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[HADOOP-1159] Reducers hang when map output file has a checksum error - Hadoop - [issue]
...Two reduces hung in our sort benchmark. They always fail to get map outputs from node X due to checksum error when the map outputs are read at that node resulting in a NullPointerException o...
http://issues.apache.org/jira/browse/HADOOP-1159    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-1098] output blocks lost when speculative execution is used - Hadoop - [issue]
...The Sort benchmark completes successfully for me on the latest trunk (0.12.1 candidate) with speculation turned on.  Validation of the Sort benchmark output, however, is failing.  ...
http://issues.apache.org/jira/browse/HADOOP-1098    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-1099] NullPointerException in JobInProgress.getTaskInProgress - Hadoop - [issue]
...Saw this in the JobTracker log when a user was trying to reload a page for a running job that since finished.2007-03-09 00:23:44,029 WARN /: /taskdetails.jsp?jobid=job_0003&taskid=tip_00...
http://issues.apache.org/jira/browse/HADOOP-1099    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-1057] IOException: job.xml already exists - Hadoop - [issue]
...Running TestMiniMRLocalFS on Linux, I saw this exception during the 2nd job that it runs:    [junit] 2007-02-28 21:09:50,076 INFO  mapred.JobInProgress (JobInProg...
http://issues.apache.org/jira/browse/HADOOP-1057    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-1058] ClassCastException in TextInputFormat.getRecordReader - Hadoop - [issue]
...Running TestMiniMRLocalFS on Linux, I saw this exception during the 3rd job that it runs:     [junit] 2007-02-28 21:10:14,739 INFO  mapred.TaskRunner (MapTaskRunn...
http://issues.apache.org/jira/browse/HADOOP-1058    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-1011] ConcurrentModificationException in JobHistory - Hadoop - [issue]
...Using the jobtracker web ui to look at job history.  Loading multiple history URLs concurrently in differnt browser windows yielded this exception in the jobtracker log:2007-02-12 21:49...
http://issues.apache.org/jira/browse/HADOOP-1011    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-1012] OutOfMemoryError in reduce - Hadoop - [issue]
...I'm seeing OutOfMemoryErrors from a reduce in each of DFSIO Benchmark and RandomWriter.  No stack traces are given.  Snipets from the TaskTracker logs are below.  I believe I ...
http://issues.apache.org/jira/browse/HADOOP-1012    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-1028] Servers should log startup and shutdown messages - Hadoop - [issue]
...JobTracker, TaskTracker, NameNode, and DataNode should log when they startup and when they shutdown....
http://issues.apache.org/jira/browse/HADOOP-1028    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-984] Exception while retrieving a map output index file is not reported to JobTracker - Hadoop - [issue]
...The index file of a map output reported a checksum error and was moved to "bad_file" dir.  Reduces, however, continued to attempt retrieval of the file forever.  It seem the checks...
http://issues.apache.org/jira/browse/HADOOP-984    Author: Nigel Daley, 2009-07-08, 16:52
[HADOOP-934] TaskTracker sends duplicate status when updating task metrics throws exception - Hadoop - [issue]
...When updating the TaskTracker metrics repeatedly throws an exception, the TaskTracker repeatedly sends status events to the JobTracker.  This seems to get the JobTracker into a funny st...
http://issues.apache.org/jira/browse/HADOOP-934    Author: Nigel Daley, 2009-07-08, 16:52
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