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// SPDX-License-Identifier: GPL-3.0-or-later
package mongo
import (
"fmt"
"strings"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
)
func (m *Mongo) collectDbStats(mx map[string]int64) error {
if m.dbSelector == nil {
m.Debug("'database' selector not set, skip collecting database statistics")
return nil
}
allDBs, err := m.conn.listDatabaseNames()
if err != nil {
return fmt.Errorf("cannot get database names: %v", err)
}
m.Debugf("all databases on the server: '%v'", allDBs)
var dbs []string
for _, db := range allDBs {
if m.dbSelector.MatchString(db) {
dbs = append(dbs, db)
}
}
if len(allDBs) != len(dbs) {
m.Debugf("databases remaining after filtering: %v", dbs)
}
seen := make(map[string]bool)
for _, db := range dbs {
s, err := m.conn.dbStats(db)
if err != nil {
return fmt.Errorf("dbStats command failed: %v", err)
}
seen[db] = true
mx["database_"+db+"_collections"] = s.Collections
mx["database_"+db+"_views"] = s.Views
mx["database_"+db+"_indexes"] = s.Indexes
mx["database_"+db+"_documents"] = s.Objects
mx["database_"+db+"_data_size"] = s.DataSize
mx["database_"+db+"_index_size"] = s.IndexSize
mx["database_"+db+"_storage_size"] = s.StorageSize
}
for db := range seen {
if !m.databases[db] {
m.databases[db] = true
m.Debugf("new database '%s': creating charts", db)
m.addDatabaseCharts(db)
}
}
for db := range m.databases {
if !seen[db] {
delete(m.databases, db)
m.Debugf("stale database '%s': removing charts", db)
m.removeDatabaseCharts(db)
}
}
return nil
}
func (m *Mongo) addDatabaseCharts(name string) {
charts := chartsTmplDatabase.Copy()
for _, chart := range *charts {
chart.ID = fmt.Sprintf(chart.ID, name)
chart.Labels = []module.Label{
{Key: "database", Value: name},
}
for _, dim := range chart.Dims {
dim.ID = fmt.Sprintf(dim.ID, name)
}
}
if err := m.Charts().Add(*charts...); err != nil {
m.Warning(err)
}
}
func (m *Mongo) removeDatabaseCharts(name string) {
px := fmt.Sprintf("%s%s_", chartPxDatabase, name)
for _, chart := range *m.Charts() {
if strings.HasPrefix(chart.ID, px) {
chart.MarkRemove()
chart.MarkNotCreated()
}
}
}
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