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[MAPREDUCE-6169] MergeQueue should release reference to the current item from key and value at the end of the iteration to save memory. - MapReduce - [issue]
...MergeQueue should release reference to the current item from key and value at the end of the iteration to save memory.these buffers referenced by key and value can be large, which may cause ...
http://issues.apache.org/jira/browse/MAPREDUCE-6169    Author: zhihai xu, 2014-11-21, 15:44
[MAPREDUCE-5989] Add DeletionService in AM - MapReduce - [issue]
...In AM, for graceful cleanup, I propose addition of a DeletionService which will do the following :1. Cleanup of failed tasks (temporary data need not occupy space till NM's Deletion Service ...
http://issues.apache.org/jira/browse/MAPREDUCE-5989    Author: Varun Saxena, 2014-11-21, 09:09
[MAPREDUCE-6170] TestUlimit failure on JDK8 - MapReduce - [issue]
...TestUlimit#testCommandLine fails on JDK8, because the map task JVM fails to launch. We're setting the virtual memory limit too low, and the JVM errors out with: Could not allocate metaspace...
http://issues.apache.org/jira/browse/MAPREDUCE-6170    Author: bc Wong, 2014-11-20, 23:14
[MAPREDUCE-6161] mapred hsadmin command missing from trunk - MapReduce - [issue]
...The hsadmin subcommand of the mapred script is no longer present in trunk. It is present in branch-2....
http://issues.apache.org/jira/browse/MAPREDUCE-6161    Author: Jason Lowe, 2014-11-20, 17:55
[MAPREDUCE-5673] It would be great if we can know which host(IP) the client submitted job in jobhistory web UI - MapReduce - [issue]
...Current Hadoop jobhistory web UI cann't list which host(IP) the client submitted the job, and it would be great if we can know which host(IP) the client submitted job in jobhistory web UI....
http://issues.apache.org/jira/browse/MAPREDUCE-5673    Author: yangping wu, 2014-11-20, 06:37
[MAPREDUCE-6167] Prior 2.4 MR has compatibility issue because o.a.h.http.HttpConfig.setPolicy is removed - MapReduce - [issue]
...a. In the following scenarios:1. Either insecure or secure;2. MR 2.2 with either old or new shuffle handler on NM;3. Submitting via new client.We will see the following console exception:14/...
http://issues.apache.org/jira/browse/MAPREDUCE-6167    Author: Zhijie Shen, 2014-11-19, 20:29
[MAPREDUCE-6049] AM JVM does not exit if MRClientService gracefull shutdown fails - MapReduce - [issue]
...Eventhough job got FAILED, AM process still not exitingThreadDump of AM process is below"Job Fail Wait Timeout Monitor #0" daemon prio=10 tid=0x0000000000aa9000 nid=0x41fa waiting on conditi...
http://issues.apache.org/jira/browse/MAPREDUCE-6049    Author: Nishan Shetty, 2014-11-19, 15:26
[MAPREDUCE-5911] Terasort TeraOutputFormat does not check for output directory existance - MapReduce - [issue]
...The enforcement that the directory must not yet exist is implemented in FileOutputFormat#checkOutputSpecs by throwing FileAlreadyExistsException.  However, terasort uses a specialized o...
http://issues.apache.org/jira/browse/MAPREDUCE-5911    Author: Ivan Mitic, 2014-11-19, 02:59
[expand - 3 more] - Re: Mapreduce -shuffle and sort enhancement. - MapReduce - [mail # dev]
...Hi Nada!Please visit https://github.com/apache/hadoop to clone the source code. Please familiarize yourself with git. You should be able to create branches in your local repository.HTHRavi&n...
   Author: Ravi Prakash, 2014-11-18, 18:36
[MAPREDUCE-6164] "mapreduce.reduce.shuffle.fetch.retry.timeout-ms" should be set to 3 minutes instead of 30 seconds by default to be consistent with other retry timeout - MapReduce - [issue]
...In MAPREDUCE-5891, we are adding retry logic to MAPREDUCE shuffle stage for fetcher can be survival during NM downtime (with shuffle service down as well). In many places, we are setting the...
http://issues.apache.org/jira/browse/MAPREDUCE-6164    Author: Junping Du, 2014-11-18, 18:02
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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