Vinod Kumar Vavilapalli
Arun C Murthy
Robert Joseph Evans
Vinay Kumar Thota
Joydeep Sen Sarma
Bhallamudi Venkata Siva K...
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[MAPREDUCE-5111] RM address DNS lookup can cause unnecessary slowness on every JHS page load
...When I run the job history server locally, every page load takes in the 10s of seconds. I profiled the process and discovered that all the extra time was spent inside YarnConfiguration...
, 2013-04-03, 01:25
[MAPREDUCE-5120] Allow app master to use tracing async dispatcher
...YARN-366 proposes an option to add traces to events so that exceptions could report an events lineage. This JIRA would add a mapreduce config option that would allow the MR app master ...
, 2013-03-31, 06:49
[MAPREDUCE-5076] CombineFileInputFormat can create splits that exceed maxSplitSize
...I ran a local job with CombineFileInputFormat using an 80 MB file and a max split size of 32 MB (the default local FS block size). The job ran with two splits of 32 MB, and the last 16...
, 2013-03-18, 21:21
[MAPREDUCE-5073] TestJobStatusPersistency.testPersistency fails on JDK7
...TestJobStatusPersistency is sensitive to the order that the tests are run in. If testLocalPersistency runs before testPersistency, testPersistency will fail....
, 2013-03-15, 20:15
[MAPREDUCE-5072] TestDelegationTokenRenewal.testDTRenewal fails in MR1 on jdk7
...TestDelegationTokenRenewal.testDTRenewal fails in MR1 for the reasons that TestDelegationTokenRenewer.testDTRenewal fails described in YARN-31. The fix is the same....
, 2013-03-15, 17:50
[MAPREDUCE-5070] TestClusterStatus.testClusterMetrics fails on JDK7
...TestClusterStatus is sensitive to the order that the tests are run in. If testReservedSlots is called before testClusterMetrics, testClusterMetrics will fail....
, 2013-03-15, 17:50
[MAPREDUCE-5047] keep.failed.task.files=true causes job failure on secure clusters
...To support IsolationRunner, split info is written to local directories. This occurs inside MapTask#localizeConfiguration, which is called both tasktracker and by the child JVM. O...
, 2013-03-11, 21:04
[MAPREDUCE-5049] CombineFileInputFormat counts all compressed files non-splitable
...In branch-1, CombineFileInputFormat doesn't take SplittableCompressionCodec into account and thinks that all compressible input files aren't splittable. This is a regression from when ...
, 2013-03-07, 22:34
[MAPREDUCE-4896] "mapred queue -info" spits out ugly exception when queue does not exist
, 2013-03-01, 19:43
[MAPREDUCE-4659] Confusing output when running "hadoop version" from one hadoop installation when HADOOP_HOME points to another
...Hadoop version X is downloaded to ~/hadoop-x, and Hadoop version Y is downloaded to ~/hadoop-y. HADOOP_HOME is set to hadoop-x. A user running hadoop-y/bin/hadoop might expect to...
, 2013-03-01, 00:04
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