query symbol through ELEKTRON_DD service is not stable

272094831

when I query symbol through ELEKTRON_DD service in my server, one minute it works, the next it doesn't

the error details as following

Jirapongse

@272094831

Thank you for reaching out to us.

From the call stack, I assume that the application uses the EMA message outside the EMA callback function.

Typically, the EMA messages are only valid within the EMA callback methods, such as AppClient::onRefreshMsg. To use the EMA messages outside the EMA callback methods, the application needs to clone the messages.

For example:

RefreshMsg clonedRefreshMsg 
...   
 public void onRefreshMsg(RefreshMsg refreshMsg, OmmConsumerEvent event)
    {
        clonedRefreshMsg =  EmaFactory.createRefreshMsg(refreshMsg);
        System.out.println(clonedRefreshMsg);   
    }