The actuator of Springboot

The integration of actuator in Springboot makes it easy to manage and monitor the status of your application.

The exposed restful interfaces are:

http Method	Path	Description	Authentication
GET	/autoconfig	View the usage of automatic configuration	True
GET	/configprops	View configuration properties, including default configuration	True
GET	/beans	View a list of beans and their relationships	True
GET	/dump	Print thread stacks	True
GET	/env	View all environment variables	True
GET	/env/{name}	View specific variable values	True
GET	/health	View App Health Metrics	False
GET	/info	View app Information	False
GET	/mappings	View all URL mappings	True
GET	/metrics	View App Basic Metrics	True
GET	/metrics/{name}	View specific metrics	True
POST	/shutdown	Close the app	True
GET	/trace	View basic tracking information	True

Many of these requests require authentication to access, since our application is basically exposed to the extranet through Nginx, we can disable authentication interception in the configuration file.

# Disable Actuator Management end authentication Management.security.enabled=false# enable shutdown   host:port/  shutdownendpoints.shutdown.enabled=true# disables password authentication endpoints.shutdown.sensitive=false 

By accessing Http://IP:port/metrics, you can get similar information like this:

1 {2"Mem": 372386,3"Mem.free": 129077,4"Processors": 4,5"Instance.uptime": 12149,6"Uptime": 20629,7"Systemload.average":-1.0,8"Heap.committed": 302080,9"Heap.init": 129024,Ten"Heap.used": 173002, One"Heap": 1807872, A"Nonheap.committed": 72448, -"Nonheap.init": 2496, -"Nonheap.used": 70307, the"Nonheap": 0, -"Threads.peak": 57, -"Threads.daemon": 53, -"Threads.totalstarted": 64, +"Threads": 55, -"Classes": 9724, +"Classes.loaded": 9724, A"Classes.unloaded": 0, at"Gc.ps_scavenge.count": 11, -"Gc.ps_scavenge.time": 151, -"Gc.ps_marksweep.count": 2, -"Gc.ps_marksweep.time": 242, -"Counter.servo.eurekaserver.replication.batchsize.count": 0, -"Counter.servo.eurekaserver.replication.batchsize.totaltime": 0, in"Gauge.servo.eurekaserver.replication.batchsize.stddev": 0.0, -"Gauge.servo.eurekaserver.replication.batchsize.percentile_50": 0.0, to"Gauge.servo.eurekaserver.replication.batchsize.percentile_95": 0.0, +"Gauge.servo.eurekaserver.replication.batchsize.percentile_99": 0.0, -"Gauge.servo.eurekaserver.replication.batchsize.percentile_99_50": 0.0, the"Counter.servo.eurekaserver.replication.acceptedtasks": 0, *"Counter.servo.eurekaserver.replication.replayedtasks": 0, $"Counter.servo.eurekaserver.replication.expiredtasks": 0,Panax Notoginseng"Counter.servo.eurekaserver.replication.overriddentasks": 0, -"Counter.servo.eurekaserver.replication.queueoverflows": 0, the"Gauge.servo.eurekaserver.replication.acceptorqueuesize": 0, +"Gauge.servo.eurekaserver.replication.pendingjobrequests": 1, A"Gauge.servo.eurekaserver.replication.availablejobs": 0, the"Gauge.servo.eurekaserver.replication.reprocessqueuesize": 0, +"Gauge.servo.eurekaserver.replication.queuesize": 0, -"Counter.servo.count": 0, $"Counter.servo.count-minus-replication": 0, $"Counter.servo.eurekaserver.replication.executiontime.count": 0, -"Counter.servo.eurekaserver.replication.executiontime.totaltime": 0, -"Gauge.servo.eurekaserver.replication.executiontime.stddev": 0.0, the"Gauge.servo.eurekaserver.replication.executiontime.percentile_50": 0.0, -"Gauge.servo.eurekaserver.replication.executiontime.percentile_95": 0.0,Wuyi"Gauge.servo.eurekaserver.replication.executiontime.percentile_99": 0.0, the"Gauge.servo.eurekaserver.replication.executiontime.percentile_99_50": 