2.3、读事务(Read Transactions) 我们先来看看SELECT语句执行时锁的状态变化过程,非常简单:一个连接执行select语句,触发一个事务,从UNLOCKED到SHARED,当事...
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As they respond to the write transactions they become eligible for further read transactions (selects).
当对写事务作出响应时,它们才有资格接收之后的读事务(选择)。
Because driver maintains connection to both nodes while write transactions are directed to the primary node, read transactions can be directed to either node.
由于驱动程序维护与两个节点的连接,同时写事务被定向到主节点,因此读事务可以定向到任何一个节点。
Read transactions require a consistent view of the data -- meaning if two read transactions are submitted at the same time, they should produce uniform result sets if they select the same data ranges.
读事务需要数据的一致视图 —— 即当同时提交两个读事务时,如果它们选择相同的数据范围,那么应该产生一致的结果集。
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