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https://issues.apache.org/jira/browse/IMPALA-8059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16737763#comment-16737763
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Sahil Takiar commented on IMPALA-8059:
--------------------------------------
Some more info from the Jenkins job where this test failed:
{code}
=================================== FAILURES ===================================
_______________________ TestWebPage.test_backend_states ________________________
webserver/test_web_pages.py:321: in test_backend_states
expected_state=running_state)
webserver/test_web_pages.py:297: in __run_query_and_get_debug_page
self.wait_for_state(query_handle, expected_state, 100)
common/impala_test_suite.py:841: in wait_for_state
% (handle.get_handle().id, expected_state, actual_state))
E Timeout: query 'a94c0fc5da9a0f80:f74ed94200000000' did not reach expected
state '3', last known state '4'
---------------------------- Captured stderr setup -----------------------------
SET sync_ddl=False;
-- executing against localhost:21000
DROP DATABASE IF EXISTS `test_backend_states_22f4a3e6` CASCADE;
-- 2019-01-07 23:30:21,788 INFO MainThread: Started query
2f402bda419c7cc4:25a4492700000000
SET sync_ddl=False;
-- executing against localhost:21000
CREATE DATABASE `test_backend_states_22f4a3e6`;
-- 2019-01-07 23:30:22,619 INFO MainThread: Started query
444d7423b372c442:10c3af7800000000
-- 2019-01-07 23:30:22,621 INFO MainThread: Created database
"test_backend_states_22f4a3e6" for test ID
"webserver/test_web_pages.py::TestWebPage::()::test_backend_states"
----------------------------- Captured stderr call -----------------------------
-- executing async: localhost:21000
select sleep(10000) from functional.alltypes limit 1;
-- 2019-01-07 23:30:22,626 INFO MainThread: Started query
a94c0fc5da9a0f80:f74ed94200000000
getting state for operation: <tests.common.impala_connection.OperationHandle
object at 0xc87d250>
{code}
As stated in the description, the query {{select sleep(10000) from
functional.alltypes limit 1}} reached state FINISHED before the method
{{__run_query_and_get_debug_page}} was able to check that it was in the RUNNING
state. The intention of the test was for it run for at least 10 seconds so that
the Python test could query the backend URL while the query was running.
> TestWebPage::test_backend_states is flaky
> -----------------------------------------
>
> Key: IMPALA-8059
> URL: https://issues.apache.org/jira/browse/IMPALA-8059
> Project: IMPALA
> Issue Type: Bug
> Reporter: Pooja Nilangekar
> Assignee: Sahil Takiar
> Priority: Blocker
> Labels: broken-build, flaky-test
>
> test_backend_states is flaky. The query reaches the _"FINISHED"_ state before
> it's state is verified by the python test. Here are the relevant log:
> {code:java}
> 07:33:45 ----------------------------- Captured stderr call
> -----------------------------
> 07:33:45 -- executing async: localhost:21000
> 07:33:45 select sleep(10000) from functional.alltypes limit 1;
> 07:33:45
> 07:33:45 -- 2019-01-08 07:31:57,952 INFO MainThread: Started query
> 7f46f15ed4d6d0f6:4d58cdbc00000000
> 07:33:45 -- getting state for operation:
> <tests.common.impala_connection.OperationHandle object at 0x5b3db90>
> {code}
> This bug was introduced by IMPALA-7625.
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