Filter
Top Products
In this environment, you may experience difficulty starting the both the connector
controller (on the server side) and the connector (on the client side) due to memory
use within the WebSphere MQ client. If your installation uses less than 768M of
process heap size, IBM recommends that you set:
v The LDR_CNTRL environment variable in the CWSharedEnv.sh script.
This script resides in the \bin directory below the product directory. With a text
editor, add the following line as the first line in the CWSharedEnv.sh script:
export LDR_CNTRL=MAXDATA=0x30000000
This line restricts heap memory usage to a maximum of 768 MB (3 segments *
256 MB). If the process memory grows more than this limit, page swapping can
occur, which can adversely affect the performance of your system.
v The IPCCBaseAddress property to a value of 11 or 12. For more information on
this property, see the System Installation Guide for UNIX.
Notes:
v If your installation uses more than 768M of process heap size, this resolution
would adversely affect product performance.
v If you run on AIX 4.3.3, you do not need to set the LDR_CNTRL environment
variable. However, you must set IPCCBaseAddress to a value of 11 or 12.
DuplicateEventElimination
Setting this property to true enables a JMS-enabled connector with a non-JMS
event store to ensure that duplicate events are not delivered to the delivery queue.
To make use of this feature, during connector development a unique event
identifier must be set as the business object’s ObjectEventId attribute in the
application specific code.
This property can also be set to false.
Note: When DuplicateEventElimination is set to true, you must also configure the
MonitorQueue property to enable guaranteed event delivery.
FaultQueue
If the connector experiences an error while processing a message then the
connector moves the message to the queue specified in this property, along with a
status indicator and a description of the problem.
The default value is CONNECTORNAME/FAULTQUEUE.
JvmMaxHeapSize
The maximum heap size for the agent (in megabytes). This property is applicable
only if the RepositoryDirectory value is <REMOTE>.
The default value is 128m.
JvmMaxNativeStackSize
The maximum native stack size for the agent (in kilobytes). This property is
applicable only if the RepositoryDirectory value is <REMOTE>.
The default value is 128k.
Appendix A. Standard configuration properties for connectors 41