69 lines
1.9 KiB
Go
69 lines
1.9 KiB
Go
|
// Licensed to Elasticsearch B.V. under one or more contributor
|
||
|
|
// license agreements. See the NOTICE file distributed with
|
||
|
|
// this work for additional information regarding copyright
|
||
|
|
// ownership. Elasticsearch B.V. licenses this file to you under
|
||
|
|
// the Apache License, Version 2.0 (the "License"); you may
|
||
|
|
// not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing,
|
||
|
|
// software distributed under the License is distributed on an
|
||
|
|
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
||
|
|
// KIND, either express or implied. See the License for the
|
||
|
|
// specific language governing permissions and limitations
|
||
|
|
// under the License.
|
||
|
|
|
||
|
|
//+build linux,cgo
|
||
|
|
|
||
|
|
package instance
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
|
||
|
|
"github.com/coreos/go-systemd/sdjournal"
|
||
|
|
|
||
|
|
"github.com/elastic/beats/libbeat/monitoring"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
metrics *monitoring.Registry
|
||
|
|
journals map[string]*sdjournal.Journal
|
||
|
|
)
|
||
|
|
|
||
|
|
// SetupJournalMetrics initializes and registers monitoring functions.
|
||
|
|
func SetupJournalMetrics() {
|
||
|
|
metrics = monitoring.Default.NewRegistry("journalbeat")
|
||
|
|
journals = make(map[string]*sdjournal.Journal)
|
||
|
|
|
||
|
|
monitoring.NewFunc(metrics, "journals", reportJournalSizes, monitoring.Report)
|
||
|
|
}
|
||
|
|
|
||
|
|
// AddJournalToMonitor adds a new journal which has to be monitored.
|
||
|
|
func AddJournalToMonitor(path string, journal *sdjournal.Journal) {
|
||
|
|
journals[path] = journal
|
||
|
|
}
|
||
|
|
|
||
|
|
// StopMonitoringJournal stops monitoring the journal under the path.
|
||
|
|
func StopMonitoringJournal(path string) {
|
||
|
|
delete(journals, path)
|
||
|
|
}
|
||
|
|
|
||
|
|
func reportJournalSizes(m monitoring.Mode, V monitoring.Visitor) {
|
||
|
|
i := 0
|
||
|
|
for path, journal := range journals {
|
||
|
|
s, err := journal.GetUsage()
|
||
|
|
if err != nil {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
|
||
|
|
ns := fmt.Sprintf("journal_%d", i)
|
||
|
|
monitoring.ReportNamespace(V, ns, func() {
|
||
|
|
monitoring.ReportString(V, "path", path)
|
||
|
|
monitoring.ReportInt(V, "size_in_bytes", int64(s))
|
||
|
|
})
|
||
|
|
i++
|
||
|
|
}
|
||
|
|
}
|