Add input plugin for McRouter (#4077)
This commit is contained in:
Craig Thayer
Daniel Nelson
parent
f094f83da5
commit
83345ec2b3
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@ -50,6 +50,7 @@ import (
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_ "github.com/influxdata/telegraf/plugins/inputs/logparser"
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_ "github.com/influxdata/telegraf/plugins/inputs/lustre2"
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_ "github.com/influxdata/telegraf/plugins/inputs/mailchimp"
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_ "github.com/influxdata/telegraf/plugins/inputs/mcrouter"
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_ "github.com/influxdata/telegraf/plugins/inputs/memcached"
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_ "github.com/influxdata/telegraf/plugins/inputs/mesos"
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_ "github.com/influxdata/telegraf/plugins/inputs/minecraft"
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@ -0,0 +1,103 @@
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# Mcrouter Input Plugin
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This plugin gathers statistics data from a Mcrouter server.
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### Configuration:
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```toml
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# Read metrics from one or many mcrouter servers.
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[[inputs.mcrouter]]
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## An array of address to gather stats about. Specify an ip or hostname
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## with port. ie tcp://localhost:11211, tcp://10.0.0.1:11211, etc.
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servers = ["tcp://localhost:11211", "unix:///var/run/mcrouter.sock"]
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## Timeout for metric collections from all servers. Minimum timeout is "1s".
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# timeout = "5s"
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```
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### Measurements & Fields:
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The fields from this plugin are gathered in the *mcrouter* measurement.
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Description of gathered fields can be found [here](https://github.com/facebook/mcrouter/wiki/Stats-list).
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Fields:
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* uptime
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* num_servers
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* num_servers_new
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* num_servers_up
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* num_servers_down
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* num_servers_closed
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* num_clients
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* num_suspect_servers
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* destination_batches_sum
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* destination_requests_sum
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* outstanding_route_get_reqs_queued
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* outstanding_route_update_reqs_queued
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* outstanding_route_get_avg_queue_size
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* outstanding_route_update_avg_queue_size
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* outstanding_route_get_avg_wait_time_sec
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* outstanding_route_update_avg_wait_time_sec
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* retrans_closed_connections
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* destination_pending_reqs
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* destination_inflight_reqs
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* destination_batch_size
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* asynclog_requests
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* proxy_reqs_processing
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* proxy_reqs_waiting
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* client_queue_notify_period
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* rusage_system
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* rusage_user
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* ps_num_minor_faults
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* ps_num_major_faults
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* ps_user_time_sec
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* ps_system_time_sec
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* ps_vsize
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* ps_rss
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* fibers_allocated
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* fibers_pool_size
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* fibers_stack_high_watermark
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* successful_client_connections
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* duration_us
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* destination_max_pending_reqs
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* destination_max_inflight_reqs
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* retrans_per_kbyte_max
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* cmd_get_count
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* cmd_delete_out
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* cmd_lease_get
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* cmd_set
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* cmd_get_out_all
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* cmd_get_out
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* cmd_lease_set_count
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* cmd_other_out_all
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* cmd_lease_get_out
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* cmd_set_count
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* cmd_lease_set_out
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* cmd_delete_count
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* cmd_other
