What is the use of PoolingHttpClientConnectionManager?
PoolingHttpClientConnectionManager is a more complex implementation that manages a pool of client connections and is able to service connection requests from multiple execution threads. Connections are pooled on a per route basis.
Is CloseableHttpClient thread-safe?
[Closeable]HttpClient implementations are expected to be thread safe. It is recommended that the same instance of this class is reused for multiple request executions.
How does HTTP connection pool work?
When you set up connection pooling, instead of closing the client HTTP connection after use, CICS keeps the connection open and stores it in a pool in a dormant state. The dormant connection can be reused by the same application or by another application that connects to the same host and port.
How do I monitor HTTP connection pool?
Go to Monitoring and Tuning > Performance Viewer > Current activity , select server, then in PMI viewer select Settings > Log to define logging period and format. And in Modules > Thread pools > WebContainer you can view current counter values. This is rather for short term monitoring, than for constant logging.
What is MaxPerRoute?
MaxPerRoute is the maximum number of connections to a particular host. If the client attempts to make a request and either of these maximums have been reached, then by default the client will block until a connection is free.
Do I need to close HttpClient?
You do not need to explicitly close the HttpClient, however, (you may be doing this already but worth noting) you should ensure that connections are released after method execution. Edit: The ClientConnectionManager within the HttpClient is going to be responsible for maintaining the state of connections.
What is a route in HttpClient?
HttpClient differentiates connections of a route into plain, tunneled and layered. The use of multiple intermediate proxies to tunnel connections to the target host is referred to as proxy chaining. Plain routes are established by connecting to the target or the first and only proxy.
What is ConnectionKeepAliveStrategy?
public interface ConnectionKeepAliveStrategy. Interface for deciding how long a connection can remain idle before being reused. Implementations of this interface must be thread-safe. Access to shared data must be synchronized as methods of this interface may be executed from multiple threads. Since: 4.0.