WIS_CACHE_THRESHOLD

Summary

This attribute defines the number of items that must exist in a work queue for it to be cached when the WIS process starts normally.

Applies To

This attribute can only be used when a WIS process starts normally.

Permissible Values

This attribute must be an integer in the range 0 to 500000.

Default Value

This attribute is not defined on a newly installed iProcess Engine node. In this case, the default value is:

Machine ID	Process	Instance	Value
0	WIS	0	1000

This attribute only appears in the output of the SHOW_ALL_ATTRIBUTES command if you have explicitly assigned a value to it using the SET_ATTRIBUTE command. The default setting is not displayed.

Notes

A queue is usually cached in the following two situations:

• When the WIS process first handles the queue (either on startup or after a MoveSysInfo operation).

•

When the queue is first accessed by a client application.

This attribute is only used when the WIS process starts normally in conjunction with the WISCACHE queue attribute to control whether a queue is cached:

• If the value of WISCACHE is set to YES, the WIS process caches the queue (irrespective of how many work items there are in the queue).

• If WISCACHE is not created or set, the WIS process caches the queue if the number of work items in the queue equals or exceeds the value of the WIS_CACHE_ITEM attribute.