On Wed, Mar 15, 2017 at 8:48 AM, Luca Morandini <[email protected]> wrote:
> > I don't know about the specific error, but the documentation clearly
> indicates
> > that a reload should never be used along with the JMS clustering
> > extension:
>
> Well, it says that hitting "Reload" would trigger the complete rebuild of
> all
> resources on the slaves, which would be fine when adding empty instances
> to the
> cluster, I supposed.
>
When it says "things to avoid" it really means it, I had data dirs busted
by doing
that by accident (training setup, I was not aware the clustering was
already on
while doing the basic parts and hitting reload willy-nilly...)
>
>
> > I'm a bit surprised you did not end up ruining the slave's
> configuration...
>
> It was empty (separate data dirs), not much to ruin there.
>
> So, when adding a new instance, shall I stop accepting catalog changes,
> copy the
> data dir to the new instance, connect the new (slave) instance to the
> master, and
> then restart accepting catalog changes?
>
I'm not sure, but yes, that seems like a legit approach. For a elastic
scaling approach
I'd rather go for shared data directory, only master writes, and remember
to separate
the logs.
Cheers
Andrea
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