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https://issues.apache.org/jira/browse/IMPALA-9154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16979682#comment-16979682
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Michael Ho commented on IMPALA-9154:
------------------------------------
Given the fix is non-trivial, it may make sense to back out the offending
change for now.
> KRPC DataStreamService threads blocked in PublishFilter
> -------------------------------------------------------
>
> Key: IMPALA-9154
> URL: https://issues.apache.org/jira/browse/IMPALA-9154
> Project: IMPALA
> Issue Type: Bug
> Components: Distributed Exec
> Affects Versions: Impala 3.4.0
> Reporter: Tim Armstrong
> Assignee: Fang-Yu Rao
> Priority: Blocker
> Labels: hang
> Attachments: image-2019-11-13-08-30-27-178.png, pstack-exchange.txt
>
>
> I hit this on primitive_many_fragments when doing a single node perf run:
> {noformat}
> ./bin/single_node_perf_run.py --num_impalads=1 --scale=30 --ninja
> --workloads=targeted-perf --iterations=5
> {noformat}tan
> I noticed that the query was hung and the execution threads were hung sending
> row batches. Then looking at the RPCz page, all of the threads were busy:
> !image-2019-11-13-08-30-27-178.png!
> Multiple threads were stuck in UpdateFilter() - see [^pstack-exchange.txt].
> It looks like this is a deadlock bug because a KRPC thread is blocked waiting
> for an RPC that needs to be served by one of the limited threads from that
> same thread pool
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