Ankur Mhatre
eaa8171966
Three replicas of one application against one PostgreSQL database, proving duplicate @Scheduled execution and then removing it with ShedLock: 24 executions where 8 were due, then 7 for 7 ticks. Also measured: @SchedulerLock without @EnableSchedulerLock does nothing and warns about nothing; spring.task.scheduling.pool.size=1 does not starve a fixedRate job but delays it and fires 35 of 40 executions in a burst; and a node whose clock is 40 seconds fast takes a live lock unless the provider uses usingDbTime().
69 lines
2.2 KiB
XML
69 lines
2.2 KiB
XML
<project xmlns="http://maven.apache.org/POM/4.0.0">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>4.1.1</version>
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<relativePath/>
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</parent>
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<groupId>com.ankurm</groupId>
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<artifactId>scheduling</artifactId>
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<version>1.0</version>
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<packaging>jar</packaging>
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<properties>
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<java.version>25</java.version>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<!-- ShedLock is NOT managed by spring-boot-dependencies, so this version is pinned here.
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7.9.0 was read from maven-metadata.xml on Maven Central; its jars are compiled for
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Java 17 (MANIFEST Java-Version: 17, class file major version 61). -->
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<shedlock.version>7.9.0</shedlock.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter</artifactId>
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</dependency>
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<!-- spring-boot-starter-jdbc, not a bare spring-jdbc dependency: in Boot 4 the DataSource
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and JdbcTemplate auto-configuration lives in the spring-boot-jdbc module, which the
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starter brings and spring-jdbc does not. -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-jdbc</artifactId>
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</dependency>
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<dependency>
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<groupId>org.postgresql</groupId>
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<artifactId>postgresql</artifactId>
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</dependency>
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<dependency>
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<groupId>net.javacrumbs.shedlock</groupId>
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<artifactId>shedlock-spring</artifactId>
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<version>${shedlock.version}</version>
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</dependency>
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<dependency>
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<groupId>net.javacrumbs.shedlock</groupId>
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<artifactId>shedlock-provider-jdbc-template</artifactId>
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<version>${shedlock.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>
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