HA Notary Metrics
Corda nodes export various performance and health metrics for monitoring, as described in Node administration. The HA notary provides additional notary-related metrics as listed below.
The MySQLUniquenessProvider collects and exposes the following metrics.
|Commit||Transaction commit duration and transactions per seconds|
|IPS||Input states per second|
|BatchCommit||Transaction batch commit duration and rate meter|
|Rollback||When writing to multiple masters with Galera, transaction rollbacks may|
|happen due to high write contention|
|ConnectionException||Incremented when we can not obtain a DB connection|
|Conflicts||Double spend attempts, including notarisation retries|
|NumberOfInputStates||Distribution of number of input states per transaction|
|requestQueue.queuedStates||Number of requests in the queue at insert|
Below is a screenshot of the metrics displayed in the Hawtio console.