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https://issues.apache.org/jira/browse/CRUNCH-683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16823199#comment-16823199
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Jon Hemphill edited comment on CRUNCH-683 at 4/22/19 4:10 PM:
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FYI, I will be submitting a PR for this shortly. This is related to CRUNCH-658.
Although it doesn't skip the getSize check as suggested there, it does improve
the performance enough that the symptoms noticed there may be acceptable.
was (Author: jonhemphill):
FYI, I will be submitting a PR for this shortly.
> Avoid unnecessary listStatus calls from getSize computation
> -----------------------------------------------------------
>
> Key: CRUNCH-683
> URL: https://issues.apache.org/jira/browse/CRUNCH-683
> Project: Crunch
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.14.0
> Reporter: Jon Hemphill
> Assignee: Josh Wills
> Priority: Major
>
> The getPathSize computation in SourceTargetHelper currently makes unnecessary
> listStatus calls when recursing over a directory, which can cause performance
> issues when the filesystem is an object store such as S3. The performance can
> be improved with the addition of a private method to use for the getPathSize
> recursion that takes a known FIleStatus object as a parameter.
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