85 lines
2.4 KiB
Go
85 lines
2.4 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 keyspace
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import (
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"time"
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"github.com/elastic/beats/libbeat/common"
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"github.com/elastic/beats/libbeat/logp"
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"github.com/elastic/beats/metricbeat/mb"
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"github.com/elastic/beats/metricbeat/mb/parse"
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"github.com/elastic/beats/metricbeat/module/redis"
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rd "github.com/garyburd/redigo/redis"
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)
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var (
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debugf = logp.MakeDebug("redis-keyspace")
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)
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func init() {
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mb.Registry.MustAddMetricSet("redis", "keyspace", New,
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mb.WithHostParser(parse.PassThruHostParser),
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mb.DefaultMetricSet(),
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)
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}
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// MetricSet for fetching Redis server information and statistics.
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type MetricSet struct {
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mb.BaseMetricSet
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pool *rd.Pool
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}
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// New creates new instance of MetricSet
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func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
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// Unpack additional configuration options.
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config := struct {
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IdleTimeout time.Duration `config:"idle_timeout"`
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Network string `config:"network"`
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MaxConn int `config:"maxconn" validate:"min=1"`
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Password string `config:"password"`
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}{
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Network: "tcp",
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MaxConn: 10,
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Password: "",
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}
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err := base.Module().UnpackConfig(&config)
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if err != nil {
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return nil, err
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}
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return &MetricSet{
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BaseMetricSet: base,
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pool: redis.CreatePool(base.Host(), config.Password, config.Network,
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config.MaxConn, config.IdleTimeout, base.Module().Config().Timeout),
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}, nil
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}
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// Fetch fetches metrics from Redis by issuing the INFO command.
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func (m *MetricSet) Fetch() ([]common.MapStr, error) {
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// Fetch default INFO.
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info, err := redis.FetchRedisInfo("keyspace", m.pool.Get())
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if err != nil {
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return nil, err
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}
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debugf("Redis INFO from %s: %+v", m.Host(), info)
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return eventsMapping(info), nil
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}
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