qdiskd has an incorrect logging level for the message indicating that the token timeout was incorrect
If the token timeout was set wrongly in cluster.conf then qdisk just printed the unhelpful message "qdiskd: configuration failed"
Change the message level from DEBUG to ERR
If the token timeout is set incorrectly for qdiskd then a more explanatory message:
qdiskd: Configuration failed.
qdiskd: Token timeout 3000 is too fast to use with qdiskd!"
is now printed