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Code Block
<transportReceiver name="https" class="org.apache.synapse.transport.passthru.PassThroughHttpSSLListener">
...
   <parameter name="CertificateRevocationVerifier">true< enable="true">
                <CacheSize>1024</CacheSize>
                <CacheDelay>1000</CacheDelay>
    </parameter>
</transportReceiver>

...

Code Block
<transportSender name="https" class="org.apache.synapse.transport.passthru.PassThroughHttpSSLSender">
...
   <parameter name="CertificateRevocationVerifier">true<" enable="true">
                <CacheSize>1024</CacheSize>
                <CacheDelay>1000</CacheDelay>
   </parameter>
</transportSender>

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Excerpt

Connection throttling

With the PassThrough transport and HTTP NIO transport, you can enable connection throttling to restrict the number of simultaneous open connections. To enable connection throttling, edit the <EI_HOME>/conf/nhttp.properties (for the HTTP NIO transport) or <EI_HOME>/conf/passthru-http.properties (for the PassThrough transport), and add the following line:

max_open_connections = 2

This will restrict simultaneous open incoming connections to 2. To disable throttling, delete the max_open_connections setting or set it to -1.

Info

Connection throttling is never exact. For example, setting this property to 2 will result in roughly two simultaneous open connections at any given time.

Configuring Listeners

The PassThrough transport has 4 HTTP/HTTPS listneres by default. It includes 2 PassThroughHttpListener threads and 2 PassThroughHttpSSLListener threads.

You can configure the number of listeners in the  <EI_HOME>/conf/passthru-http.properties file using the io_threads_per_reactor property. You are able to define any number of listeners as there is no maximum limit defined in the code level.

Note

The number of listener threads is double the value of the io_threads_per_reactor property because the same number of PassThroughHttpListener and PassThroughHttpSSLListener threads are created.

For example, if you defined the value for the io_threads_per_reactor property as 5, you have 5 PassThroughHttpListener threads and 5 PassThroughHttpSSLListener threads. Therefore, the total number of listeners are 10.