OMM Provider settings to avoid RSSL buffer failures

sbutler9
sbutler9 Newcomer
in RFA

We have a high throughput provider application that from time to time disconnects after an OMM Error "Attempt to get rssl buffer failed" is triggered. From what we understand, this can occur when there are issues sending data between the provider and the ADH (network blip, capacity issues, ...).

We increased \Connections\<conn>\guaranteedOutputBuffers to 10000.

a) Apart from the information in the RFA Config Guide, is there any guidance for setting connection parameter values?
b) Should maxOutputBuffers be increased to a similar value to the guaranteed buffers?
c) What value do recvBufferSize/sendBufferSize take when not defined (what is the default size)?
d) What is the impact of setting disconnectOnGetSubmitBufFailed to false (does it block/drop message)?

We are using the RFA 8.1.0 C++ sdk.

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  • umer.nalla
    umer.nalla LSEG
    Answer ✓

    Hi @sbutler9

    Yes, you can also increase maxOutputBuffers - values as high as 20,480 (for both this and guaranteedOutputBuffers) is not unreasonable.

    The default value for the recv and send buffers will be specific your local PC/Server environment.

    Setting disconnectOnGetSubmitBufFailed would result in the connection being dropped if RFA fails to get enough buffers for submitting messages.


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