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tao.su avatar image
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Why ChainRecord has error?

Client is using EMA to connect RTO and met the below error.


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Error received for <0#USTSY=RRPS>: ELEKTRON_DD/0#USTSY=RRPS is not a ChainRecord.

{"elements":{},"name":"0#USTSY=RRPS"}

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Please advise what the reason is and how to fix it.

Thanks a lot.

ema-api#technologychain-ric
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zoya faberov avatar image zoya faberov

Hello @tao.su ,

It would be helpful to include the details of how you observe this error with EMA and RTO:

  • version and language of EMA API
  • do you observe this error with a simple RTO example ( EMA 450 or 113) or only with the custom app?
  • was the error received once, or is it reproducible?

I have quick-verified 0#USTSY=RRPS instrument with example consumer EMA JAVA 113, and was able to subscribe as expected.

1 Answer

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wasin.w avatar image
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Hello @tao.su

I did a quick test with 0#USTSY=RRP and the EMA Java version 3.6.7 L2 - ex450_MP_QueryServiceDiscovery example. It can subscribe to the chain successfully as follows:

RefreshMsg
    streamId="5"
    domain="MarketPrice Domain"
    solicited
    RefreshComplete
    state="Open / Ok / None / ''"
    itemGroup="00 03"
    permissionData="03 01 01 68 97 c0"
    name="0#USTSY=RRPS"
    nameType="1"
    serviceId="257"
    serviceName="ELEKTRON_DD"
    Payload dataType="FieldList"
        FieldList FieldListNum="85" DictionaryId="1"
            FieldEntry fid="1" name="PROD_PERM" dataType="UInt" value="6897"
            FieldEntry fid="2" name="RDNDISPLAY" dataType="UInt" value="183"
            FieldEntry fid="3" name="DSPLY_NAME" dataType="Rmtes" value="RRPS-UST-All"
            FieldEntry fid="4" name="RDN_EXCHID" dataType="Enum" value="214"
          ...
            FieldEntry fid="239" name="REF_COUNT" dataType="UInt" value="14"
            FieldEntry fid="259" name="RECORDTYPE" dataType="UInt" value="40"
            FieldEntry fid="800" name="LONGLINK1" dataType="Ascii" value="912796YZ6=RRPS"
            FieldEntry fid="801" name="LONGLINK2" dataType="Ascii" value="912796X87=RRPS"
            FieldEntry fid="802" name="LONGLINK3" dataType="Ascii" value="USOOO1MT=RRPS"
...

To let us verify the issue further, please give us the following information.

  • version and language of EMA API that encounters the issue
  • Can you replicate the issue on demand?
  • Can you replicate the issue with EMA Example 450 or 113?
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