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feat: add wait/backend to pg_stat_activity #1106

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Merged
merged 4 commits into from
Feb 15, 2025
Merged

feat: add wait/backend to pg_stat_activity #1106

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838e15b
feat: add wait/backend to pg_stat_activity
fgalind1 Dec 26, 2024
66853c8
Merge branch 'master' into stat-acti
fgalind1 Jan 4, 2025
ec1fd4e
Merge branch 'master' into stat-acti
fgalind1 Jan 16, 2025
b00d631
Merge branch 'master' into stat-acti
fgalind1 Feb 13, 2025
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3 changes: 3 additions & 0 deletions cmd/postgres_exporter/postgres_exporter.go
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Original file line number Diff line number Diff line change
Expand Up @@ -251,6 +251,9 @@ var builtinMetricMaps = map[string]intermediateMetricMap{
"state": {LABEL, "connection state", nil, semver.MustParseRange(">=9.2.0")},
"usename": {LABEL, "connection usename", nil, nil},
"application_name": {LABEL, "connection application_name", nil, nil},
"backend_type": {LABEL, "connection backend_type", nil, nil},
"wait_event_type": {LABEL, "connection wait_event_type", nil, nil},
"wait_event": {LABEL, "connection wait_event", nil, nil},
"count": {GAUGE, "number of connections in this state", nil, nil},
"max_tx_duration": {GAUGE, "max duration in seconds any active transaction has been running", nil, nil},
},
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9 changes: 8 additions & 1 deletion cmd/postgres_exporter/queries.go
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Expand Up @@ -115,6 +115,9 @@ var queryOverrides = map[string][]OverrideQuery{
tmp.state,
tmp2.usename,
tmp2.application_name,
tmp2.backend_type,
tmp2.wait_event_type,
tmp2.wait_event,
COALESCE(count,0) as count,
COALESCE(max_tx_duration,0) as max_tx_duration
FROM
Expand All @@ -133,9 +136,13 @@ var queryOverrides = map[string][]OverrideQuery{
state,
usename,
application_name,
backend_type,
wait_event_type,
wait_event,
count(*) AS count,
MAX(EXTRACT(EPOCH FROM now() - xact_start))::float AS max_tx_duration
FROM pg_stat_activity GROUP BY datname,state,usename,application_name) AS tmp2
FROM pg_stat_activity
GROUP BY datname,state,usename,application_name,backend_type,wait_event_type,wait_event) AS tmp2
ON tmp.state = tmp2.state AND pg_database.datname = tmp2.datname
`,
},
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