Questions and answers about Managed Service for OpenSearch
General questions
How are OpenSearch clusters maintained?
Maintenance in Managed Service for OpenSearch implies:
- Automatic installation of OpenSearch updates and fixes for your database nodes.
- Changes to the node class and storage size.
- Other Managed Service for OpenSearch maintenance activities.
For more information, see Maintenance.
Is cluster backup enabled by default?
Yes, backup is enabled by default. For Managed Service for OpenSearch clusters, a complete backup is performed once a day, and all the indexes are saved. This helps restore a cluster's state from any available backup.
Backups are kept for 7 days.
Which version of OpenSearch does Managed Service for OpenSearch use?
Managed Service for OpenSearch only supports OpenSearch 2.8.
Can I get logs of my operations with services?
Yes, you can request log records about your resources from Nebius AI services. For more information, see Data requests.
What is the retention period for logs?
Cluster logs are stored for 30 days.
Why is a cluster working slowly even though it still has free computing resources?
Perhaps, the maximum storage IOPS and bandwidth values are insufficient for processing the current number of requests. In this case, throttling is triggered and the performance of the entire cluster degrades.
The maximum IOPS and bandwidth values increase by a fixed value when the storage size increases by a certain step. The step and increment values depend on the disk type:
Disk type | Step, GB | Max IOPS increase (read/write) | Max bandwidth increase (read/write), MB/s |
---|---|---|---|
network-hdd |
256 | 300/300 | 30/30 |
network-ssd |
32 | 1,000/1,000 | 15/15 |
To increase the maximum IOPS and bandwidth values and make throttling less likely, increase the storage size or switch to a faster disk type by restoring the cluster from a backup.