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Posted to mapreduce-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2015/01/21 04:13:36 UTC
[jira] [Commented] (MAPREDUCE-6143) add configuration for
mapreduce speculative execution in MR2
[ https://issues.apache.org/jira/browse/MAPREDUCE-6143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14285087#comment-14285087 ]
Hadoop QA commented on MAPREDUCE-6143:
--------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12693474/MAPREDUCE-6143.000.patch
against trunk revision fc20129.
{color:green}+1 @author{color}. The patch does not contain any @author tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse.
{color:red}-1 findbugs{color}. The patch appears to introduce 13 new Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core.
Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5114//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5114//artifact/patchprocess/newPatchFindbugsWarningshadoop-mapreduce-client-core.html
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5114//console
This message is automatically generated.
> add configuration for mapreduce speculative execution in MR2
> -------------------------------------------------------------
>
> Key: MAPREDUCE-6143
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6143
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv2
> Affects Versions: 2.5.1
> Reporter: zhihai xu
> Assignee: zhihai xu
> Attachments: MAPREDUCE-6143.000.patch
>
>
> add configuration for mapreduce speculative execution in MR2.
> Currently mapreduce.job.speculative.speculativecap and mapreduce.job.speculative.slownodethreshold are not used for MR2 mapreduce speculative execution any more.
> We should make the following hardcode constants in DefaultSpeculator configurable for MR2 Map Reduce speculative execution:
> private static final long SOONEST_RETRY_AFTER_NO_SPECULATE = 1000L * 1L;
> private static final long SOONEST_RETRY_AFTER_SPECULATE = 1000L * 15L;
> private static final double PROPORTION_RUNNING_TASKS_SPECULATABLE = 0.1;
> private static final double PROPORTION_TOTAL_TASKS_SPECULATABLE = 0.01;
> private static final int MINIMUM_ALLOWED_SPECULATIVE_TASKS = 10;
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