spring-boot

Files

Andy Wilkinson b8b4ea489e Improve MetricsFilter’s handling of async requests

Previously, MetricsFilter would treat async requests the same as
sync requests and would record their response status as soon as the
request had been processed by the filter chain. This would result in a
200 response being recorded and the actual response status produced by
the async processing being ignored. Furthermore, the time that was
recorded for the request would not include the time take for any async processing.

This commit updates MetricsFilter to check whether or not an async
request has been started before it records the metrics for the request.
In the event of an async request having been started no metrics are
recorded. Instead, the StopWatch is stored in a request attribute that
is then retrieved during the filtering of the request’s async
dispatch(es). Once the async processing has completed (isAsyncStarted()
returns false), the StopWatch is stopped, removed from the request’s
attributes and the metrics for the request are recorded.

Closes gh-4098

2015-10-06 11:00:59 +01:00

src

Improve MetricsFilter’s handling of async requests

2015-10-06 11:00:59 +01:00

pom.xml

Next development version

2015-09-16 09:00:17 -07:00

README.adoc

Remove duplicate "should" word from README

2014-12-17 13:30:09 +01:00

README.adoc

= Spring Boot - Actuator

Spring Boot Actuator includes a number of additional features to help you monitor and
manage your application when it's pushed to production. You can choose to manage and
monitor your application using HTTP endpoints, with JMX or even by remote shell (SSH or
Telnet).  Auditing, health and metrics gathering can be automatically applied to your
application. The
http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#production-ready[user guide]
covers the features in more detail.

== Enabling the Actuator
The simplest way to enable the features is to add a dependency to the
`spring-boot-starter-actuator` ``Starter POM''. To add the actuator to a Maven based
project, add the following "starter" dependency:

[source,xml,indent=0]
----
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
	</dependencies>
----

For Gradle, use the declaration:

[indent=0]
----
	dependencies {
		compile("org.springframework.boot:spring-boot-starter-actuator")
	}
----

== Features
* **Endpoints** Actuator endpoints allow you to monitor and interact with your
  application. Spring Boot includes a number of built-in endpoints and you can also add
  your own. For example the `health` endpoint provides basic application health
  information. Run up a basic application and look at `/health` (and see `/mappings` for
  a list of other HTTP endpoints).
* **Metrics** Spring Boot Actuator includes a metrics service with ``gauge'' and
  ``counter'' support.  A ``gauge'' records a single value; and a ``counter'' records a
  delta (an increment or decrement). Metrics for all HTTP requests are automatically
  recorded, so if you hit the `metrics` endpoint should see a sensible response.
* **Audit** Spring Boot Actuator has a flexible audit framework that will publish events
  to an `AuditService`. Once Spring Security is in play it automatically publishes
  authentication events by default. This can be very useful for reporting, and also to
  implement a lock-out policy based on authentication failures.
* **Process Monitoring** In Spring Boot Actuator you can find `ApplicationPidListener`
  which creates a file containing the application PID (by default in the application
  directory with a file name of `application.pid`).