I guess I’m considering this scenario:

·         host and configuration have survived

·         /data is gone

·         /backups have survived

 

I have tested recovering from this scenario with an evict/re-add, which worked fine.

 

If I restore from backup, the node will be behind the cluster – errrr, does it get caught up after a restore and start it up?

 

Alan

 

From: Jeff Jirsa [mailto:jjirsa@gmail.com]
Sent: Wednesday, June 12, 2019 10:02 AM
To: user@cassandra.apache.org
Subject: Re: Recover lost node from backup or evict/re-add?

 

To avoid violating consistency guarantees, you have to repair the replicas while the lost node is down

 

Once you do that it’s typically easiest to bootstrap a replacement (there’s a property named “replace address first boot” you can google or someone can link) that tells a new joining host to take over for a failed machine.

 


On Jun 12, 2019, at 6:54 AM, Alan Gano <AGano@tsys.com> wrote:

 

If I lose a node, does it make sense to even restore from snapshot/incrementals/commitlogs?

 

Or is the best way to do an evict/re-add?

 

 

Thanks,

 

Alan.

 

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