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https://issues.apache.org/jira/browse/CASSANDRA-19145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ekaterina Dimitrova updated CASSANDRA-19145:
--------------------------------------------
Bug Category: Parent values: Correctness(12982)Level 1 values: Test
Failure(12990)
Complexity: Normal
Discovered By: User Report
Severity: Normal
Status: Open (was: Triage Needed)
> Python dtest TestWriteFailures.test_paxos is failing with Paxos V2
> ------------------------------------------------------------------
>
> Key: CASSANDRA-19145
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19145
> Project: Cassandra
> Issue Type: Bug
> Components: Feature/Lightweight Transactions
> Reporter: Branimir Lambov
> Priority: Normal
>
> With configuration changed to engage Paxos V2 with repaired state purging,
> the dtest fails with:
> {code}
> test_paxos
> write_failures_test.TestWriteFailures
> self = <write_failures_test.TestWriteFailures object at 0x7f396bb68910>
> def test_paxos(self):
> """
> A light transaction receives a WriteFailure
> """
> > exc = self._perform_cql_statement("INSERT INTO mytable (key, value)
> > VALUES ('key1', 'Value 1') IF NOT EXISTS")
> write_failures_test.py:202:
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _
> write_failures_test.py:88: in _perform_cql_statement
> session.execute(statement)
> ../env3.7/src/cassandra-driver/cassandra/cluster.py:2618: in execute
> return self.execute_async(query, parameters, trace, custom_payload,
> timeout, execution_profile, paging_state, host, execute_as).result()
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _
> self = <ResponseFuture: query='<BoundStatement query="INSERT INTO mytable
> (key, value) VALUES ('key1', 'Value 1') IF NOT EXIS...ncy': 'SERIAL',
> 'required_responses': 2, 'received_responses': 1, 'write_type': 'CAS'}
> coordinator_host=127.0.0.1:9042>
> def result(self):
> """
> Return the final result or raise an Exception if errors were
> encountered. If the final result or error has not been set
> yet, this method will block until it is set, or the timeout
> set for the request expires.
>
> Timeout is specified in the Session request execution functions.
> If the timeout is exceeded, an :exc:`cassandra.OperationTimedOut`
> will be raised.
> This is a client-side timeout. For more information
> about server-side coordinator timeouts, see
> :class:`.policies.RetryPolicy`.
>
> Example usage::
>
> >>> future = session.execute_async("SELECT * FROM mycf")
> >>> # do other stuff...
>
> >>> try:
> ... rows = future.result()
> ... for row in rows:
> ... ... # process results
> ... except Exception:
> ... log.exception("Operation failed:")
>
> """
> self._event.wait()
> if self._final_result is not _NOT_SET:
> return ResultSet(self, self._final_result)
> else:
> > raise self._final_exception
> E cassandra.WriteTimeout: Error from server: code=1100 [Coordinator
> node timed out waiting for replica nodes' responses] message="CAS operation
> timed out: received 1 of 2 required responses after 0 contention retries"
> info={'consistency': 'SERIAL', 'required_responses': 2, 'received_responses':
> 1, 'write_type': 'CAS'}
> ../env3.7/src/cassandra-driver/cassandra/cluster.py:4894: WriteTimeout
> {code}
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