Adding metric descriptions

Signed-off-by: Danny Kopping <[email protected]>

exporter.go

@@ -66,85 +66,85 @@ func NewExporter(labels map[string]string, groups ...GroupStatistics) *Exporter
  groups: groups,
  groupGets: prometheus.NewDesc(
  "gets_total",
- "todo",
+ "Counter of cache gets (including from peers)",
  []string{"group"},
  labels,
  ),
  groupCacheHits: prometheus.NewDesc(
  "hits_total",
- "todo",
+ "Count of cache hits (from either main or hot cache)",
  []string{"group"},
  labels,
  ),
  groupPeerLoads: prometheus.NewDesc(
  "peer_loads_total",
- "todo",
+ "Count of non-error loads or cache hits from peers",
  []string{"group"},
  labels,
  ),
  groupPeerErrors: prometheus.NewDesc(
  "peer_errors_total",
- "todo",
+ "Count of errors from peers",
  []string{"group"},
  labels,
  ),
  groupLoads: prometheus.NewDesc(
  "loads_total",
- "todo",
+ "Count of (gets - hits)",
  []string{"group"},
  labels,
  ),
  groupLoadsDeduped: prometheus.NewDesc(
  "loads_deduped_total",
- "todo",
+ "Count of loads after singleflight",
  []string{"group"},
  labels,
  ),
  groupLocalLoads: prometheus.NewDesc(
  "local_load_total",
- "todo",
+ "Count of loads from local cache",
  []string{"group"},
  labels,
  ),
  groupLocalLoadErrs: prometheus.NewDesc(
  "local_load_errs_total",
- "todo",
+ "Count of loads from local cache that failed",
  []string{"group"},
  labels,
  ),
  groupServerRequests: prometheus.NewDesc(
  "server_requests_total",
- "todo",
+ "Count of gets that came over the network from peers",
  []string{"group"},
  labels,
  ),
  cacheBytes: prometheus.NewDesc(
  "cache_bytes",
- "todo",
+ "Gauge of current bytes in use",
  []string{"group", "type"},
  labels,
  ),
  cacheItems: prometheus.NewDesc(
  "cache_items",
- "todo",
+ "Gauge of current items in use",
  []string{"group", "type"},
  labels,
  ),
  cacheGets: prometheus.NewDesc(
  "cache_gets_total",
- "todo",
+ "Count of cache gets",
  []string{"group", "type"},
  labels,
  ),
  cacheHits: prometheus.NewDesc(
  "cache_hits_total",
- "todo",
+ "Count of cache hits",
  []string{"group", "type"},
  labels,
  ),
  cacheEvictions: prometheus.NewDesc(
  "cache_evictions_total",
- "todo",
+ "Count of cache evictions",
  []string{"group", "type"},
  labels,
  ),