z/OS Communications Server: IP Messages Volume 2 (EZB, EZD)
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EZBH018E

z/OS Communications Server: IP Messages Volume 2 (EZB, EZD)
SC27-3655-01

EZBH018E
The resolver timeout value is greater than the deftype specified value of timeout when the autonomic quiescing of unresponsive name servers function is active.

Explanation

Check CSRES_AUTOQ_TIMEOUT detected that the RESOLVERTIMEOUT statement is specified with a value greater than the timeout value specified for the check when the autonomic quiescing of unresponsive name servers function is active. This function is enabled by specifying the AUTOQUIESCE operand on the UNRESPONSIVETHRESHOLD resolver setup statement.

The default value for the RESOLVERTIMEOUT statement is 5 seconds. When the autonomic quiescing of unresponsive name servers function is active, the resolver polls unresponsive name servers every six seconds. The resolver uses the value from the RESOLVERTIMEOUT statement in the global TCPIP.DATA file, or the default value, to determine how long to wait for a response to the poll. If you specify a value for the RESOLVERTIMEOUT statement that is greater than 5 seconds, the resolver will be less efficient when polling unresponsive name servers.

In the message text:
deftype
Indicates whether the maximum value for this check has been overridden by the user.
OWNER
The default maximum check value has not been overridden by the user.
INSTALLATION
The maximum check value has been overridden by the user.
timeout
The maximum check value against which the resolver timeout value is compared.

System action

The system continues processing.

Operator response

If you want to continue using the autonomic quiescing function with the current RESOLVERTIMEOUT value, no action is needed.

If you no longer want to use the autonomic quiescing function, or the RESOLVERTIMEOUT value must be less than or equal to the timeout value, contact the system programmer.

System programmer response

If you want to use the autonomic quiescing function with the current RESOLVERTIMEOUT value, no action is needed.

If you want to use the autonomic quiescing function with a RESOLVERTIMEOUT value less than or equal to the timeout value, change the value on the RESOLVERTIMEOUT statement in the global TCPIP.DATA file. After the global TCPIP.DATA file has been corrected, instruct the operator to issue a MODIFY RESOLVER,REFRESH command to update the value.

If you no longer want to use the autonomic quiescing function, remove the AUTOQUIESCE operand from the UNRESPONSIVETHRESHOLD resolver setup statement in the resolver setup file. After the resolver setup file has been corrected, instruct the operator to issue a MODIFY RESOLVER,REFRESH,SETUP=setup_file_name command to stop the autonomic quiescing function.

User response

Not applicable.

Problem determination

Not applicable.

Source

z/OS® Communications Server TCP/IP

Module

EZBHCCK2

Routing code

Not applicable.

Descriptor code

3

Automation

This message is a candidate for automation in cases where different global TCPIP.DATA files exist.

Example

EZBH018E - The resolver timeout value is greater than the installation specified value of 5 when the 
autonomic quiescing of unresponsive name servers function is active

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