Networking metrics to add to Prometheus

tomaka commented 4 years ago

To add:

[x] Number of records in the Kademlia storage. (#5660)
[ ] Number of active Kademlia iterative queries.
[ ] Number of active Kademlia RPC queries for which we're waiting for an answer.
[x] Number of open connections that are being kept alive ~~but unused at this time.~~
[ ] Number of open connections that are being used for Kademlia queries.
[ ] Number of open connections that are being used for light client requests.
[x] Number of open connections that are being used for syncing (new protocol).
[x] Number of open connections that are being used for notifications (for each notification protocol).
[x] Sizes of notifications (#5535)
[ ] Sizes of light client requests and responses.
[ ] Sizes of block requests (new protocol).
[ ] On the requesting side, delay between light client request and response.
[x] On the requesting side, delay between block request and response.

tomaka commented 4 years ago

I re-purposed this issued as a more generic "networking metrics to add" rather than Kademlia-specific.

tomaka commented 3 years ago

paritytech / polkadot-sdk