[dovecot/core] b394d4: cassandra: Use fallback consistency for CASS_ERROR...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: b394d41ad4da0e2e7b8bfafccf3b4f3e9ac26ad1
      https://github.com/dovecot/core/commit/b394d41ad4da0e2e7b8bfafccf3b4f3e9ac26ad1
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2017-04-24 (Mon, 24 Apr 2017)

  Changed paths:
    M src/lib-sql/driver-cassandra.c

  Log Message:
  -----------
  cassandra: Use fallback consistency for CASS_ERROR_LIB_NO_HOSTS_AVAILABLE errors

I'm not entirely sure if this is always appropriate, but at least this error
happens every time when attempting to use write_consistency=two when there
is only a single Cassandra node.