opHA Message Bus Troubleshooting
- John Sinclair
- James Greenwood
ophad
status for ophad
sudo systemctl status ophad
log file for ophad
sudo journalctl -fu ophad -n 50
NATS
status for nats-server
sudo systemctl status nats-server
log file for nats-server
sudo journalctl -fu nats-server -n 50
omkd
If the omkd service will not start and you get the following messages in /usr/local/omk/log/opDaemon.log
[info] RBAC disabled, failed to getDb Connection, error string:Error Connecting to Database localhost:27017: MongoDB::Error: host list ':27017' contains empty host . . .[error] Failed to get nodes model: Find failed: MongoDB::DatabaseError: node is not in primary or recovering state
It is because the db_mongo_cluster has not been configured correctly.
Delete the following line from the opCommon.json file.
"db_mongo_cluster": [],
If you get
[error] Failed to get nodes model: Find failed: MongoDB::DatabaseError: node is not in primary or recovering state
It is because you have not completed the step to Initialize MongoDB Replica Set
Duplicated nodes on the primary
When operating opHA in a configuration that includes both a poller and a mirror pair, you may notice duplicate node entries appearing in opCharts and NMIS. It's important to understand that this is only a visual duplication - there is still just one actual node being monitored in the system.