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Select for update should return on read-only database (1 reply)

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I am using mysql-connector-java version 5.1.25. I have a scenario in which my application is expected to run against a read-only MySQL DB. And so tt is also expected that any write against this DB will result in a SQL Exception and all reads will succeed.

Given the above, all my reads succeed and writes fail except for one case where I do a locking read. I do a SELECT ... FOR UPDATE (Hibernate is the framework that I use, so changing it to something else for a pessimistic write may not be an option).
This call actually hangs infinitely. I would expect it to throw a SQLException similar to the other writes. Am I missing any setting ? I would really like for this to return a SQLException to me similar to the other reads,

(From my MySQLWorkbench atleast am getting an Error Code : 1223)

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