Is it possible for an EMA custom implementation to failover from RTDS to RTO?

erol.komac

Hi experts,

Can an EMA application that connects to ADS1 and ADS2 in RTMDS, in case these fail for some reason, automatically switch to an RTO service id connectivity? Is this possible via a standard configuration? If yes can you share a reference config file? If not, what is the best practice to detect and switch programatically?

Thank you,

Erol

Jirapongse

@erol.komac

Thank you for reaching out to us.

It is possible in EMA C++. You can use the ChannelSet to specify a list of channels. For example:

		<Consumer>
			<Name value="Consumer_2"/>
			<!-- ChannelSet specifies an ordered list of Channels to which OmmConsumer will attempt to	-->
			<!-- connect, one at a time, if the previous one fails to connect			-->
			<ChannelSet value="Channel_1, Channel_4"/>

Channel_1 connects to RTDS and Channel_4 connects to RTO.

Then, use the Cons480 example to specify credentials for each channel. For example:

-LoginMsg name:<username> channelList:Channel_1 -OAuthCred clientId:<client-id> clientSecret:<client-secret> channelList:channel_4

I checked and found that EMA Java and EMA C# still don't support this feature.