How to let a RFA message of a large map e.g. 500000 mapEntries go through ADH/ADS to the client

john.zhang
john.zhang Newcomer
in TREP Infrastructure

How to let a RFA message of a large map e.g. 500000 mapEntries go through ADH/ADS to the client. After the message sent to the adh/ads for a while, the client will get A27 Message Ordering' error

The Interactive Provider is an C++ application sending messages via RFA to adh/ads and client e.g. rmdstestclient. Each mapEntry only has a key. Tried to both usePointToPointData False or True in rmds.cpd of adh/ads, doesn't help.

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  • zoya faberov
    zoya faberov ✭✭✭✭✭
    Answer ✓

    Hello @john.zhang,

    Believe you will have a very large refresh message as a result, and you are looking to fragment it within the provider, sending "complete" with the last part/fragment of the refresh.

    RFA C++ SDK 8.0 includes example "Provider_interactive" that may be helpful to review as fragmentation implementation is included, and some code from this example can be incorporated into your provider.

    The are complete details on fragmentation in RFA C++ Developer Guide

    As I was reviewing RFA guide, I see a mention "A single fragment of a Map may contain up to 64K entries.". I.e. 500K entries map will need to be fragmented by the provider.

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