I want to export a cassandra DB to a csv file, but
cqlsh:marvel> SELECT * FROM personajes ;
name | skills
------------+--------
Iron Man | Tech
Spider Man | Lab
cqlsh:marvel> COPY personajes (name, skills) TO 'temp.csv';
get_num_processes() takes no keyword arguments
Tested in:
[cqlsh 5.0.1 | Cassandra 2.1.14 | CQL spec 3.2.1 | Native protocol v3]
[cqlsh 5.0.1 | Cassandra 3.0.5 | CQL spec 3.4.0 | Native protocol v4]
Thank you
Delete pylib/cqlshlib/copyutil.so and copyutil.c (if you have it - I didn't).
The exact path depends on your OS I guess. On Ubuntu 14.04 copyutil.so would be a symlink inside /usr/lib/pymodules/python2.7/cqlshlib.
Just delete or rename it and you should be good to go. Worked for me at least.
For reference: This is indeed a bug and the same bug as https://issues.apache.org/jira/browse/CASSANDRA-11574, which I've learned after opening https://issues.apache.org/jira/browse/CASSANDRA-11816. Turned out the fix-version in the first ticket was wrong for Cassandra 2.2
