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[MAPREDUCE-5905] CountersStrings.toEscapedCompactStrings outputs unnecessary "null" strings - MapReduce - [issue]
...CountersStrings.toEscapedCompactStrings outputs "null" strings if a CounterGroup has more than one Counter.That way there are some "null" strings in MRv1(CDH) job history log.https://issues....
http://issues.apache.org/jira/browse/MAPREDUCE-5905    Author: Akira AJISAKA, 2015-05-03, 00:40
[MAPREDUCE-6003] Resource Estimator suggests huge map output in some cases - MapReduce - [issue]
...In some cases, ResourceEstimator can return way too large map output estimation. This happens when input size is not correctly calculated.A typical case is when joining two Hive tables (one ...
http://issues.apache.org/jira/browse/MAPREDUCE-6003    Author: Chengbing Liu, 2015-05-03, 00:32
[MAPREDUCE-1380] Adaptive Scheduler - MapReduce - [issue]
...The Adaptive Scheduler is a pluggable Hadoop scheduler that automatically adjusts the amount of used resources depending on the performance of jobs and on user-defined high-level business go...
http://issues.apache.org/jira/browse/MAPREDUCE-1380    Author: Jordà Polo, 2015-05-03, 00:32
[MAPREDUCE-5876] SequenceFileRecordReader NPE if close() is called before initialize() - MapReduce - [issue]
...org.apache.hadoop.mapreduce.lib.input.SequenceFileRecordReader extends org.apache.hadoop.mapreduce.RecordReader which in turn implements java.io.Closeable.According to java spec the java.io....
http://issues.apache.org/jira/browse/MAPREDUCE-5876    Author: Reinis Vicups, 2015-05-03, 00:31
[MAPREDUCE-5883] "Total megabyte-seconds" in job counters is slightly misleading - MapReduce - [issue]
...The following counters are in milliseconds so "megabyte-seconds" might be better stated as "megabyte-milliseconds"MB_MILLIS_MAPS.name=               Total ...
http://issues.apache.org/jira/browse/MAPREDUCE-5883    Author: Nathan Roberts, 2015-05-03, 00:23
[MAPREDUCE-5216] While using TextSplitter in DataDrivenDBInputformat, the lower limit (split start) always remains the same, for all splits. - MapReduce - [issue]
...While using TextSplitter in DataDrivenDBInputformat, the lower limit (split start) always remains the same, for all splits.ie, Split 1 Start =A, End = M, Split 2 Start =A, End = P, Split 3 S...
http://issues.apache.org/jira/browse/MAPREDUCE-5216    Author: Gelesh, 2015-05-02, 23:54
[MAPREDUCE-5649] Reduce cannot use more than 2G memory  for the final merge - MapReduce - [issue]
...In the org.apache.hadoop.mapreduce.task.reduce.MergeManagerImpl.java file, in the finalMerge method:  int maxInMemReduce = (int)Math.min(        Runtime.getRunt...
http://issues.apache.org/jira/browse/MAPREDUCE-5649    Author: stanley shi, 2015-05-02, 23:28
[MAPREDUCE-5264] FileAlreadyExistsException is assumed to be thrown by FileSystem#mkdirs or FileContext#mkdir in the codebase - MapReduce - [issue]
...According to https://issues.apache.org/jira/browse/HADOOP-9438,FileSystem#mkdirs and FileContext#mkdir do not throw FileAlreadyExistsException if the directory already exist.Some places in t...
http://issues.apache.org/jira/browse/MAPREDUCE-5264    Author: Rémy SAISSY, 2015-05-02, 22:45
[MAPREDUCE-5845] TestShuffleHandler failing intermittently on windows - MapReduce - [issue]
...TestShuffleHandler fails intermittently on Windows - specifically, testClientClosesConnection....
http://issues.apache.org/jira/browse/MAPREDUCE-5845    Author: Varun Vasudev, 2015-05-02, 22:32
[MAPREDUCE-5708] Duplicate String.format in getSpillFileForWrite - MapReduce - [issue]
...The code responsible for formatting the spill file name (namely getSpillFileForWrite) unnecessarily calls String.format twice. This does not only affect performance, but leads to the weird r...
http://issues.apache.org/jira/browse/MAPREDUCE-5708    Author: Konstantin Weitz, 2015-05-02, 21:56
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NEW: Monitor These Apps!
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