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From Hannu Kröger <>
Subject Re: Nodetool Repair --full
Date Sat, 17 Mar 2018 15:52:48 GMT
Hi Jonathan,

If you want to repair just one node (for example if it has been down for more than 3h), run
“nodetool repair -full” on that node. This will bring all data on that node up to date.

If you want to repair all data on the cluster, run “nodetool repair -full -pr” on each
node. This will run full repair on all nodes but it will do it so only the primary range for
each node is fixed. If you do it on all nodes, effectively the whole token range is repaired.
You can run the same without -pr to get the same effect but it’s not efficient because then
you are doing the repair RF times on all data instead of just repairing the whole data once.

I hope this clarifies,

> On 17 Mar 2018, at 17:20, Jonathan Baynes <> wrote:
> Hi Community,
> Can someone confirm, as the documentation out on the web is so contradictory and vague.
> Nodetool repair –full if I call this, do I need to run this on ALL my nodes or is just
the once sufficient?
> Thanks
> J
> Jonathan Baynes
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