Slab panels: add alias tag, sort legend and tooltip

Author: DifferentialOrange

example/project/app/roles/custom.lua

@@ -1,9 +1,11 @@
 local cartridge = require('cartridge')
 local metrics = require("metrics")
-metrics.enable_default_metrics()
 local json_metrics = require("metrics.plugins.json")
 local prometheus = require("metrics.plugins.prometheus")
 
+metrics.set_global_labels({ alias = 'instance'})
+metrics.enable_default_metrics()
+
 local function init(opts) -- luacheck: no unused args
     -- if opts.is_master then
     -- end

tarantool/slab.libsonnet

@@ -31,13 +31,17 @@ local influxdb = grafana.influxdb;
     labelY1='used ratio',
     fill=0,
     decimals=2,
+    sort='decreasing',
     legend_alignAsTable=true,
     legend_current=true,
     legend_values=true,
-    legend_sortDesc=true
+    legend_sort='current',
+    legend_sortDesc=true,
   ).addTarget(
     influxdb.target(
-      measurement=measurement
+      measurement=measurement,
+      group_tags=['label_pairs_alias'],
+      alias='$tag_label_pairs_alias',
     ).where('metric_name', '=', metric_name).selectField('value').addConverter('mean')
   ),
 

tests/InfluxDB/dashboard_compiled.json

@@ -110,6 +110,7 @@
             "rightSide": false,
             "show": true,
             "sideWidth": null,
+            "sort": "current",
             "sortDesc": true,
             "total": false,
             "values": true
@@ -129,13 +130,20 @@
          "steppedLine": false,
          "targets": [
             {
+               "alias": "$tag_label_pairs_alias",
                "groupBy": [
                   {
                      "params": [
                         "$__interval"
                      ],
                      "type": "time"
                   },
+                  {
+                     "params": [
+                        "label_pairs_alias"
+                     ],
+                     "type": "tag"
+                  },
                   {
                      "params": [
                         "none"
@@ -176,7 +184,7 @@
          "title": "Used by slab allocator (quota_used_ratio)",
          "tooltip": {
             "shared": true,
-            "sort": 0,
+            "sort": 2,
             "value_type": "individual"
          },
          "type": "graph",
@@ -233,6 +241,7 @@
             "rightSide": false,
             "show": true,
             "sideWidth": null,
+            "sort": "current",
             "sortDesc": true,
             "total": false,
             "values": true
@@ -252,13 +261,20 @@
          "steppedLine": false,
          "targets": [
             {
+               "alias": "$tag_label_pairs_alias",
                "groupBy": [
                   {
                      "params": [
                         "$__interval"
                      ],
                      "type": "time"
                   },
+                  {
+                     "params": [
+                        "label_pairs_alias"
+                     ],
+                     "type": "tag"
+                  },
                   {
                      "params": [
                         "none"
@@ -299,7 +315,7 @@
          "title": "Used for tuples and indexes (arena_used_ratio)",
          "tooltip": {
             "shared": true,
-            "sort": 0,
+            "sort": 2,
             "value_type": "individual"
          },
          "type": "graph",
@@ -356,6 +372,7 @@
             "rightSide": false,
             "show": true,
             "sideWidth": null,
+            "sort": "current",
             "sortDesc": true,
             "total": false,
             "values": true
@@ -375,13 +392,20 @@
          "steppedLine": false,
          "targets": [
             {
+               "alias": "$tag_label_pairs_alias",
                "groupBy": [
                   {
                      "params": [
                         "$__interval"
                      ],
                      "type": "time"
                   },
+                  {
+                     "params": [
+                        "label_pairs_alias"
+                     ],
+                     "type": "tag"
+                  },
                   {
                      "params": [
                         "none"
@@ -422,7 +446,7 @@
          "title": "Used only for tuples (items_used_ratio)",
          "tooltip": {
             "shared": true,
-            "sort": 0,
+            "sort": 2,
             "value_type": "individual"
          },
          "type": "graph",