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https://issues.apache.org/jira/browse/CASSANDRA-9915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14658331#comment-14658331
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Adam Holmberg commented on CASSANDRA-9915:
------------------------------------------

The driver is definitely having problems with the {{healthcheck.testdyna}} 
table, which has a comparator of {{DynamicCompositeType()}} (with no subtypes). 
The driver was written assuming composite types should always have subtypes. 
*[~prabir_apache] do you know how this table was created?* I'm trying to figure 
out if this is valid metadata that should be handled, or if something has gone 
wrong on the server side.

In any case, I created this ticket to make the driver more robust against these 
unexpected metadata states.
https://datastax-oss.atlassian.net/browse/PYTHON-370

In the mean time, if you are not using that table you can resolve this by 
dropping it via JDBC.

> IndexError('list index out of range') when trying to connect to Cassandra 
> cluster with cqlsh
> --------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-9915
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9915
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Ubuntu, Cassandra 2.5.1, Python 2.7.3
>            Reporter: Prabir Kr Sarkar
>            Assignee: Adam Holmberg
>            Priority: Critical
>              Labels: cqlsh
>             Fix For: 2.1.x
>
>         Attachments: schema_columnfamilies.xls
>
>
> Cassandra by default uses a Python driver to connect
> {code}
> >>> cluster = Cluster(['IP'], protocol_version=3)
> >>> session = cluster.connect()
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/usr/local/lib/python2.7/dist-packages/cassandra/cluster.py", line 
> 839, in connect
>     self.control_connection.connect()
>   File "/usr/local/lib/python2.7/dist-packages/cassandra/cluster.py", line 
> 2075, in connect
>     self._set_new_connection(self._reconnect_internal())
>   File "/usr/local/lib/python2.7/dist-packages/cassandra/cluster.py", line 
> 2110, in _reconnect_internal
>     raise NoHostAvailable("Unable to connect to any servers", errors)
> cassandra.cluster.NoHostAvailable: ('Unable to connect to any servers', 
> {'IP': IndexError('list index out of range',)})
> {code}



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