| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package clickhouse |
| 4 | |
| 5 | import ( |
| 6 | "errors" |
| 7 | "strconv" |
| 8 | |
| 9 | "github.com/netdata/netdata/go/plugins/pkg/web" |
| 10 | ) |
| 11 | |
| 12 | const querySystemMetrics = ` |
| 13 | SELECT |
| 14 | metric, |
| 15 | value |
| 16 | FROM |
| 17 | system.metrics FORMAT CSVWithNames |
| 18 | ` |
| 19 | |
| 20 | func (c *Collector) collectSystemMetrics(mx map[string]int64) error { |
| 21 | req, err := web.NewHTTPRequest(c.RequestConfig) |
| 22 | if err != nil { |
| 23 | return err |
| 24 | } |
| 25 | req.URL.RawQuery = makeURLQuery(querySystemMetrics) |
| 26 | |
| 27 | px := "metrics_" |
| 28 | var metric string |
| 29 | var n int |
| 30 | |
| 31 | err = c.doHTTP(req, func(column, value string, lineEnd bool) { |
| 32 | switch column { |
| 33 | case "metric": |
| 34 | metric = value |
| 35 | case "value": |
| 36 | if !wantSystemMetrics[metric] { |
| 37 | return |
| 38 | } |
| 39 | n++ |
| 40 | if v, err := strconv.ParseInt(value, 10, 64); err == nil { |
| 41 | mx[px+metric] = v |
| 42 | } |
| 43 | } |
| 44 | }) |
| 45 | if err != nil { |
| 46 | return err |
| 47 | } |
| 48 | if n == 0 { |
| 49 | return errors.New("no system metrics data returned") |
| 50 | } |
| 51 | |
| 52 | return nil |
| 53 | } |
| 54 | |
| 55 | var wantSystemMetrics = map[string]bool{ |
| 56 | "Query": true, |
| 57 | "TCPConnection": true, |
| 58 | "HTTPConnection": true, |
| 59 | "MySQLConnection": true, |
| 60 | "PostgreSQLConnection": true, |
| 61 | "InterserverConnection": true, |
| 62 | "MemoryTracking": true, |
| 63 | "QueryPreempted": true, |
| 64 | "ReplicatedFetch": true, |
| 65 | "ReplicatedSend": true, |
| 66 | "ReplicatedChecks": true, |
| 67 | "ReadonlyReplica": true, |
| 68 | "PartsTemporary": true, |
| 69 | "PartsPreActive": true, |
| 70 | "PartsActive": true, |
| 71 | "PartsDeleting": true, |
| 72 | "PartsDeleteOnDestroy": true, |
| 73 | "PartsOutdated": true, |
| 74 | "PartsWide": true, |
| 75 | "PartsCompact": true, |
| 76 | "DistributedSend": true, |
| 77 | "DistributedFilesToInsert": true, |
| 78 | } |