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Posted to issues@impala.apache.org by "Lars Volker (JIRA)" <ji...@apache.org> on 2019/03/14 18:14:00 UTC
[jira] [Resolved] (IMPALA-8302) Data stream senders should buffer
limited amount of data when receivers block
[ https://issues.apache.org/jira/browse/IMPALA-8302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lars Volker resolved IMPALA-8302.
---------------------------------
Resolution: Fixed
> Data stream senders should buffer limited amount of data when receivers block
> -----------------------------------------------------------------------------
>
> Key: IMPALA-8302
> URL: https://issues.apache.org/jira/browse/IMPALA-8302
> Project: IMPALA
> Issue Type: Bug
> Components: Backend, Distributed Exec
> Affects Versions: Impala 3.2.0
> Reporter: Lars Volker
> Priority: Major
>
> Exchanges into blocking nodes (e.g. sort nodes during run formation) can block the whole execution if a single node blocks. Data stream senders should buffer a limited amount of data to allow more sort nodes to start sorting their data. Possible options would be a fixed amount of buffer size, or a size relative to the sort node run size.
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