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Posted to dev@crunch.apache.org by "Jon Hemphill (JIRA)" <ji...@apache.org> on 2019/04/22 18:46:00 UTC

[jira] [Commented] (CRUNCH-658) Add a way to skip the getSize checks for Sources from object stores

    [ https://issues.apache.org/jira/browse/CRUNCH-658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16823339#comment-16823339 ] 

Jon Hemphill commented on CRUNCH-658:
-------------------------------------

I created CRUNCH-683 as a related issue that speeds up the getSize computation by an order of magnitude when the source is S3.

> Add a way to skip the getSize checks for Sources from object stores
> -------------------------------------------------------------------
>
>                 Key: CRUNCH-658
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-658
>             Project: Crunch
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.14.0
>            Reporter: Josh Wills
>            Assignee: Josh Wills
>            Priority: Major
>
> Ran into a problem when using Crunch to process a _lot_ of data from S3: the getSize checks can be very slow to run and don't materially add much to the overall processing of a pipeline when things like reducer counts are manually specified. I'd like to add a way to disable the file size checks, either globally or for specific input sources.



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