[jira] [Created] (IMPALA-9154) KRPC DataStreamService threads blocked in PublishFilter

["Tim Armstrong (Jira)" <ji...@apache.org>]

Tim Armstrong created IMPALA-9154:
-------------------------------------

             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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