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https://issues.apache.org/jira/browse/IMPALA-11775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17644013#comment-17644013
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Wenzhe Zhou commented on IMPALA-11775:
--------------------------------------
The test add a new column "b" to Kudu table, and verify that changes in Kudu
schema should be immediately visible to Impala with Catalog V2. But the test
failure show that Impala returned an error "Invalid argument: Some columns are
not present in the current schema: b", which indicates the schema change was
NOT immediately visible to Impala.
Repeatedly ran query_test/test_kudu.py::TestKuduOperations::test_kudu_col_added
for 1000 times in impala-private-parameterized, but could not reproduce the
issue.
This seems an intermittent failure. Not sure the root cause.
> TestKuduOperations.test_kudu_col_added is flaky
> -----------------------------------------------
>
> Key: IMPALA-11775
> URL: https://issues.apache.org/jira/browse/IMPALA-11775
> Project: IMPALA
> Issue Type: Bug
> Reporter: Quanlong Huang
> Priority: Major
>
> TestKuduOperations.test_kudu_col_added failed in an unrelated patch:
> https://gerrit.cloudera.org/c/19252
> https://jenkins.impala.io/job/ubuntu-16.04-dockerised-tests/6714
> {code:python}
> query_test/test_kudu.py:362: in test_kudu_col_added
> assert cursor.fetchall() == [(0, 0)]
> ../infra/python/env-gcc10.4.0/lib/python2.7/site-packages/impala/hiveserver2.py:553:
> in fetchall
> elements = self._pop_from_buffer(self.buffersize)
> ../infra/python/env-gcc10.4.0/lib/python2.7/site-packages/impala/hiveserver2.py:619:
> in _pop_from_buffer
> self._ensure_buffer_is_filled()
> ../infra/python/env-gcc10.4.0/lib/python2.7/site-packages/impala/hiveserver2.py:607:
> in _ensure_buffer_is_filled
> convert_types=self.convert_types)
> ../infra/python/env-gcc10.4.0/lib/python2.7/site-packages/impala/hiveserver2.py:1395:
> in fetch
> resp = self._rpc('FetchResults', req, False)
> ../infra/python/env-gcc10.4.0/lib/python2.7/site-packages/impala/hiveserver2.py:1083:
> in _rpc
> err_if_rpc_not_ok(response)
> ../infra/python/env-gcc10.4.0/lib/python2.7/site-packages/impala/hiveserver2.py:780:
> in err_if_rpc_not_ok
> raise HiveServer2Error(resp.status.errorMessage)
> E HiveServer2Error: Unable to open scanner for node with id '0' for Kudu
> table 'impala::test_kudu_col_added_bdea357e.foo': Invalid argument: Some
> columns are not present in the current schema: b
> {code}
> Stderr:
> {noformat}
> -- 2022-12-02 11:14:28,720 INFO MainThread: Using database
> testkuduoperations_21164_ph6g3t as default
> SET
> client_identifier=query_test/test_kudu.py::TestKuduOperations::()::test_kudu_col_added;
> SET sync_ddl=False;
> -- executing against localhost:21000
> DROP DATABASE IF EXISTS `test_kudu_col_added_bdea357e` CASCADE;
> -- 2022-12-02 11:14:28,747 INFO MainThread: Started query
> 9244351c1fdff324:5e9bb1ae00000000
> SET
> client_identifier=query_test/test_kudu.py::TestKuduOperations::()::test_kudu_col_added;
> SET sync_ddl=False;
> -- executing against localhost:21000
> CREATE DATABASE `test_kudu_col_added_bdea357e`;
> -- 2022-12-02 11:14:33,156 INFO MainThread: Started query
> d24b33521f665898:c6a42d6900000000
> -- 2022-12-02 11:14:33,209 INFO MainThread: Created database
> "test_kudu_col_added_bdea357e" for test ID
> "query_test/test_kudu.py::TestKuduOperations::()::test_kudu_col_added"
> {noformat}
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