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[MAPREDUCE-3476] Optimize YARN API calls - MapReduce - [issue]
...Several YARN API calls are taking inordinately long. This might be a performance blocker....
http://issues.apache.org/jira/browse/MAPREDUCE-3476    Author: Ravi Prakash, 2014-04-22, 20:13
[MAPREDUCE-5390] JOB_FAIL and JOB_KILL have different behaviors when they should ideally be same / similar. - MapReduce - [issue]
...After MAPREDUCE-5317, both JOB_KILL and JOB_FAIL wait for all the tasks to die / be killed, and then move to their final states. We can make these two code paths the same. Ideally KILL_WAIT ...
http://issues.apache.org/jira/browse/MAPREDUCE-5390    Author: Ravi Prakash, 2013-07-19, 02:08
[MAPREDUCE-3135] Unit test org.apache.hadoop.mapred.TestJobHistoryServer fails intermittently - MapReduce - [issue]
...Every once in a while org.apache.hadoop.mapred.TestJobHistoryServer fails due to a timeout....
http://issues.apache.org/jira/browse/MAPREDUCE-3135    Author: Ravi Prakash, 2013-06-05, 23:27
[MAPREDUCE-4989] JSONify DataTables input data for Attempts page - MapReduce - [issue]
...Use deferred rendering for the attempts page as was done in MAPREDUCE-4720. I'm sorry I didn't realize earlier that this table could be huge too. Thanks to Jason Lowe for pointing it out....
http://issues.apache.org/jira/browse/MAPREDUCE-4989    Author: Ravi Prakash, 2013-04-10, 18:30
[MAPREDUCE-4802] Takes a long time to load the task list on the AM for large jobs - MapReduce - [issue]
...We should turn on deferred rendering in DataTables as suggested by Luke here: https://issues.apache.org/jira/browse/YARN-151?focusedCommentId=13475811&page=com.atlassian.jira.plugin.syst...
http://issues.apache.org/jira/browse/MAPREDUCE-4802    Author: Ravi Prakash, 2013-02-06, 17:05
[MAPREDUCE-4786] Job End Notification retry interval is 5 milliseconds by default - MapReduce - [issue]
...Courtesy Steven Willis and Harsh JFrom: Harsh JI believe the configs of the latter of both of the aboveclassifications were meant to be added in as replacement names, butthe property names g...
http://issues.apache.org/jira/browse/MAPREDUCE-4786    Author: Ravi Prakash, 2013-02-06, 17:05
[MAPREDUCE-4227] TimeWindow statistics are not updated for TaskTrackers which have been restarted. - MapReduce - [issue]
...Whenever a TaskTracker is restarted after the JobTracker has been running for a while (an hour / day maybe), the TimeWindow statistics on the JobTracker Active nodes page are stuck at 0....
http://issues.apache.org/jira/browse/MAPREDUCE-4227    Author: Ravi Prakash, 2013-01-28, 16:11
[MAPREDUCE-4811] JobHistoryServer should show when it was started in WebUI About page - MapReduce - [issue]
...Unlike the RM, the JHS doesn't show when it was started....
http://issues.apache.org/jira/browse/MAPREDUCE-4811    Author: Ravi Prakash, 2012-11-22, 13:23
[MAPREDUCE-4787] TestJobMonitorAndPrint is broken - MapReduce - [issue]
...Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.169 sec <<< FAILURE!testJobMonitorAndPrint(org.apache.hadoop.mapreduce.TestJobMonitorAndPrint)  Time elapsed: ...
http://issues.apache.org/jira/browse/MAPREDUCE-4787    Author: Ravi Prakash, 2012-11-13, 14:03
[MAPREDUCE-4088] Task stuck in JobLocalizer prevented other tasks on the same node from committing - MapReduce - [issue]
...We saw that as a result of HADOOP-6963, one task was stuck in thisThread 23668: (state = IN_NATIVE) java.io.UnixFileSystem.getBooleanAttributes0(java.io.File) @bci=0 (Compiled frame; informa...
http://issues.apache.org/jira/browse/MAPREDUCE-4088    Author: Ravi Prakash, 2012-10-30, 20:55
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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