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[MAPREDUCE-2051] Contribute a fair scheduler preemption system test - MapReduce - [issue]
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...We've seen a number of bugs in the fair share scheduler not caught by its unit tests, which are heavily mock-based. This JIRA is to add an integration/system/stress test for the fairshare sc...
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http://issues.apache.org/jira/browse/MAPREDUCE-2051
Author: Todd Lipcon,
2011-12-12, 06:19
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[MAPREDUCE-2472] Extra whitespace in mapred.child.java.opts breaks JVM initialization - MapReduce - [issue]
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...When creating taskjvm.sh, we split mapred.child.java.opts on " " and then create a quoted argument for each of those results. So, if you have an extra space anywhere in this configuration, y...
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http://issues.apache.org/jira/browse/MAPREDUCE-2472
Author: Todd Lipcon,
2011-12-12, 06:19
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[MAPREDUCE-2327] MapTask doesn't need to put username information in SpillRecord - MapReduce - [issue]
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...This is an amendment to MAPREDUCE-2096 that's found in Yahoo's 0.20.100 branch.This bug causes task failures in the following case: Cluster is not set up with LinuxTaskController (ie not sec...
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http://issues.apache.org/jira/browse/MAPREDUCE-2327
Author: Todd Lipcon,
2011-12-12, 06:18
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[MAPREDUCE-2253] Servlets should specify content type - MapReduce - [issue]
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...HADOOP-7093 will change the default content-type to text/plain. So TaskLogServlet, which outputs HTML, needs to change to specify this content type. I believe the other HTML servlets already...
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http://issues.apache.org/jira/browse/MAPREDUCE-2253
Author: Todd Lipcon,
2011-12-12, 06:18
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[MAPREDUCE-2383] Improve documentation of DistributedCache methods - MapReduce - [issue]
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...Users find the various methods in DistributedCache confusing - it's not clearly documented what the difference is between addArchiveToClassPath vs addFileToClassPath. We should improve the d...
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http://issues.apache.org/jira/browse/MAPREDUCE-2383
Author: Todd Lipcon,
2011-12-12, 06:18
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[MAPREDUCE-714] JobConf.findContainingJar unescapes unnecessarily on Linux - MapReduce - [issue]
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...In JobConf.findContainingJar, the path name is decoded using URLDecoder.decode(...). This was done by Doug in r381794 (commit msg "Un-escape containing jar's path, which is URL-encoded. &nbs...
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http://issues.apache.org/jira/browse/MAPREDUCE-714
Author: Todd Lipcon,
2011-12-12, 06:18
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[MAPREDUCE-2096] Secure local filesystem IO from symlink vulnerabilities - MapReduce - [issue]
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...This JIRA is to contribute a patch developed on the private security@ mailing list.The vulnerability is that MR daemons occasionally open files that are located in a path where the user has ...
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http://issues.apache.org/jira/browse/MAPREDUCE-2096
Author: Todd Lipcon,
2011-12-12, 06:18
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[MAPREDUCE-2266] JvmManager sleeps between SIGTERM and SIGKILL while holding many TT locks - MapReduce - [issue]
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...Between sending a task SIGTERM and SIGKILL, the JvmManager will sleep for sleepTimeBeforeSigKill millis. But in many call heirarchies this is done while holding important locks like the TT l...
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http://issues.apache.org/jira/browse/MAPREDUCE-2266
Author: Todd Lipcon,
2011-12-12, 06:09
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[MAPREDUCE-2268] With JVM reuse, JvmManager doesn't delete last workdir properly - MapReduce - [issue]
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...In JvmManager, when a Jvm exits, it tries to delete the workdir for initalContext.task which is null, hence throwing NPE. Currently this NPE is swallowed into the abyss.We should catch excep...
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http://issues.apache.org/jira/browse/MAPREDUCE-2268
Author: Todd Lipcon,
2011-12-12, 06:09
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Re: Multiple resource requests for a given node (or all nodes)? - MapReduce - [mail # dev]
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...On Sat, Dec 10, 2011 at 12:23 PM, Patrick Wendell wrote: My hunch is that this was overlooked because the resource sizes for MR are basically set on a per-task-type level. That ...
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Author: Todd Lipcon,
2011-12-11, 00:21
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