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Netflix Application Monitoring Library

Merge pull request #337 from dmuino/dstypeGauge

Do not set atlas.dstype=gauge for normalized counters
latest commit df0a5aa1fe
@brharrington brharrington authored
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codequality remove redundant throws. no longer supported in checkstlye 6.2
gradle/wrapper Update check tasks: avoid running pmd and checkstlye on tests and jsr…
servo-apache Make PMD and checkstyle fail the build. Fixes for some PMD and checks…
servo-atlas Do not set atlas.dstype=gauge for normalized counters
servo-aws Make PMD and checkstyle fail the build. Fixes for some PMD and checks…
servo-core fix formatting
servo-example Make PMD and checkstyle fail the build. Fixes for some PMD and checks…
servo-graphite Make PMD and checkstyle fail the build. Fixes for some PMD and checks…
servo-internal change build to use nebula.netflixoss plugin
servo-tomcat Add bytesReceived to tomcat metrics
.gitignore Constante has been replaced by Enum - it looks better add link to release page clarify build and test steps
LICENSE Restructure into smaller files
LICENSE.txt Added files.
NOTICE.txt tiny, tiny change :) update readme to refer to new builds
build.gradle Only run findbugs for main change the default release scope to be patch
gradlew Upgrading to Gradle 1.4
gradlew.bat Upgrade to Gradle 1.1.
settings.gradle Add a servo-atlas project providing an observer that can send metrics…

Servo: Application Metrics in Java



Servo provides a simple interface for exposing and publishing application metrics in Java. The primary goals are:

  • Leverage JMX: JMX is the standard monitoring interface for Java and can be queried by many existing tools.
  • Keep It Simple: It should be trivial to expose metrics and publish metrics without having to write lots of code such as MBean interfaces.
  • Flexible Publishing: Once metrics are exposed, it should be easy to regularly poll the metrics and make them available for internal reporting systems, logs, and services like Amazon CloudWatch.

This has already been implemented inside of Netflix and most of our applications currently use it.

Project Details

Build Status

Branch Status
snapshot Build Status
release Build Status
pull-requests Build Status


Servo is released with a 0.X.Y version because it has not yet reached full API stability.

Given a version number MAJOR.MINOR.PATCH, increment the:

  • MINOR version when there are binary incompatible changes, and
  • PATCH version when new functionality or bug fixes are backwards compatible.



Project Usage


To build the Servo project:

$ git clone
$ cd servo
$ ./gradlew build

More details can be found on the Getting Started page of the wiki.


Binaries and dependency information can be found at Maven Central.

Maven Example:


Ivy Example:

<dependency org="" name="servo-core" rev="0.8.0" />


Copyright 2014 Netflix, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at:

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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