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https://issues.apache.org/jira/browse/TEZ-3952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16509731#comment-16509731
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Nishant Dash commented on TEZ-3952:
-----------------------------------
Updated patch has been posted, which corrects some naming issues and modifies
current test cases to test for the added functionality mentioned in this jira.
The core tests that fail are due to HADOOP-15450.
> Allow Tez task speculation to allow for greater customization
> -------------------------------------------------------------
>
> Key: TEZ-3952
> URL: https://issues.apache.org/jira/browse/TEZ-3952
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Nishant Dash
> Assignee: Nishant Dash
> Priority: Major
> Attachments: TEZ-3952.001.patch, TEZ-3952.002.patch
>
>
> Many of the settings for Tez task speculation are hardcoded and should
> instead be configurable. For example, there's no equivalent config settings
> for the following MapReduce settings:
> - mapreduce.job.speculative.speculative-cap-running-tasks
> - mapreduce.job.speculative.retry-after-no-speculate
> - mapreduce.job.speculative.retry-after-speculate
> - mapreduce.job.speculative.minimum-allowed-tasks
> - mapreduce.job.speculative.speculative-cap-total-tasks
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