Troubleshooting

This section contains guides to help troubleshoot common issues in an Ozone deployment.

📄️Safemode

Use this page when the Storage Container Manager (SCM) stays in safemode longer than expected after startup or a restart, and client writes fail.

📄️Integrations

This section contains guides to help troubleshoot Ozone integration with other systems.

📄️Security

This section contains guides to help troubleshoot security related issues in an Ozone deployment.

📄️OM HA snapshot installation

When a new Ozone Manager (OM) is added to an existing OM HA cluster, it needs to obtain the latest OM DB snapshot from the leader OM.

📄️Netty native (direct) memory

Symptom

📄️Client connectivity

Use this page when Ozone clients cannot connect to Datanodes for data transfer, even though metadata operations through the Ozone Manager still work.