Specify multiple ADS hosts in OMMConsumer config

m87
m87
in Elektron

Hi,

when creating a OMMConsumer I'm able to specify host and port in OmmConsumerConfig. Is there a way of specifying multiple hosts (ADS's)?

Should I perhaps use EmaConfig.xml? If yes, could you point me which section/tags are responsible for that.

Thank you,

Miro

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Best Answer

  • moragodkrit.chumsri_1
    moragodkrit.chumsri_1
    Answer ✓

    @m87

    You can use ChannelSet and specifies a comma-separated
    set of channels names. Each listed channel name should have an appropriate <Channel>
    entry in the ChannelGroup. Channels in the set will be tried with
    each reconnection attempt until a successful connection is made. Below is the
    example configuration

    <ConsumerGroup>
    	<ConsumerList>
    		<Consumer>
    		<Name value="Consumer_1"/>
    		<!-- ChannelSet is optional -->
    			<ChannelSet value="Channel_1, Channel_2"/>
    			<!-- Logger is optional: defaulted to "File + Success" -->
    			<Logger value="Logger_1"/>
    			<!-- Dictionary is optional: defaulted to "ChannelDictionary" -->
    			<Dictionary value="Dictionary_1"/>
    		</Consumer>
    	</ConsumerList>
    </ConsumerGroup>


    <ChannelGroup>
    	<ChannelList>
    		<Channel>
    			<Name value="Channel_1"/>
    			<ChannelType value="ChannelType::RSSL_SOCKET"/>
    			<Host value="localhost"/>
    			<Port value="14002"/>
    		</Channel>
    		<Channel>
    			<Name value="Channel_2"/>
    			<ChannelType value="ChannelType::RSSL_SOCKET"/>
    			<Host value="122.1.1.100"/>
    			<Port value="14008"/>
    		</Channel>
    	</ChannelList>
    </ChannelGroup>

    If you application connecting to the server on Channel_1
    and then it down, EMA will connect to other Channel in the
    ChannelSet configuration.

    You can find more details from EMACPP_ConfigGuide.pdf section 3.1.4, 3.3.6 and 3.3.7.

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