[skip ci] Add grafana panel description (#9006)

Signed-off-by: NEdward Zeng <jie.zeng@zilliz.com>

deployments/monitor/grafana/milvus-dashboard.json

@@ -16,7 +16,7 @@
   "gnetId": null,
   "graphTooltip": 0,
   "id": 25,
-  "iteration": 1633022003858,
+  "iteration": 1633051158004,
   "links": [],
   "panels": [
     {
@@ -455,6 +455,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:164",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -463,6 +464,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:165",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -1203,6 +1205,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:109",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -1211,6 +1214,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:110",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -1305,6 +1309,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:185",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -1313,6 +1318,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:186",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -1385,7 +1391,7 @@
     },
     {
       "datasource": "$datasource",
-      "description": "",
+      "description": "Successful RootCoord Show partition operations",
       "fieldConfig": {
         "defaults": {
           "mappings": [],
@@ -3021,6 +3027,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:660",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -3029,6 +3036,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:661",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -3122,6 +3130,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:584",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -3130,6 +3139,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:585",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -4158,6 +4168,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:269",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -4166,6 +4177,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:270",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -4254,6 +4266,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:345",
           "format": "bytes",
           "label": null,
           "logBase": 1,
@@ -4262,6 +4275,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:346",
           "format": "bytes",
           "label": null,
           "logBase": 1,
@@ -4351,6 +4365,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:421",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -4359,6 +4374,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:422",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -4447,6 +4463,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:434",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -4455,6 +4472,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:435",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -4544,6 +4562,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:92",
           "format": "bytes",
           "label": null,
           "logBase": 1,
@@ -4552,6 +4571,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:93",
           "format": "bytes",
           "label": null,
           "logBase": 1,
@@ -4736,6 +4756,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:51",
           "format": "bytes",
           "label": null,
           "logBase": 1,
@@ -4744,6 +4765,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:52",
           "format": "bytes",
           "label": null,
           "logBase": 1,
@@ -4831,6 +4853,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:164",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -4839,6 +4862,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:165",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -4927,6 +4951,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:455",
           "decimals": null,
           "format": "short",
           "label": null,
@@ -4936,6 +4961,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:456",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -5611,6 +5637,7 @@
       },
       "yaxes": [
         {
+          "$$hashKey": "object:204",
           "decimals": null,
           "format": "short",
           "label": null,
@@ -5620,6 +5647,7 @@
           "show": true
         },
         {
+          "$$hashKey": "object:205",
           "format": "short",
           "label": null,
           "logBase": 1,
@@ -5688,9 +5716,9 @@
       {
         "allValue": null,
         "current": {
-          "selected": false,
-          "text": "test",
-          "value": "test"
+          "selected": true,
+          "text": "default",
+          "value": "default"
         },
         "datasource": "$datasource",
         "definition": "label_values(kube_pod_info, namespace)",
@@ -5815,5 +5843,5 @@
   "timezone": "browser",
   "title": "Milvus2.0",
   "uid": "uLf5cJ3Gz",
-  "version": 130
+  "version": 131
 }
\ No newline at end of file