question

Upvotes
Accepted
16 1 0 3

What setting is needed to allow the number of data stream opens for an adh service to increase to an expected large number?

The adhmon shows in the Data Streams page, opens can only reach to about 500000, although the client subscribes for a million or more. The client also gets a lot of status messages

Text: "F6: Cannot Preempt Item"

Text: "F7: Item Preempted")

So that even though the normalRequests can increase, but data stream opens can only stay to about 500000. The Interactive Provider is a C++ application with RFA.

elektronrefinitiv-realtimetrepinfrastructure
icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

1 Answer

Upvotes
Accepted
45.3k 103 44 60

@john.zhang

It could be maxCache configuration in ADH or the OpenLimit sent by the interactive provider.

    maxCache:


    This parameter allows to override/lower the maximum cache size
    supported by a source application on TREP. If no value is specified,
    then the application specified open limit will be used by the ADH.


    Note: This parameter must be specified, if it is not provided
          programmatically by the source application.


    Default value: NONE - OPTIONAL


openlimit.jpg (52.0 KiB)
icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

What is the document you indicated?

OpenLimit is in the RFA RDM usage guide. maxCache is in the ADHCPD_Install_Supplement document.