Registry and Registry Proxy
Registry provides the Service Discovery capabilities to Opsview. At least one copy of the package has to be installed in case of single-node cluster. It can be installed on any server that is reachable from all the other servers, see Ports. When part of the cluster, it will exchange heartbeats with other nodes every 0.1s (configurable).
Registry Proxy provides access to the Registry component using Loadbalancer. Please make sure you have the loadbalancer installed, configured and running before attempting to start the opsview-registry process
Refer to Advanced Automated Installation.
We ship the
opsview-registry with a default configuration which can be modified or overridden by the user.
- default setting:
- custom setting example:
- user settings:
Default setting settings are restored on upgrade/installation, user settings are left as defined by the user. The setting files follow the YAML file format, setting are stored on a <setting_name>:
The custom setting example contains an example on how to override default value.
data_dir: Path to the data directory
wal_dir: Path to the dedicated wal directory, this allows a dedicated disk to be used, and helps avoid io competition between logging and other IO operations.
snapshot_count: Number of committed transactions to trigger a snapshot to disk
heartbeat_interval: Time (in milliseconds) of a heartbeat interval
election_timeout: Time (in milliseconds) for an election to timeout
listen_peer_port: Port to listen on for peer traffic.
listen_client_port: Port to listen on for client traffic.
Watchdog service files are now managed by the package, doing a remove would leave the watchdog service file behind with a .save extension. Purging the package will remove it. The package managed config files are as follows:
Watchdog service files are now managed by the package. Any modifications will be saved at upgrade and remove processes with the .rpmnew and .rpmsave extenstions correspondingly.
WarningRestarting or stopping registry will trigger a failure in the majority of Opsview Monitor components.
As root, start, stop and restart the service using:
/opt/opsview/watchdog/bin/opsview-monit <start|stop|restart> opsview-registry