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[MAPREDUCE-682] Reserved tasktrackers should be removed when a node is globally blacklisted - MapReduce - [issue]
...When support was added to reserve tasktrackers for high RAM jobs per MAPREDUCE-516, we missed removing reservations on tasktrackers that are globally blacklisted. This is not a major concern...
http://issues.apache.org/jira/browse/MAPREDUCE-682    Author: Hemanth Yamijala, 2010-08-24, 21:14
[MAPREDUCE-522] Rewrite TestQueueCapacities to make it simpler and avoid timeout errors - MapReduce - [issue]
...We have seen TestQueueCapacities fail periodically and there have been a couple of times fixes partially fixed the problem, the most recent instance being HADOOP-5869. I found another instan...
http://issues.apache.org/jira/browse/MAPREDUCE-522    Author: Hemanth Yamijala, 2010-08-24, 21:13
[MAPREDUCE-467] Collect information about number of tasks succeeded / total per time unit for a tasktracker. - MapReduce - [issue]
...Collecting information of number of tasks succeeded / total per tasktracker and being able to see these counts per hour, day and since start time will help reason about things like the black...
http://issues.apache.org/jira/browse/MAPREDUCE-467    Author: Hemanth Yamijala, 2010-08-24, 21:13
[MAPREDUCE-591] TestStreamingStderr fails occassionally - MapReduce - [issue]
...TestStreamingStderr fails occassionally with a timeout on trunk....
http://issues.apache.org/jira/browse/MAPREDUCE-591    Author: Hemanth Yamijala, 2010-07-06, 10:44
[MAPREDUCE-1575] TestStreamingAsDifferentUser.testStreamingWithDistCache tries to set permissions for a non-existent file. - MapReduce - [issue]
...TestStreamingAsDifferentUser.testStreamingWithDistCache, in an effort to mock public distributed cache files, sets up world executable permissions on the parent directory of a public cache f...
http://issues.apache.org/jira/browse/MAPREDUCE-1575    Author: Hemanth Yamijala, 2010-03-08, 18:52
[MAPREDUCE-828] Provide a mechanism to pause the jobtracker - MapReduce - [issue]
...We've seen scenarios when we have needed to stop the namenode for a maintenance activity. In such scenarios, if the jobtracker (JT) continues to run, jobs would fail due to initialization or...
http://issues.apache.org/jira/browse/MAPREDUCE-828    Author: Hemanth Yamijala, 2010-02-23, 18:18
[MAPREDUCE-1331] TestMiniMRWithDFS.testWithDFSWithDefaultPort inadvertently mistyped - MapReduce - [issue]
...One of the patches, possibly MAPREDUCE-181, inadvertently mistyped TestMiniMRWithDFS.testWithDFSWithDefaultPort to tesWithDFSWithDefaultPort. As a result it wouldn't run as a JUnit test....
http://issues.apache.org/jira/browse/MAPREDUCE-1331    Author: Hemanth Yamijala, 2010-01-05, 15:58
[MAPREDUCE-1099] Setup and cleanup tasks could affect job latency if they are caught running on bad nodes - MapReduce - [issue]
...We found cases on our clusters where a setup task got scheduled on a bad node and took upwards of several minutes to run, adversely affecting job runtimes. Speculation did not help here as s...
http://issues.apache.org/jira/browse/MAPREDUCE-1099    Author: Hemanth Yamijala, 2009-12-14, 20:01
[MAPREDUCE-514] Check for invalid queues in capacity scheduler - MapReduce - [issue]
...The ResourceManagerConf class that is being moved to the capacity scheduler of HADOOP-3445 needs to check for a queue name that is not configured in the resource-manager-conf.xml file in its...
http://issues.apache.org/jira/browse/MAPREDUCE-514    Author: Hemanth Yamijala, 2009-11-17, 06:26
[MAPREDUCE-860] Modify Queue APIs to support a hierarchy of queues - MapReduce - [issue]
...MAPREDUCE-853 proposes to introduce a hierarchy of queues into the Map/Reduce framework. This JIRA is for defining changes to the APIs related to queues....
http://issues.apache.org/jira/browse/MAPREDUCE-860    Author: Hemanth Yamijala, 2009-09-07, 06:54
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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