keith-turner opened a new issue, #1300:
URL: https://github.com/apache/accumulo/issues/1300
I think the expectation when someone does an Accumulo upgrade is that all
Accumulo processes are killed across the cluster before starting the new
version of Accumulo. However, what if anything is done to handle a situation
like the following.
* Some 1.9.3 tablet servers are running and have metadata tablets assigned
to them
* A 2.0.0 master process is started and it starts working on upgrade.
What will happen in this situation? I think ideally the 2.0.0 master
process would log an error message about the 1.9.3 tservers, take no upgrade
actions, and terminate itself.
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