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* cmd_delete
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* cmd_get
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* cmd_lease_set
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* cmd_set_out
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* cmd_lease_get_count
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* cmd_other_out
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* cmd_lease_get_out_all
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* cmd_set_out_all
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* cmd_other_count
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* cmd_delete_out_all
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* cmd_lease_set_out_all
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### Tags:
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* Mcrouter measurements have the following tags:
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- server (the host name from which metrics are gathered)
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### Example Output:
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```
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$ ./telegraf --config telegraf.conf --input-filter mcrouter --test
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mcrouter,server=localhost:11211 uptime=166,num_servers=1,num_servers_new=1,num_servers_up=0,num_servers_down=0,num_servers_closed=0,num_clients=1,num_suspect_servers=0,destination_batches_sum=0,destination_requests_sum=0,outstanding_route_get_reqs_queued=0,outstanding_route_update_reqs_queued=0,outstanding_route_get_avg_queue_size=0,outstanding_route_update_avg_queue_size=0,outstanding_route_get_avg_wait_time_sec=0,outstanding_route_update_avg_wait_time_sec=0,retrans_closed_connections=0,destination_pending_reqs=0,destination_inflight_reqs=0,destination_batch_size=0,asynclog_requests=0,proxy_reqs_processing=1,proxy_reqs_waiting=0,client_queue_notify_period=0,rusage_system=0.040966,rusage_user=0.020483,ps_num_minor_faults=2490,ps_num_major_faults=11,ps_user_time_sec=0.02,ps_system_time_sec=0.04,ps_vsize=697741312,ps_rss=10563584,fibers_allocated=0,fibers_pool_size=0,fibers_stack_high_watermark=0,successful_client_connections=18,duration_us=0,destination_max_pending_reqs=0,destination_max_inflight_reqs=0,retrans_per_kbyte_max=0,cmd_get_count=0,cmd_delete_out=0,cmd_lease_get=0,cmd_set=0,cmd_get_out_all=0,cmd_get_out=0,cmd_lease_set_count=0,cmd_other_out_all=0,cmd_lease_get_out=0,cmd_set_count=0,cmd_lease_set_out=0,cmd_delete_count=0,cmd_other=0,cmd_delete=0,cmd_get=0,cmd_lease_set=0,cmd_set_out=0,cmd_lease_get_count=0,cmd_other_out=0,cmd_lease_get_out_all=0,cmd_set_out_all=0,cmd_other_count=0,cmd_delete_out_all=0,cmd_lease_set_out_all=0 1453831884664956455
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```
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@ -0,0 +1,286 @@
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package mcrouter
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import (
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"bufio"
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"context"
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"fmt"
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"net"
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"net/url"
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"strconv"
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"strings"
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"time"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/internal"
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"github.com/influxdata/telegraf/plugins/inputs"
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)
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// Mcrouter is a mcrouter plugin
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type Mcrouter struct {
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Servers []string
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Timeout internal.Duration
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}
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// enum for statType
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type statType int
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const (
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typeInt statType = iota
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typeFloat statType = iota
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)
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var sampleConfig = `
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## An array of address to gather stats about. Specify an ip or hostname
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## with port. ie tcp://localhost:11211, tcp://10.0.0.1:11211, etc.
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servers = ["tcp://localhost:11211", "unix:///var/run/mcrouter.sock"]
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## Timeout for metric collections from all servers. Minimum timeout is "1s".
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# timeout = "5s"
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`
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var defaultTimeout = 5 * time.Second
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var defaultServerURL = url.URL{
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Scheme: "tcp",
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Host: "localhost:11211",
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}
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// The list of metrics that should be sent
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var sendMetrics = map[string]statType{
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"uptime": typeInt,
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"num_servers": typeInt,
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"num_servers_new": typeInt,
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"num_servers_up": typeInt,
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"num_servers_down": typeInt,
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"num_servers_closed": typeInt,
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"num_clients": typeInt,
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"num_suspect_servers": typeInt,
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"destination_batches_sum": typeInt,
