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[MAPREDUCE-3267] MR2 reduce tasks showing >100% complete - MapReduce - [issue]
...My job is currently showing >100% reduce completion. Some reduce tasks are much higher than 100% complete. they appear to be in the "last merge pass" stage...
http://issues.apache.org/jira/browse/MAPREDUCE-3267    Author: Todd Lipcon, 2013-01-28, 23:03
[MAPREDUCE-4221] Remove jquery theming support - MapReduce - [issue]
...As of today we have 9.4MB of JQuery themes in our code tree. In addition to being a waste of space, it's a highly questionable feature. I've never heard anyone complain that the Hadoop inter...
http://issues.apache.org/jira/browse/MAPREDUCE-4221    Author: Todd Lipcon, 2012-11-13, 20:44
[MAPREDUCE-486] JobTracker web UI counts COMMIT_PENDING tasks as Running - MapReduce - [issue]
...In jobdetails.jsp, tasks in COMMIT_PENDING state are listed as "Running". I propose creating another column in this table for COMMIT_PENDING tasks, since users find it confusing that a given...
http://issues.apache.org/jira/browse/MAPREDUCE-486    Author: Todd Lipcon, 2012-10-17, 23:30
[MAPREDUCE-2376] test-task-controller fails if run as a userid < 1000 - MapReduce - [issue]
...test-task-controller tries to verify that the task-controller won't run on behalf of users with uid < 1000. This makes the test fail when running in some test environments - eg our hudson...
http://issues.apache.org/jira/browse/MAPREDUCE-2376    Author: Todd Lipcon, 2012-10-17, 22:59
[MAPREDUCE-3394] Add log guard for a debug message in ReduceTask - MapReduce - [issue]
...There's a LOG.debug message in ReduceTask that stringifies a task ID and uses a non-negligible amount of CPU in some cases. We should guard it with isDebugEnabled...
http://issues.apache.org/jira/browse/MAPREDUCE-3394    Author: Todd Lipcon, 2012-10-17, 19:27
[MAPREDUCE-2103] task-controller shouldn't require o-r permissions - MapReduce - [issue]
...The task-controller currently checks that "other" users don't have read permissions. This is unnecessary - we just need to make it's not executable. The debian policy manual explains it well...
http://issues.apache.org/jira/browse/MAPREDUCE-2103    Author: Todd Lipcon, 2012-10-17, 19:27
[MAPREDUCE-1740] NPE in getMatchingLevelForNodes when node locations are variable depth - MapReduce - [issue]
...In getMatchingLevelForNodes, we assume that both nodes have the same "depth" (ie number of path components). If the user provides a topology script that assigns one node a path like /foo/bar...
http://issues.apache.org/jira/browse/MAPREDUCE-1740    Author: Todd Lipcon, 2012-10-17, 19:27
[MAPREDUCE-3278] 0.20: avoid a busy-loop in ReduceTask scheduling - MapReduce - [issue]
...Looking at profiling results, it became clear that the ReduceTask has the following busy-loop which was causing it to suck up 100% of CPU in the fetch phase in some configurations: the numbe...
http://issues.apache.org/jira/browse/MAPREDUCE-3278    Author: Todd Lipcon, 2012-10-17, 19:27
[MAPREDUCE-2073] TestTrackerDistributedCacheManager should be up-front about requirements on build environment - MapReduce - [issue]
...TestTrackerDistributedCacheManager will fail on a system where the build directory is in any path where an ancestor doesn't have a+x permissions. On one of our hudson boxes, for example, hud...
http://issues.apache.org/jira/browse/MAPREDUCE-2073    Author: Todd Lipcon, 2012-10-17, 19:27
[MAPREDUCE-782] Use PureJavaCrc32 in mapreduce spills - MapReduce - [issue]
...HADOOP-6148 implemented a Pure Java implementation of CRC32 which performs better than the built-in one. This issue is to make use of it in the mapred package...
http://issues.apache.org/jira/browse/MAPREDUCE-782    Author: Todd Lipcon, 2012-09-25, 19:00
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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