Azure Eventhub Sequence Number sequencing

Question

I know the below is true for sequence number within a partition :-

Sequence Number follows a predictable pattern where numbering is contiguous and unique within the scope of a partition. So if message x has sequence number 500 , message y will have sequence number 501.

Say last sequence number when message was received was 5000, and then no more messages were received and after 7 days retention policy , on 10th day we receive a message on the same partition , will the sequence number start from 5001 or will it be different this time?

The reason i am asking because I am seeing: "The expected sequence number xxx is less than the received sequence number yyy."?

For example:- The supplied sequence number '33508' is invalid. The last sequence number in the system is '583'

Answer 1

Hello @Sahu, Deepika ,
Thanks for the ask and using the Microsoft Q&A platform .

Sequence number should be contiguous even the data gets deleted due to retention policy setting.

Please do let me know how it goes .
Thanks
Himanshu
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