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https://issues.apache.org/jira/browse/CASSANDRA-18947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Lerer updated CASSANDRA-18947:
---------------------------------------
Fix Version/s: 5.0-rc
(was: 5.0.x)
> Test failure:
> dtest-novnode.disk_balance_test.TestDiskBalance.test_disk_balance_stress
> --------------------------------------------------------------------------------------
>
> Key: CASSANDRA-18947
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18947
> Project: Cassandra
> Issue Type: Bug
> Components: Test/dtest/python
> Reporter: Ekaterina Dimitrova
> Priority: Normal
> Fix For: 5.0-rc
>
>
> Seen here:
> https://ci-cassandra.apache.org/job/Cassandra-5.0/72/testReport/dtest-novnode.disk_balance_test/TestDiskBalance/test_disk_balance_stress/
> h3.
> {code:java}
> Error Message
> AssertionError: values not within 10.00% of the max: (2534183, 2762123,
> 2423706) (node1)
> Stacktrace
> self = <disk_balance_test.TestDiskBalance object at 0x7f8fae9b7590> def
> test_disk_balance_stress(self): cluster = self.cluster if
> self.dtest_config.use_vnodes:
> cluster.set_configuration_options(values={'num_tokens': 256})
> cluster.populate(4).start() node1 = cluster.nodes['node1']
> node1.stress(['write', 'n=50k', 'no-warmup', '-rate', 'threads=100',
> '-schema', 'replication(factor=3)',
> 'compaction(strategy=SizeTieredCompactionStrategy,enabled=false)'])
> cluster.flush() # make sure the data directories are balanced: for node in
> cluster.nodelist(): > self.assert_balanced(node) disk_balance_test.py:48: _ _
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> disk_balance_test.py:186: in assert_balanced assert_almost_equal(*new_sums,
> error=0.1, error_message=node.name) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ args = (2534183, 2762123, 2423706)
> kwargs = {'error': 0.1, 'error_message': 'node1'}, error = 0.1, vmax =
> 2762123 vmin = 2423706, error_message = 'node1' def
> assert_almost_equal(*args, **kwargs): """ Assert variable number of arguments
> all fall within a margin of error. @params *args variable number of numerical
> arguments to check @params error Optional margin of error. Default 0.16
> @params error_message Optional error message to print. Default '' Examples:
> assert_almost_equal(sizes[2], init_size) assert_almost_equal(ttl_session1,
> ttl_session2[0][0], error=0.005) """ error = kwargs['error'] if 'error' in
> kwargs else 0.16 vmax = max(args) vmin = min(args) error_message = '' if
> 'error_message' not in kwargs else kwargs['error_message'] assert vmin > vmax
> * (1.0 - error) or vmin == vmax, \ > "values not within {:.2f}% of the max:
> {} ({})".format(error * 100, args, error_message) E AssertionError: values
> not within 10.00% of the max: (2534183, 2762123, 2423706) (node1)
> tools/assertions.py:206: AssertionError
> {code}
>
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