IHS与WAS设置loadbalance

一.环境.

  1。服务器

  IHS：IBM_HTTP_SERVER 1.3.28.1

    WAS：IBM WebSphere Application Server 5.1.1.10

   OS：solaris9

   2。网络情况

 WAS上创建了两个server：server1和server2

端口占用情况

IHS：80

server1：9080，9090

server2：9081，9091

二。修改配置文件

1。httpd.conf

在文件末尾加上

LoadModule ibm_app_server_http_module /u02/WebSphere/AppServer/bin/mod_ibm_app_server_http.so
WebSpherePluginConfig /u02/WebSphere/AppServer/config/cells/plugin-cfg.xml
2。plugin-cfg.xml

   <ServerCluster CloneSeparatorChange="false" LoadBalance="Round Robin" Name="ws-lh_Cluster" PostBufferSize="64" PostSizeLimit="-1" RemoveSpecialHeaders="true" RetryInterval="60">
      <Server CloneID="10k66djk2" LoadBalanceWeight="2" ConnectTimeout="0" ExtendedHandshake="false" Name="ws-lh_server1" ServerIOTimeout="0" WaitForContinue="false">
         <Transport Hostname="erpsvr1" Port="9080" Protocol="http"/>
            <Property Name="keyring" Value="/u02/WebSphere/AppServer/etc/plugin-key.kdb"/>
            <Property Name="stashfile" Value="/u02/WebSphere/AppServer/etc/plugin-key.sth"/>
         </Transport>
      </Server>
      <Server CloneID="10k67eta9" LoadBalanceWeight="2" ConnectTimeout="0" ExtendedHandshake="false" name="ws-lh_server2" ServerIOTimeout="0" WaitForContinue="false">
         <Transport Hostname="erpsvr1" Port="9081" Protocol="http"/>
             <Property Name="keyring" Value="/u02/WebSphere/AppServer/etc/plugin-key.kdb"/>
            <Property Name="stashfile" Value="/u02/WebSphere/AppServer/etc/plugin-key.sth"/>
         </Transport>
      </Server>
      <PrimaryServers>
         <Server Name="ws-lh_server1"/>
         <Server Name="ws-lh_server2"/>
      </PrimaryServers>
   </ServerCluster>
3。server.xml

修改server1的server.xml，在<components xmi:type="applicationserver.webcontainer:WebContainer" xmi:id="WebContainer_1" enableServletCaching="false">下增加一行

<properties xmi:id="WebContainer_1" name="HttpSessionCloneId" value="10k66djk2" required="false"/>

修改server2的server.xml，在<components xmi:type="applicationserver.webcontainer:WebContainer" xmi:id="WebContainer_1" enableServletCaching="false">下增加一行

<properties xmi:id="WebContainer_1" name="HttpSessionCloneId" value="10k67eta9" required="false"/>

注意：HttpSessionCloneId的value值要与plugin-cfg.xml时的cloneid值对应起来。

三。验证

    一次登录系统，产生的JSESSIONID值是0000kQiqLt4ViWj9lE7l_gA_Tgg:10k67eta9

  又一次登录系统，产生的JSESSIONID值是00009TO3s1uNCQdNn-pXvqIUU_B:10k66djk2

说明配置已经起了作用，IHS会根据JSESSIONID的10k67eta9或10k66djk2把请求发送到WAS的server2或server1