Identity seed at the subscriber changes automatically (SQL Server 2008 R2 SP2 CU9).

Question

Hi all,
I have and updateable transactional subscription. The identity seed at subscriber for a table changed (I don't know how) and caused next inserts generate duplicate PKs. I manually reseeded (using DBCC CHECKIDENT) its identity column to upper value to prevent
duplicates. But after 5 seconds it is automatically reseeded to lower value. I repeated reseed command but again after sync with publisher it changed to lower value. How can I solve this problem?
Any help would be greatly appreciated.
Leila

Answer 1

It is possible in this case that you are not syncing frequently enough, or that you are doing more than 2000 inserts on the subscriber between sync's. In this case you will need to change your subscriber identity range.
Right click on your publication, select properties, then in the articles tab, locate your table, click on article properties, and select set properties of highlighted table article, in the identity range management section , set subscriber range size to
some value like 2000 or 10000. 2000 will allow up to 4000 subscriber side inserts between syncs, and 10000 will allow 20,000 inserts on the subscriber.
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