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https://issues.apache.org/jira/browse/CASSANDRA-13779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16134107#comment-16134107
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Romain Hardouin edited comment on CASSANDRA-13779 at 8/19/17 4:37 PM:
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Hi, this error happens when there is a mismatch between Cassandra version and
Driver version. This is not related to PyCharm. Be sure to check [Python
DataStax driver compatibility
matrix|https://docs.datastax.com/en/developer/driver-matrix/doc/pythonDrivers.html],
[Java DataStax driver compatibility
matrix|https://docs.datastax.com/en/developer/java-driver/3.3/manual/native_protocol/#compatibility-matrix],
etc.
(Note that DataStax Driver has its own bug tracker for
[Python|https://datastax-oss.atlassian.net/projects/PYTHON/issues/],
[Java|https://datastax-oss.atlassian.net/projects/JAVA/summary], etc.)
was (Author: rha):
Hi, this error happens when there is a mismatch between Cassandra version and
Driver version. This is not related to PyCharm. Be sure to check [DataStax
driver compatibility
matrix|https://docs.datastax.com/en/developer/java-driver/3.3/manual/native_protocol/#compatibility-matrix].
(Note that DataStax Driver has its own bug tracker:
https://datastax-oss.atlassian.net/projects/JAVA/summary )
> issue with pycharm datastax cassandra driver
> --------------------------------------------
>
> Key: CASSANDRA-13779
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13779
> Project: Cassandra
> Issue Type: Bug
> Reporter: venkatesulu
> Priority: Minor
>
> [Server error] message="io.netty.handler.codec.DecoderException:
> org.apache.cassandra.transport.ProtocolException: Invalid or unsupported
> protocol version: 4"',)})
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