公开(公告)号：WO2015078370A1

公开(公告)日：2015-06-04

申请号：PCT/CN2014/092258

申请日：2014-11-26

Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED

Inventor： ZHUANG, Qianyu ,  BAO, Chunjian ,  MAI, Yihua ,  ZHAI, Yantang

IPC: G06F17/30

CPC classification number: G06F17/30117 ,  G06F11/14 ,  G06F11/1435 ,  G06F17/30138

Abstract: A method, a device, a node and a system for managing file in distributed data warehouse are provided. The method includes: acquiring, by a data node, a deleting instruction carrying a data block identifier, wherein the deleting instruction is sent by a management node; suspending, by the data node, the deleting instruction; and deleting, by the data node, a data block corresponding to the data block identifier after a condition is met, thereby resolving the technical issue that an accidentally deleted file can not be recovered by setting a trash in the management node in some cases and ensuring the data security of the Hadoop system.

Abstract translation: 提供了分布式数据仓库中管理文件的方法，设备，节点和系统。 该方法包括：由数据节点获取携带数据块标识符的删除指令，其中删除指令由管理节点发送; 由数据节点暂停删除指令; 并且在满足条件之后，由数据节点删除与数据块标识符相对应的数据块，从而解决在某些情况下通过设置管理节点中的垃圾而无法恢复意外删除的文件的技术问题，并确保 Hadoop系统的数据安全性。