Add support for exchanges to RabbitMQ input (#3619)
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kerams
Daniel Nelson
parent
57138e0668
commit
bde4d004df
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@ -40,6 +40,10 @@ For additional details reference the [RabbitMQ Management HTTP Stats](https://cd
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## A list of queues to gather as the rabbitmq_queue measurement. If not
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## specified, metrics for all queues are gathered.
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# queues = ["telegraf"]
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## A list of exchanges to gather as the rabbitmq_exchange measurement. If not
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## specified, metrics for all exchanges are gathered.
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# exchanges = ["telegraf"]
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```
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### Measurements & Fields:
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@ -95,6 +99,10 @@ For additional details reference the [RabbitMQ Management HTTP Stats](https://cd
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- messages_redeliver_rate (float, messages per second)
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- messages_unack (integer, count)
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- rabbitmq_exchange
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- messages_publish_in (int, count)
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- messages_publish_out (int, count)
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### Tags:
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- All measurements have the following tags:
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@ -114,6 +122,15 @@ For additional details reference the [RabbitMQ Management HTTP Stats](https://cd
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- durable
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- auto_delete
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- rabbitmq_exchange
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- url
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- exchange
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- type
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- vhost
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- internal
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- durable
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- auto_delete
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### Sample Queries:
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Message rates for the entire node can be calculated from total message counts. For instance, to get the rate of messages published per minute, use this query:
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@ -129,4 +146,5 @@ FROM rabbitmq_overview WHERE time > now() - 10m GROUP BY time(1m)
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rabbitmq_queue,url=http://amqp.example.org:15672,queue=telegraf,vhost=influxdb,node=rabbit@amqp.example.org,durable=true,auto_delete=false,host=amqp.example.org messages_deliver_get=0i,messages_publish=329i,messages_publish_rate=0.2,messages_redeliver_rate=0,message_bytes_ready=0i,message_bytes_unacked=0i,messages_deliver=329i,messages_unack=0i,consumers=1i,idle_since="",messages=0i,messages_deliver_rate=0.2,messages_deliver_get_rate=0.2,messages_redeliver=0i,memory=43032i,message_bytes_ram=0i,messages_ack=329i,messages_ready=0i,messages_ack_rate=0.2,consumer_utilisation=1,message_bytes=0i,message_bytes_persist=0i 1493684035000000000
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rabbitmq_overview,url=http://amqp.example.org:15672,host=amqp.example.org channels=2i,consumers=1i,exchanges=17i,messages_acked=329i,messages=0i,messages_ready=0i,messages_unacked=0i,connections=2i,queues=1i,messages_delivered=329i,messages_published=329i 1493684035000000000
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rabbitmq_node,url=http://amqp.example.org:15672,node=rabbit@amqp.example.org,host=amqp.example.org fd_total=1024i,fd_used=32i,mem_limit=8363329126i,sockets_total=829i,disk_free=8175935488i,disk_free_limit=50000000i,mem_used=58771080i,proc_total=1048576i,proc_used=267i,run_queue=0i,sockets_used=2i 149368403500000000
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rabbitmq_exchange,url=http://amqp.example.org:15672,exchange=telegraf,type=fanout,vhost=influxdb,internal=false,durable=true,auto_delete=false,host=amqp.example.org messages_publish_in=2i,messages_publish_out=1i 149368403500000000
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```
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@ -50,6 +50,7 @@ type RabbitMQ struct {
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Nodes []string
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Queues []string
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Exchanges []string
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Client *http.Client
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}
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@ -78,6 +79,8 @@ type MessageStats struct {
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PublishDetails Details `json:"publish_details"`
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Redeliver int64
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RedeliverDetails Details `json:"redeliver_details"`
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PublishIn int64 `json:"publish_in"`
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PublishOut int64 `json:"publish_out"`
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}
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// ObjectTotals ...
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@ -133,10 +136,20 @@ type Node struct {
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SocketsUsed int64 `json:"sockets_used"`
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}
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type Exchange struct {
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Name string
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MessageStats `json:"message_stats"`
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Type string
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Internal bool
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Vhost string
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Durable bool
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AutoDelete bool `json:"auto_delete"`
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}
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// gatherFunc ...
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type gatherFunc func(r *RabbitMQ, acc telegraf.Accumulator)
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var gatherFunctions = []gatherFunc{gatherOverview, gatherNodes, gatherQueues}
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var gatherFunctions = []gatherFunc{gatherOverview, gatherNodes, gatherQueues, gatherExchanges}
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var sampleConfig = `
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## Management Plugin url. (default: http://localhost:15672)
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@ -171,6 +184,10 @@ var sampleConfig = `
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## A list of queues to gather as the rabbitmq_queue measurement. If not
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## specified, metrics for all queues are gathered.
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# queues = ["telegraf"]
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## A list of exchanges to gather as the rabbitmq_exchange measurement. If not
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## specified, metrics for all exchanges are gathered.
