I have this table with 17 millions records. I added some indexes and 90% of time it runs very fast.
But sometimes most queries with this table stop returning any data.
The others queries return normally.
I imagined it was a lock problem, so I added this in all my application:
SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED ;
MY QUERY HERE
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ ;
It didn't solved the problem.
Any ideas?
But sometimes most queries with this table stop returning any data.
The others queries return normally.
I imagined it was a lock problem, so I added this in all my application:
SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED ;
MY QUERY HERE
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ ;
It didn't solved the problem.
Any ideas?
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