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- Polls a set of NSQD REST endpoints and collects counters for all topics, channels, and clients Signed-off-by: Jeff Nickoloff <jeff@allingeek.com> closes #492
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package all | ||
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import ( | ||
_ "github.com/influxdb/telegraf/plugins/aerospike" | ||
_ "github.com/influxdb/telegraf/plugins/apache" | ||
_ "github.com/influxdb/telegraf/plugins/bcache" | ||
_ "github.com/influxdb/telegraf/plugins/disque" | ||
_ "github.com/influxdb/telegraf/plugins/elasticsearch" | ||
_ "github.com/influxdb/telegraf/plugins/exec" | ||
_ "github.com/influxdb/telegraf/plugins/haproxy" | ||
_ "github.com/influxdb/telegraf/plugins/httpjson" | ||
_ "github.com/influxdb/telegraf/plugins/influxdb" | ||
_ "github.com/influxdb/telegraf/plugins/jolokia" | ||
_ "github.com/influxdb/telegraf/plugins/kafka_consumer" | ||
_ "github.com/influxdb/telegraf/plugins/leofs" | ||
_ "github.com/influxdb/telegraf/plugins/lustre2" | ||
_ "github.com/influxdb/telegraf/plugins/mailchimp" | ||
_ "github.com/influxdb/telegraf/plugins/memcached" | ||
_ "github.com/influxdb/telegraf/plugins/mongodb" | ||
_ "github.com/influxdb/telegraf/plugins/mysql" | ||
_ "github.com/influxdb/telegraf/plugins/nginx" | ||
_ "github.com/influxdb/telegraf/plugins/nsq" | ||
_ "github.com/influxdb/telegraf/plugins/phpfpm" | ||
_ "github.com/influxdb/telegraf/plugins/ping" | ||
_ "github.com/influxdb/telegraf/plugins/postgresql" | ||
_ "github.com/influxdb/telegraf/plugins/procstat" | ||
_ "github.com/influxdb/telegraf/plugins/prometheus" | ||
_ "github.com/influxdb/telegraf/plugins/puppetagent" | ||
_ "github.com/influxdb/telegraf/plugins/rabbitmq" | ||
_ "github.com/influxdb/telegraf/plugins/redis" | ||
_ "github.com/influxdb/telegraf/plugins/rethinkdb" | ||
_ "github.com/influxdb/telegraf/plugins/statsd" | ||
_ "github.com/influxdb/telegraf/plugins/system" | ||
_ "github.com/influxdb/telegraf/plugins/trig" | ||
_ "github.com/influxdb/telegraf/plugins/twemproxy" | ||
_ "github.com/influxdb/telegraf/plugins/zfs" | ||
_ "github.com/influxdb/telegraf/plugins/zookeeper" | ||
) |
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// The MIT License (MIT) | ||
// | ||
// Copyright (c) 2015 Jeff Nickoloff (jeff@allingeek.com) | ||
// | ||
// Permission is hereby granted, free of charge, to any person obtaining a copy | ||
// of this software and associated documentation files (the "Software"), to deal | ||
// in the Software without restriction, including without limitation the rights | ||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
// copies of the Software, and to permit persons to whom the Software is | ||
// furnished to do so, subject to the following conditions: | ||
// | ||
// The above copyright notice and this permission notice shall be included in all | ||
// copies or substantial portions of the Software. | ||
// | ||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
// SOFTWARE. | ||
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package nsq | ||
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import ( | ||
"encoding/json" | ||
"fmt" | ||
"net/http" | ||
"net/url" | ||
"strconv" | ||
"sync" | ||
"time" | ||
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"github.com/influxdb/telegraf/plugins" | ||
) | ||
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// Might add Lookupd endpoints for cluster discovery | ||
type NSQ struct { | ||
Endpoints []string | ||
} | ||
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var sampleConfig = ` | ||
# An array of NSQD HTTP API endpoints | ||
endpoints = ["http://localhost:4151","http://otherhost:4151"] | ||
` | ||
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const ( | ||
requestPattern = `%s/stats?format=json` | ||
) | ||
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func init() { | ||
plugins.Add("nsq", func() plugins.Plugin { | ||
return &NSQ{} | ||
}) | ||
