[jira] [Reopened] (MAPREDUCE-6697) Concurrent task limits should only be applied when necessary

[ https://issues.apache.org/jira/browse/MAPREDUCE-6697?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Nathan Roberts reopened MAPREDUCE-6697: --- Adding patch for 2.8/2.7 > Concurrent task limits should only be applied w

[jira] [Created] (MAPREDUCE-6631) shuffle handler would benefit from per-local-dir threads

Nathan Roberts created MAPREDUCE-6631: - Summary: shuffle handler would benefit from per-local-dir threads Key: MAPREDUCE-6631 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6631 Project

[jira] [Created] (MAPREDUCE-5846) Rumen doesn't understand JobQueueChangedEvent

Nathan Roberts created MAPREDUCE-5846: - Summary: Rumen doesn't understand JobQueueChangedEvent Key: MAPREDUCE-5846 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5846 Project: Hadoop Map

[jira] [Created] (MAPREDUCE-5569) FloatSplitter is not generating correct splits

Nathan Roberts created MAPREDUCE-5569: - Summary: FloatSplitter is not generating correct splits Key: MAPREDUCE-5569 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5569 Project: Hadoop Map

[jira] [Created] (MAPREDUCE-5308) Shuffling to memory can get out-of-sync when fetching multiple compressed map outputs

Nathan Roberts created MAPREDUCE-5308: - Summary: Shuffling to memory can get out-of-sync when fetching multiple compressed map outputs Key: MAPREDUCE-5308 URL: https://issues.apache.org/jira/browse/MAPREDUCE

[jira] [Created] (MAPREDUCE-4499) Looking for speculative tasks is very expensive in 1.x

Nathan Roberts created MAPREDUCE-4499: - Summary: Looking for speculative tasks is very expensive in 1.x Key: MAPREDUCE-4499 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4499 Project

[jira] [Created] (MAPREDUCE-4444) nodemanager fails to start when one of the local-dirs is bad

Nathan Roberts created MAPREDUCE-: - Summary: nodemanager fails to start when one of the local-dirs is bad Key: MAPREDUCE- URL: https://issues.apache.org/jira/browse/MAPREDUCE- Project

[jira] [Created] (MAPREDUCE-3895) Speculative execution algorithm in 1.0 is too pessimistic in many cases

Issue Type: Improvement Components: jobtracker, performance Affects Versions: 1.0.0 Reporter: Nathan Roberts We are seeing many instances where largish jobs are ending up with 30-50% of reduce tasks being speculatively re-executed. This can be a significant

[jira] [Created] (MAPREDUCE-3094) org.apache.hadoop.streaming.TestUlimit.testCommandLine fails intermittantly in 20.205.0

Project: Hadoop Map/Reduce Issue Type: Bug Components: contrib/streaming Affects Versions: 0.20.205.0 Reporter: Nathan Roberts 11/09/24 00:22:10 INFO mapred.TaskInProgress: Error from attempt_20110924002157563_0001_m_00_0: java.lang.RuntimeException

Re: Jiras need review

I sent this query to Suresh yesterday. He is supposed to be driving this from Hortonworks side, if this list doesn't look correct, let me know. project in (MAPREDUCE,HDFS,HADOOP) AND assignee in