80 lines
1.9 KiB
Go
80 lines
1.9 KiB
Go
// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package stats
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import (
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"bufio"
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"net"
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"strings"
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"github.com/elastic/beats/libbeat/common"
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"github.com/elastic/beats/libbeat/common/cfgwarn"
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"github.com/elastic/beats/metricbeat/mb"
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)
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func init() {
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mb.Registry.MustAddMetricSet("memcached", "stats", New,
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mb.DefaultMetricSet(),
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)
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}
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type MetricSet struct {
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mb.BaseMetricSet
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}
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func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
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cfgwarn.Beta("The memcached stats metricset is beta")
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return &MetricSet{
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BaseMetricSet: base,
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}, nil
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}
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func (m *MetricSet) Fetch() (common.MapStr, error) {
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conn, err := net.DialTimeout("tcp", m.Host(), m.Module().Config().Timeout)
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if err != nil {
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return nil, err
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}
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defer conn.Close()
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_, err = conn.Write([]byte("stats\n"))
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if err != nil {
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return nil, err
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}
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scanner := bufio.NewScanner(conn)
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data := map[string]interface{}{}
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for scanner.Scan() {
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text := scanner.Text()
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if text == "END" {
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break
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}
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// Split entries which look like: STAT time 1488291730
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entries := strings.Split(text, " ")
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if len(entries) == 3 {
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data[entries[1]] = entries[2]
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}
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}
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event, _ := schema.Apply(data)
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return event, nil
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}
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