DFHSO0118 applid The BPX1GNI call to resolve IP address ip_address to a host name took over 3 seconds to complete.

Explanation

CICS has issued the Unix System Services function BPX1GNI to resolve the IP address ip_address to a host name. This call took more than three seconds. During this time, the sockets TCB was blocked, and no socket IO was possible.

System action

CICS continues.

User response

The BPX1GNI function will usually perform a name server reverse lookup to resolve the IP address into a host name. This call took over three seconds to complete. The BPX1GNI function is most commonly driven by EXEC CICS EXTRACT TCPIP CLIENTNAME.

If a SYSTCPD DD name has been defined in the CICS job, check that the file it references correctly defines the name server. If SYSTCPD is not used, then check that the name server defined to TCP/IP in the /etc/resolv.conf file is valid and responding correctly. You can issue the TSO NSLOOKUP command to query the name server. If the name server is defined correctly to CICS, then contact the administrator to determine why the IP address lookup has not completed within 3 seconds.

The TCP/IP RESOLVERTIMEOUT parameter can be used to control the duration of a BPX1GNI call.

Module

DFHSOIS

XMEOUT parameters/Message inserts

  1. applid
  2. ip_address

Destination

Console