The main problem with a pessimistic approach is that transactions have to wait for each other.
悲观锁定方法最主要的问题是，事务之间必须互相等候。
If the application access pattern is predominately update access, then pessimistic approach might be advantageous in that it avoids optimistic concurrency update failures.
如果应用程序访问模式主要是更新数据，那么乐观锁定方法能有利地避免乐观并发性更新的失败。
As described previously, the intent of the pessimistic approach is to ensure that the data loaded into the entity bean is locked during the entire duration of a transaction.
正如先前描述的一样，悲观方法的意图是确保装入实体bean的数据在整个事务处理持续时间内处于锁定状态。
The main problem with a pessimistic locking approach is that transactions have to wait for each other.
悲观锁定方法的主要问题是事务之间必须互相等待。
The pigs in the boring environment were pessimistic and, fearing it might be the bag, did not approach for a treat.
而在不好环境中的猪则更加悲观，以为这种声音可能是要来猎捕他们的声音，并不会把这当做一种乐趣。
In the face of setbacks and misfortune, pessimistic people see is the approach of death, an optimist see is born.
面对挫折与不幸，悲观的人看到的是死的迫近，乐观的人看到的是生的转机。
Our scheme being a configurable general rollback recovery approach, its two end points correspond to conventional pessimistic message logging and coordinated checkpointing, respectively.
分块消息日志方法是一种可配置的一般化方法，悲观消息日志方法和协同检查点方法是其两个特例。
Our scheme being a configurable general rollback recovery approach, its two end points correspond to conventional pessimistic message logging and coordinated checkpointing, respectively.
分块消息日志方法是一种可配置的一般化方法，悲观消息日志方法和协同检查点方法是其两个特例。
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