Tim Armstrong created IMPALA-9154:
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Summary: 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
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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