Contributions via TRCC (Contributions Channel) are failing with error "Too many messages in flight"

paul.cockerham

2026-02-25 22:49:55.694 WARN 1 --- [ Dispatch Queue] c.b.e.reuters.publisher.ReutersSession : Received negative acknowledgment for contribution id: 290228546, reason: UNSPECIFIED, NO_CHANGE, NACK_DENIED_BY_SRC, "Too many messages in flight"

This happens EOD at ~22:49 every night. Otherwise intraday contributions are onpassed with no issues.

Does anyone know what this message indicates? Bandwidth throttling?

wasin.w V3

Hello @paul.cockerham

Thank you for reaching out. The NAK response with "Too many messages in flight" indicates an application sends to many update messages to the RCC server.

Did an application send more update than usual on EOD? How many updates an application have sent all day?

When you sent a OMM Login request message to RCC, you should get a Refresh Login response message with the TRCE:MaxMessagesPerSecond element. The value of this element represents the maximum number of message rate that can be posted by an application. An application must not post messages exceed this number.

Example:

<attrib>

	<elementList flags="0x8 (RSSL_ELF_HAS_STANDARD_DATA)">

		<elementEntry name="TRCE:MaxMessagesPerSecond" dataType="RSSL_DT_UINT" data="XXXX"/>

	</elementList>

</attrib>