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https://issues.apache.org/jira/browse/IMPALA-11187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17519474#comment-17519474
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Tamas Mate commented on IMPALA-11187:
-------------------------------------
I have reviewed this flaky:
{code:python}
"""Other Kudu tests are run with a scan level of READ_AT_SNAPSHOT to have
predicable scan results. This test verifies that scans work as expected at the
scan level of READ_LATEST by retrying the scan if the results are incorrect."""
{code}
I have tried to reproduce the issue locally with larger inserts, but the tests
succeeded. To understand why didn't the result matched the expected values even
after 10s we should review the Kudu logs. In case the issue would reoccur,
please extract and attach the Kudu logs for analysis.
> TestKuduOperations.test_read_modes fails
> ----------------------------------------
>
> Key: IMPALA-11187
> URL: https://issues.apache.org/jira/browse/IMPALA-11187
> Project: IMPALA
> Issue Type: Bug
> Reporter: Daniel Becker
> Assignee: Tamas Mate
> Priority: Blocker
> Labels: broken-build
>
> In an internal build,
> *query_test.test_kudu.TestKuduOperations.test_read_modes* fails:
> h3. Error Message
> {code:java}
> query_test/test_kudu.py:551: in test_read_modes self._retry_query(cursor,
> "select count(*) from %s" % table_name, [(103,)])
> query_test/test_kudu.py:535: in _retry_query assert retries < 3, \ E
> AssertionError: Did not get a correct result for select count(*) from
> test_read_modes_53f93f33.test_read_latest after 3 retries: [(97,)] E assert 3
> < 3{code}
> h3. Stacktrace
> {code:java}
> query_test/test_kudu.py:551: in test_read_modes self._retry_query(cursor,
> "select count(*) from %s" % table_name, [(103,)])
> query_test/test_kudu.py:535: in _retry_query
> assert retries < 3, \
> E AssertionError: Did not get a correct result for select count(*) from
> test_read_modes_53f93f33.test_read_latest after 3 retries: [(97,)]
> E assert 3 < 3{code}
> h3. Standard Error
> {code:java}
> -- 2022-03-16 01:02:23,338 INFO MainThread: Using database
> testkuduoperations_1677_vu0h74 as default
> SET
> client_identifier=query_test/test_kudu.py::TestKuduOperations::()::test_read_modes;
> SET sync_ddl=False;
> -- executing against localhost:21000
> DROP DATABASE IF EXISTS `test_read_modes_53f93f33` CASCADE;
> -- 2022-03-16 01:02:23,342 INFO MainThread: Started query
> 2e4741a082f8195b:c8427d1b00000000
> SET
> client_identifier=query_test/test_kudu.py::TestKuduOperations::()::test_read_modes;
> SET sync_ddl=False;
> -- executing against localhost:21000
> CREATE DATABASE `test_read_modes_53f93f33`;
> -- 2022-03-16 01:02:28,252 INFO MainThread: Started query
> c547f10a0d52e296:62a357c600000000
> -- 2022-03-16 01:02:28,305 INFO MainThread: Created database
> "test_read_modes_53f93f33" for test ID
> "query_test/test_kudu.py::TestKuduOperations::()::test_read_modes"{code}
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