Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Is it possible to have running real nodes with version 2.4 and arbiter nodes with 2.0 or 1.8 in the replica set?

Upgrade guides for version 2.2 and 2.4, did not tell anything about upgrading arbiters.

share|improve this question
up vote 2 down vote accepted

The general recommendation is to have all members of a cluster or replica set running the same version, inclusing arbiters. Hence, generally you should upgrade arbiters when you upgrade everything else. In fact I would say to upgrade them first since if you have things configured correctly there will be no interruption in terms of operations from an arbiter upgrade (barring an outage elsewhere while you work).

They will probably work just fine with mixed versions, but since you would be then running in an untested (for long term use) configuration, if you run into any issues at all the first advice is going to be: upgrade.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.