Explanation

The pages in this section aim to provide additional context and deeper understanding of foundational topics and concepts relevant to OpenSearch.

Cluster architecture

• Node roles and cluster topology — how node roles, data tiers, and the main orchestrator pattern work in large deployments.

• Cluster health and scaling — understanding green/yellow/red health states and safe scaling practices.

• Performance profiles — how profiles tune JVM heap, node count, and resource requirements.

• Persistent storage and disk recovery — risks of disk reuse, dangling indices, and last-resort disaster recovery.

Security

Secure deployments of Charmed OpenSearch can be achieved through using recommended configurations, including setting up encryption and authentication. For more details, see the Security topic overview, Cryptography, and TLS certificates explanation pages.

Testing and monitoring

For a deeper understanding of monitoring in Charmed OpenSearch, see the Monitoring explanation page.

Overview of our approach to testing Charmed OpenSearch is summarized in the Software testing for charms page.