2025 (07E9) (RC2025): MQRC_MAX_CONNS_LIMIT_REACHED

Explanation

The MQCONN or MQCONNX call was rejected because the maximum number of concurrent connections has been exceeded.

On z/OS®, the connection limits are 32767 for both TSO and Batch.
On Multiplatforms, this reason code can also occur on the MQOPEN call.
When using Java applications, the connection manager might define a limit to the number of concurrent connections.
Note: The application using IBM® MQ might have delegated the management of connections to a framework or connection pool, for example, a Java EE application server, an application framework such as Spring, an IBM Container (for IBM Cloud®), or a combination of these. For more information, see IBM MQ classess for JMS object pooling.

MQCC_FAILED

Either increase the size of the appropriate parameter value, or reduce the number of concurrent connections.