Comment 4 for bug 1508007

Look at the env - the issue is on Qa side, scenario is next - we revert prepared environment, and get only master node active, slaves failed to be started, so that marked as ofline, we do not check this in tests and try to delete env, as result env failed to be deletedfor 6 minutes(we try several times and wait rpc answer) and tests marked as fail. If we revert failed snapshot - waiting for additional several minutes - env successfully deleted