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Romain Hardouin edited comment on CASSANDRA-13779 at 8/19/17 4:37 PM: ---------------------------------------------------------------------- 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"',)}) -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org