[jira] [Resolved] (MAPREDUCE-7278) Speculative execution behavior is observed even when mapreduce.map.speculative and mapreduce.reduce.speculative are false

closing, thank you [~tarunparimi] for your contribution > Speculative execution behavior is observed even when > mapreduce.map.speculative and mapreduce.reduce.speculative are

[jira] [Created] (MAPREDUCE-7278) Speculative execution behavior is observed even when mapreduce.map.speculative and mapreduce.reduce.speculative are false

Tarun Parimi created MAPREDUCE-7278: --- Summary: Speculative execution behavior is observed even when mapreduce.map.speculative and mapreduce.reduce.speculative are false Key: MAPREDUCE-7278 URL: https

[jira] [Created] (MAPREDUCE-7177) Disable speculative execution in TestDFSIO

Kihwal Lee created MAPREDUCE-7177: - Summary: Disable speculative execution in TestDFSIO Key: MAPREDUCE-7177 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7177 Project: Hadoop Map/Reduce

[jira] [Created] (MAPREDUCE-7144) Speculative execution can cause race condition

Peter Bacsko created MAPREDUCE-7144: --- Summary: Speculative execution can cause race condition Key: MAPREDUCE-7144 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7144 Project: Hadoop Map/Reduce

[jira] [Resolved] (MAPREDUCE-3294) Log the reason for killing a task during speculative execution

g a task during speculative execution > -- > > Key: MAPREDUCE-3294 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-3294 > Project: Hadoop Map/Reduce > Is

[jira] [Created] (MAPREDUCE-6143) add configuration for mapreduce speculative execution in MR2

zhihai xu created MAPREDUCE-6143: Summary: add configuration for mapreduce speculative execution in MR2 Key: MAPREDUCE-6143 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6143 Project: Hadoop

[jira] [Resolved] (MAPREDUCE-2062) speculative execution is too aggressive under certain conditions

[ https://issues.apache.org/jira/browse/MAPREDUCE-2062?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Allen Wittenauer resolved MAPREDUCE-2062. - Resolution: Fixed Spec exec got majorly overhauled. Closing. > speculat

[jira] [Resolved] (MAPREDUCE-2039) Improve speculative execution

. > Improve speculative execution > - > > Key: MAPREDUCE-2039 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-2039 > Project: Hadoop Map/Reduce > Issue Type: Improvement >

[jira] [Created] (MAPREDUCE-5692) Add explicit diagnostics when a task attempt is killed due to speculative execution

Gera Shegalov created MAPREDUCE-5692: Summary: Add explicit diagnostics when a task attempt is killed due to speculative execution Key: MAPREDUCE-5692 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5692

[jira] [Created] (MAPREDUCE-5533) Speculative execution does not function for reduce

Tassapol Athiapinya created MAPREDUCE-5533: -- Summary: Speculative execution does not function for reduce Key: MAPREDUCE-5533 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5533 Project

Re: Speculative Execution...

Under YARN (branch-2, branch-0.23, and trunk) the speculative execution decision is pluggable, and can be replaced by a user. If you could come up with a better solution to speculative execution that would be great. We have known for a while that it is not very good (most of the time we run a

Fwd: Speculative Execution...

Hello Sir/Madam I am doing PhD. I am interested to do research in Hadoop for publishing paper. I know little bit about speculative execution of slow tasks. I know it is possible to enable or disable speculative execution. But, Is there any idea published already for dynamically enable

[jira] [Resolved] (MAPREDUCE-94) Speculative execution does not work properly

Reporter: Runping Qi > > One mapper of my job stuck when it reached 87.7%. > Speculative execution was set to true. > But no speculative execution was fired for that task. > The whole job was stalled. -- This message is automatically generated by JIRA. If you think it was sen

[jira] [Resolved] (MAPREDUCE-92) Reduce task stuck at 95.71% for a long time and the speculative execution does not kick in

ask stuck at 95.71% for a long time and the speculative execution > does not kick in > -- > > Key: MAPREDUCE-92 > URL: https://issues.apache.org/jira/b

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

Speculative execution algorithm in 1.0 is too pessimistic in many cases --- Key: MAPREDUCE-3895 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3895 Project: Hadoop Map/Reduce

[jira] [Created] (MAPREDUCE-3404) Speculative Execution: speculative map tasks launched even if -Dmapreduce.job.maps.speculative.execution=false

Speculative Execution: speculative map tasks launched even if -Dmapreduce.job.maps.speculative.execution=false -- Key: MAPREDUCE-3404 URL: https

[jira] [Created] (MAPREDUCE-3403) Speculative Execution: enabling multiple reduce tasks inhibit spec exec launch of mappers

Speculative Execution: enabling multiple reduce tasks inhibit spec exec launch of mappers -- Key: MAPREDUCE-3403 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3403

[jira] [Created] (MAPREDUCE-3294) Log the reason for killing a task during speculative execution

Log the reason for killing a task during speculative execution -- Key: MAPREDUCE-3294 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3294 Project: Hadoop Map/Reduce Issue

[jira] Created: (MAPREDUCE-2162) speculative execution does not handle cases where stddev > mean well

speculative execution does not handle cases where stddev > mean well Key: MAPREDUCE-2162 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2162 Project: Hadoop Map/Red

[jira] Created: (MAPREDUCE-2062) speculative execution is too aggressive under certain conditions

speculative execution is too aggressive under certain conditions Key: MAPREDUCE-2062 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2062 Project: Hadoop Map/Reduce Issue

[jira] Created: (MAPREDUCE-2039) Improve speculative execution

Improve speculative execution - Key: MAPREDUCE-2039 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2039 Project: Hadoop Map/Reduce Issue Type: Improvement Reporter: Dick King

[jira] Created: (MAPREDUCE-1608) Allow users to do speculative execution of a task manually

Allow users to do speculative execution of a task manually -- Key: MAPREDUCE-1608 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1608 Project: Hadoop Map/Reduce Issue Type: New

[jira] Created: (MAPREDUCE-1469) Sqoop should disable speculative execution in export

Sqoop should disable speculative execution in export Key: MAPREDUCE-1469 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1469 Project: Hadoop Map/Reduce Issue Type: Bug

[jira] Resolved: (MAPREDUCE-513) Prior code fix in Capacity Scheduler prevents speculative execution in jobs

-5869 > Prior code fix in Capacity Scheduler prevents speculative execution in jobs > --- > > Key: MAPREDUCE-513 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-513 >

[jira] Created: (MAPREDUCE-718) Support for per-phase speculative execution

Support for per-phase speculative execution --- Key: MAPREDUCE-718 URL: https://issues.apache.org/jira/browse/MAPREDUCE-718 Project: Hadoop Map/Reduce Issue Type: Improvement Components

[jira] Created: (MAPREDUCE-717) Fix some corner case issues in speculative execution (post hadoop-2141)

Fix some corner case issues in speculative execution (post hadoop-2141) --- Key: MAPREDUCE-717 URL: https://issues.apache.org/jira/browse/MAPREDUCE-717 Project: Hadoop Map/Reduce