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[MAPREDUCE-6045] need close the DataInputStream after open it in TestMapReduce.java - MapReduce - [issue]
...In TestMapReduce.java, we didn't close the DataInputStream after open it in isSequenceFile....
http://issues.apache.org/jira/browse/MAPREDUCE-6045    Author: zhihai xu, 2014-12-20, 15:27
[MAPREDUCE-6198] NPE from JobTracker#resolveAndAddToTopology in MR1 cause initJob and heartbeat failure. - MapReduce - [issue]
...NPE from JobTracker#resolveAndAddToTopology in MR1 cause initJob and heartbeat failure. The NPE is caused by dnsToSwitchMapping.resolve return null at the following:    List &...
http://issues.apache.org/jira/browse/MAPREDUCE-6198    Author: zhihai xu, 2014-12-19, 21:45
[MAPREDUCE-6144] DefaultSpeculator always add both MAP and REDUCE Speculative task even MAP_SPECULATIVE or REDUCE_SPECULATIVE is disabled. - MapReduce - [issue]
...DefaultSpeculator always add both MAP and REDUCE Speculative task even MAP_SPECULATIVE or REDUCE_SPECULATIVE is disabled.If both MAP_SPECULATIVE and REDUCE_SPECULATIVE are disabled, DefaultS...
http://issues.apache.org/jira/browse/MAPREDUCE-6144    Author: zhihai xu, 2014-11-25, 08:25
[MAPREDUCE-6169] MergeQueue should release reference to the current item from key and value at the end of the iteration to save memory. - MapReduce - [issue]
...MergeQueue should release reference to the current item from key and value at the end of the iteration to save memory.these buffers referenced by key and value can be large, which may cause ...
http://issues.apache.org/jira/browse/MAPREDUCE-6169    Author: zhihai xu, 2014-11-21, 15:44
[MAPREDUCE-6063] In sortAndSpill of MapTask.java, size is calculated wrongly when bufend < bufstart. - MapReduce - [issue]
...In sortAndSpill of MapTask.java, size is calculated wrongly when bufend < bufstart.  we should change (bufvoid - bufend) + bufstart to (bufvoid - bufstart) + bufend.Should change&nbs...
http://issues.apache.org/jira/browse/MAPREDUCE-6063    Author: zhihai xu, 2014-11-18, 15:40
[MAPREDUCE-6147] Support mapreduce.input.fileinputformat.split.maxsize - MapReduce - [issue]
...support mapreduce.input.fileinputformat.split.maxsize in MR1 mapred.Hive use mapred API,Hive expects mapred.max.split.size and mapreduce.input.fileinputformat.split.maxsize should be equival...
http://issues.apache.org/jira/browse/MAPREDUCE-6147    Author: zhihai xu, 2014-11-03, 23:57
[MAPREDUCE-6143] add configuration for  mapreduce speculative execution in MR2 - MapReduce - [issue]
...add configuration for  mapreduce speculative execution in MR2.Currently mapreduce.job.speculative.speculativecap, mapreduce.job.speculative.slowtaskthreshold and mapreduce.job.speculati...
http://issues.apache.org/jira/browse/MAPREDUCE-6143    Author: zhihai xu, 2014-10-30, 04:20
[MAPREDUCE-6076] Zero map split input length combine with none zero  map split input length will cause MR1 job hung. - MapReduce - [issue]
...Zero map split input length combine with none zero map split input length will cause MR1 job hung. This problem may happen when use HBASE input split(TableSplit).HBASE split input length can...
http://issues.apache.org/jira/browse/MAPREDUCE-6076    Author: zhihai xu, 2014-09-06, 04:12
[MAPREDUCE-5969] Private non-Archive Files' size add twice in Distributed Cache directory size calculation. - MapReduce - [issue]
...Private non-Archive Files' size add twice in Distributed Cache directory size calculation. Private non-Archive Files list is passed in by "-files" command line option. The Distributed Cache ...
http://issues.apache.org/jira/browse/MAPREDUCE-5969    Author: zhihai xu, 2014-08-13, 02:40
[MAPREDUCE-5968] Work directory is not deleted when downloadCacheObject throws IOException - MapReduce - [issue]
...Work directory is not deleted in  DistCache if Exception happen in downloadCacheObject. In downloadCacheObject, the cache file will be copied to temporarily work directory first, then t...
http://issues.apache.org/jira/browse/MAPREDUCE-5968    Author: zhihai xu, 2014-08-05, 07:35
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB