Why the connection disconnected at 10:46 yesterday?

Raj.Huang

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).

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Accepted answers

pimchaya.wongrukun01

Hello @Raj.Huang

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.

All comments

pimchaya.wongrukun01

Hello @Raj.Huang

Raj.Huang

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

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

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

Raj.Huang

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

Is there any Java config ? like

config.traceToStdout(1);

pimchaya.wongrukun01

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

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

pimchaya.wongrukun01

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.

Raj.Huang

OK, thank you a lot !

Raj.Huang

Hi, @pimchaya.wongrukun01,

I found I can't output the log to file, it only shows in the eclipse console. Do you know the reason? Please help me.

pimchaya.wongrukun01

EMA writes log on the console not a file. This is expected behaviors. You should re-direct console output to a file by setting in Eclipse.

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