0.0, -"Counter.servo.eurekaserver.replication.numberofsuccessfulexecutions": 0, Wu"Counter.servo.eurekaserver.replication.numberoftransienterrors": 0, -"Counter.servo.eurekaserver.replication.numberofpermanenterrors": 0, About"Normalized.servo.serialize-all.totaltime": 0.0, $"Normalized.servo.serialize-all.count": 0.0, -"Gauge.servo.serialize-all.min": 0.0, -"Gauge.servo.serialize-all.max": 0.0, -"Normalized.servo.serialize-all-delta.totaltime": 0.0, A"Normalized.servo.serialize-all-delta.count": 0.0, +"Gauge.servo.serialize-all-delta.min": 0.0, the"Gauge.servo.serialize-all-delta.max": 0.0, -"Normalized.servo.serialize-all_remote_region.totaltime": 0.0, $"Normalized.servo.serialize-all_remote_region.count": 0.0, the"Gauge.servo.serialize-all_remote_region.min": 0.0, the"Gauge.servo.serialize-all_remote_region.max": 0.0, the"Normalized.servo.serialize-all-delta_remote_region.totaltime": 0.0, the"Normalized.servo.serialize-all-delta_remote_region.count": 0.0, -"Gauge.servo.serialize-all-delta_remote_region.min": 0.0, in"Gauge.servo.serialize-all-delta_remote_region.max": 0.0, the"Normalized.servo.serialize-one.totaltime": 0.0, the"Normalized.servo.serialize-one.count": 0.0, About"Gauge.servo.serialize-one.min": 0.0, the"Gauge.servo.serialize-one.max": 0.0, the"Normalized.servo.serialize-one-vip.totaltime": 0.0, the"Normalized.servo.serialize-one-vip.count": 0.0, +"Gauge.servo.serialize-one-vip.min": 0.0, -"Gauge.servo.serialize-one-vip.max": 0.0, the"Normalized.servo.compress-payload.totaltime": 0.0,Bayi"Normalized.servo.compress-payload.count": 0.0, the"Gauge.servo.compress-payload.min": 0.0, the"Gauge.servo.compress-payload.max": 0.0, -"Gauge.servo.responsecachesize": 0, -"Counter.servo.discovery-peernodeclient-localhost_reuse": 0, the"Counter.servo.discovery-peernodeclient-localhost_createnew": 0, the"Counter.servo.discovery-peernodeclient-localhost_request": 0, the"Counter.servo.discovery-peernodeclient-localhost_release": 0, the"Counter.servo.discovery-peernodeclient-localhost_delete": 0, -"Normalized.servo.discovery-peernodeclient-localhost_requestconnectiontimer.totaltime": 0.0, the"Normalized.servo.discovery-peernodeclient-localhost_requestconnectiontimer.count": 0.0, the"Gauge.servo.discovery-peernodeclient-localhost_requestconnectiontimer.min": 0.0, the"Gauge.servo.discovery-peernodeclient-localhost_requestconnectiontimer.max": 0.0,94"Normalized.servo.discovery-peernodeclient-localhost_createconnectiontimer.totaltime": 0.0, the"Normalized.servo.discovery-peernodeclient-localhost_createconnectiontimer.count": 0.0, the"Gauge.servo.discovery-peernodeclient-localhost_createconnectiontimer.min": 0.0, the"Gauge.servo.discovery-peernodeclient-localhost_createconnectiontimer.max": 0.0,98"Gauge.servo.connectioncount": 0, About"Gauge.servo.localregistrysize": 0, -"Gauge.servo.numofreplicationsinlastmin": 0,101"Gauge.servo.isbelowrenewthreshold": 0,102"Gauge.servo.numofrenewsinlastmin": 0,103"Gauge.servo.numofrenewsperminthreshold": 1,104"Gauge.servo.numofelementsininstancecache": 0, the"Normalized.servo.eureka-connection-cleaner-time.totaltime": 0.0,106"Normalized.servo.eureka-connection-cleaner-time.count": 0.0,107"Gauge.servo.eureka-connection-cleaner-time.min": 0.0,108"Gauge.servo.eureka-connection-cleaner-time.max": 0.0,109"Counter.servo.eureka-connection-cleaner-failure": 0, the"Httpsessions.max":-1,111"Httpsessions.active": 0 the}

If you only care about some of the parameters you can use: http://IP:port/metrics/mem to see the value of a particular parameter

{"Mem": 373311}

The actuator of Springboot