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Projects:Backgroud Process Cluster Support/PerformanceQA

Introduction

The main performance impact of this project is that now the JobStore store data in the database, as opposed to using the original configuration where the data is stored in memory. As a result of this, now quartz will need to run queries that were not done with the previous single-instance configuration.

Quartz Query Analysis

In this document we have compiled the queries done when performing several scheduler-related operations:

The impact seems to be quite small. In the most intensive test, where there are two cluster instances that among them execute one backgroud process every 10 second during 5 minutes, the total amount of time spent in the database running quartz queries is less than 60 milliseconds.

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