Erik Grinaker 0d5a512825 safekeeper: add walreceiver metrics (#9450) ...

## Problem

We don't have any observability for Safekeeper WAL receiver queues.

## Summary of changes

Adds a few WAL receiver metrics:

* `safekeeper_wal_receivers`: gauge of currently connected WAL
receivers.
* `safekeeper_wal_receiver_queue_depth`: histogram of queue depths per
receiver, sampled every 5 seconds.
* `safekeeper_wal_receiver_queue_depth_total`: gauge of total queued
messages across all receivers.
* `safekeeper_wal_receiver_queue_size_total`: gauge of total queued
message sizes across all receivers.

There are already metrics for ingested WAL volume: `written_wal_bytes`
counter per timeline, and `safekeeper_write_wal_bytes` per-request
histogram.

2024-11-04 15:22:46 +00:00

..

src

safekeeper: add walreceiver metrics (#9450)

2024-11-04 15:22:46 +00:00

Cargo.toml

remove workspace hack from libs (#8780)

2024-08-21 14:45:32 +01:00