The developers are the only ones that can tell you if your application supports RCSI. When you want to save the changes you made to the database (Create, Update, Delete), EntityFramework is smart enough to create a transaction without your notice behind the scenes to wrap the changes. Yes, when failover occurs the secondary changes back to read committed if that's how the DB is configured on the primary. # SQLAlchemy hangs indefinitely here while waiting for data to be returned from this call. The default isolation mode is read committed and fits perfectly to 99 of your needs, eg. Please login to SQL Management studio and execute the below queries. 08:13:03 ._execute_context(base.py:1235) INFO: SELECT. If any other application (maybe reporting tools) connects to servicedesk database, you need to stop them too. displaying 10 of 291 total bound parameter sets. 08:13:02 ._begin_impl(base.py:730) INFO: BEGIN (implicit) ALTER DATABASE YourDatabase SET READCOMMITTEDSNAPSHOT ON WITH ROLLBACK IMMEDIATE If You Know You Know The reasons why you might want to turn these on are when your application performance suffers because of locking or deadlocking. 08:13:02 ._init_metadata(result.py:810) DEBUG: Col ('TABLE_SCHEMA', 'TABLE_NAME', 'COLUMN_NAME', 'IS_NULLABLE', 'DATA_TYPE', 'ORDINAL_POSITION', 'CHARACTER_MAXIMUM_LENGTH', 'NUMERIC_PRECISION', 'NUMERIC_SCALE', 'COLUMN_DEFAULT', 'COLLATION_NAME') 08:13:02 ._execute_context(base.py:1235) INFO: SELECT. That is because it had been set to the default Isolation Level which is Read Committed which in turn disallowed reading uncommitted data.
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