Exporting snapshot for security and hot backup

Elastic Stack Elasticsearch
1

Hello !

I have 2 question :

  • I know that snapshot and restore is the best way to backup an elasticsearch cluster, but since my ES is running inside a docker container which have a named volume, is it possible to backup this volume without stopping my ES container ? (i.e. is hot backup supported on ES ? )

  • Is it possible to export (or download) the snapshot created in ES in order to store it somewhere else ? From what I saw, the snapshot seems to be stored in .dat file and maybe in the indices/ folder but is it possible to export it as a tar archive maybe ? And will it be a problem when I try to restore it ?

Thanks !

2

In recent versions it is the only suppoted way to back up your Elasticsearch cluster.

Snapshots require external shared storage e.g. NFS volume or S3.

3

Thank you for the (very) fast answer @Christian_Dahlqvist !

From what I saw on Kibana, I only have 2 choices :

  • the read-only url, since it's read only I suppose I can't export snapshots with it ?
  • the shared file system which I tried to use but only seems to store the snapshot in the path I choose, which is a local solution

Which one should I use ? Am I doing something wrong ?

4

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