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  • Why have I run out of XCF groups? 12 October 2017
    I was talking to a customer today about a recent problem where they ran out of XCF groups and as a result couldn’t start up their queue managers. The fix for this was to reformat their sysplex couple datasets using a higher value for the ITEM NAME(GROUP) NUMBER( xxx ) parameter. Once they had got […] […]
    MattLeming
  • Should I mix persistent and non persistent messages on a queue? 11 October 2017
    This question came up and caused a lot of discussion, as the answer is not a simple yes or no.  If you are interested in making your shared queue queue manager recover a little faster – there is something you can do. Most “simple” applications use persistent or non persistent, but not both. (If they […] […]
    ColinPaice
  • What authorities to grant for non-mqm users to perform Managed File Transfer actions? 5 October 2017
    IBM Support often receive requests from customers for clarification on which IBM MQ Managed File Transfer (MFT) authorities are required to manage transfers with a user account that is not in the mqm group. Authorities for MFT are explained in several places in the IBM Knowledge Center for different features of the product but there […] […]
    Gantigmaa_Selenge
  • Configuring Activation Specifications for use with a Highly Available IBM MQ infrastructure 27 September 2017
    Authors: Paul Titheridge and Pete Siddall Summary While there are restrictions, with considered design it is possible for application server activation specifications to work reliably with a highly available IBM MQ messaging configuration to ensure reliable and available message-driven bean (MDB) processing. Here we look at the pitfalls and technologies whic […]
    Pete Siddall
  • How the MQ Managed File Transfer agent property “maxFilesForTransfer” works 26 September 2017
    Someone was asking me the other day about the agent property maxFilesForTransfer. According to the information in the The agent.properties file topic in the MQ sections of IBM Knowledge Center, the property allows users to specify the maximum number of transfer items (files or messages) that can be included in a single managed transfer, and […] […]
    Paul_Titheridge