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[MAPREDUCE-1144] JT should not hold lock while writing user history logs to DFS - MapReduce - [issue]
...I've seen behavior a few times now where the DFS is being slow for one reason or another, and the JT essentially locks up waiting on it while one thread tries for a long time to write histor...
http://issues.apache.org/jira/browse/MAPREDUCE-1144    Author: Todd Lipcon, 2015-03-19, 23:14
[MAPREDUCE-4274] MapOutputBuffer should use native byte order for kvmeta - MapReduce - [issue]
...I don't have a benchmark to support this, but this should give a small CPU improvement on the map output buffer: currently, we create kvmeta as ByteBuffer.wrap(kvbuffer).asIntBuffer(). Accor...
http://issues.apache.org/jira/browse/MAPREDUCE-4274    Author: Todd Lipcon, 2015-03-16, 18:44
[MAPREDUCE-2371] TaskLogsTruncater does not need to check log ownership when running as Child - MapReduce - [issue]
...Before MAPREDUCE-2178, it used to be that the TaskLogsTruncater had to use the SecureIO API to open the task logs before truncation, to avoid an attack where the user would symlink in someth...
http://issues.apache.org/jira/browse/MAPREDUCE-2371    Author: Todd Lipcon, 2015-03-10, 01:01
[MAPREDUCE-2461] Hudson jobs failing because mapred staging directory is full - MapReduce - [issue]
...All of the tests that submit MR jobs are failing on the h7 build machine. This is because the staging directory is entirely full:hudson@h7:/tmp/mr/mr$ ls -l /tmp/hadoop-hudson/mapred/staging...
http://issues.apache.org/jira/browse/MAPREDUCE-2461    Author: Todd Lipcon, 2015-03-09, 20:35
[MAPREDUCE-2884] tmpjars not working when default filesystem mismatches between client and server - MapReduce - [issue]
...One of the HBase tests is failing which tries to add a local file to the distributed cache using the "tmpjars" configuration variable. The first half of the distributedcache setup decides no...
http://issues.apache.org/jira/browse/MAPREDUCE-2884    Author: Todd Lipcon, 2015-03-09, 20:33
[MAPREDUCE-2498] TestRaidShellFsck failing on trunk - MapReduce - [issue]
...TestRaidShellFsck.testFileBlockAndParityBlockMissingHar2 has been failing the last several builds:Error Message: parity file not HARed after 40sjava.io.IOException: parity file not HARed aft...
http://issues.apache.org/jira/browse/MAPREDUCE-2498    Author: Todd Lipcon, 2015-03-09, 20:32
[MAPREDUCE-2883] MR FI tests failing to build - MapReduce - [issue]
...running ant mvn-install in hadoop-mapreduce-project on branch-0.23 fails in the fault injection compilation...
http://issues.apache.org/jira/browse/MAPREDUCE-2883    Author: Todd Lipcon, 2015-03-09, 20:31
[MAPREDUCE-6068] Illegal progress value warnings in map tasks - MapReduce - [issue]
...When running a terasort on latest trunk, I see the following in my task logs:2014-09-02 17:42:28,437 INFO [main] org.apache.hadoop.mapred.MapTask: Map output collector class = org.apache.had...
http://issues.apache.org/jira/browse/MAPREDUCE-6068    Author: Todd Lipcon, 2014-12-15, 03:54
[MAPREDUCE-5974] Allow specifying multiple MapOutputCollectors with fallback - MapReduce - [issue]
...Currently we only allow specifying a single MapOutputCollector implementation class in a job. It would be nice to allow a comma-separated list of classes: we should try each collector implem...
http://issues.apache.org/jira/browse/MAPREDUCE-5974    Author: Todd Lipcon, 2014-12-14, 04:22
[expand - 1 more] - Re: [VOTE] Merge branch MAPREDUCE-2841 to trunk - MapReduce - [mail # dev]
...With four committer +1s, this vote passes.I'll take care of merging this to trunk either later tonight or over theweekend.Thanks to all of the contributors who helped with this work!-Todd&nb...
   Author: Todd Lipcon, 2014-09-13, 01:31
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NEW: Monitor These Apps!
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