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[MAPREDUCE-5982] Task attempts that fail from the ASSIGNED state can disappear - MapReduce - [issue]
...If a task attempt fails in the ASSIGNED state, e.g.: container launch fails,  then it can disappear from the job history.  The task overview page will show subsequent attempts but ...
http://issues.apache.org/jira/browse/MAPREDUCE-5982    Author: Jason Lowe, 2015-07-31, 21:25
[MAPREDUCE-6303] Read timeout when retrying a fetch error can be fatal to a reducer - MapReduce - [issue]
...If a reducer encounters an error trying to fetch from a node then encounters a read timeout when trying to re-establish the connection then the reducer can fail.  The read timeout excep...
http://issues.apache.org/jira/browse/MAPREDUCE-6303    Author: Jason Lowe, 2015-07-31, 18:14
[MAPREDUCE-6324] Uber jobs fail to update AMRM token when it rolls over - MapReduce - [issue]
...When the RM rolls a new AMRM master key the AMs are supposed to receive a new AMRM token on subsequent heartbeats between the time when the new key is rolled and when it is activated.  ...
http://issues.apache.org/jira/browse/MAPREDUCE-6324    Author: Jason Lowe, 2015-07-23, 00:00
[MAPREDUCE-6230] MR AM does not survive RM restart if RM activated a new AMRM secret key - MapReduce - [issue]
...A MapReduce AM will fail to reconnect to an RM that performed restart in the following scenario: MapReduce job launched with AMRM token generated from AMRM secret X RM rolls new AMRM secret ...
http://issues.apache.org/jira/browse/MAPREDUCE-6230    Author: Jason Lowe, 2015-07-18, 01:47
[MAPREDUCE-6355] 2.5 client cannot communicate with 2.5 job on 2.6 cluster - MapReduce - [issue]
...Trying to run a job on a Hadoop 2.6 cluster from a Hadoop 2.5 client submitting a job that uses Hadoop 2.5 jars results in a job that succeeds but the client cannot communicate with the AM w...
http://issues.apache.org/jira/browse/MAPREDUCE-6355    Author: Jason Lowe, 2015-07-16, 02:10
[MAPREDUCE-5513] ConcurrentModificationException in JobControl - MapReduce - [issue]
...JobControl.toList is locking individual lists to iterate them, but those lists can be modified elsewhere without holding the list lock.  The locking approaches are mismatched, with toLi...
http://issues.apache.org/jira/browse/MAPREDUCE-5513    Author: Jason Lowe, 2015-06-30, 08:18
[MAPREDUCE-5003] AM recovery should recreate records for attempts that were incomplete - MapReduce - [issue]
...As discussed in MAPREDUCE-4992, it would be nice if the AM recovered task attempt entries for all task attempts launched by the prior app attempt even if those task attempts did not complete...
http://issues.apache.org/jira/browse/MAPREDUCE-5003    Author: Jason Lowe, 2015-06-29, 19:54
[MAPREDUCE-6413] TestLocalJobSubmission is failing with unknown host - MapReduce - [issue]
...ThestLocalJobSubmission.testLocalJobLibjarsOption is failing with java.net.UnknownHostException: testcluster...
http://issues.apache.org/jira/browse/MAPREDUCE-6413    Author: Jason Lowe, 2015-06-26, 15:35
[MAPREDUCE-5002] AM could potentially allocate a reduce container to a map attempt - MapReduce - [issue]
...As discussed in MAPREDUCE-4982, after MAPREDUCE-4893 it is theoretically possible for the AM to accidentally assign a reducer container to a map attempt if the AM doesn't find a reduce attem...
http://issues.apache.org/jira/browse/MAPREDUCE-5002    Author: Jason Lowe, 2015-06-22, 21:25
[MAPREDUCE-5656] bzip2 codec can drop records when reading data in splits - MapReduce - [issue]
...Bzip2Codec.BZip2CompressionInputStream can cause records to be dropped when reading them in splits based on where record delimiters occur relative to compression block boundaries.Thanks to K...
http://issues.apache.org/jira/browse/MAPREDUCE-5656    Author: Jason Lowe, 2015-06-12, 20:59
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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