Migrating Managed Service for OpenSearch cluster host groups to a different availability zone
Managed Service for OpenSearch cluster host groups reside in Yandex Cloud availability zones. To move a host group from one availability zone to another:
- In the management console, navigate to the folder page.
- Navigate to the Managed Service for OpenSearch service.
- Locate the cluster you need in the list, click its name, and select the Node groups tab.
- In the row with the host group, click and select Edit.
- In the Host placement field, select the target availability zone for the clusters and remove the source zone.
- Click Save.
Repeat the steps to move each host group.
For clusters with hosts residing in the ru-central1-d availability zone, local SSD storage is not available if using Intel Cascade Lake.
Specifics of migration in Yandex Data Transfer
If your cluster is used as an endpoint when transferring data using Data Transfer:
-
Make sure not all the cluster host groups are located in the
ru-central1-davailability zone; otherwise, the transfer will not run the way it should. If you are migrating host groups to theru-central1-davailability zone, place at least one group in theru-central1-aorru-central1-bzone. The transfer will select the appropriate zone automatically. If there is a single host group in your cluster, place it in theru-central1-aorru-central1-bzone. -
If the transfer type is Replication or Snapshot and increment, restart the transfer after adding new host groups and deleting the old ones. This way, it will get data about the cluster's new topology. You do not need to restart Snapshot transfers, as information about the new topology is provided automatically upon their activation.
To restart a transfer, choose one of the two methods:
- Deactivate the transfer and wait for its status to change to Stopped. Next, reactivate the transfer and wait for its status to change to Replicating.
- Update any setting for the transfer or endpoint.
For more information, see Migrating a Data Transfer transfer and endpoints to a different availability zone.