consul/.changelog/10129.txt

```release-note:improvement
raft: allow reloading of raft trailing logs and snapshot timing to allow recovery from some [replication failure modes](https://github.com/hashicorp/consul/issues/9609).
telemetry: add metrics and documentation for [monitoring for replication issues](https://consul.io/docs/agent/telemetry#raft-replication-capacity-issues).
```
Make Raft trailing logs and snapshot timing reloadable (#10129) * WIP reloadable raft config * Pre-define new raft gauges * Update go-metrics to change gauge reset behaviour * Update raft to pull in new metric and reloadable config * Add snapshot persistance timing and installSnapshot to our 'protected' list as they can be infrequent but are important * Update telemetry docs * Update config and telemetry docs * Add note to oldestLogAge on when it is visible * Add changelog entry * Update website/content/docs/agent/options.mdx Co-authored-by: Matt Keeler <mkeeler@users.noreply.github.com> Co-authored-by: Matt Keeler <mkeeler@users.noreply.github.com> 2021-05-04 14:36:53 +00:00			```release-note:improvement
			`raft: allow reloading of raft trailing logs and snapshot timing to allow recovery from some [replication failure modes](https://github.com/hashicorp/consul/issues/9609).`
			`telemetry: add metrics and documentation for [monitoring for replication issues](https://consul.io/docs/agent/telemetry#raft-replication-capacity-issues).`
			```