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[MAPREDUCE-3546] slf4j versions mismatched between yarn and hdfs - MapReduce - [issue]
...Running a cluster on trunk, I ran into an issue caused by the differing slf4j versions between YARN and HDFS. YARN is currently using 1.6.1 whereas HDFS is using 1.5.11. Unclear whether we s...
http://issues.apache.org/jira/browse/MAPREDUCE-3546    Author: Todd Lipcon, 2012-03-23, 20:03
[expand - 2 more] - Re: svn commit: r1304067 - in /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project: ./ bin/ conf/ hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/ hadoop-mapreduce-examples/ hadoop-yarn/hadoop-yarn-site/ hadoop-yarn/ha - MapReduce - [mail # dev]
...On Thu, Mar 22, 2012 at 5:03 PM, Owen O'Malley  wrote:  +1. I never even use the svn merge command to merge between branches. I just apply the patch separately to each branch. The ...
   Author: Todd Lipcon, 2012-03-23, 00:21
[MAPREDUCE-2294] Mumak won't compile in MR trunk - MapReduce - [issue]
...HADOOP-6904 added a required getProtocolSignature() method for protocols, but the mock JT in Mumak doesn't implement this. So, MR trunk is currently failing....
http://issues.apache.org/jira/browse/MAPREDUCE-2294    Author: Todd Lipcon, 2012-03-12, 05:51
[MAPREDUCE-3948] proxy throws UnknownHostException when following link shortly after job submission - MapReduce - [issue]
...I submitted a job and then clicked on the link from the console quickly, before the job began to run. I saw the following exception:java.net.UnknownHostException: N...     &nb...
http://issues.apache.org/jira/browse/MAPREDUCE-3948    Author: Todd Lipcon, 2012-03-06, 16:37
[expand - 1 more] - Re: Optimized Hadoop - MapReduce - [mail # dev]
...On Thu, Feb 16, 2012 at 8:25 PM, Schubert Zhang  wrote:  right - that's a nice improvement, looking forward to getting that in trunk at some point.   Looking at the code, it s...
   Author: Todd Lipcon, 2012-02-17, 18:07
[MAPREDUCE-2592] TT should fail task immediately if userlog dir cannot be created - MapReduce - [issue]
...Currently, TaskRunner will log the message "mkdirs failed. Ignoring" if it fails to mkdir the userlog directory for a task. Then, it goes on to spawn taskjvm.sh which tries to redirect outpu...
http://issues.apache.org/jira/browse/MAPREDUCE-2592    Author: Todd Lipcon, 2012-02-11, 17:51
[MAPREDUCE-2301] TestDataDrivenDBInputFormat fails if port 9001 is occupied - MapReduce - [issue]
...If you have any process listening on port 9001 (the default hsqldb port) then TestDataDrivenDBInputFormat will fail with:Connection is broken: java.io.EOFExceptionjava.sql.SQLException: Conn...
http://issues.apache.org/jira/browse/MAPREDUCE-2301    Author: Todd Lipcon, 2012-01-30, 13:42
[MAPREDUCE-3210] Support delay scheduling for node locality in MR2's capacity scheduler - MapReduce - [issue]
...The capacity scheduler in MR2 doesn't support delay scheduling for achieving node-level locality. So, jobs exhibit poor data locality even if they have good rack locality. Especially on clus...
http://issues.apache.org/jira/browse/MAPREDUCE-3210    Author: Todd Lipcon, 2012-01-03, 15:35
[MAPREDUCE-3169] Create a new MiniMRCluster equivalent which only provides client APIs cross MR1 and MR2 - MapReduce - [issue]
...Many dependent projects like HBase, Hive, Pig, etc, depend on MiniMRCluster for writing tests. Many users do as well. MiniMRCluster, however, exposes MR implementation details like the exist...
http://issues.apache.org/jira/browse/MAPREDUCE-3169    Author: Todd Lipcon, 2011-12-28, 10:03
Re: Performance of direct vs indirect shuffling - MapReduce - [mail # user]
...The advantages of the "pull" based shuffle is fault tolerance - if you shuffle to the reducer and then the reducer dies, you have to rerun *all* of the earlier maps in the "push" model. &nbs...
   Author: Todd Lipcon, 2011-12-21, 00:53
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