About "NODATA" in emaj

Raj.Huang
Raj.Huang
in EMA

Hi @Umer Nalla,

My team met a connection problem last week, I checked the log and found that at about 14:42, my AppClient couldn't receive or didn't decode message since this log received, though it still comes "FILED LIST"(normal data): 

<STATUS domainType="MARKET_PRICE" streamId="5" containerType="NO_DATA" flags="0x08 (HAS_MSG_KEY)" dataSize="0">
<key flags="0x07 (HAS_SERVICE_ID|HAS_NAME|HAS_NAME_TYPE)" serviceId="257" name="GBP=" nameType="1"/>
<dataBody>
</dataBody>
</STATUS>

and at about 15:44, the server discoverd the connection may go wrong, so it reconnected.

So do you know why the server sends the message above or in which case it sends, because the reconnection time is too long reaching 1 hour.logdetail-question.zip

I have attched the detail log and describtion, can you help me?

By the way, can I use Provider class to create “NO_DATA” message like this to debug my application?

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Best Answer

  • umer.nalla
    umer.nalla
    Answer ✓

    Hi @Raj.Huang

    To perform a thorough investigation of a in intermittent connection issue, I recommend you contact our developer support service who can assist you offline. This forum is better suited to general Q&A type scenarios.

    Also, I notice you addressed the question directly to me - unfortunately I am on client site for a few weeks and therefore would not be able to get involved in any involved investigation process.

    With regards the 'NO_DATA' you should be able to modify on of the IProvider examples that come with the API to publish an empty payload. However, it is unlikely that merely publishing an empty payload will help simulate whatever connection scenario you encountered. Just based on a quick look at the log file, I can see your app did receive a further update message with several fields - immediately after the NO_DATA update.

    As mentioned above, I recommend you open a support ticket and work with our developer support team to investigate your issue in detail.

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