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dashboard: clarify the purpose of Concurrent flushes on disk panel (#849)

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Current description led to confusion at https://victoriametrics.slack.com/archives/CGZF1H6L9/p1603270014273800
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Roman Khavronenko 2020-10-28 18:10:46 +00:00 committed by GitHub
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commit 20311f6065
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1 changed files with 5 additions and 4 deletions
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dashboards/victoriametrics.json
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@ -56,7 +56,7 @@
"gnetId": 10229,
"graphTooltip": 0,
"id": null,
"iteration": 1599034965731,
"iteration": 1603307754894,
"links": [
{
"icon": "doc",
@ -925,7 +925,7 @@
"dashLength": 10,
"dashes": false,
"datasource": "$ds",
"description": "Shows how many ongoing insertions are taking place.\n* `max` - equal to number of CPU * 2\n* `current` - current number of goroutines busy with inserting rows into storage\n\nWhen `current` hits `max` constantly, it means storage is overloaded and require more CPU.",
"description": "Shows how many ongoing insertions (not API /write calls) on disk are taking place, where:\n* `max` - equal to number of CPUs;\n* `current` - current number of goroutines busy with inserting rows into underlying storage.\n\nEvery successful API /write call results into flush on disk. However, these two actions are separated and controlled via different concurrency limiters. The `max` on this panel can't be changed and always equal to number of CPUs. \n\nWhen `current` hits `max` constantly, it means storage is overloaded and requires more CPU.\n\n",
"fieldConfig": {
"defaults": {
"custom": {},
@ -979,6 +979,7 @@
{
"expr": "sum(vm_concurrent_addrows_capacity{job=\"$job\", instance=\"$instance\"})",
"format": "time_series",
"interval": "",
"intervalFactor": 1,
"legendFormat": "max",
"refId": "A"
@ -995,7 +996,7 @@
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Concurrent inserts ($instance)",
"title": "Concurrent flushes on disk ($instance)",
"tooltip": {
"shared": true,
"sort": 2,
@ -3293,4 +3294,4 @@
"title": "VictoriaMetrics",
"uid": "wNf0q_kZk",
"version": 1
}
}