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[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
[MAPREDUCE-6157] Connect failed in shuffle (due to NM down) could break current retry logic to tolerant NM restart. - MapReduce - [issue]
...The connection failure log during NM restart is as following:014-11-12 03:31:20,728 WARN [fetcher#23] org.apache.hadoop.mapreduce.task.reduce.Fetcher: Failed to connect to ip-172-31-37-212.e...
http://issues.apache.org/jira/browse/MAPREDUCE-6157    Author: Junping Du, 2014-11-12, 14:33
[MAPREDUCE-6146] Reduce tar ball size for MR over distributed cache - MapReduce - [issue]
...The current tar ball built from "mvn package -Pdist -DskipTests -Dtar" is over 160M in size. We need more smaller tar ball pieces for feature like MR over distributed cache to support Rollin...
http://issues.apache.org/jira/browse/MAPREDUCE-6146    Author: Junping Du, 2014-11-04, 01:30
[MAPREDUCE-6052] Support overriding log4j.properties per job - MapReduce - [issue]
...For current MR application, the "log4j.configuration" is hard coded to container-log4j.properties within each node. We still need flexibility to override it per job like what we do in MRV1.&...
http://issues.apache.org/jira/browse/MAPREDUCE-6052    Author: Junping Du, 2014-11-04, 00:19
[MAPREDUCE-6149] Document override log4j.properties in MR job - MapReduce - [issue]
...This new feature comes from MAPREDUCE-6052, some documentation requirements from Vinod below:    Document the new config in mapred-default.xml    Mention in tha...
http://issues.apache.org/jira/browse/MAPREDUCE-6149    Author: Junping Du, 2014-11-02, 04:47
[MAPREDUCE-6126] (Rumen) Rumen tool returns error "ava.lang.IllegalArgumentException: JobBuilder.process(HistoryEvent): unknown event type" - MapReduce - [issue]
...java.lang.IllegalArgumentException: JobBuilder.process(HistoryEvent): unknown event type at org.apache.hadoop.tools.rumen.JobBuilder.process(JobBuilder.java:172) at org.apache.hadoop.tools.r...
http://issues.apache.org/jira/browse/MAPREDUCE-6126    Author: Junping Du, 2014-10-23, 16:13
[MAPREDUCE-5963] ShuffleHandler DB schema should be versioned with compatible/incompatible changes - MapReduce - [issue]
...ShuffleHandler persist job shuffle info into DB schema, which should be versioned with compatible/incompatible changes to support rolling upgrade....
http://issues.apache.org/jira/browse/MAPREDUCE-5963    Author: Junping Du, 2014-09-03, 20:49
Re: [VOTE] Migration from subversion to git for version control - MapReduce - [mail # dev]
...+1.Thanks,JunpingOn Sat, Aug 9, 2014 at 10:57 AM, Karthik Kambatla wrote:CONFIDENTIALITY NOTICENOTICE: This message is intended for the use of the individual or entity to which it is address...
   Author: Junping Du, 2014-08-11, 13:08
[MAPREDUCE-6023] Fix SuppressWarnings from "unchecked" to "rawtypes" in O.A.H.mapreduce.lib.input.TaggedInputSplit - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-6023    Author: Junping Du, 2014-08-07, 11:59
Re: [DISCUSS] Change by-laws on release votes: 5 days instead of 7 - MapReduce - [mail # dev]
...+1. Non-binding.Thanks,JunpingOn Fri, Jun 20, 2014 at 10:54 PM, Arun C Murthy  wrote:CONFIDENTIALITY NOTICENOTICE: This message is intended for the use of the individual or entity to wh...
   Author: Junping Du, 2014-06-21, 11:41
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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