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https://issues.apache.org/jira/browse/CASSANDRA-15012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stefan Podkowinski updated CASSANDRA-15012:
-------------------------------------------
Status: In Progress (was: Ready to Commit)
> token_generator_test.TestTokenGenerator test fails on 2.2
> ---------------------------------------------------------
>
> Key: CASSANDRA-15012
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15012
> Project: Cassandra
> Issue Type: Improvement
> Components: Test/dtest
> Reporter: Joseph Lynch
> Assignee: Joseph Lynch
> Priority: Minor
> Labels: beginner, dtest, test
> Fix For: 2.2.x
>
> Attachments: --graph output.png, test-output.png
>
>
> While running tests for the 2.2.14 candidate I noticed that the
> {{TestTokenGenerator}} dtests are broken. I reproduced locally as well, the
> issue appears to be that we're running a python2 script with python3 (since
> dtests run python3 now).
> Should be a quick fix to make the token generator script py2/3 compatible.
> Example local run:
> {noformat}
> pytest --cassandra-dir=/home/josephl/pg/cassandra_2 -k TestTokenGenerator
>
> 1 ↵
> ===============================================================================================================
> test session starts
> ================================================================================================================
> platform linux -- Python 3.6.7, pytest-3.6.4, py-1.7.0, pluggy-0.7.1
> rootdir: /home/josephl/pg/cassandra-dtest, inifile: pytest.ini
> plugins: timeout-1.3.3, flaky-3.4.0
> timeout: 900.0s
> timeout method: signal
> timeout func_only: False
> collected 1028 items / 1025 deselected
>
>
>
> token_generator_test.py FFF
>
>
> [100%]
> =====================================================================================================================
> FAILURES
> =====================================================================================================================
> _________________________________________________________________________________________________
> TestTokenGenerator.test_multi_dc_tokens_default
> __________________________________________________________________________________________________
> self = <token_generator_test.TestTokenGenerator object at 0x7f5188c7cdd8>
> def test_multi_dc_tokens_default(self):
> > self._multi_dc_tokens()
> token_generator_test.py:167:
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _ _ _ _ _
> token_generator_test.py:153: in _multi_dc_tokens
> generated_tokens =
> self.call_token_generator(self.cluster.get_install_dir(), random, dc_nodes)
> token_generator_test.py:43: in call_token_generator
> token_gen_output = subprocess.check_output(args)
> /usr/lib/python3.6/subprocess.py:336: in check_output
> **kwargs).stdout
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _ _ _ _ _
> input = None, timeout = None, check = True, popenargs =
> (['/home/josephl/pg/cassandra_2/tools/bin/token-generator', '3', '5'],),
> kwargs = {'stdout': -1}, process = <subprocess.Popen object at
> 0x7f5188b80208>, stdout = b'', stderr = None
> retcode = 1
> def run(*popenargs, input=None, timeout=None, check=False, **kwargs):
> """Run command with arguments and return a CompletedProcess instance.
>
> The returned instance will have attributes args, returncode, stdout
> and
> stderr. By default, stdout and stderr are not captured, and those
> attributes
> will be None. Pass stdout=PIPE and/or stderr=PIPE in order to capture
> them.
>
> If check is True and the exit code was non-zero, it raises a
> CalledProcessError. The CalledProcessError object will have the
> return code
> in the returncode attribute, and output & stderr attributes if those
> streams
> were captured.
>
> If timeout is given, and the process takes too long, a TimeoutExpired
> exception will be raised.
>
> There is an optional argument "input", allowing you to
> pass a string to the subprocess's stdin. If you use this argument
> you may not also use the Popen constructor's "stdin" argument, as
> it will be used internally.
>
> The other arguments are the same as for the Popen constructor.
>
> If universal_newlines=True is passed, the "input" argument must be a
> string and stdout/stderr in the returned object will be strings
> rather than
> bytes.
> """
> if input is not None:
> if 'stdin' in kwargs:
> raise ValueError('stdin and input arguments may not both be
> used.')
> kwargs['stdin'] = PIPE
>
> with Popen(*popenargs, **kwargs) as process:
> try:
> stdout, stderr = process.communicate(input, timeout=timeout)
> except TimeoutExpired:
> process.kill()
> stdout, stderr = process.communicate()
> raise TimeoutExpired(process.args, timeout, output=stdout,
> stderr=stderr)
> except:
> process.kill()
> process.wait()
> raise
> retcode = process.poll()
> if check and retcode:
> raise CalledProcessError(retcode, process.args,
> > output=stdout, stderr=stderr)
> E subprocess.CalledProcessError: Command
> '['/home/josephl/pg/cassandra_2/tools/bin/token-generator', '3', '5']'
> returned non-zero exit status 1.
> /usr/lib/python3.6/subprocess.py:418: CalledProcessError
> --------------------------------------------------------------------------------------------------------------
> Captured stdout setup
> ---------------------------------------------------------------------------------------------------------------
> 10:03:31,457 ccm DEBUG Log-watching thread starting.
> ----------------------------------------------------------------------------------------------------------------
> Captured log setup
> ----------------------------------------------------------------------------------------------------------------
> 10:03:31,425 conftest INFO Starting execution of test_multi_dc_tokens_default
> at 2019-02-05 10:03:31.425612
> 10:03:31,426 dtest_setup INFO cluster ccm directory: /tmp/dtest-89rd87ne
> ---------------------------------------------------------------------------------------------------------------
> Captured stderr call
> ---------------------------------------------------------------------------------------------------------------
> File "/home/josephl/pg/cassandra_2/tools/bin/token-generator", line 160
> print "%sDC #%d:" % (indentstr, dcnum + 1)
> ^
> SyntaxError: invalid syntax
> -------------------------------------------------------------------------------------------------------------
> Captured stdout teardown
> -------------------------------------------------------------------------------------------------------------
> 10:03:31,708 ccm DEBUG Log-watching thread exiting.
> ...
> ...
> ...
> {noformat}
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