TCP/IP is usually a four-layer protocol. For reducing system expense by the data copy, the system operate through indicator,data is upwardly transmisated along the ptotocol stack in the buffer.
采取TCP/IP协议四层之间通过函数进行数据传递;通过指针操作,将缓冲区中的数据沿协议栈向上传递,减少了数据拷贝的系统开销。
参考来源 - 嵌入式TCP/IP协议的研究与ARM实现To meet the requirement of the consistency of data copy, a two-phase synchronization protocol is proposed. And this process of synchronization is melt into the process of the metadata requests to guarantee the real-time online synchronization.
在元数据副本一致性方面,设计了一个两段同步协议,能够保证各镜像节点实时地在线同步。
参考来源 - 基于LDAP的元数据服务器集群的研究与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
This data copy is done via RSH.
这种数据复制通过rsh完成。
Essentially this is a data copy which in middleware is very expensive and should be avoided.
本质上这意味着数据拷贝，这在中间件是十分昂贵的操作应当予以避免。
Bulk data copy — a new DB2BulkCopyOperation class provides the ability to bulk copy data in DB2 tables.
批量数据复制——新的DB 2 bulkcopyoperation类提供了批量复制db2表中的数据的能力。
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