We have a problem in our Magento shop when we try to set the position of the products in a category from manage categories. When we try to save a product after changing the position in "category products" we get the following failure:
SQLSTATE[40001]: Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction
Does anyone know how to solve this?
The error occurs most probably because you have the product position index set to auto and Magento tries to rebuild the index along with the product save.
Go to System->Index Management and set the indexes related to catalog to 'manual'.
Then set the product positions and when you are done rebuild the indexes manually.
来源：https://stackoverflow.com/questions/21040460/sqlstate40001-serialization-failure-1213-deadlock-found-when-trying-to-get-l