I have a few questions around recovering from total cluster failure and
would be grateful for any advice in this area.
We have a topology of:
- 3 x EC2 instances running elasticsearch
- each EC2 instance has an attached long-lived EBS volume for the data
directory ( /var/lib/elasticsearch )
- discovery (unicast) is via the elasticsearch-cloud-aws plugin
I've seen the following posts from earlier this year on how to handle
disaster recovery / total cluster failure:
In brief, the suggestion is to snapshot all the EBS volumes periodically
(assuming, the more frequently the better) and for disaster recovery:
- create new EBS volumes from the snapshots
- spin up new EC2 instances + attach EBS volumes
- start up elasticsearch
Is this still the recommended approach for DR / total cluster failure?
Or are there alternative strategies / improvements that have become
(those posts were coincident with elasticsearch 0.20.x and we're now at
Also would anyone know of new features around backup and restore of the
entire cluster that are due in version 1.0?
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