Appendix B. Reference: Java properties

Proxy Configuration Attributes

stickySession

Specifies whether subsequent requests for a given session should be routed to the same node, if possible. Default is true.

stickySessionRemove

Specifies whether the httpd proxy should remove session stickiness if the balancer is unable to route a request to the node to which it is stuck. This property is ignored if stickySession is false. Default is false.

stickySessionForce

Specifies whether the httpd proxy should return an error if the balancer is unable to route a request to the node to which it is stuck. This property is ignored if stickySession is false. Default is true.

workerTimeout

Specifies the number of seconds to wait for a worker to become available to handle a request. When all the workers of a balancer are usable, mod_cluster will retry after a while (workerTimeout/100) to find a usable worker.

A value of -1 indicates that the httpd will not wait for a worker to be available and will return an error if no workers are available. Default is -1.

maxAttempts

Specifies the number of times the httpd proxy will attempt to send a given request to a worker before aborting. The minimum value is 1: try once before aborting. Default is 1.

flushPackets

Specifies whether packet flushing is enabled or disabled. Default is false.

flushWait

Specifies the time to wait before flushing packets. A value of -1 means wait forever. Default is -1.

ping

Time to wait (in seconds) for a pong answer to a ping. Default is 10.

smax

Specifies the soft maximum idle connection count. The maximum value is determined by the httpd thread configuration ( ThreadsPerChild or 1 ).

ttl

Specifies the time (in seconds) idle connections persist, above the smax threshold. Default is 60.

nodeTimeout

Specifies the time (in seconds) mod_cluster waits for the back-end server response before returning an error.

mod_cluster always uses a CPing/CPong before forwarding a request. The connectiontimeout value used by mod_cluster is the ping value. Default is -1.

balancer

Specifies the name of the load-balancer. Default is mycluster.

domain

Optional parameter, which specifies how load is balanced across jvmRoutes within the same domain. domain is used in conjunction with partitioned session replication (for example, buddy replication).