consul-bench
consul-bench is a small tool to generate load on a Consul cluster by running blocking queries against a service. It can automatically register service instances on startup to simulate a large number of nodes/instances. Autoregistered instances can be configured to flap (go between critical and passing state) on configurable interval.
Examples
With an existing service
consul-bench -service my-service -watchers 300
Will run 300 /v1/health/service/my-service?wait=10m&stale blocking queries in parallel.
Auto register N service instances
consul-bench -service my-fake-service -register 200 -flap-interval 10s -watchers 500
Will register 200 instances of "my-fake-service", make each instance flap every 10 seconds and run 500 blocking queries in parallel.
Deregister
Registered instances are not deregistered when exiting however they will be deregistered after 6 * -flap-interval (or 20m if no -flap-interval is given) using deregister_critical_service_after.
If you want to immediatly deregister them, use consul-bench -service my-service -deregister. Note that this will deregister all instance of the service wether they were registered by consul-bench or not.
Full options
Usage of consul-bench:
-consul string
Consul address (default "127.0.0.1:8500")
-dc string
When using rpc, the consul datacenter (default "dc1")
-deregister
Deregister all instances of -service
-flap-interval duration
If -register is given, flap each instance between critical and passing state on given interval
-query-stale
Run stale blocking queries
-query-wait duration
Bloquing queries max wait time (default 10m0s)
-register int
Register N -service instances
-rpc
Use RPC server calls instead of agent HTTP
-rpc-addr string
When using rpc, the consul rpc addr (default "127.0.0.1:8300")
-service string
Service to watch (default "srv")
-tags string
Comma seperated list of tags to add to registered services (default "", -tags load-test,monitor=false)
-token string
ACL token
-watchers int
Number of concurrnet watchers on service (default 1)
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