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https://issues.apache.org/jira/browse/HADOOP-18410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran resolved HADOOP-18410.
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Fix Version/s: 3.4.0
3.3.9
Resolution: Fixed
> S3AInputStream.unbuffer() async drain not releasing http connections
> --------------------------------------------------------------------
>
> Key: HADOOP-18410
> URL: https://issues.apache.org/jira/browse/HADOOP-18410
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.3.9
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 3.4.0, 3.3.9
>
>
> Impala tcp-ds setup to s3 is hitting problems with timeout fetching http
> connections from the s3a fs pool. Disabling s3a async drain makes this
> problem *go away*. assumption, either those async ops are blocking, or they
> are not releasing references properly.
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