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, go to the folder page and select Managed Service for OpenSearch.
- Click the name of the cluster you need 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 availability zone.
- Click Save.
Repeat the steps to move each host group.
Note
For clusters with hosts residing in the ru-central1-d availability zone, local SSD storage is not available if using the Intel Cascade Lake platform.
Specifics of migration in Yandex Data Transfer
If your cluster acts as an endpoint at data transfer using Data Transfer:
-
Make sure that not all cluster host groups are located in the
ru-central1-davailability zone; otherwise, the transfer will not operate correctly. 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 while activating them.
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.