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IBM does not intend to provide a solution to this request at this time, so it is being closed. While we agree with the request, we do not currently plan to implement because this request is low priority since it has been open a few years and it still has a low number of votes.
IBM will use this request as input to planning but no commitment is made or implied. This request will be updated in the future if IBM implements it. IBM will use votes and comments from others in the community to help prioritize this request.
Hi,
here is the configuration we have :
Domain name server :
Internet address ‘x.x.x.x'
Internet address ‘x.x.x.x'
Internet address ‘x.x.x.x'
Port : 53
Protocol : UDP
Initial domain name server : First
Domain name server retry :
Number of retries : 2
Initial time interval : 2
The name resolution take more of the double of the time when a name server is unavailable. Even if it's the first or the secondary or the third, it's always the same. If a name server is unavailable, we need to delete within the configuration to recover the resolution time. We suggest you to test the server and if a server is unavailable, you don't need to continu to test the name resolution on it because you decrease the performance.
We use Wish application (developped by IBM medical) and the connexion to this application go from instantaneous to a 10-15 seconds delay. The problem is that we open the application from other applications and each time it's a new connection. The delay become very problematic for our Customers.
Regards,
Due to processing by IBM, this request was reassigned to have the following updated attributes:
Brand - Servers and Systems Software
Product family - Power Systems
Product - IBM i
Component - Networking
Operating system - IBM i
Source - None
For recording keeping, the previous attributes were:
Brand - Servers and Systems Software
Product family - Power Systems
Product - IBM i
Component - Core OS
Operating system - IBM i
Source - None
How long the IBM i resolver spends doing a name look up varies based on many things. How long is the increase in the name look up time?
There could be inefficiencies on one or more values on option 12 of CFGTCP that are only noticed when one of the DNS servers is not available.
Domain name server retry (DMNSVRRTY) should have 2 and 2. If either number is larger it can result in long delays.
The RFE description implies a reverse look up (IP address is known, host name is unknown) so Domain search list (DMNSCHLIST) having multiple entries should not be a factor in the number of queries generated.