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[MAPREDUCE-3289] Make use of fadvise in the NM's shuffle handler - MapReduce - [issue]
...Using the new NativeIO fadvise functions, we can make the NodeManager prefetch map output before it's send over the socket, and drop it out of the fs cache once it's been sent (since it's ve...
http://issues.apache.org/jira/browse/MAPREDUCE-3289    Author: Todd Lipcon, 2012-09-25, 17:28
[MAPREDUCE-2704] CombineFileInputFormat only works when paths are on the default filesystem - MapReduce - [issue]
...CombineFileInputFormat constructs new Path objects by converting an existing path to a URI, and then only pulling out the "path" part of it. This drops the scheme and host, which makes Combi...
http://issues.apache.org/jira/browse/MAPREDUCE-2704    Author: Todd Lipcon, 2012-09-19, 20:28
[MAPREDUCE-3993] Graceful handling of codec errors during decompression - MapReduce - [issue]
...When using a compression codec for intermediate compression, some cases of corrupt data can cause the codec to throw exceptions other than IOException (eg java.lang.InternalError). This will...
http://issues.apache.org/jira/browse/MAPREDUCE-3993    Author: Todd Lipcon, 2012-09-07, 22:10
[MAPREDUCE-2855] ResourceBundle lookup during counter name resolution takes a lot of time - MapReduce - [issue]
...Loading a job status page in trunk takes a lot of time, and it seems like most of the time is spent resolving counter names. Looking through the JDK source, ResourceBundle.getBundle(String) ...
http://issues.apache.org/jira/browse/MAPREDUCE-2855    Author: Todd Lipcon, 2012-08-19, 06:22
[MAPREDUCE-2565] TestMRCLI still failing on trunk - MapReduce - [issue]
...I imagine this is related to the recent shell commands. Here is an example failed test:https://builds.apache.org//job/PreCommit-MAPREDUCE-Build/344//testReport/org.apache.hadoop.cli/TestMRCL...
http://issues.apache.org/jira/browse/MAPREDUCE-2565    Author: Todd Lipcon, 2012-07-10, 21:27
[MAPREDUCE-2242] LinuxTaskController doesn't properly escape environment variables - MapReduce - [issue]
...LinuxTaskController currently just writes "export FOO=bar" pairs into taskjvm.sh, which fails if the value has multiple words or contains a space. This is causing TestDebugScriptWithLinuxTas...
http://issues.apache.org/jira/browse/MAPREDUCE-2242    Author: Todd Lipcon, 2012-07-10, 21:27
[MAPREDUCE-2328] memory-related configurations missing from mapred-default.xml - MapReduce - [issue]
...HADOOP-5881 added new configuration parameters for memory-based scheduling, but they weren't added to mapred-default.xml...
http://issues.apache.org/jira/browse/MAPREDUCE-2328    Author: Todd Lipcon, 2012-07-09, 06:16
[MAPREDUCE-2251] Remove mapreduce.job.userhistorylocation config - MapReduce - [issue]
...Best I can tell, this config parameter is no longer used as of MAPREDUCE-157 but still exists in the code and in mapred-default.xml. We should remove it to avoid user confusion....
http://issues.apache.org/jira/browse/MAPREDUCE-2251    Author: Todd Lipcon, 2012-07-08, 16:18
[MAPREDUCE-4359] Potential deadlock in Counters - MapReduce - [issue]
...jcarder identified this deadlock in branch-1 (though it may also be present in trunk): Counters.size() is synchronized and locks Counters before Group Counters.Group.getCounterForName() is s...
http://issues.apache.org/jira/browse/MAPREDUCE-4359    Author: Todd Lipcon, 2012-07-05, 19:46
[MAPREDUCE-2377] task-controller fails to parse configuration if it doesn't end in \n - MapReduce - [issue]
...If the task-controller.cfg file doesn't end in a newline, it fails to parse properly....
http://issues.apache.org/jira/browse/MAPREDUCE-2377    Author: Todd Lipcon, 2012-06-07, 19:45
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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