AWS provided cross cluster replication is same feature for managed OpenSearch domains. It does provide live data syncing with an SLA of 1 minute lag. Feel free to use managed service feature for both live data syncing and disaster recovery.
Yeah, we are using the AWS provided OpenSearch CCR by enabling the Inbound/Outbound connections between the leader/follower domains. And, we were been told by AWS SME that it should be used only for the DR solution not for the live data sync as it takes some time to replicate between the two domains.
And, he also suggested logstash lambda approach for live data sync between 2 domains. So, we are exploring these options too though we didn’t see any issues with the above DR sync option.
Curious to know where you found the AWS provided SLS of 1 minute lag with provided CCR, would be great if you can share any page on that.