Db2在实践中遇到的package相关性能问题.md

DB2 几个性能问题的处理 1 徐福飞 Db2 技术支持工程师 案例 1 – SYS CPU 高 2 • 工具及命令： vmstat  r The number of runnable processes running or waiting for run time  b Number of processes blocked waiting for IO to complete  swpd the amount of swap memory used in KB If

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一． 历史 session 信息 监视项ApplicationsConnections 查看正在和历史 connection 信息 监视项Statement，查看正在和历史 sql 信息 可以定制时间段 二． 表数据量最近变化情况 同一张表不同时间的逻辑大小物理大小变化 数据量变化曲线图

DMC – Blackouts 中断 Table of Contents DMC – Blackouts 中断1 一． 功能介绍1 二． 应用场景

IBM Db2 Data Management Console Overview deck — Customer Success Manager Group 目录 CONTENTS 1 功能概览3 4 CSM 团队介绍 案例 2 产品介绍

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© 2011 IBM CorporationMay 14 2022 DB2 Cluster Services © 2011 IBM Corporation2 Agenda  What is DB2 cluster services – Technical overview  RSCT – Heart beating – Quorum – tiebreaker  Tivoli SA MP – Resources and dependencies  DB2 cluster services st

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Db2 111 pureScale and Availability Enhancements 王毅磊 DB2 LUW support

Click to add text IBM Software Group DB2 Support Education ® 1 DB2 Diagnosing corruption IBM Software Group DB2 Information Management Software DB2 Support 2 Agenda  Different sources of Corruption  Types of Corruption 1 Data page corruption

Click to add text IBM Software Group DB2 Support Education ® 1 Understanding A Hang Issue IBM Software Group DB2 Information Management Software DB2 Support 2 Introduction  The difficultly with hang problems is that its critical to generate di

Click to add text IBM Software Group DB2 Support Education ® 1 DB2 Instance Crash IBM Software Group DB2 Information Management Software DB2 Support 2 Terminology

IBM Data and AI © 2022 IBM Corporation Db2Diaglog 史文静 Db2 技术支持工程师 Db2diaglog Copyright © 2022 IBM 2 Dumps the data required to analyze the problem based on  What the error is  Where the error is being encountered  The other information for the

IBM Data and AI © 2021 IBM Corporation Db2 and IO 徐福飞 Db2 技术支持工程师 IO 基本原理 Copyright © 2021 IBM 2  用户进程调用 open 打开文件  如果需要，使用 fcntl 锁住文件  用户进程发出 IO 请求： readwrite logger preadv – prefetchers iosubmit – pagecleaners  如果在文件系统缓存找到内容

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What is Runstats? Runstats is a utility in Db2 that is used to collect statistics about the data in Db2 tables and indexes. This statistical information is critical to Db2 database performance. Runstats is executed on a table by table basis, so scripting

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