事务管理和内存管理比起来没有多大的不同，而且我们看到由于生命周期问题，语言的总体趋势是不再让开发人员负责内存管理。
Transactions are not much different than memory and we see the general trend in languages to removing the responsibility of memory management from developers due to life cycle issues.
该方法采用磁盘日志和内存日志的结构，通过对事务的管理，能满足集群文件系统中元数据高可用性的要求。
This method used the structure of disk journal and memory journal, and adopted a mechanism of transaction, so it could meet the request of high availability in file system metadata.
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