[jira] [Created] (IMPALA-12241) TestInsertHdfsWriterLimit.test_mt_dop_writer_limit failed by unexpected num_instances_per_host

["Quanlong Huang (Jira)" <ji...@apache.org>]

Quanlong Huang created IMPALA-12241:
---------------------------------------

             Summary: TestInsertHdfsWriterLimit.test_mt_dop_writer_limit failed by unexpected num_instances_per_host
                 Key: IMPALA-12241
                 URL: https://issues.apache.org/jira/browse/IMPALA-12241
             Project: IMPALA
          Issue Type: Bug
            Reporter: Quanlong Huang


Saw TestInsertHdfsWriterLimit.test_mt_dop_writer_limit failed in an unrelated patch: [https://jenkins.impala.io/job/ubuntu-16.04-dockerised-tests/7562/]
{code:java}
query_test/test_insert.py:409: in test_mt_dop_writer_limit
    expected_num_instances_per_host=[8, 8, 9])
query_test/test_insert.py:491: in __run_insert_and_verify_instances
    assert num_instances_per_host == expected_num_instances_per_host, \
E   AssertionError: Query (id=0a47ff5df1b3e9c7:4631eb2100000000):
...
E   assert [7, 8, 10] == [8, 8, 9]
E     At index 0 diff: 7 != 8
E     Use -v to get the full diff {code}
The query is
{code}
SET client_identifier=query_test/test_insert.py::TestInsertHdfsWriterLimit::()::test_mt_dop_writer_limit[unique_database0];
SET max_fs_writers=2;
SET mt_dop=10;
-- 2023-06-23 09:10:57,585 INFO     MainThread: Getting metric: cluster-membership.backends.total from localhost:25000
-- 2023-06-23 09:10:57,605 INFO     MainThread: Metric 'cluster-membership.backends.total' has reached desired value: 3
-- executing against localhost:21000

create table test_mt_dop_writer_limit_f68565a8.test2 as select int_col from functional_parquet.alltypes limit 100000;

-- 2023-06-23 09:10:57,708 INFO     MainThread: Started query 0a47ff5df1b3e9c7:4631eb2100000000{code}



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