Incremental repairs after a migration?

[Brice Figureau <br...@daysofwonder.com>]

Hi,

I'm running 3.0.15 in a 3 nodes cluster with RF=3.
This is a brand new cluster, on which I plan to migrate data from
another 3.0.15 cluster running in another environments (taking a
snapshot and sstableloader those sstables to the new cluster).

The original cluster had been migrated to incremental repairs when I
moved it to 3.0.

Should I need to perform again a full repair after migrating or is
running daily incremental enough?

Thanks!
-- 
Brice Figureau

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Re: Incremental repairs after a migration?

[kurt greaves <ku...@instaclustr.com>]

you can get away with loading from only one node if you're positive all
data is consistent. A repair prior to loading should be enough, but if that
doesn't work just load from all nodes.

On 11 Nov. 2017 23:15, "Brice Figureau" <br...@daysofwonder.com>
wrote:

> On 10/11/17 21:18, kurt greaves wrote:
> > If everything goes smoothly the next incremental should cut it, but a
> > full repair post load is probably a good idea anyway. Make sure you
> > sstableload every sstable from every node if you want to keep
> consistency.
>
> If the previous cluster had 3 nodes with RF=3 (like the new one), do I
> really need to sstableload all 3 nodes?
>
> I assumed that sstableloading one node would be enough to populate all
> data on all 3 nodes.
>
> --
> Brice Figureau
>
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Re: Incremental repairs after a migration?

[Brice Figureau <br...@daysofwonder.com>]

On 10/11/17 21:18, kurt greaves wrote:
> If everything goes smoothly the next incremental should cut it, but a
> full repair post load is probably a good idea anyway. Make sure you
> sstableload every sstable from every node if you want to keep consistency.

If the previous cluster had 3 nodes with RF=3 (like the new one), do I
really need to sstableload all 3 nodes?

I assumed that sstableloading one node would be enough to populate all
data on all 3 nodes.

-- 
Brice Figureau

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Re: Incremental repairs after a migration?

[kurt greaves <ku...@instaclustr.com>]

If everything goes smoothly the next incremental should cut it, but a full
repair post load is probably a good idea anyway. Make sure you sstableload
every sstable from every node if you want to keep consistency.