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