Timeout (in seconds) for proxy connections to a node. That is the time mod_cluster will wait for the back-end response before returning error. That corresponds to timeout in the worker mod_proxy documentation. A value of -1 indicates no timeout. Note that mod_cluster always uses a cping/cpong before forwarding a request and the connectiontimeout value used by mod_cluster is the ping value.

timeout	ProxyTimeout	Socket timeout in seconds. The number of seconds Apache httpd waits for data sent by / to the backend.

    /**
     * Maximum time on seconds for idle connections the proxy will wait to connect to the node.
     */
    int getNodeTimeout();

[standalone@embedded /] /subsystem=modcluster/proxy=default:read-resource-description
{
    "outcome" => "success",
    "result" => {
...
            "node-timeout" => {
                "type" => INT,
                "description" => "Timeout (in seconds) for proxy connections to a node. That is the time mod_cluster will wait for the back-end response before returning an error.",
                "expressions-allowed" => true,
                "required" => false,
                "nillable" => true,
                "unit" => "SECONDS",
                "min" => 1L,
                "max" => 2147483647L,
                "stability" => "default",
                "access-type" => "read-write",
                "storage" => "configuration",
                "restart-required" => "all-services"
            },

        <xs:attribute name="node-timeout" type="xs:string">
            <xs:annotation>
                <xs:documentation>
                    Timeout (in seconds) for proxy connections to a node. That is the time mod_cluster will wait for the
                    back-end response before returning an error.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>