Securing the OpenSearch database
Tip
If you do not want the hassle of maintaining the DataMiner storage databases yourself, we recommend using DataMiner Storage as a Service instead.
TLS Encryption
For information on how to enable both client-server and inter-node TLS encryption, refer to TLS configuration
Upgrading OpenSearch
DataMiner supports both the 1.X and 2.X version range of OpenSearch; however, for new installations, we recommend installing OpenSearch 2.X.
We also recommend that you keep your OpenSearch installation up to date with the latest version within the range you have chosen.
Minor upgrade
There are two ways to perform a minor upgrade of an OpenSearch cluster:
Regardless of which upgrade strategy you choose, you will first need to perform these steps:
- Download the latest version within your release track: 1.X or 2.X.
- Back up the configuration files.
- Configure backups for your cluster if this was not configured yet.
- Take a snapshot to back up the cluster.
Cluster restart upgrade
Stop OpenSearch and OpenSearch Dashboards on all nodes in the cluster.
Install the new version of OpenSearch.
Start the nodes again.
The cluster will now run the new version of OpenSearch.
Tip
See also: Cluster restart upgrade in the OpenSearch documentation.
Rolling upgrade
To perform a rolling upgrade, refer to the rolling upgrade guide in the OpenSearch documentation.
Major upgrade
To go from one major release range to another (e.g. 1.X to 2.X), we recommend first upgrading to the latest version in the current range before upgrading to the new range.
It is not possible to use the rolling upgrade strategy for major upgrades, so you will have to perform a cluster restart upgrade for this.