How to backup AWS opensearch to on-prem

Question

Hello,
 
I have assigned for backup data Opensearch from aws to local disk.
Is it possible to ?
1. Create Opensearch on-prem
2. Backup data from AWS to local disk
3. Upload to on-prem Opensearch

Do you have medthod how I backup to local?

Note: I no have exp about Opensearch before

Answer

You can use the snapshot method to restore data from AWS cluster to on-prem. I'm outlining the process with the assumption that the snapshot repository used is S3.
1) Configure the cluster in AWS to use S3 as a repository.
2) Take a snapshot of the indices ( all or selected). The first snapshot would take time since its a full backup. Subsequent snapshot would be quicker.
3) Verify that the snapshot process completed successfully.
4) Configure the on-prem cluster to use S3 as a source repository for restore ( preferably in readonly mode to minimize risk of messing with backup)
5) Restore the indices from the snapshot
6) Verify the data on on-prem cluster esp. document count in index.

You can find details here - https://opensearch.org/docs/2.5/tuning-your-cluster/availability-and-recovery/snapshots/snapshot-restore/

--Syd

How to backup AWS opensearch to on-prem

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