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https://issues.apache.org/jira/browse/LENS-356?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rajat Khandelwal updated LENS-356:
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Comment: was deleted
(was: Posting on a better forum:
http://stackoverflow.com/questions/28760103/if-i-have-to-do-n-operations-in-parallel-should-i-spawn-n-threads-or-n-1)
> Run estimate for each driver in parallel
> -----------------------------------------
>
> Key: LENS-356
> URL: https://issues.apache.org/jira/browse/LENS-356
> Project: Apache Lens
> Issue Type: Sub-task
> Components: server
> Reporter: Amareshwari Sriramadasu
> Assignee: Amareshwari Sriramadasu
> Fix For: 2.1
>
>
> We are estimating the cost of query on each driver sequentially. Since each
> estimate is independent those can be parallelized.
> For each driver rewrite the query, call driver.estimate - need to parallelize
> this for all drivers.
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