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add group command in collect.info_schema.processlist #442

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add group command in collect.info_schema.processlist #442

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8235838
add group command in collect.info_schema.processlist
hctech Nov 4, 2019
c8f6ec9
fix processes count
hctech Nov 4, 2019
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36 changes: 26 additions & 10 deletions collector/info_schema_processlist.go
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Original file line number Diff line number Diff line change
Expand Up @@ -70,11 +70,11 @@ var (
processesByUserDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, informationSchema, "processes_by_user"),
"The number of processes by user.",
[]string{"mysql_user"}, nil)
[]string{"mysql_user", "command"}, nil)
processesByHostDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, informationSchema, "processes_by_host"),
"The number of processes by host.",
[]string{"client_host"}, nil)
[]string{"client_host", "command"}, nil)
)

// whitelist for connection/process states in SHOW PROCESSLIST
Expand Down Expand Up @@ -198,8 +198,8 @@ func (ScrapeProcesslist) Scrape(ctx context.Context, db *sql.DB, ch chan<- prome
)
stateCounts := make(map[string]uint32, len(threadStateCounterMap))
stateTime := make(map[string]uint32, len(threadStateCounterMap))
hostCount := make(map[string]uint32)
userCount := make(map[string]uint32)
hostCount := make(map[string]map[string]uint32)
userCount := make(map[string]map[string]uint32)
for k, v := range threadStateCounterMap {
stateCounts[k] = v
stateTime[k] = v
Expand All @@ -213,19 +213,35 @@ func (ScrapeProcesslist) Scrape(ctx context.Context, db *sql.DB, ch chan<- prome
realState := deriveThreadState(command, state)
stateCounts[realState] += processes
stateTime[realState] += time
hostCount[host] = hostCount[host] + processes
userCount[user] = userCount[user] + processes
if _, exits := userCount[user]; exits {
userCount[user][command] = userCount[user][command] + processes
} else {
userCommandCount := make(map[string]uint32)
userCommandCount[command] = processes
userCount[user] = userCommandCount
}
if _, exits := hostCount[host]; exits {
hostCount[host][command] = hostCount[host][command] + processes
} else {
hostCommandCount := make(map[string]uint32)
hostCommandCount[command] = processes
hostCount[host] = hostCommandCount
}
}

if *processesByHostFlag {
for host, processes := range hostCount {
ch <- prometheus.MustNewConstMetric(processesByHostDesc, prometheus.GaugeValue, float64(processes), host)
for host, _ := range hostCount {
for command, processes := range hostCount[host] {
ch <- prometheus.MustNewConstMetric(processesByHostDesc, prometheus.GaugeValue, float64(processes), host, command)
}
}
}

if *processesByUserFlag {
for user, processes := range userCount {
ch <- prometheus.MustNewConstMetric(processesByUserDesc, prometheus.GaugeValue, float64(processes), user)
for user, _ := range userCount {
for command, processes := range userCount[user] {
ch <- prometheus.MustNewConstMetric(processesByUserDesc, prometheus.GaugeValue, float64(processes), user, command)
}
}
}

Expand Down