This test was made flakey by #8839. The cooldown period means that the node in the test will not try to reconnect as quickly as the test expects. This change makes the cooldown shorter in the test so that the node quickly reconnects.
These timeouts default to 'do not time out' if they are not set. This times up resources, potentially indefinitely. If node on the other side of the the handshake is up but unresponsive, the[ handshake call](edec79448a/internal/p2p/router.go (L720)) will _never_ return.
These are proposed values that have not been validated. I intend to validate them in a production setting.
The dial routines perform network i/o, which is a blocking call into the kernel. These routines are completely unable to do anything else while the dial occurs, so for most of their lifecycle they are sitting idle waiting for the tcp stack to hand them data. We should increase this value by _a lot_ to enable more concurrent dials. This is unlikely to cause CPU starvation because these routines sit idle most of the time. The current value causes dials to occur _way_ too slowly.
Below is a graph demonstrating the before and after of this change in a testnetwork with many dead peers. You can observe that the rate that we connect to new, valid peers, is _much_ higher than previously. Change was deployed around the 31 minute mark on the graph.
## What does this change do?
This pull request completes the change to the `metricsgen` metrics. It adds `go generate` directives to all of the files containing the `Metrics` structs.
Using the outputs of `metricsdiff` between these generated metrics and `master`, we can see that there is not a diff between the two sets of metrics when run locally.
```
[william@sidewinder] tendermint[wb/metrics-gen-transition]:. ◆ ./scripts/metricsgen/metricsdiff/metricsdiff metrics_master metrics_generated
[william@sidewinder] tendermint[wb/metrics-gen-transition]:. ◆
```
This change also adds parsing for a `metrics:` key in a field comment. If a comment line begins with `//metrics:` the rest of the line is interpreted to be the metric help text. Additionally, a bug where lists of labels were not properly quoted in the `metricsgen` rendered output was fixed.
