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[MAPREDUCE-2372] TaskLogAppender mechanism shouldn't be set in log4j.properties - MapReduce - [issue]
...The TaskLogAppender log4j appender relies on using log4j.properties to pass in some Java system properties into properties of the logger. This is problematic since we've often found that use...
http://issues.apache.org/jira/browse/MAPREDUCE-2372    Author: Todd Lipcon, 2011-12-12, 06:19
[MAPREDUCE-2219] JT should not try to remove mapred.system.dir during startup - MapReduce - [issue]
...During startup, the JT tries to clean up mapred.system.dir by recursively removing it and then recreating it. This requires that mapred.system.dir is inside a directory owned by the mapred u...
http://issues.apache.org/jira/browse/MAPREDUCE-2219    Author: Todd Lipcon, 2011-12-12, 06:19
[MAPREDUCE-1621] Streaming's TextOutputReader.getLastOutput throws NPE if it has never read any output - MapReduce - [issue]
...If TextOutputReader.readKeyValue() has never successfully read a line, then its bytes member will be left null. Thus when logging a task failure, PipeMapRed.getContext() can trigger an NPE w...
http://issues.apache.org/jira/browse/MAPREDUCE-1621    Author: Todd Lipcon, 2011-12-12, 06:19
[MAPREDUCE-2051] Contribute a fair scheduler preemption system test - MapReduce - [issue]
...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...
http://issues.apache.org/jira/browse/MAPREDUCE-2051    Author: Todd Lipcon, 2011-12-12, 06:19
[MAPREDUCE-2472] Extra whitespace in mapred.child.java.opts breaks JVM initialization - MapReduce - [issue]
...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...
http://issues.apache.org/jira/browse/MAPREDUCE-2472    Author: Todd Lipcon, 2011-12-12, 06:19
[MAPREDUCE-2327] MapTask doesn't need to put username information in SpillRecord - MapReduce - [issue]
...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...
http://issues.apache.org/jira/browse/MAPREDUCE-2327    Author: Todd Lipcon, 2011-12-12, 06:18
[MAPREDUCE-2253] Servlets should specify content type - MapReduce - [issue]
...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...
http://issues.apache.org/jira/browse/MAPREDUCE-2253    Author: Todd Lipcon, 2011-12-12, 06:18
[MAPREDUCE-2383] Improve documentation of DistributedCache methods - MapReduce - [issue]
...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...
http://issues.apache.org/jira/browse/MAPREDUCE-2383    Author: Todd Lipcon, 2011-12-12, 06:18
[MAPREDUCE-714] JobConf.findContainingJar unescapes unnecessarily on Linux - MapReduce - [issue]
...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...
http://issues.apache.org/jira/browse/MAPREDUCE-714    Author: Todd Lipcon, 2011-12-12, 06:18
[MAPREDUCE-2096] Secure local filesystem IO from symlink vulnerabilities - MapReduce - [issue]
...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 ...
http://issues.apache.org/jira/browse/MAPREDUCE-2096    Author: Todd Lipcon, 2011-12-12, 06:18
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