公开(公告)号：US20150261673A1

公开(公告)日：2015-09-17

申请号：US14204916

申请日：2014-03-11

Applicant: Amazon Technologies, Inc.

Inventor： Danny Wei ,  Kerry Quintin Lee ,  Jiahua HE ,  Benjamin Arthur Hawks ,  John Luther Guthrie, II ,  James Michael Thompson

IPC: G06F12/08

CPC classification number: G06F12/0866 ,  G06F11/14 ,  G06F11/1471 ,  G06F11/3409 ,  G06F11/3485 ,  G06F12/0804 ,  G06F12/0868 ,  G06F2201/885 ,  G06F2212/1016 ,  G06F2212/1032 ,  G06F2212/313 ,  G06F2212/461 ,  G06F2212/502

Abstract: A block-based storage system may implement dynamic durability adjustment for page cache write logging. A rate of incoming write requests for data volumes maintained at a storage node may be monitored. Based, at least in part, on the rate of incoming write requests, a dynamic modification to a durability property for a data volume may be made, such as enabling page cache write logging the data volume or disabling write logging for the data volume. When incoming write requests are received, a determination may be made as to whether page cache write logging for a particular data volume is enabled. For write requests with disabled page cache write logging, the page cache may be updated and the write request may be acknowledged without storing a log record describing the update in a page cache write log.

Abstract translation: 基于块的存储系统可以实现页面缓存写入日志记录的动态耐久性调整。 可以监视在存储节点处维护的数据卷的传入写入请求的速率。 至少部分地基于传入写入请求的速率，可以对数据卷的耐久性属性进行动态修改，例如使页面缓存写入记录数据卷或禁用数据卷的写日志记录。 当接收到进入的写入请求时，可以确定是否启用特定数据卷的页面缓存写入日志记录。 对于具有禁用页面缓存写入日志记录的写入请求，可以更新页面缓存，并且可以确认写入请求，而不将描述更新的日志记录存储在页面缓存写入日志中。