How to avoid deadlock during Insert and Update Events

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SQL-Server-2008R2

Hello All,
We have created an API that is continuous hitting the database table and if anyone other user try to insert or update anything on that table then we are getting deadlock issue. So how we can avoid deadlock for inserting while the API also inserting data to that table

I am getting the following exception:
"Transaction (Process ID XXX) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction"

Thanks,
Amit

Posted 12-Nov-14 23:22pm

amit2620

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DaveAuld 13-Nov-14 5:38am

If the API is constantly hitting the DB for read ops then you need to introduce caching, the write op should hit the db and the cache updates accordingly.

amit2620 13-Nov-14 9:34am

API and users are performing write events not read events. so one process is causing deadlock to prevent writing by other process. Can you please let me know any way to insert into table which is already locked by other process.

Thanks

Tomas Takac 13-Nov-14 5:39am

Can you post the structure of the table?

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DaveAuld · Answer 1 · 2014-11-13T03:51:00

Solution 1

How about following the guidance notes in the Technet document;
Minimizing Deadlocks[^]

Posted 13-Nov-14 3:51am

DaveAuld