Listen (-LSN)
Use the Listen adapter command (-LSN) for data sources to dictate the length of time (in seconds) that the IBM® MQ queue manager allows the adapter to wait for a message to be received. Map execution is suspended until the message is received or until the specified time lapses.
-LSN {0|S|wait_time_in_sec}
- Option
- Description
- 0
- Do not wait at all. If there is no input available, the adapter does not wait for more messages.
- S
- This is an infinite wait time.
- wait_time_in_sec
- This is the number of seconds that the adapter waits (in seconds) for a message.
If the Listen adapter command (-LSN) is not issued and the message is not available for the adapter to retrieve immediately, the map completes, but returns the following warning in the audit log:
(2033) MQSeries Warning: No message available.