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"destination_requests_sum": typeInt,
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"outstanding_route_get_reqs_queued": typeInt,
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"outstanding_route_update_reqs_queued": typeInt,
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"outstanding_route_get_avg_queue_size": typeInt,
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"outstanding_route_update_avg_queue_size": typeInt,
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"outstanding_route_get_avg_wait_time_sec": typeInt,
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"outstanding_route_update_avg_wait_time_sec": typeInt,
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"retrans_closed_connections": typeInt,
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"destination_pending_reqs": typeInt,
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"destination_inflight_reqs": typeInt,
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"destination_batch_size": typeInt,
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"asynclog_requests": typeInt,
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"proxy_reqs_processing": typeInt,
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"proxy_reqs_waiting": typeInt,
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"client_queue_notify_period": typeInt,
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"rusage_system": typeFloat,
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"rusage_user": typeFloat,
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"ps_num_minor_faults": typeInt,
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"ps_num_major_faults": typeInt,
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"ps_user_time_sec": typeFloat,
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"ps_system_time_sec": typeFloat,
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"ps_vsize": typeInt,
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"ps_rss": typeInt,
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"fibers_allocated": typeInt,
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"fibers_pool_size": typeInt,
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"fibers_stack_high_watermark": typeInt,
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"successful_client_connections": typeInt,
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"duration_us": typeInt,
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"destination_max_pending_reqs": typeInt,
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"destination_max_inflight_reqs": typeInt,
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"retrans_per_kbyte_max": typeInt,
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"cmd_get_count": typeInt,
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"cmd_delete_out": typeInt,
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"cmd_lease_get": typeInt,
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"cmd_set": typeInt,
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"cmd_get_out_all": typeInt,
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"cmd_get_out": typeInt,
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"cmd_lease_set_count": typeInt,
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"cmd_other_out_all": typeInt,
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"cmd_lease_get_out": typeInt,
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"cmd_set_count": typeInt,
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"cmd_lease_set_out": typeInt,
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"cmd_delete_count": typeInt,
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"cmd_other": typeInt,
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"cmd_delete": typeInt,
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"cmd_get": typeInt,
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"cmd_lease_set": typeInt,
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"cmd_set_out": typeInt,
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"cmd_lease_get_count": typeInt,
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"cmd_other_out": typeInt,
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"cmd_lease_get_out_all": typeInt,
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"cmd_set_out_all": typeInt,
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"cmd_other_count": typeInt,
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"cmd_delete_out_all": typeInt,
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"cmd_lease_set_out_all": typeInt,
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}
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// SampleConfig returns sample configuration message
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func (m *Mcrouter) SampleConfig() string {
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return sampleConfig
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}
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// Description returns description of Mcrouter plugin
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func (m *Mcrouter) Description() string {
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return "Read metrics from one or many mcrouter servers"
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}
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// Gather reads stats from all configured servers accumulates stats
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func (m *Mcrouter) Gather(acc telegraf.Accumulator) error {
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ctx := context.Background()
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if m.Timeout.Duration < 1*time.Second {
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m.Timeout.Duration = defaultTimeout
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}
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ctx, cancel := context.WithTimeout(ctx, m.Timeout.Duration)
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defer cancel()
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if len(m.Servers) == 0 {
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m.Servers = []string{defaultServerURL.String()}
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}
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for _, serverAddress := range m.Servers {
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acc.AddError(m.gatherServer(ctx, serverAddress, acc))
