# Can follower index become independent index after I call \_stop API? **URL:** \ **Category:** Cross-Cluster Replication\ **Tags:** discuss\ **Created:** [March 13, 2022, 4:54am UTC](https://forum.opensearch.org/t/can-follower-index-become-independent-index-after-i-call-stop-api/8891 "2022-03-13T04:54:26Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![kulkarni.prasanna](https://avatars.discourse-cdn.com/v4/letter/k/e9c0ed/32.png) [@kulkarni.prasanna](https://forum.opensearch.org/u/kulkarni.prasanna)\ **Post date:** [March 13, 2022, 4:54am UTC](https://forum.opensearch.org/t/can-follower-index-become-independent-index-after-i-call-stop-api/8891/1 "2022-03-13T04:54:26Z")
Hi, We’re preparing out solution for DR(Disaster Recovery). Initial plan is as follows: 1. There would be two opensearch clusters - cluster 1 in data center 1(DC1), cluster 2 in data center 2 (DC2). 2. DC1 would be active and DC2 would be passive 3. Indices from DC1 are replicated to DC2 4. In case of DC1 failure - all apps would start referring to DC2. What I wanted to know was - when I stop replication from DC1 to DC2 for a certain index, can I use the DC2 index in read\_write mode? E.g. When DC2 becomes active - I would call \_stop API on an index from DC2. (There’s no DC1 cluster present to follow now, and DC2 is supposed to become my active cluster) Can my apps start writing to DC2 index and treat it as just a regular index? Regards, Prasanna ---
**Author:** ![BlackMetalz](https://avatars.discourse-cdn.com/v4/letter/b/d6d6ee/32.png) [@BlackMetalz](https://forum.opensearch.org/u/BlackMetalz)\ **Post date:** [March 24, 2022, 4:03am UTC](https://forum.opensearch.org/t/can-follower-index-become-independent-index-after-i-call-stop-api/8891/2 "2022-03-24T04:03:28Z")
> [@Several question related to Cross-Cluster replication ( awesome feature of Opensearch )](https://forum.opensearch.org/t/several-question-related-to-cross-cluster-replication-awesome-feature-of-opensearch/8991): > > So I follow the documents: [Cross-cluster replication - OpenSearch documentation](https://opensearch.org/docs/latest/replication-plugin/index/) And I’m able to set up Cross-Cluster Replication ( CCR ) as the document said xD But there is something still missing from the document: How I can promote replica clusters to main/major cluster ( I assume the whole main cluster die and I want to promote replica cluster for availability ) as document said: OpenSearch stops replicating \*new\* indexes that match the pattern, but existing indexes that the rule previ… You may want to read my post and my un-answered question 😁 ---
**Author:** ![amkhar](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@amkhar](https://forum.opensearch.org/u/amkhar)\ **Post date:** [March 25, 2022, 1:15pm UTC](https://forum.opensearch.org/t/can-follower-index-become-independent-index-after-i-call-stop-api/8891/3 "2022-03-25T13:15:45Z")
Yes, once replication is stopped, follower index can be used in read-write mode. You can treat it as a regular index.