CACHEREORDER NOCACHEREORDER statements
Use the CACHEREORDER statement to enable system-wide cache reordering for the resolver. Use the NOCACHEREORDER statement to disable system-wide cache reordering.
Tip: If
you specify the NOCACHE statement, the CACHEREORDER and NOCACHEREORDER
statements are ignored.
When system-wide cache reordering is enabled, the resolver reorders the list of cached IP addresses after retrieving the cached information in response to a host name resolution request. The list is reordered in a round-robin manner. See Cache reordering in z/OS Communications Server: IP Configuration Guide for more information.
The default value is NOCACHEREORDER.
Syntax
.-NOCACHEREORDER-. >>-+----------------+------------------------------------------>< '-CACHEREORDER---'
Parameters
This statement has no parameters.
Usage notes
- You can change the value of CACHEREORDER or NOCACHEREORDER dynamically by using the MODIFY RESOLVER,REFRESH,SETUP=resolver_setup_filename command. Changing the value of CACHEREORDER or NOCACHEREORDER dynamically has no affect on existing resolver API requests, but the new value applies to new resolver API requests that are processed after the MODIFY command completes.
- Resolver address sorting algorithms, such as the TCPIP.DATA
SORTLIST statement, can further modify the list of cached IP
addresses. For more information, see Cache reordering and sorting in z/OS Communications Server: IP Configuration Guide.