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}
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return nil
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}
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// ParseAddress parses an address string into 'host:port' and 'protocol' parts
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func (m *Mcrouter) ParseAddress(address string) (string, string, error) {
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var protocol string
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var host string
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var port string
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u, parseError := url.Parse(address)
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if parseError != nil {
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return "", "", fmt.Errorf("Invalid server address")
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}
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if u.Scheme != "tcp" && u.Scheme != "unix" {
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return "", "", fmt.Errorf("Invalid server protocol")
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}
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protocol = u.Scheme
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if protocol == "unix" {
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if u.Path == "" {
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return "", "", fmt.Errorf("Invalid unix socket path")
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}
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address = u.Path
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} else {
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if u.Host == "" {
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return "", "", fmt.Errorf("Invalid host")
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}
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host = u.Hostname()
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port = u.Port()
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if host == "" {
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host = defaultServerURL.Hostname()
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}
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if port == "" {
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port = defaultServerURL.Port()
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}
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address = host + ":" + port
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}
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return address, protocol, nil
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}
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func (m *Mcrouter) gatherServer(ctx context.Context, address string, acc telegraf.Accumulator) error {
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var conn net.Conn
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var err error
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var protocol string
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var dialer net.Dialer
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address, protocol, err = m.ParseAddress(address)
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conn, err = dialer.DialContext(ctx, protocol, address)
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if err != nil {
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return err
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}
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defer conn.Close()
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// Extend connection
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deadline, ok := ctx.Deadline()
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if ok {
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conn.SetDeadline(deadline)
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}
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// Read and write buffer
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reader := bufio.NewReader(conn)
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scanner := bufio.NewScanner(reader)
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// Send command
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if _, err := fmt.Fprint(conn, "stats\r\n"); err != nil {
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return err
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}
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values, err := parseResponse(scanner)
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if err != nil {
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return err
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}
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// Add server address as a tag
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tags := map[string]string{"server": address}
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// Process values
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fields := make(map[string]interface{})
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for key, sType := range sendMetrics {
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if value, ok := values[key]; ok {
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switch sType {
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case typeInt:
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if v, errParse := strconv.ParseInt(value, 10, 64); errParse == nil {
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fields[key] = v
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}
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case typeFloat:
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if v, errParse := strconv.ParseFloat(value, 64); errParse == nil {
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fields[key] = v
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}
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default:
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}
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}
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}
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acc.AddFields("mcrouter", fields, tags)
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return nil
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}
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func parseResponse(r *bufio.Scanner) (map[string]string, error) {