} | ||
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func (n *NSQ) SampleConfig() string { | ||
return sampleConfig | ||
} | ||
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func (n *NSQ) Description() string { | ||
return "Read NSQ topic and channel statistics." | ||
} | ||
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func (n *NSQ) Gather(acc plugins.Accumulator) error { | ||
var wg sync.WaitGroup | ||
var outerr error | ||
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for _, e := range n.Endpoints { | ||
wg.Add(1) | ||
go func(e string) { | ||
defer wg.Done() | ||
outerr = n.gatherEndpoint(e, acc) | ||
}(e) | ||
} | ||
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wg.Wait() | ||
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return outerr | ||
} | ||
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var tr = &http.Transport{ | ||
ResponseHeaderTimeout: time.Duration(3 * time.Second), | ||
} | ||
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var client = &http.Client{Transport: tr} | ||
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func (n *NSQ) gatherEndpoint(e string, acc plugins.Accumulator) error { | ||
u, err := buildURL(e) | ||
if err != nil { | ||
return err | ||
} | ||
r, err := client.Get(u.String()) | ||
if err != nil { | ||
return fmt.Errorf("Error while polling %s: %s", u.String(), err) | ||
} | ||
defer r.Body.Close() | ||
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if r.StatusCode != http.StatusOK { | ||
return fmt.Errorf("%s returned HTTP status %s", u.String(), r.Status) | ||
} | ||
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s := &NSQStats{} | ||
err = json.NewDecoder(r.Body).Decode(s) | ||
if err != nil { | ||
return fmt.Errorf(`Error parsing response: %s`, err) | ||
} | ||
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tags := map[string]string{ | ||
`server_host`: u.Host, | ||
`server_version`: s.Data.Version, | ||
} | ||
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if s.Data.Health == `OK` { | ||
acc.Add(`nsq_server_count`, int64(1), tags) | ||
} else { | ||
acc.Add(`nsq_server_count`, int64(0), tags) | ||
} | ||
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acc.Add(`nsq_server_topic_count`, int64(len(s.Data.Topics)), tags) | ||
for _, t := range s.Data.Topics { | ||
topicStats(t, acc, u.Host, s.Data.Version) | ||
} | ||
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return nil | ||
} | ||
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func buildURL(e string) (*url.URL, error) { | ||
u := fmt.Sprintf(requestPattern, e) | ||
addr, err := url.Parse(u) | ||
if err != nil { | ||
return nil, fmt.Errorf("Unable to parse address '%s': %s", u, err) | ||
} | ||
return addr, nil | ||
} | ||
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func topicStats(t TopicStats, acc plugins.Accumulator, host, version string) { | ||
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// per topic overall (tag: name, paused, channel count) | ||
tags := map[string]string{ | ||
`server_host`: host, | ||
`server_version`: version, | ||
`topic`: t.Name, | ||
} | ||
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acc.Add(`nsq_topic_depth`, t.Depth, tags) | ||
acc.Add(`nsq_topic_backend_depth`, t.BackendDepth, tags) | ||
acc.Add(`nsq_topic_message_count`, t.MessageCount, tags) | ||
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acc.Add(`nsq_topic_channel_count`, int64(len(t.Channels)), tags) | ||
for _, c := range t.Channels { | ||
channelStats(c, acc, host, version, t.Name) | ||
} | ||
} | ||
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func channelStats(c ChannelStats, acc plugins.Accumulator, host, version, topic string) { | ||
tags := map[string]string{ | ||
`server_host`: host, | ||
`server_version`: version, | ||
`topic`: topic, | ||
`channel`: c.Name, | ||
} | ||
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acc.Add("nsq_channel_depth", c.Depth, tags) | ||
acc.Add("nsq_channel_backend_depth", c.BackendDepth, tags) | ||
