Why the connection disconnected at 10:46 yesterday?

Raj.Huang · September 2017

Normally, it will reconnect using emaj as shown in the follwing capture.

However, I don't know what happened yesterday. There is no logs, it just can't receive data(Foreign exchange).

pimchaya.wongrukun01 · September 2017

The error “Network is unreachable: no further information”
seemed that there was a network problem at that time. The problem made EMA
application could not connect to the server so the server could not send data
to the application. I suggest you should contact your company’s network team to
investigate the network between the application to the server.

Raj.Huang · September 2017

https://community.developers.refinitiv.com/discussion/comment/18212#Comment_18212

Thanks for your answer. I know the error 'Network is uncreachabke....', that is the normal error, I did it intentionlly. But at 10:46 yesterday, there are no logs like that. And it didn't reconnect itself, it just no data antmore util I restart my application.

pimchaya.wongrukun01 · September 2017

https://community.developers.refinitiv.com/discussion/comment/18215#Comment_18215

Hello @Raj.Huang

I suggest you set XmlTraceToStdout to 1 in EmaConfig.xml
located in the application’s run directory. For example:

<Consumer>
  <Name value="Consumer_1"/>
  ...
  <XmlTraceToStdout value="1"/>
</Consumer>

This will enable EMA
traces its messages (received and sent messages) in XML format to stdout. When the problem occurs again, we can check in the log messages what happens.

pimchaya.wongrukun01 · September 2017

https://community.developers.refinitiv.com/discussion/comment/18217#Comment_18217

If you enable it successfully, you should see a refresh message sent from the server that EMA traces. For example:

Raj.Huang · September 2017

https://community.developers.refinitiv.com/discussion/comment/18217#Comment_18217

Thanks! But I don't use EmaConfig.xml to config my application. I just use the default configuration.

OmmConsumerConfig config = EmaFactory.createOmmConsumerConfig();
config.host(sourceHost + ":" + sourcePort);
config.username(sourceUserName);

Raj.Huang · September 2017

https://community.developers.refinitiv.com/discussion/comment/18217#Comment_18217

Is there any Java config ? like

config.traceToStdout(1);

pimchaya.wongrukun01 · September 2017

https://community.developers.refinitiv.com/discussion/comment/18221#Comment_18221

No. EMA provides XmlTraceToStdout for tracing.

Please put EmaConfig.xml in the application run directory.
Your given source code will override Consumer_1 node which is default.
Then, set XmlTraceToStdout to be 1 in the Consumer_1 node(the node which has <Name value="Consumer_1"/>) as shown in the example
above.

Raj.Huang · September 2017

https://community.developers.refinitiv.com/discussion/comment/18221#Comment_18221

Hi, @pimchaya.wongrukun01,
it worked! But if the application dies again, what will I see in the log?

pimchaya.wongrukun01 · September 2017

https://community.developers.refinitiv.com/discussion/comment/18224#Comment_18224

There are several causes that the application does not receive data so I cannot tell you for now what you will see in the log. If the problem occurs again, please send me the trace log. Then, I will analyze the file to help you to find out the root cause.