JarCastingHC-JMX
JMX MXBean for Apache HttpComponents HttpClient 4.5.x
Summary
View HttpClient metrics from a PoolingHttpClientConnectionManager
- MaxTotal*
- DefaultMaxPerRoute*
- Leased
- Pending
- Available
- RoutesTotal
Metrics marked with an asterisk are read/write
Available to view via JMX compatible monitoring and profiling tools such as AppDynamics, DataDog and VisualVM
Usage
<dependency>
<groupId>com.testingsyndicate</groupId>
<artifactId>hc-jmx</artifactId>
<version>...</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5</version>
</dependency>
// Create a PoolingHttpClientConnectionManager
PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
// Register it with the name "default"
HcJmx.getInstance().register(connectionManager);
// Or pass a Client directly (extracts PoolingHttpClientConnectionManager using reflection)
HttpClient client = HttpClients.custom()
.setMaxConnPerRoute(10)
.setMaxConnTotal(15)
.build();
HcJmx.getInstance().register(client);
Screenshots
Metrics shown in VisualVM
License
MIT