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# exchanges = ["telegraf"]
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`
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// SampleConfig ...
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@ -374,6 +391,40 @@ func gatherQueues(r *RabbitMQ, acc telegraf.Accumulator) {
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}
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}
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func gatherExchanges(r *RabbitMQ, acc telegraf.Accumulator) {
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// Gather information about exchanges
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exchanges := make([]Exchange, 0)
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err := r.requestJSON("/api/exchanges", &exchanges)
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if err != nil {
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acc.AddError(err)
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return
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}
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for _, exchange := range exchanges {
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if !r.shouldGatherExchange(exchange) {
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continue
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}
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tags := map[string]string{
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"url": r.URL,
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"exchange": exchange.Name,
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"type": exchange.Type,
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"vhost": exchange.Vhost,
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"internal": strconv.FormatBool(exchange.Internal),
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"durable": strconv.FormatBool(exchange.Durable),
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"auto_delete": strconv.FormatBool(exchange.AutoDelete),
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}
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acc.AddFields(
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"rabbitmq_exchange",
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map[string]interface{}{
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"messages_publish_in": exchange.MessageStats.PublishIn,
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"messages_publish_out": exchange.MessageStats.PublishOut,
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},
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tags,
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)
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}
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}
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func (r *RabbitMQ) shouldGatherNode(node Node) bool {
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if len(r.Nodes) == 0 {
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return true
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@ -402,6 +453,20 @@ func (r *RabbitMQ) shouldGatherQueue(queue Queue) bool {
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return false
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}
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func (r *RabbitMQ) shouldGatherExchange(exchange Exchange) bool {
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if len(r.Exchanges) == 0 {
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return true
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}
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for _, name := range r.Exchanges {
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if name == exchange.Name {
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return true
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}
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}
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return false
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}
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func init() {
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inputs.Add("rabbitmq", func() telegraf.Input {
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return &RabbitMQ{
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@ -374,6 +374,102 @@ const sampleQueuesResponse = `
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]
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`
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const sampleExchangesResponse = `
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[
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{
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"arguments": { },
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"internal": false,
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"auto_delete": false,
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"durable": true,
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"type": "direct",
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"vhost": "\/",
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"name": ""
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},
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{
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"message_stats": {
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"publish_in_details": {
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"rate": 0
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},
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"publish_in": 2,
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"publish_out_details": {
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"rate": 0
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},
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"publish_out": 1
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},
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"arguments": { },
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"internal": false,
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"auto_delete": false,
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"durable": true,
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"type": "fanout",
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"vhost": "\/",
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"name": "telegraf"
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},
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{
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"arguments": { },
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"internal": false,
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"auto_delete": false,
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"durable": true,
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"type": "direct",
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"vhost": "\/",
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"name": "amq.direct"
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},
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{
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"arguments": { },
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"internal": false,
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"auto_delete": false,
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"durable": true,
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"type": "fanout",
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"vhost": "\/",
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"name": "amq.fanout"
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},
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{
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"arguments": { },
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"internal": false,
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"auto_delete": false,
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"durable": true,
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"type": "headers",
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"vhost": "\/",
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"name": "amq.headers"
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},
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{
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"arguments": { },
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"internal": false,
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"auto_delete": false,
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"durable": true,
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"type": "headers",
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"vhost": "\/",
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"name": "amq.match"
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},
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{
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"arguments": { },
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"internal": true,
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"auto_delete": false,
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"durable": true,
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"type": "topic",
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"vhost": "\/",
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"name": "amq.rabbitmq.log"
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},
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{
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"arguments": { },
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"internal": true,
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"auto_delete": false,
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"durable": true,
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"type": "topic",
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"vhost": "\/",
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"name": "amq.rabbitmq.trace"
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},
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{
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"arguments": { },
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"internal": false,
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"auto_delete": false,
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"durable": true,
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"type": "topic",
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"vhost": "\/",
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"name": "amq.topic"
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}
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]
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`
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func TestRabbitMQGeneratesMetrics(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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var rsp string
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@ -385,6 +481,8 @@ func TestRabbitMQGeneratesMetrics(t *testing.T) {
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rsp = sampleNodesResponse
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case "/api/queues":
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rsp = sampleQueuesResponse
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case "/api/exchanges":
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rsp = sampleExchangesResponse
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default:
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panic("Cannot handle request")
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}
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@ -441,4 +539,13 @@ func TestRabbitMQGeneratesMetrics(t *testing.T) {
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}
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assert.True(t, acc.HasMeasurement("rabbitmq_queue"))
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exchangeIntMetrics := []string{
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"messages_publish_in",
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"messages_publish_out",
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}
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for _, metric := range exchangeIntMetrics {
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assert.True(t, acc.HasInt64Field("rabbitmq_exchange", metric))
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}
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}
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