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https://issues.apache.org/jira/browse/CASSANDRA-6663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13899326#comment-13899326
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Tyler Hobbs commented on CASSANDRA-6663:
----------------------------------------
Alright, the python driver now avoids sending an OPTIONS message if it's not
strictly needed, so that should be a usable workaround.
> Connecting to a Raspberry PI Cassandra Cluster crashes the node being
> connected to
> ----------------------------------------------------------------------------------
>
> Key: CASSANDRA-6663
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6663
> Project: Cassandra
> Issue Type: Bug
> Components: Drivers (now out of tree)
> Environment: 4x node Raspberry PI cluster
> Macbook running Idle 2.7
> Reporter: ian mccrae
> Attachments: Python Client Log.txt, hs_err_pid6327.log
>
>
> I have a working 4x node Raspberry Pi cluster and
> # DevCenter happily connects to this (...which has an option to turn Snappy
> compression off)
> # ...however the Python Driver fails to connect and crashes the node being
> connected to with the errors in the error-log below.
> There appears to be a problem with Snappy compression (not supported on the
> Raspberry Pi). So I also tried "compression = None" with the same result.
> How might I fix this?
> *Python Code*
> {noformat}
> >>> from cassandra.cluster import Cluster
> >>> cluster = Cluster(['192.168.200.151'], compression = None)
> >>> session = cluster.connect()
> {noformat}
> *Error Log*
> {noformat}
> Traceback (most recent call last):
> File "<pyshell#58>", line 1, in <module>
> session = cluster.connect()
> File
> "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/cassandra/cluster.py",
> line 471, in connect
> self.control_connection.connect()
> File
> "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/cassandra/cluster.py",
> line 1351, in connect
> self._set_new_connection(self._reconnect_internal())
> File
> "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/cassandra/cluster.py",
> line 1386, in _reconnect_internal
> raise NoHostAvailable("Unable to connect to any servers", errors)
> NoHostAvailable: ('Unable to connect to any servers', {'192.168.200.151':
> ConnectionShutdown('Connection to 192.168.200.151 is closed',))
> {noformat}
> *A Dump of the "cluster" class attributes*
> {noformat}
> >>> pprint(vars(cluster))
> {'_core_connections_per_host': {0: 2, 1: 1},
> '_is_setup': True,
> '_is_shutdown': True,
> '_listener_lock': <thread.lock object at 0x10616d230>,
> '_listeners': set([]),
> '_lock': <_RLock owner=None count=0>,
> '_max_connections_per_host': {0: 8, 1: 2},
> '_max_requests_per_connection': {0: 100, 1: 100},
> '_min_requests_per_connection': {0: 5, 1: 5},
> '_prepared_statements': <WeakValueDictionary at 4396942904>,
> 'compression': None,
> 'contact_points': ['192.168.200.151'],
> 'control_connection': <cassandra.cluster.ControlConnection object at
> 0x106168cd0>,
> 'control_connection_timeout': 2.0,
> 'cql_version': None,
> 'executor': <concurrent.futures.thread.ThreadPoolExecutor object at
> 0x106148410>,
> 'load_balancing_policy': <cassandra.policies.RoundRobinPolicy object at
> 0x104adae50>,
> 'max_schema_agreement_wait': 10,
> 'metadata': <cassandra.metadata.Metadata object at 0x1061481d0>,
> 'metrics_enabled': False,
> 'port': 9042,
> 'scheduler': <cassandra.cluster._Scheduler object at 0x106148550>,
> 'sessions': <_weakrefset.WeakSet object at 0x106148750>,
> 'sockopts': None,
> 'ssl_options': None}
> >>>
> {noformat}
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