Apache Load Balaning sticky session issue Post: 302431538

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Operating Systems Linux Red Hat Apache Load Balaning sticky session issue Post 302431538 by raphaelbertozzi on Tuesday 22nd of June 2010 05:42:16 AM

06-22-2010

Registered User

You need use mod_jk module (together with Apache2) and in the worker.properties specify something like that:

SERVER 1

worker.mte01a.port=8009 <- port
worker.mte01a.host=server1 <hostname of server 1
worker.mte01a.type=ajp13 < connector
worker.mte01a.lbfactor=1 < level of LB
worker.mte01a.connection_pool_timeout=600 < no explain
worker.mte01a.sticky_session=true < must be true
worker.mte01a.socket_keepalive=true < must be true
worker.mte01a.socket_timeout=360 < default socket timeout
worker.mte01a.socket_connect_timeout=360000 < a good timeout
worker.mte01a.session_cookie=JSESSIONID1 < this parameter need to be the same here and in the line:

<Engine name="jboss.web" jvmRoute="JSESSIONID1" defaultHost="server1">

in the file: (JBOSS AS)
jbossdir/server/mte01/deploy/jboss-web.deployer/server.xml

SERVER 2:
worker.mte01b.port=8009 <- port
worker.mte01b.host=server1 <hostname of server 2
worker.mte01b.type=ajp13 < connector
worker.mte01b.lbfactor=1 < level of LB
worker.mte01b.connection_pool_timeout=600 < no explain
worker.mte01b.sticky_session=true < must be true
worker.mte01b.socket_keepalive=true < must be true
worker.mte01b.socket_timeout=360 < default socket timeout
worker.mte01b.socket_connect_timeout=360000 < a good timeout
worker.mte01b.session_cookie=JSESSIONID1 < this parameter need to be the same here and in the line:

<Engine name="jboss.web" jvmRoute="JSESSIONID1" defaultHost="server2">

in the file: (JBOSS AS)
jbossdir/server/mte01/deploy/jboss-web.deployer/server.xml

I'm using RHEL 5.3, Apache2 and JBoss AS 4.2.2.GA in the example.

raphaelbertozzi

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gearman_worker_add_server

GEARMAN_WORKER_ADD_SERVER(3)					     Gearmand					      GEARMAN_WORKER_ADD_SERVER(3)

NAME

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SYNOPSIS

       #include <libgearman/gearman.h>

       gearman_return_t gearman_worker_add_server(gearman_worker_st *worker, const char *host, in_port_t port)

       gearman_return_t gearman_worker_add_servers(gearman_worker_st *worker, const char *servers)

       void gearman_worker_remove_servers(gearman_worker_st *worker)

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DESCRIPTION

       gearman_worker_add_server() will add an additional gearmand server to the list of servers that the worker will take work from.

       gearman_worker_remove_servers() will remove all servers from the gearman_worker_st.

       gearman_worker_add_servers() takes a list of gearmand servers that will be parsed to provide servers for the worker. The format for this is
       SERVER[:PORT][,SERVER[:PORT]]...

       Examples of this are:

       10.0.0.1,10.0.0.2,10.0.0.3
       localhost234,jobserver2.domain.com:7003,10.0.0.3

RETURN VALUE

       gearman_worker_add_server() and gearman_worker_remove_servers() return gearman_return_t.

HOME

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0.33								   May 04, 2012 				      GEARMAN_WORKER_ADD_SERVER(3)