SET DEFAULT_STORAGE_ENGINE = 'tokudb'; set GLOBAL tokudb_checkpoint_on_flush_logs=ON; # Establish connection conn1 (user = root) # should see nothing select DB, command, state, info from information_schema.processlist where id!= connection_id(); DB command state info test Sleep NULL test Sleep NULL flush logs; # should see nothing select DB, command, state, info from information_schema.processlist where id!= connection_id(); DB command state info test Sleep NULL test Sleep NULL set session tokudb_checkpoint_lock=1; flush logs;; # should see a flush logs select DB, command, state, info from information_schema.processlist where id!= connection_id(); DB command state info test Sleep NULL test Query init flush logs set session tokudb_checkpoint_lock=1; # should still see a flush logs select DB, command, state, info from information_schema.processlist where id!= connection_id(); DB command state info test Sleep NULL test Query init flush logs set session tokudb_checkpoint_lock=0; # should still see a flush logs select DB, command, state, info from information_schema.processlist where id!= connection_id(); DB command state info test Sleep NULL test Query init flush logs set session tokudb_checkpoint_lock=0; # should see nothing select DB, command, state, info from information_schema.processlist where id!= connection_id(); DB command state info test Sleep NULL test Sleep NULL set GLOBAL tokudb_checkpoint_on_flush_logs=OFF;