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Re: The minimum memory requirements to datanode and namenode? - MapReduce - [mail # user]
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...I can issue a command 'hadoop dfsadmin -report', but it did not return any result for a long time. Also, I can open the NN UI(http://namenode:50070), but it is always keeping in the connecti...
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Author: sam liu,
2013-05-13, 06:22
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Re: The minimum memory requirements to datanode and namenode? - MapReduce - [mail # user]
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...Nitin, In my cluster, the tasktracker and datanode already have been launched, and are still running now. But the free/available mem of node3 now is just 167 mb, and do you think it's ...
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Author: sam liu,
2013-05-13, 05:58
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Re: The minimum memory requirements to datanode and namenode? - MapReduce - [mail # user]
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...For node3, the memory is: total used free shared buf...
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Author: sam liu,
2013-05-13, 05:48
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Re: Why could not find finished jobs in yarn.resourcemanager.webapp.address? - MapReduce - [mail # user]
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...That's the cause. After setting mapreduce.framework.name to YARN in mapred-site.xml, the MR job could be found in the 'FINISHED Applications' tab now. Thanks very much! 2013/5/3 Sandy...
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Author: sam liu,
2013-05-03, 02:58
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[MAPREDUCE-5026] For shortening the time of TaskTracker heartbeat, decouple the statics collection operations - MapReduce - [issue]
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...In each heartbeat of TaskTracker, it will calculate some system statics, like the free disk space, available virtual/physical memory, cpu usage, etc. However, it's not necessary to calculate...
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http://issues.apache.org/jira/browse/MAPREDUCE-5026
Author: sam liu,
2013-03-17, 10:00
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[MAPREDUCE-4798] TestJobHistoryServer fails some times with 'java.lang.AssertionError: Address already in use' - MapReduce - [issue]
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...UT Failure in IHC 1.0.3: org.apache.hadoop.mapred.TestJobHistoryServer. This UT fails sometimes.The error message is:'Testcase: testHistoryServerStandalone took 5.376 sec Caused an ERRORAddr...
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http://issues.apache.org/jira/browse/MAPREDUCE-4798
Author: sam liu,
2013-03-06, 09:55
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