Getting Startedwith pureQuery

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156 Getting Started with pureQuery Figure 8.1 - In a multi-tiered environment there is less information at the database server than the DBA needs to quickly identify problem sources. In a typical environment shown in Figure 8.1, the database administrator sees SQL activity that is identified by a generic dynamic driver package (labeled “A” in this picture), used by the database driver executing application SQL. The identity of the application issuing the SQL is obscured by the generic driver package and several layers of the architecture. User id’s may not be visible at the database either, if they are masked by the connection pool. It’s also possible the application developer didn’t configure client property settings that would help the DBA identify different parts of the client application and workload. Administrators solving performance problems observed at the application layer, who are using traditional database monitoring tools, can easily look at database performance and statistics to identify and solve problems in the database itself. Likewise, traditional application monitoring tools identify issues with the business logic or application server management layer. However, sometimes the problem is not found in either of these layers. Administrators historically lack needed information about network, driver, and persistence layer activity to quickly pinpoint the actual source of the problem. Figure 8.2 shows the gap in useful monitoring information:
Chapter 8 – Extended Insight 157 Figure 8.2 - Monitoring information is scarce from the middle tiers. pureQuery client monitoring solves this problem by increasing application visibility at the monitor for SQL executing in a multi-tiered environment, and providing useful monitoring statistics from portions of the stack that are usually obscured by persistence frameworks. 8.3 Monitoring pureQuery Clients 8.3.1 More Monitored Layers Extended Insight provides new monitoring information from the perspective of the application client, and integrates it with traditional database-centric and application-centric monitoring data, as shown in Figure 8.3:
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G E T T I N G S T A R T E D W I T H
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Notices This information was develo
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Trademarks IBM, the IBM logo, DB2,
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1 Chapter 1 - Introduction to pureQ
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Chapter 1 - Introduction to pureQue
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2 Chapter 2 - Installing pureQuery
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Chapter 2 - Installing pureQuery (O
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PART II - TOOLING
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Page 105 and 106: PART III - SECURITY, PERFORMANCE, A
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12 Chapter 12 - Stored Procedures T
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13 Chapter 13 - Handlers In this ch
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Chapter 13 - Handlers 263 Figure 13
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Chapter 13 - Handlers 265 SELECT *
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Chapter 13 - Handlers 267 construct
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13.4.1 Writing a ResultHandler impl
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A. In a getData method in the com.i
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15 Chapter 15 - pureQuery and pureX
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Chapter 15 - pureQuery and pureXML
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A Appendix A - Solutions to the rev
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Appendix A - Solutions to the revie
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B Appendix B - Understanding the Sa
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B.1.3 The “Employee Information
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Appendix C - Up and Running with DB
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B.1.6 The “Company Employees” s
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C.4.1 IBM Optim Development Studio
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E Appendix E - Options Files This a
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Appendix E - Options files 357 comm
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Appendix E - Options files 359 In b
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Resources Web sites 1. pureQuery pl
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Getting Startedwith pureQuery

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