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https://issues.apache.org/jira/browse/IMPALA-1760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16622481#comment-16622481
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Tim Armstrong commented on IMPALA-1760:
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I created a subtask for one failure. The other failure was on S3 in
test_shutdown_executor, where it appears that because of the S3 synthetic block
thing, the files of lineitem were carved into 32MB chunks and some executors
didn't actually get any midpoints of parquet row groups, so didn't have any
work to do and finished earlier.
> Add decommissioning support / graceful shutdown / quiesce
> ---------------------------------------------------------
>
> Key: IMPALA-1760
> URL: https://issues.apache.org/jira/browse/IMPALA-1760
> Project: IMPALA
> Issue Type: New Feature
> Components: Distributed Exec
> Affects Versions: Impala 2.1.1
> Reporter: Henry Robinson
> Assignee: Tim Armstrong
> Priority: Critical
> Labels: resource-management, scalability, scheduler, usability
>
> In larger clusters, node maintenance is a frequent occurrence. There's no way
> currently to stop an Impala node without failing running queries, without
> draining queries across the whole cluster first. We should fix that.
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