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https://issues.apache.org/jira/browse/CASSANDRA-6663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13895833#comment-13895833
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ian mccrae edited comment on CASSANDRA-6663 at 2/9/14 5:31 AM:
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Snappy has been turned off .....or at least should have as I have:
# Disabled internode compression in Cassandra.yaml files on nodes... with
internode_compression: none
# and called the Python driver with "compression = none"
However these configuration options don't appear to be working.
Also to my knowledge Snappy hasn't been port to ARM and so therefore is not an
option for the Raspberry Pi.
So this is a "Bug".
was (Author: ianm):
Snappy has been turned off .....or at least should have as I have:
# Disabled internode compression in Cassandra.yaml files on nodes
# and called the Python driver with "compression = none"
However these configuration options don't appear to be working.
Also to my knowledge Snappy hasn't been port to ARM and so therefore is not an
option for the Raspberry Pi.
So this is a "Bug".
> 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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