Fix cleaning of old devices

Author: syepes

CHANGELOG.md

@@ -6,6 +6,10 @@ This CHANGELOG follows the format listed at [Keep A Changelog](http://keepachang
 
 ## [Unreleased]
 
+## 0.2.18 - 2022-09-09
+
+- Fix rcleaning of removed devices
+
 ## 0.2.14 - 2022-06-14
 
 - Update deps

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "sio2prom"
-version = "0.2.17"
+version = "0.2.18"
 edition = "2021"
 authors = ["Sebastian YEPES F <[email protected]>"]
 keywords = ["prometheus", "metrics", "scaleio", "VxFlex", "PowerFlex"]

Cargo.toml

@@ -141,7 +141,9 @@ async fn metrics_handler() -> Result<impl Reply, Rejection> {
 
 fn load_metrics(metrics: &[sio::metrics::Metric]) {
   let mut counters = METRIC_COUNTERS.lock().expect("Failed to obtain metric counter lock");
+  counters.clear();
   let mut gauges = METRIC_GAUGES.lock().expect("Failed to obtain metric gauge lock");
+  gauges.clear();
 
   for m in metrics {
     let labels: Vec<&str> = m.labels.iter().map(|v| *v.0).collect::<Vec<_>>();