RFA MD subscriber - No quality of service

We have RFA C++ based subscriber application.
The application is getting following message
on subscription

INFO: Subject: xxx state: 4 status: "No Quality of Service is available to
process subscription, timeout expired" status code: 3

Can you please explain when we can get "No quality of service" status?

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Accepted answers

Jirapongse

The status message "No Quality of Service is available
to process subscription, timeout expired" could be generated by RFA in these 4
situations.

1. RFA
subscribes market data from the service that is currently down

xxx Status Status: No Quality of Service is available to
process subscription, timeout expired State: 3 Status Code: 3

2. RFA
subscribes market data from the service that doesn’t exist

xxx Status Status: No Quality of Service is available to
process subscription, timeout expired State: 3 Status Code: 3

3. RFA
subscribes market data and the specified QoS doesn’t match the QoS provided by
the service

For example, the Qos of the service is real-time/tick-by-tick
but the application specifies the best and worst QoS to be lower than
real-time/tick-by-tick.

_pQoS->setBestTimeliness(rfa::common::QualityOfServiceRequest::realTime);
_pQoS->setWorstTimeliness(rfa::common::QualityOfServiceRequest::delayed);
_pQoS->setBestRate(rfa::common::QualityOfServiceRequest::justInTimeFilteredRate);
_pQoS->setWorstRate(rfa::common::QualityOfServiceRequest::slowestRate);
_pMarketDataItemSub->setRequestedQualityOfService(*_pQoS);

xxx Status Status: No Quality of Service is available to
process subscription, timeout expired State: 3 Status Code: 3

4. The most
common issue is that RFA C++ attempts to make request but the infrastructure
fails to deliver the image within the recoveryTimeout + waitTimeout interval,
RFA will mark the item "Closed Recover" (State = 4)

xxx Status Status: No Quality of Service is available to
process subscription, timeout expired State: 4 Status Code: 3

In this scenario, state is ClosedRecover (4) and
status code is NoResources (3). This could be the forth scenario. If the
application subscribes to a lot of items, you may consider tuning the value of
\Sessions\<session name>\recoverTimeout and \Sessions\<session
name>\waitTimeout in RFA configurations.

All comments

Jirapongse

The status message "No Quality of Service is available
to process subscription, timeout expired" could be generated by RFA in these 4
situations.

1. RFA
subscribes market data from the service that is currently down

xxx Status Status: No Quality of Service is available to
process subscription, timeout expired State: 3 Status Code: 3

2. RFA
subscribes market data from the service that doesn’t exist

xxx Status Status: No Quality of Service is available to
process subscription, timeout expired State: 3 Status Code: 3

3. RFA
subscribes market data and the specified QoS doesn’t match the QoS provided by
the service

For example, the Qos of the service is real-time/tick-by-tick
but the application specifies the best and worst QoS to be lower than
real-time/tick-by-tick.

_pQoS->setBestTimeliness(rfa::common::QualityOfServiceRequest::realTime);
_pQoS->setWorstTimeliness(rfa::common::QualityOfServiceRequest::delayed);
_pQoS->setBestRate(rfa::common::QualityOfServiceRequest::justInTimeFilteredRate);
_pQoS->setWorstRate(rfa::common::QualityOfServiceRequest::slowestRate);
_pMarketDataItemSub->setRequestedQualityOfService(*_pQoS);

xxx Status Status: No Quality of Service is available to
process subscription, timeout expired State: 3 Status Code: 3

xxx Status Status: No Quality of Service is available to
process subscription, timeout expired State: 4 Status Code: 3

chawawut.somsaman

In this situation ,
4. The most common issue is that RFA C++ attempts to make request but the infrastructure fails to deliver the image within the recoveryTimeout + waitTimeout interval, RFA will mark the item "Closed Recover" (State = 4)

Is there a way to improve the situation from the infra perspective?

Also , would RFA Java see the same error log & what's the RFA tuning parameter for Java?

fiona.morgan-ext

@jirapongse.phuriphanvichai, I am having the same issue with the message:

stt item:USDGBP status:No Quality of Service is available to process subscription, timeout expired state:3

However, I have not altered any of the QoS code, I can see that the feed is up (and using tickbytick and realTime) and I know data is exists for this item. I'm using v7.6 C++ with MarketData and SSLED connections. Could you shed any light on what I'm doing wrong/how to correct it?

spawar

jirapongse.phuriphanvichai

I am seeing similar message. Lookin for suggestions to correct the issue. Thanks

12/19 18:21:38.941240 [2]: RfaFeed::ProcessMarketDataEvent(): Buffer Empty for [ELEKTRON_EDGE:ELEKTRON_EDGE.ANY.8795.T]: MsgType: Status, No Quality of Service is available to process subscription, timeout expired

12/19 18:21:38.941254 [6]: ReutersFeed::EmptyBufferReovery(): *** ERROR *** No Record Found for ELEKTRON_EDGE.ANY.8795.T

12/19 18:21:38.941281 [2]: RfaFeed::ProcessMarketDataEvent(): Buffer Empty for [ELEKTRON_EDGE:ELEKTRON_EDGE.ANY.9401.T]: MsgType: Status, No Quality of Service is available to process subscription, timeout expired

12/19 18:21:38.941284 [6]: ReutersFeed::EmptyBufferReovery(): *** ERROR *** No Record Found for ELEKTRON_EDGE.ANY.9401.T

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