MQBUFSZ and UBUFSZ parameters: Difference between revisions

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==Description==
==Description==
The <var>MQBUFSZ</var> and <var>UBUFSZ</var> parameters, which are aliases of each other, specify the default [[MQ/204 data conversion and handling#Data handling|Universal Buffer]] size.  
The <var>MQBUFSZ</var> and <var>UBUFSZ</var> parameters, which are aliases of each other, specify the default [[MQ/204 data conversion and handling#Data handling|Universal Buffer]] size.  
The Universal Buffer, or user buffer, is enlarged as needed, but you cannot make it smaller than the value of
The Universal Buffer, or user buffer, is enlarged as needed, but you cannot make it smaller than the value of <var>UBUFSZ</var>.  
<var>UBUFSZ</var>.  


The physical size limit for the Universal Buffer is 2 gigabytes, and the minimum value for UBUFSZ is 0.  
The physical size limit for the Universal Buffer is 2 gigabytes, and the minimum value for <var>UBUFSZ</var> is 0.  


The buffer is allocated
The buffer is allocated only if referenced in a SOUL request. It is released when the user logs out.
only if referenced in a User Language request. It is released when the user logs out.


[[Category:System parameters]]
[[Category:System parameters]]
[[Category:Parameters]]
[[Category:Parameters]]

Latest revision as of 16:50, 16 October 2017

Summary

Default value
1024 bytes
Parameter type
System
Where set
On User 0's parameter line, in the CCAIN parameters
Related products
All
Introduced
Model 204 V4.2 ( UBUFSZ documented at V6.1 )

Description

The MQBUFSZ and UBUFSZ parameters, which are aliases of each other, specify the default Universal Buffer size. The Universal Buffer, or user buffer, is enlarged as needed, but you cannot make it smaller than the value of UBUFSZ.

The physical size limit for the Universal Buffer is 2 gigabytes, and the minimum value for UBUFSZ is 0.

The buffer is allocated only if referenced in a SOUL request. It is released when the user logs out.