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[MAPREDUCE-5640] Rename TestLineRecordReader in jobclient module - MapReduce - [issue]
...HADOOP-9622 proposes to add new unit tests for LineRecordReader in the mapreduce-client-core module alongside the code.  The existing LineRecordReader tests in the mapreduce-client-jobc...
http://issues.apache.org/jira/browse/MAPREDUCE-5640    Author: Jason Lowe, 2014-09-04, 00:40
[MAPREDUCE-5266] Ability to refresh retention settings on history server - MapReduce - [issue]
...It would be very useful if the job and log retention settings of the history server could be refreshed without restarting the history server.  This would include such things as: how man...
http://issues.apache.org/jira/browse/MAPREDUCE-5266    Author: Jason Lowe, 2014-09-04, 00:35
[MAPREDUCE-4825] JobImpl.finished doesn't expect ERROR as a final job state - MapReduce - [issue]
...TestMRApp.testJobError is causing AsyncDispatcher to exit with System.exit due to an exception being thrown.  From the console output from testJobError:2012-11-27 18:46:15,240 ERROR [As...
http://issues.apache.org/jira/browse/MAPREDUCE-4825    Author: Jason Lowe, 2014-09-04, 00:25
[MAPREDUCE-4817] Hardcoded task ping timeout kills tasks localizing large amounts of data - MapReduce - [issue]
...When a task is launched and spends more than 5 minutes localizing files, the AM will kill the task due to ping timeout.  The AM's TaskHeartbeatHandler currently tracks tasks via a progr...
http://issues.apache.org/jira/browse/MAPREDUCE-4817    Author: Jason Lowe, 2014-09-04, 00:25
[MAPREDUCE-4813] AM timing out during job commit - MapReduce - [issue]
...The AM calls the output committer's commitJob method synchronously during JobImpl state transitions, which means the JobImpl write lock is held the entire time the job is being committed. &n...
http://issues.apache.org/jira/browse/MAPREDUCE-4813    Author: Jason Lowe, 2014-09-04, 00:25
[MAPREDUCE-4913] TestMRAppMaster#testMRAppMasterMissingStaging occasionally exits - MapReduce - [issue]
...testMRAppMasterMissingStaging will sometimes cause the JVM to exit due to this error from AsyncDispatcher:2013-01-05 02:14:54,682 FATAL [AsyncDispatcher event handler] event.AsyncDispatcher ...
http://issues.apache.org/jira/browse/MAPREDUCE-4913    Author: Jason Lowe, 2014-09-04, 00:25
[MAPREDUCE-4819] AM can rerun job after reporting final job status to the client - MapReduce - [issue]
...If the AM reports final job status to the client but then crashes before unregistering with the RM then the RM can run another AM attempt.  Currently AM re-attempts assume that the prev...
http://issues.apache.org/jira/browse/MAPREDUCE-4819    Author: Jason Lowe, 2014-09-04, 00:25
[MAPREDUCE-4797] LocalContainerAllocator can loop forever trying to contact the RM - MapReduce - [issue]
...If LocalContainerAllocator has trouble communicating with the RM it can end up retrying forever if the nature of the error is not a YarnException.This can be particulary bad if the connectio...
http://issues.apache.org/jira/browse/MAPREDUCE-4797    Author: Jason Lowe, 2014-09-04, 00:17
[MAPREDUCE-5043] Fetch failure processing can cause AM event queue to backup and eventually OOM - MapReduce - [issue]
...Saw an MRAppMaster with a 3G heap OOM.  Upon investigating another instance of it running, we saw the UI in a weird state where the task table and task attempt tables in the job overvie...
http://issues.apache.org/jira/browse/MAPREDUCE-5043    Author: Jason Lowe, 2014-09-03, 23:57
[MAPREDUCE-4794] DefaultSpeculator generates error messages on normal shutdown - MapReduce - [issue]
...DefaultSpeculator can log the following error message on a normal shutdown of the ApplicationMaster:2012-11-13 01:35:31,841 ERROR [DefaultSpeculator background processing] org.apache.hadoop....
http://issues.apache.org/jira/browse/MAPREDUCE-4794    Author: Jason Lowe, 2014-09-03, 23:57
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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