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values := make(map[string]string)
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for r.Scan() {
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// Read line
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line := r.Text()
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// Done
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if line == "END" {
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break
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}
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// Read values
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s := strings.SplitN(line, " ", 3)
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if len(s) != 3 || s[0] != "STAT" {
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return nil, fmt.Errorf("unexpected line in stats response: %s", line)
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}
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// Save values
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values[s[1]] = s[2]
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}
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return values, nil
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}
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func init() {
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inputs.Add("mcrouter", func() telegraf.Input {
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return &Mcrouter{}
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})
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}
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@ -0,0 +1,250 @@
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package mcrouter
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import (
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"bufio"
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"strings"
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"testing"
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"github.com/influxdata/telegraf/testutil"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestAddressParsing(t *testing.T) {
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m := &Mcrouter{
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Servers: []string{"tcp://" + testutil.GetLocalHost()},
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}
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var acceptTests = [][3]string{
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{"tcp://localhost:8086", "localhost:8086", "tcp"},
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{"tcp://localhost", "localhost:" + defaultServerURL.Port(), "tcp"},
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{"tcp://localhost:", "localhost:" + defaultServerURL.Port(), "tcp"},
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{"tcp://:8086", defaultServerURL.Hostname() + ":8086", "tcp"},
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{"tcp://:", defaultServerURL.Host, "tcp"},
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}
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var rejectTests = []string{
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"tcp://",
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}
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for _, args := range acceptTests {
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address, protocol, err := m.ParseAddress(args[0])
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assert.Nil(t, err, args[0])
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assert.True(t, address == args[1], args[0])
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assert.True(t, protocol == args[2], args[0])
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}
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for _, addr := range rejectTests {
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address, protocol, err := m.ParseAddress(addr)
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assert.NotNil(t, err, addr)
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assert.Empty(t, address, addr)
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assert.Empty(t, protocol, addr)
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}
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}
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func TestMcrouterGeneratesMetrics(t *testing.T) {
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if testing.Short() {
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t.Skip("Skipping integration test in short mode")
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}
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m := &Mcrouter{
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Servers: []string{"tcp://" + testutil.GetLocalHost()},
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}
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var acc testutil.Accumulator
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err := acc.GatherError(m.Gather)
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require.NoError(t, err)
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intMetrics := []string{"uptime", "num_servers", "num_servers_new", "num_servers_up",
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"num_servers_down", "num_servers_closed", "num_clients",
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"num_suspect_servers", "destination_batches_sum", "destination_requests_sum",
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"outstanding_route_get_reqs_queued", "outstanding_route_update_reqs_queued",
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"outstanding_route_get_avg_queue_size", "outstanding_route_update_avg_queue_size",
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||||
"outstanding_route_get_avg_wait_time_sec", "outstanding_route_update_avg_wait_time_sec",
|
||||
"retrans_closed_connections", "destination_pending_reqs", "destination_inflight_reqs",
|
||||
"destination_batch_size", "asynclog_requests", "proxy_reqs_processing",
|
||||
"proxy_reqs_waiting", "client_queue_notify_period",
|
||||
"ps_num_minor_faults", "ps_num_major_faults",
|
||||
"ps_vsize", "ps_rss", "fibers_allocated", "fibers_pool_size", "fibers_stack_high_watermark",
|
||||
"successful_client_connections", "duration_us", "destination_max_pending_reqs",
|
||||
"destination_max_inflight_reqs", "retrans_per_kbyte_max", "cmd_get_count", "cmd_delete_out",
