Agents on Linux/Unix with file systems mounted via NFS (Network File System)
- Host metrics are unavailable from this agent or other malfunction of the agent
- The agent log contains the message
... warning [native] Unable to acquire mutex for updating inclusion/exclusion rules - collecting host metrics taking long or hanging?
- Using the
mountcommand, verify if the agent host has file systems mounted via NFS.
- Check if the NFS file systems are operating properly. If the NFS server is unavailable, the NFS file system may be stalled.
- If the NFS file system is not operating properly, fix the NFS file system issue and restart the process which contains the agent.
Further reading: http://nfs.sourceforge.net/nfs-howto/ar01s07.html
Unlike directly attached file systems, NFS file systems can be stalled if the NFS file server is unavailable. This prevents the agent from operating properly.