[infinispan-dev] Cache migration (rolling upgrades, dump/restore, etc)

[Gustavo Fernandes]

On Fri, May 19, 2017 at 11:50 AM, Vojtech Juranek <vjuranek at redhat.com>
wrote:

> On středa 17. května 2017 16:56:25 CEST Tristan Tarrant wrote:
> > 2) Need a way to "rollback" the process in case of failures during the
> > migration: redirecting the clients back to the original cluster without
> > data loss. This would use the above L4 strategy.
>
> it's not only about redirecting clients - IIRC newly created entries on
> target
> cluster are not propagated back to source cluster during rolling upgrade,


After the latest changes, new entries written to the target cluster are
supposed to propagated back to the source [1].

Did you find any issue with it?


[1] https://issues.jboss.org/browse/ISPN-7586

Thanks,
Gustavo



> so
> we need also somehow sync these new data back to source cluster during the
> rollback to avoid data losses. Same applies to "cancel process" feature
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