|
||||
"cmd_lease_get", "cmd_set", "cmd_get_out_all", "cmd_get_out", "cmd_lease_set_count",
|
||||
"cmd_other_out_all", "cmd_lease_get_out", "cmd_set_count", "cmd_lease_set_out",
|
||||
"cmd_delete_count", "cmd_other", "cmd_delete", "cmd_get", "cmd_lease_set", "cmd_set_out",
|
||||
"cmd_lease_get_count", "cmd_other_out", "cmd_lease_get_out_all", "cmd_set_out_all",
|
||||
"cmd_other_count", "cmd_delete_out_all", "cmd_lease_set_out_all"}
|
||||
|
||||
floatMetrics := []string{"rusage_system", "rusage_user", "ps_user_time_sec", "ps_system_time_sec"}
|
||||
|
||||
for _, metric := range intMetrics {
|
||||
assert.True(t, acc.HasInt64Field("mcrouter", metric), metric)
|
||||
}
|
||||
|
||||
for _, metric := range floatMetrics {
|
||||
assert.True(t, acc.HasFloatField("mcrouter", metric), metric)
|
||||
}
|
||||
}
|
||||
|
||||
func TestMcrouterParseMetrics(t *testing.T) {
|
||||
r := bufio.NewReader(strings.NewReader(mcrouterStats))
|
||||
scanner := bufio.NewScanner(r)
|
||||
values, err := parseResponse(scanner)
|
||||
require.NoError(t, err, "Error parsing mcrouter response")
|
||||
|
||||
tests := []struct {
|
||||
key string
|
||||
value string
|
||||
}{
|
||||
{"uptime", "166"},
|
||||
{"num_servers", "1"},
|
||||
{"num_servers_new", "1"},
|
||||
{"num_servers_up", "0"},
|
||||
{"num_servers_down", "0"},
|
||||
{"num_servers_closed", "0"},
|
||||
{"num_clients", "1"},
|
||||
{"num_suspect_servers", "0"},
|
||||
{"destination_batches_sum", "0"},
|
||||
{"destination_requests_sum", "0"},
|
||||
{"outstanding_route_get_reqs_queued", "0"},
|
||||
{"outstanding_route_update_reqs_queued", "0"},
|
||||
{"outstanding_route_get_avg_queue_size", "0"},
|
||||
{"outstanding_route_update_avg_queue_size", "0"},
|
||||
{"outstanding_route_get_avg_wait_time_sec", "0"},
|
||||
{"outstanding_route_update_avg_wait_time_sec", "0"},
|
||||
{"retrans_closed_connections", "0"},
|
||||
{"destination_pending_reqs", "0"},
|
||||
{"destination_inflight_reqs", "0"},
|
||||
{"destination_batch_size", "0"},
|
||||
{"asynclog_requests", "0"},
|
||||
{"proxy_reqs_processing", "1"},
|
||||
{"proxy_reqs_waiting", "0"},
|
||||
{"client_queue_notify_period", "0"},
|
||||
{"rusage_system", "0.040966"},
|
||||
{"rusage_user", "0.020483"},
|
||||
{"ps_num_minor_faults", "2490"},
|
||||
{"ps_num_major_faults", "11"},
|
||||
{"ps_user_time_sec", "0.02"},
|
||||
{"ps_system_time_sec", "0.04"},
|
||||
{"ps_vsize", "697741312"},
|
||||
{"ps_rss", "10563584"},
|
||||
{"fibers_allocated", "0"},
|
||||
{"fibers_pool_size", "0"},
|
||||
{"fibers_stack_high_watermark", "0"},
|
||||
{"successful_client_connections", "18"},
|
||||
{"duration_us", "0"},
|
||||
{"destination_max_pending_reqs", "0"},
|
||||
{"destination_max_inflight_reqs", "0"},
|
||||
{"retrans_per_kbyte_max", "0"},
|
||||
{"cmd_get_count", "0"},
|
||||
{"cmd_delete_out", "0"},
|
||||
{"cmd_lease_get", "0"},
|
||||
{"cmd_set", "0"},
|
||||
{"cmd_get_out_all", "0"},
|
||||
{"cmd_get_out", "0"},
|
||||
{"cmd_lease_set_count", "0"},
|
||||
{"cmd_other_out_all", "0"},
|
||||
{"cmd_lease_get_out", "0"},
|
||||
{"cmd_set_count", "0"},
|
||||
{"cmd_lease_set_out", "0"},
|
||||
{"cmd_delete_count", "0"},
|
||||
{"cmd_other", "0"},
|
||||
{"cmd_delete", "0"},
|
||||
{"cmd_get", "0"},
|
||||
{"cmd_lease_set", "0"},
|
||||
{"cmd_set_out", "0"},
|
||||
{"cmd_lease_get_count", "0"},
|
||||
{"cmd_other_out", "0"},
|
||||
{"cmd_lease_get_out_all", "0"},
|
||||
{"cmd_set_out_all", "0"},
|
||||
{"cmd_other_count", "0"},
|
||||
{"cmd_delete_out_all", "0"},
|
||||
{"cmd_lease_set_out_all", "0"},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
value, ok := values[test.key]
|
||||
if !ok {
|
||||
t.Errorf("Did not find key for metric %s in values", test.key)
|
||||
continue
|
||||
}
|
||||
if value != test.value {
|
||||
t.Errorf("Metric: %s, Expected: %s, actual: %s",
|
||||
test.key, test.value, value)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var mcrouterStats = `STAT version 36.0.0 mcrouter
|
||||
STAT commandargs --port 11211 --config-file /etc/mcrouter/mcrouter.json --async-dir /var/spool/mcrouter --log-path /var/log/mcrouter/mcrouter.log --stats-root /var/mcrouter/stats --server-timeout 100 --reset-inactive-connection-interval 10000 --proxy-threads auto
|
||||
STAT pid 21357
|
||||
STAT parent_pid 1
|
||||
STAT time 1524673265
|
||||
STAT uptime 166
|
||||
STAT num_servers 1
|
||||
STAT num_servers_new 1
|
||||
STAT num_servers_up 0
|
||||
STAT num_servers_down 0
|
||||
STAT num_servers_closed 0
|
||||
STAT num_clients 1
|
||||
STAT num_suspect_servers 0
|
||||
STAT destination_batches_sum 0
|
||||
STAT destination_requests_sum 0
|
||||
STAT outstanding_route_get_reqs_queued 0
|
||||
STAT outstanding_route_update_reqs_queued 0
|
||||
STAT outstanding_route_get_avg_queue_size 0
|
||||
STAT outstanding_route_update_avg_queue_size 0
|
||||
STAT outstanding_route_get_avg_wait_time_sec 0
|
||||
STAT outstanding_route_update_avg_wait_time_sec 0
|
||||
STAT retrans_closed_connections 0
|
||||
STAT destination_pending_reqs 0
|
||||
STAT destination_inflight_reqs 0
|
||||
STAT destination_batch_size 0
|
||||
STAT asynclog_requests 0
|
||||
STAT proxy_reqs_processing 1
|
||||
STAT proxy_reqs_waiting 0
|
||||
STAT client_queue_notify_period 0
|
||||
STAT rusage_system 0.040966
|
||||
STAT rusage_user 0.020483
|
||||
STAT ps_num_minor_faults 2490
|
||||
STAT ps_num_major_faults 11
|
||||
STAT ps_user_time_sec 0.02
|
||||
STAT ps_system_time_sec 0.04
|
||||
STAT ps_vsize 697741312
|
||||
STAT ps_rss 10563584
|
||||
STAT fibers_allocated 0
|
||||
STAT fibers_pool_size 0
|
||||
STAT fibers_stack_high_watermark 0
|
||||
STAT successful_client_connections 18
|
||||
STAT duration_us 0
|
||||
STAT destination_max_pending_reqs 0
|
||||
STAT destination_max_inflight_reqs 0
|
||||
STAT retrans_per_kbyte_max 0
|
||||
STAT cmd_get_count 0
|
||||
STAT cmd_delete_out 0
|
||||
STAT cmd_lease_get 0
|
||||
STAT cmd_set 0
|
||||
STAT cmd_get_out_all 0
|
||||
STAT cmd_get_out 0
|
||||
STAT cmd_lease_set_count 0
|
||||
STAT cmd_other_out_all 0
|
||||
STAT cmd_lease_get_out 0
|
||||
STAT cmd_set_count 0
|
||||
STAT cmd_lease_set_out 0
|
||||
STAT cmd_delete_count 0
|
||||
STAT cmd_other 0
|
||||
STAT cmd_delete 0
|
||||
STAT cmd_get 0
|
||||
STAT cmd_lease_set 0
|
||||
STAT cmd_set_out 0
|
||||
STAT cmd_lease_get_count 0
|
||||
STAT cmd_other_out 0
|
||||
STAT cmd_lease_get_out_all 0
|
||||
STAT cmd_set_out_all 0
|
||||
STAT cmd_other_count 0
|
||||
STAT cmd_delete_out_all 0
|
||||
STAT cmd_lease_set_out_all 0
|
||||
END
|
||||
`
|
||||
Loading…
Reference in New Issue