JR40061: CMVC 211774 - ALLOW THE CLIENT TO CHOSE WHICH CUSTOM COMMANDS THEY DO NOT WANT SERIALIZE.
Direct links to fixes
Closed as program error.
By design, concurrent requests from the same registered shopper are synchronized, executed one at a time, to avoid possible deadlocks and optimistic locking exceptions when concurrent updates are made. However, not all commands perform updates and thus may not require this level of synchronization. This iFix allows you to specify a list of ControllerCommand classes that can be safely executed concurrently by the same user.
USERS AFFECTED: All users PROBLEM ABSTRACT: Concurrent execution of controller commands by the same user is not possible. BUSINESS IMPACT: The overall impact of the problem depends on whether the clients business requirements expect requests to be executed concurrently for the same user. If they do, then applying this iFix will allow the specified requests to be executed concurrently, to potentially achieve lower response times. RECOMMENDATION:
This iFix delays or removes synchronization from HTTP requests unless and until a ControllerCommand is executed during the request. If the first ControllerCommand executed appears in the configured list, or if no ControllerCommand is executed, then synchronization is not performed for the request. By default, there is no change in behaviour. To get the new behaviour, specify the following tag in the InstanceProperties tag of the wc-server.xml file: <com.ibm.commerce.datatype.ActivityGUIDLock noLockControllerCommands=" com.myCompany.myPackage1.MyControllerClassName1 com.myCompany.myPackage2.MyControllerClassName2 " /> where the specified value for the noLockControllerCommands setting is a white-space delimited list of class names of ControllerCommand classes for which synchronization should not occur. If it is missing or blank, there is no change in behaviour. If it is specified, then synchronization locks are not obtained for a request until the first ControllerCommand is executed, and only when that command is not an instance of one of the specified ControllerCommand classes. ------------------------------------------------------------- The latest available maintenance information can be obtained from the Recommended Fixes for WebSphere Commerce technote: http://www.ibm.com/support/docview.wss?rs=3046&uid=swg21261296
Reported component name
WC BUS DEV ED W
Reported component ID
Last modified date
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fixed component name
WC BUS DEV ED W
Fixed component ID
Applicable component levels
More support for:
WebSphere Commerce Developer Enterprise
Software version: 7.0
Reference #: JR40061
Modified date: 28 October 2011