Hi everyone,
We are currently migrating from DSE to Apache Cassandra and we would like
to put in place an automatic and periodic *nodetool repair* execution to
replace the one executed by OpsCenter.
I wanted to create a script / service that would run something like that:
*token_rings = `nodetool ring | awk '{print $8}’` for(int i = 0; i <
token_rings.length; i += 2) { `nodetool repair -st token_rings[i] -et
token_rings[i+1]` }*
That script / service would run every week (our GCGrace is 10 days) and
would repair all the ranges of the ring one by one.
I also looked a bit on Google and I found that script:
https://github.com/BrianGallew/cassandra_range_repair
It seems to do something equivalent but it also seems to run the repair
node by node instead of the complete ring.
>From my understanding, that would mean that the script has to be run for
every node of the cluster and that all token ranges would be repair as many
time as the number of replicas containing it.
Is there something I misunderstand?
Which approach is better?
How do you handle your Periodic Anti-Entropy Repairs?
Thanks a lot!
