I guess you would have compiled the server separately on each of these nodes. Just try compiling on one node and copy on the other.
-Abhai -----Original Message----- From: Anil Soni [mailto:[email protected]] Sent: Wednesday, November 04, 2009 3:08 AM To: [email protected] Subject: Load balancing DeltaManager problem. I was doing load balancing using two OFBiz servers in Session Replication mode with Apache HTTP Server. Servers run properly in load balanced mode, If I shut down one server in the middle of browser session, the other OFBiz server continues the browser session without any problem. User login information also persistes in the session, so the second server does not ask for login again. But when I go for placing the order, and close the server in middle of the check out process, rest all the details persist but cart comes out to be empty , and if there is some promotional item present in the cart, that promotional item persists inside the cart when second server continues browser session but all the other items get removed. And I was getting this exception : 2009-10-29 12:06:49,971 (pool-2-thread-6) [ DeltaManager.java:1329:ERROR] Manager [/ordermgr]: Unable to receive message through TCP channel java.io.InvalidClassException: org.ofbiz.order.shoppingcart.ShoppingCart; local class incompatible: stream classdesc serialVersionUID = 326289553356146708, local class serialVersionUID = -202274068516513625 at java.io.ObjectStreamClass.initNonProxy(Unknown Source) at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source) at java.io.ObjectInputStream.readClassDesc(Unknown Source) at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source) at java.io.ObjectInputStream.readClassDesc(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at javolution.util.FastMap.readObject(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at java.io.ObjectStreamClass.invokeReadObject(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at org.apache.catalina.ha.session.DeltaRequest$AttributeInfo.readExternal(DeltaRequest.java:361) at org.apache.catalina.ha.session.DeltaRequest.readExternal(DeltaRequest.java:255) at org.apache.catalina.ha.session.DeltaManager.deserializeDeltaRequest(DeltaManager.java:619) at After some debugging I found that It was problem of DeltaManager, so I used BackupManager as manager-class and set the value of apps-distributable="true" and apps-cross-context="true".After these settings load balancing in replication mode is working properly. Now my question is that that why we are using DeltaManager as manager-class in ofbiz-containers.xml ? Thanks & Regards, Anil Soni [email protected] Tel : 91-22-6795 4324 Mobile : 9930302283 ______________________________________________________________________ http://www.mindtree.com/email/disclaimer.html
