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[MAPREDUCE-4941] Use of org.apache.hadoop.mapred.lib.CombineFileRecordReader requires casting - MapReduce - [issue]
...Unlike its counterpart in org.apache.hadoop.mapreduce.lib.input, the CombineFileRecordReader in mapred requires a user to cast to a RecordReader since the constructor specification says it m...
http://issues.apache.org/jira/browse/MAPREDUCE-4941    Author: Jason Lowe, 2014-04-08, 15:33
[MAPREDUCE-5493] In-memory map outputs can be leaked after shuffle completes - MapReduce - [issue]
...MergeManagerImpl#close adds the contents of inMemoryMergedMapOutputs and inMemoryMapOutputs to a list of map outputs that is subsequently processed, but it does not clear those sets.  T...
http://issues.apache.org/jira/browse/MAPREDUCE-5493    Author: Jason Lowe, 2014-03-19, 18:42
[MAPREDUCE-5727] History server web page can filter without showing filter keyword - MapReduce - [issue]
...I loaded up a job conf page on the history server and used one of the search boxes to narrow the results.  I then navigated to other pages (e.g.: map tasks, logs, etc.) then navigated b...
http://issues.apache.org/jira/browse/MAPREDUCE-5727    Author: Jason Lowe, 2014-03-11, 21:31
[MAPREDUCE-5656] bzip2 codec can drop records when reading data in splits - MapReduce - [issue]
...Bzip2Codec.BZip2CompressionInputStream can cause records to be dropped when reading them in splits based on where record delimiters occur relative to compression block boundaries.Thanks to K...
http://issues.apache.org/jira/browse/MAPREDUCE-5656    Author: Jason Lowe, 2014-02-27, 14:40
[MAPREDUCE-5265] History server admin service to refresh user and superuser group mappings - MapReduce - [issue]
...The history server needs an admin interface with the ability to1. refresh the super user groups configurations,2. refresh user to group mappings,3. refresh its admin acls,4. get groups given...
http://issues.apache.org/jira/browse/MAPREDUCE-5265    Author: Jason Lowe, 2014-02-24, 20:58
Re: [VOTE] Release Apache Hadoop 2.3.0 - MapReduce - [mail # dev]
...+1 (binding)- Verified signatures and digests- Built from source with native support- Deployed a single-node cluster and ran some sample jobsJasonOn 02/11/2014 08:49 AM, Arun C Murthy wrote:...
   Author: Jason Lowe, 2014-02-18, 14:42
[MAPREDUCE-5513] ConcurrentModificationException in JobControl - MapReduce - [issue]
...JobControl.toList is locking individual lists to iterate them, but those lists can be modified elsewhere without holding the list lock.  The locking approaches are mismatched, with toLi...
http://issues.apache.org/jira/browse/MAPREDUCE-5513    Author: Jason Lowe, 2014-02-13, 20:55
[MAPREDUCE-5746] Job diagnostics can implicate wrong task for a failed job - MapReduce - [issue]
...We've seen a number of cases where the history server is showing the wrong task as the reason a job failed.  For example, "Task task_1383802699973_515536_m_027135 failed 1 times" when s...
http://issues.apache.org/jira/browse/MAPREDUCE-5746    Author: Jason Lowe, 2014-02-13, 14:53
[expand - 1 more] - Re: Re-swizzle 2.3 - MapReduce - [mail # dev]
...I noticed that somehow the target version field in JIRA was invisibly cleared on most of the Blocker/Critical JIRAs that were originally targeted for 2.3.0/2.4.0.  I happened to have an...
   Author: Jason Lowe, 2014-01-29, 20:31
[MAPREDUCE-5534] Improve job configuration handling when MapReduce deployed via HDFS - MapReduce - [issue]
...This is a followup JIRA to MAPREDUCE-4421.  Currently the *-site.xml files are loaded from files already present on each node, but loading of those site files may not be appropriate...
http://issues.apache.org/jira/browse/MAPREDUCE-5534    Author: Jason Lowe, 2014-01-28, 23:33
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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