[
https://issues.apache.org/jira/browse/IMPALA-7205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Dan Hecht updated IMPALA-7205:
------------------------------
Description:
Currently we respond with CANCELLED only when hitting EOS. It seems a bit more
robust to always respond with CANCELLED whenever query execution has
terminated. That way, if the cancel RPC from the coordinator to a backend
fails, the backend will still cancel if it can send status back to the
coordinator later on.
Without this fix, the query can hang and/or finstances can continue running
(until the query is closed, at which point the response to this RPC will be an
error).
was:Currently we respond with CANCELLED only when hitting EOS. It seems a bit
more robust to always respond with CANCELLED whenever query execution has
terminated. That way, if the cancel RPC from the coordinator to a backend
fails, the backend will still cancel if it can send status back to the
coordinator later on.
> Respond to ReportExecStatus() RPC with CANCELLED whenever query execution has
> terminated
> ----------------------------------------------------------------------------------------
>
> Key: IMPALA-7205
> URL: https://issues.apache.org/jira/browse/IMPALA-7205
> Project: IMPALA
> Issue Type: Sub-task
> Components: Distributed Exec
> Affects Versions: Impala 3.1.0
> Reporter: Dan Hecht
> Assignee: Dan Hecht
> Priority: Major
>
> Currently we respond with CANCELLED only when hitting EOS. It seems a bit
> more robust to always respond with CANCELLED whenever query execution has
> terminated. That way, if the cancel RPC from the coordinator to a backend
> fails, the backend will still cancel if it can send status back to the
> coordinator later on.
> Without this fix, the query can hang and/or finstances can continue running
> (until the query is closed, at which point the response to this RPC will be
> an error).
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org
For additional commands, e-mail: issues-all-h...@impala.apache.org
