Github user joshelser commented on the issue:
https://github.com/apache/accumulo/pull/273
> I notice this change was targeted to 1.7. Is there any impact from this
change on using 1.7.3 server with 1.7.4 client and visa versa?
There is obviously the change in implementation that this introduces.
However, I believe it is purely in the "bugfix" realm. If you ran my test
without the KerberosToken patch, you'd get an error in KerberosToken about
mis-matched principals -- if you squashed that, you would get a `GSS initiate
failed` error when you try to make the Accumulo RPC. All of this comes from our
poor handling of this scenario.
To the best of my knowledge, there wouldn't be any negative aspect to this
change WRT cross-version support aside from the implicit change in how the
clients operate. As long as the RPC was set up in such a way that it _could_
theoretically work (at the SASL/Kerberos level) it should continue to work.
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