EZY1365E: mm/dd/yy hh:mm:ss LISTENER transactionid taskno IS NOT ACCEPTING REQUESTS ON PORT port

Explanation

The listener identified by the specified transaction ID and task number cannot process inbound connections because the listener's socket descriptor table is full.

In the message text:

mm/dd/yy: The date (month/day/year) of the message.
hh:mm:ss: The time (hours:minutes:seconds) of the message.
transactionid: The name of the listener's transaction that cannot accept new client connections.
taskno: The task number assigned by CICS®.
port: The port number on which the specified listener is listening.

Example

EZY1365E 01/19/06 10:07:33 LISTENER CSKL 0000079 IS NOT ACCEPTING REQUESTS AT  PORT   3010

System action

The listener does not accept new connections until the number of socket descriptors currently being processed by the listener is less than the value specified by the lesser of either the system MAXFILEPROC parameter or the listener user ID's FILEPROCMAX parameter.

Operator response

Contact the system programmer.

User response

No action needed.

System programmer response

Perform any of the following actions as appropriate:

If the ERRORTD log indicates that the child server transaction failed to take the client's given socket, then investigate the CICS region where the child server transaction runs.
See the steps for diagnosing TCP/IP clients that are unable to connect in z/OS Communications Server: IP Diagnosis Guide for information about diagnosing child server transactions problems.

See http://www-01.ibm.com/software/htp/cics/library/ for information about CICS/TS problems.
If the listeners NUMSOCK value is greater than or equal to the value specified by the MAXFILEPROC parameter, then perform one of the following actions:
- Set the NUMSOCK value to be less than the MAXFILEPROC value using either the EZACICD macro or the EZAC configuration transaction and then restart the listener. See the information about Configuring the CICS TCP/IP environment for more information about using the EZACICD macro and the EZAC configuration transaction.
- Set the MAXFILEPROC value to be greater than the NUMSOCK value using the SETOMVS system command. See the SETOMVS command information in z/OS MVS System Commands for information about dynamically changing the MAXFILEPROC option that z/OS® UNIX System Services is currently using.
If the listener user ID FILEPROCMAX value is less than the value specified by the NUMSOCK parameter, set the FILEPROCMAX value to be greater than the value specified by the NUMSOCK parameter. For more information about the FILEPROCMAX specification, see the documentation provided for the SAF product that is in use on your system. If you are using RACF®, see the information about the FILEPROCMAX parameter in z/OS Security Server RACF Security Administrator's Guide.

Problem determination

See the system programmer response.

Source

z/OS Communications Server TCP/IP: CICS Socket Interface and API

Module

EZACIC02

Routing code

Descriptor code

Automation

This message is sent to the system console and to the CICS transient data queue that is specified by the IP CICS Sockets ERRORTD configuration option.