Spotlight on Oracle
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技术简报
阅读本篇关于预测诊断的技术简报,了解如何通过收集和分析性能指标来预测您Oracle数据库的未来性能。
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Spotlight on Oracle

快速定位并修复性能瓶颈的最佳方法

Spotlight® on Oracle提供可视化的实时诊断,可让您快速解决Oracle和Oracle RAC环境中的瓶颈问题。 而且,由于Spotlight能帮助您节省查找和解决性能问题的时间,因此您可以减少停机时间和IT成本。 使用Spotlight on Oracle,您可以向上司展示您取得的改进成果和相应的投资回报(ROI)。

借助于Spotlight,您可以:

  • 快速精确查找和解决瓶颈问题
  • 防止或尽量减少计划外停机时间
  • 提高对用户和利益相关方的服务水平
  • 增进对Oracle性能的了解
  • 掌握数据库流程——包括RAC(节点、群集、互连)
  • 实时诊断——查看可说明数据在各组件之间传送速度的图解流程。 如果有任何组件开始超过性能阈值,您会收到对于潜在瓶颈的音频或图像提示。 此外,重现以往实例的能力也得到了扩展。
  • 增强的Top SQL分析功能——获得SQL语句的综合视图,找出那些消耗资源最多的数据。
  • 分析跟踪文件——获得Oracle跟踪文件内容的图解视图,了解Oracle如何处理SQL语句,以及资源怎样被用来执行这些语句。
  • 故障排查实例——从内置的校准程序中使用一个正常活动的基准。 设置阈值,然后从图像或音频提示中获得关于即将发生故障的警告。
  • 报错日志读出器——读取Oracle数据库中出现的信息和错误时序表,从而快速识别需要修复的区域。
  • Unix、Linux和Windows操作系统的诊断——查看Unix、Linux和Windows操作系统中数据流的实时图形显示,获得该服务器操作系统的诊断结果。
  • 预测诊断——预测单个SQL语句的未来性能, 这包括在当前趋势继续发展的情况下,可导致数据库性能下降的冲突增加,以及通过性能建模对最佳系统资源需求进行预测。
  • RAC基础架构的诊断——查看从所有群集实例中汇总的性能数据。 查看群集级警报的综合视图。
  • 数据卫士诊断——监测数据卫士的性能,包括数据延迟以及所有数据流量和过程。

Before installing Spotlight on Oracle, ensure your system meets the following minimum hardware and software requirements:

Client Requirements

Platform

A Pentium-based or equivalent PC with:

  • A 1.2 GHz Processor (recommended minimum). The required processing power will increase when Spotlight diagnoses Oracle RAC clusters with many instances.
  • A monitor capable of supporting a resolution of 1280x1024 or larger. (You should also set the display to use the 64K color palette [65536 colors].)
  • A CD-ROM drive or Internet connection. Spotlight can be downloaded from the Internet or installed from compact disc. The CD-ROM drive should be attached to the PC on which Spotlight is to be installed. A drive mapped to a network device could be used if a local CD-ROM is not available.
  • A printer (optional). Spotlight reports can be printed on a laser or bubble jet printer. You can print graphs in color if your printer provides this capability.
  • A sound card and speakers (optional). Spotlight can use sound to alert you when a threshold is reached. You must have a sound card and speakers installed on your PC for this feature to work.
Memory512 megabytes of RAM (minimum). 1 gigabyte recommended. Memory consumption will increase for multiple simultaneous connections and as the number of instances in an Oracle RAC cluster increases, and will also depend on the connection options chosen.
Hard Disk Space1 gigabyte of free disk space. This should exist on a local disk drive rather than a network drive. Extra disk space will be required if you choose to log historical snapshots from within Spotlight.
Operating SystemMicrosoft Windows Server 2008 64-bit
Microsoft Windows Server 2003 32-bit and 64-bit
Microsoft Windows 7 32-bit and 64-bit
Microsoft Windows Vista Business 32-bit and 64-bit (Service Pack 1 or later)
Microsoft Windows XP Professional 32-bit and 64-bit (Service Pack 1 or later)
Note: Spotlight will run on 64-bit versions of the client operating system with the use of a 32-bit Oracle client.
Additional Software
  • .NET 3.5 service pack 1.
  • SQL*Net 2.3.4 or later. SQL*Net enables a connection to be established to a database. The database may be local or remote. Before you start Spotlight you must have the SQL*Net connection string for the database.
  • Oracle Client. (Oracle 9.2, Oracle 10g [full client or instant client], or Oracle 11g). Spotlight also requires that the version of the Oracle client be the same or later than the version of any Oracle database being diagnosed. For example, to connect to an Oracle 10g cluster, you must use an Oracle 10g client or later.

Server Requirements

Database Server (Oracle)The following Oracle database servers are supported for database queries. (You must have the Database Administrator [DBA] user ID and password for the database you want to diagnose.)
  • Oracle 9.2.0.4 or later
  • Oracle 10g (Release 1 or Release 2)
  • Oracle 11g (Release 1 or Release 2)

Note: The Spotlight User Wizard installs several read-only views into the SYS schema of the target database when you use the wizard to create or modify a Spotlight user. Because of this, the DBA account that you use within the Spotlight User Wizard should have SYSDBA privileges. If the account does not have these privileges, you will be asked to provide a valid SYS account and password.

Database Server (MySQL)The following MySQL database servers are supported for database queries. (You must have the Database Administrator [DBA] user ID and password for the database you want to diagnose.)
  • Version 5.0.3 and later.
Cloud Database ServicesOracle databases running on Amazon EC2.
Operating System ServerThe following server operating systems are supported for Operating System Server queries:

Unix:

  • Sun Solaris 9, 10, 11.
  • HP-UX 11i, 11i v2, 11i v3.
  • IBM AIX 5.2, 5.3, 6.1.
  • Red Hat and SUSE operating systems running Linux 2.4 and 2.6 kernels.

Microsoft Windows:

  • Microsoft Windows Server 2008 64-bit
  • Microsoft Windows Server 2003 32-bit and 64-bit
  • Microsoft Windows XP Professional 32-bit and 64-bit (Service Pack 1 or later)
  • Microsoft Windows Vista Business 32-bit and 64-bit (Service Pack 1 or later)
  • Microsoft Windows 7 32-bit and 64-bit
Oracle RAC ServersSpotlight on Oracle RAC supports up to 16 instances in a cluster, with a theoretical limit of 36 instances.

Virtualization Support

Review the following information about using Spotlight on Oracle in virtual environments:

ApplicationSpotlight has been tested for Citrix support on Windows Server 2003 Enterprise Server (Service Pack 2) using the MetaFrame Presentation Server 5.0 and Citrix Presentation Server Clients 10.2.
Desktop (VDI)Spotlight has been tested on VMware ESX servers and desktop VMware workstations.
ServerSpotlight has been tested on VMware ESX servers.

Note: Spotlight on Oracle may work in virtualization environments other than the ones in which it was tested