acc.Add("nsq_channel_inflight_count", c.InFlightCount, tags) | ||
acc.Add("nsq_channel_deferred_count", c.DeferredCount, tags) | ||
acc.Add("nsq_channel_message_count", c.MessageCount, tags) | ||
acc.Add("nsq_channel_requeue_count", c.RequeueCount, tags) | ||
acc.Add("nsq_channel_timeout_count", c.TimeoutCount, tags) | ||
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acc.Add("nsq_channel_client_count", int64(len(c.Clients)), tags) | ||
for _, cl := range c.Clients { | ||
clientStats(cl, acc, host, version, topic, c.Name) | ||
} | ||
} | ||
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func clientStats(c ClientStats, acc plugins.Accumulator, host, version, topic, channel string) { | ||
tags := map[string]string{ | ||
`server_host`: host, | ||
`server_version`: version, | ||
`topic`: topic, | ||
`channel`: channel, | ||
`client_name`: c.Name, | ||
`client_id`: c.ID, | ||
`client_hostname`: c.Hostname, | ||
`client_version`: c.Version, | ||
`client_address`: c.RemoteAddress, | ||
`client_user_agent`: c.UserAgent, | ||
`client_tls`: strconv.FormatBool(c.TLS), | ||
`client_snappy`: strconv.FormatBool(c.Snappy), | ||
`client_deflate`: strconv.FormatBool(c.Deflate), | ||
} | ||
acc.Add("nsq_client_ready_count", c.ReadyCount, tags) | ||
acc.Add("nsq_client_inflight_count", c.InFlightCount, tags) | ||
acc.Add("nsq_client_message_count", c.MessageCount, tags) | ||
acc.Add("nsq_client_finish_count", c.FinishCount, tags) | ||
acc.Add("nsq_client_requeue_count", c.RequeueCount, tags) | ||
} | ||
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type NSQStats struct { | ||
Code int64 `json:"status_code"` | ||
Txt string `json:"status_txt"` | ||
Data NSQStatsData `json:"data"` | ||
} | ||
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type NSQStatsData struct { | ||
Version string `json:"version"` | ||
Health string `json:"health"` | ||
StartTime int64 `json:"start_time"` | ||
Topics []TopicStats `json:"topics"` | ||
} | ||
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// e2e_processing_latency is not modeled | ||
type TopicStats struct { | ||
Name string `json:"topic_name"` | ||
Depth int64 `json:"depth"` | ||
BackendDepth int64 `json:"backend_depth"` | ||
MessageCount int64 `json:"message_count"` | ||
Paused bool `json:"paused"` | ||
Channels []ChannelStats `json:"channels"` | ||
} | ||
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// e2e_processing_latency is not modeled | ||
type ChannelStats struct { | ||
Name string `json:"channel_name"` | ||
Depth int64 `json:"depth"` | ||
BackendDepth int64 `json:"backend_depth"` | ||
InFlightCount int64 `json:"in_flight_count"` | ||
DeferredCount int64 `json:"deferred_count"` | ||
MessageCount int64 `json:"message_count"` | ||
RequeueCount int64 `json:"requeue_count"` | ||
TimeoutCount int64 `json:"timeout_count"` | ||
Paused bool `json:"paused"` | ||
Clients []ClientStats `json:"clients"` | ||
} | ||
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type ClientStats struct { | ||
Name string `json:"name"` | ||
ID string `json:"client_id"` | ||
Hostname string `json:"hostname"` | ||
Version string `json:"version"` | ||
RemoteAddress string `json:"remote_address"` | ||
State int64 `json:"state"` | ||
ReadyCount int64 `json:"ready_count"` | ||
InFlightCount int64 `json:"in_flight_count"` | ||
MessageCount int64 `json:"message_count"` | ||
FinishCount int64 `json:"finish_count"` | ||
RequeueCount int64 `json:"requeue_count"` | ||
ConnectTime int64 `json:"connect_ts"` | ||
SampleRate int64 `json:"sample_rate"` | ||
Deflate bool `json:"deflate"` | ||
Snappy bool `json:"snappy"` | ||
UserAgent string `json:"user_agent"` | ||
TLS bool `json:"tls"` | ||
TLSCipherSuite string `json:"tls_cipher_suite"` | ||
TLSVersion string `json:"tls_version"` | ||
TLSNegotiatedProtocol string `json:"tls_negotiated_protocol"` | ||
TLSNegotiatedProtocolIsMutual bool `json:"tls_negotiated_protocol_is_mutual"` | ||
} |
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