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[MAPREDUCE-4841] Application Master Retries fail due to FileNotFoundException - MapReduce - [issue]
...Application attempt1 is deleting the job related files and these are not present in the HDFS for following retries.Application application_1353724754961_0001 failed 4 times due to AM Contain...
http://issues.apache.org/jira/browse/MAPREDUCE-4841    Author: Devaraj K, 2014-07-22, 15:40
[MAPREDUCE-5622] MRAppMaster doesn't assign all allocated NODE_LOCAL containers to node-local maps - MapReduce - [issue]
...MRAppMaster will request containers for all the splits to launch map tasks, RM will give Node Local containers for all these if available. When the RM gives all containers as Node Local, MR ...
http://issues.apache.org/jira/browse/MAPREDUCE-5622    Author: Devaraj K, 2013-11-13, 15:40
[MAPREDUCE-5174] Job History server gives wrong no of total maps and reducers - MapReduce - [issue]
...History server displays wrong no of total maps and total reducers in JHS UI Job listing for non-succeeded jobs and also REST API (i.e http://<job history ip><port>/ws/v1/history/...
http://issues.apache.org/jira/browse/MAPREDUCE-5174    Author: Devaraj K, 2013-08-05, 08:05
[MAPREDUCE-5422] [Umbrella] Fix invalid state transitions in MRAppMaster - MapReduce - [issue]
...There are mutiple invalid state transitions for the state machines present in MRAppMaster. All these can be handled as part of this umbrell JIRA....
http://issues.apache.org/jira/browse/MAPREDUCE-5422    Author: Devaraj K, 2013-07-26, 12:49
[MAPREDUCE-4743] Job is marking as FAILED and also throwing the Transition exception instead of KILLED when issues a KILL command - MapReduce - [issue]
...org.apache.hadoop.yarn.state.InvalidStateTransitonException: Invalid event: T_KILL at SUCCEEDED at org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:301)...
http://issues.apache.org/jira/browse/MAPREDUCE-4743    Author: Devaraj K, 2013-06-07, 13:06
[MAPREDUCE-5195] Job doesn't utilize all the available cluster resources with CombineFileInputFormat - MapReduce - [issue]
...If we enable delay scheduling in capacity scheduler and the submitted job is using CombineFileInputFormat then this job is not able to use the all the available resources in the cluster, run...
http://issues.apache.org/jira/browse/MAPREDUCE-5195    Author: Devaraj K, 2013-04-30, 14:24
[MAPREDUCE-3232] AM should  handle reboot from Resource Manager - MapReduce - [issue]
...When the RM doesn't have last response id for app attempt(or the request response id is less than the last response id), RM sends reboot response but AM doesn't handle this....
http://issues.apache.org/jira/browse/MAPREDUCE-3232    Author: Devaraj K, 2013-01-17, 13:14
[MAPREDUCE-3556] Resource Leaks in key flows - MapReduce - [issue]
...MapTask.java   if (combinerRunner == null || numSpills < minSpillsForCombine) {            Merger.writeFile(kvIter, writer, reporter, job...
http://issues.apache.org/jira/browse/MAPREDUCE-3556    Author: Devaraj K, 2013-01-17, 13:12
[MAPREDUCE-2562] NullPointerException in Jobtracker when it is started without Name Node - MapReduce - [issue]
...It is throwing NullPointerException in job tracker logs when job tracker is started without NameNode.Bar.java2011-06-03 01:50:04,304 INFO org.apache.hadoop.ipc.Client: Retrying connect to se...
http://issues.apache.org/jira/browse/MAPREDUCE-2562    Author: Devaraj K, 2013-01-17, 13:08
[MAPREDUCE-2548] Log improvements in DBOutputFormat.java and CounterGroup.java - MapReduce - [issue]
...1. Instead of the printing the stack trace on the console, It can be logged. DBOutputFormat.java    public void write(K key, V value) throws IOException {     &...
http://issues.apache.org/jira/browse/MAPREDUCE-2548    Author: Devaraj K, 2013-01-17, 13:07
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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