We have a Production 3 nodes(agent/co-ordinator/db-server on each node) Arangodb cluster running on EC2 Instances with OS Amazon Linux 1. Currently we are migrating All our infra instances to Amazon Linux 2 OS.
Question: How can i migrate Arangodb Cluster (AL1) data to another New Arangodb Cluster (AL2) with out any downtime and data loss. Minimal downtime can be possible(like 1hr).
We are using Arangodb 3.9.2 version Community edition.
I have created a test ArangoDB's cluster similar to our production cluster and tried adding the 4th node i.e AL2 OS instance by removing 3rd node i.e, AL1 OS by following the below doc
https://www.arangodb.com/docs/stable/administration-starter-recovery.html
Problem faced: 4th node was added to the cluster successfully and 3rd node got removed. But when I validate the data 3rd node data was not synced to the newly added 4th node and we are facing data loss.
