When the
number of concurrent lookups becomes high, perhaps when a client or bean does
repeated lookups without caching, the likelihood of encountering one of these
nameserver “blips” increases. Possible measures to consider are:
- Install a machine of higher capacity to run the name server.
- Code your applications to recognize this possibility and to retry when
this error is encountered.
- Setup the MVS system so that the most commonly used addresses are included
in its /etc/hosts file. This bypasses the nameserver lookup for
these names and simply uses the address coded in the file.
- Rather than specify IP addresses by name, specify them by number. (However,
this solution is not advisable in a production environment.)