跳转到主内容

数据库应用程序报告性能缓慢和IO超时

Views:
111
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
perf
Last Updated:

适用场景

  • ONTAP
  • NFS
  • Oracle DB

问题描述

  • Oracle警报日志指示日志写入器(LGWR)进程由于磁盘I/O操作而出现明显延迟。
  • 应用程序报告以下错误:
LGWR : Waits for event 'Disk File Operations I/O' for 66 secs
   .... 76 secs
  ---- 126 sec
 LGWR waits on event 'enq: CF - contention' for 90 secs
 
  • 不会发现存储层性能争用、延迟以亚毫秒为单位。

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.