Eject the bad connection from the pool even on the last try.
Eject the bad connection from the pool even on the last try.

Also, don't penalize a node that has some unspecified unretryable
exception.

basho/riak-python-client,basho/riak-python-client,basho/riak-python-client,bmess/riak-python-client,GabrielNicolasAvellaneda/riak-python-client,bmess/riak-python-client,GabrielNicolasAvellaneda/riak-python-client