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[MAPREDUCE-5811] Job history subdirectories under done directory is not set with proper permissions accessible to users - MapReduce - [issue]
...This is regarding the Hadoop log file access. The new directories under /mapred/history/done/2014/mm/dd/ are getting created with 770 permission. So the user could not read logs on HDFS. the...
http://issues.apache.org/jira/browse/MAPREDUCE-5811    Author: chaitali gupta, 2014-04-07, 23:02
[MAPREDUCE-5733] (Configugration) conf.set("textinputformat.record.delimiter","myDelimiter") , is bound to typo error. Lets have it as a Static String in some class, to minimise such error. This would also help in IDE like eclipse suggesting the String. - MapReduce - [issue]
...(Configugration) conf.set("textinputformat.record.delimiter","myDelimiter") , is bound to typo error. Lets have it as a Static String in some class, to minimise such error. This would also h...
http://issues.apache.org/jira/browse/MAPREDUCE-5733    Author: Gelesh, 2014-04-07, 09:31
[MAPREDUCE-2841] Task level native optimization - MapReduce - [issue]
...I'm recently working on native optimization for MapTask based on JNI. The basic idea is that, add a NativeMapOutputCollector to handle k/v pairs emitted by mapper, therefore sort, spill, IFi...
http://issues.apache.org/jira/browse/MAPREDUCE-2841    Author: Binglin Chang, 2014-04-05, 23:32
[MAPREDUCE-2217] The expire launching task should cover the UNASSIGNED task - MapReduce - [issue]
...The ExpireLaunchingTask thread kills the task that are scheduled but not responded.Currently if a task is scheduled on tasktracker and for some reason tasktracker cannot put it to RUNNING.Th...
http://issues.apache.org/jira/browse/MAPREDUCE-2217    Author: Scott Chen, 2014-04-05, 19:01
[MAPREDUCE-5785] Derive task attempt JVM max heap size and io.sort.mb automatically from mapreduce.*.memory.mb - MapReduce - [issue]
...Currently users have to set 2 memory-related configs per Job / per task type.  One first chooses some container size map reduce.*.memory.mb and then a corresponding maximum Java hea...
http://issues.apache.org/jira/browse/MAPREDUCE-5785    Author: Gera Shegalov, 2014-04-04, 17:59
[MAPREDUCE-5818] hsadmin cmd is missing in mapred.cmd - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-5818    Author: Jian He, 2014-04-04, 14:44
[MAPREDUCE-5014] Extending DistCp through a custom CopyListing is not possible - MapReduce - [issue]
...While it is possible to implement a custom CopyListing in DistCp, DistCp driver class doesn't allow for using this custom CopyListing. Allow SimpleCopyListing to provide an option to exclude...
http://issues.apache.org/jira/browse/MAPREDUCE-5014    Author: Srikanth Sundarrajan, 2014-04-03, 14:58
[MAPREDUCE-2980] Fetch failures and other related issues in Jetty 6.1.26 - MapReduce - [issue]
...Since upgrading Jetty from 6.1.14 to 6.1.26 we've had a ton of HTTP-related issues, including: Much higher incidence of fetch failures A few strange file-descriptor related bugs (eg MAPREDUC...
http://issues.apache.org/jira/browse/MAPREDUCE-2980    Author: Todd Lipcon, 2014-04-03, 11:17
[MAPREDUCE-5783] web UI update to allow people to request thread dump of a running task. - MapReduce - [issue]
...This depends on https://issues.apache.org/jira/browse/YARN-445....
http://issues.apache.org/jira/browse/MAPREDUCE-5783    Author: Ming Ma, 2014-04-03, 09:37
[MAPREDUCE-5819] Binary token merge should be done once in TokenCache#obtainTokensForNamenodesInternal() - MapReduce - [issue]
...Currently mergeBinaryTokens() is called by every invocation of obtainTokensForNamenodesInternal(FileSystem, Credentials, Configuration) in the loop of obtainTokensForNamenodesInternal(Creden...
http://issues.apache.org/jira/browse/MAPREDUCE-5819    Author: Ted Yu, 2014-04-03, 00:36
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