问题
I am working on Spring Cloud Data Flow and Spring Batch by taking a reference from https://github.com/spring-cloud/spring-cloud-task/tree/master/spring-cloud-task-samples.
I'm executing the batch-job and when executed this example two times, on 2nd time I observed the error, however for the first time it worked fine.
I started the spring-cloud-dataflow-server-local server using below commands and it created all metadata for me- highlighted in yellow.
Error:
exitCode=null, taskName='batch-job', startTime=Fri Apr 17 18:21:36 IST 2020, endTime=null, exitMessage='null', externalExecutionId='null', errorMessage='null', arguments=[--spring.cloud.task.executionid=3]}
2020-04-17 18:21:36.312 INFO 4988 --- [ main] com.example.BatchJobApplication : Started BatchJobApplication in 3.661 seconds (JVM running for 4.407)
2020-04-17 18:21:36.312 INFO 4988 --- [ main] o.s.b.a.b.JobLauncherCommandLineRunner : Running default command line with: [--spring.cloud.task.executionid=3]
2020-04-17 18:21:36.396 DEBUG 4988 --- [ main] o.s.c.t.r.support.SimpleTaskRepository : Updating: TaskExecution with executionId=3 with the following {exitCode=1, endTime=Fri Apr 17 18:21:36 IST 2020, exitMessage='null', errorMessage='java.lang.IllegalStateException: Failed to execute CommandLineRunner
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:787)
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:768)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:322)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)
at com.example.BatchJobApplication.main(BatchJobApplication.java:14)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:51)
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:52)
Caused by: org.springframework.batch.core.repository.JobInstanceAlreadyCompleteException: A job instance already exists and is complete for parameters={-spring.cloud.task.executionid=3}. If you want to run this job again, change the parameters.
at org.springframework.batch.core.repository.support.SimpleJobRepository.createJobExecution(SimpleJobRepository.java:131)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:366)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.batch.core.repository.support.AbstractJobRepositoryFactoryBe'}
2020-04-17 18:21:36.404 INFO 4988 --- [ main] ConditionEvaluationReportLoggingListener :
java -jar spring-cloud-dataflow-server-local-1.7.4.RELEASE.jar
On the second time Task Execution, I get the below error.
java.lang.IllegalStateException: Failed to execute CommandLineRunner
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:787) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:768) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:322) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at com.example.BatchJobApplication.main(BatchJobApplication.java:14) [classes!/:0.0.1-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_151]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_151]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [batch-job-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [batch-job-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:51) [batch-job-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:52) [batch-job-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
Caused by: org.springframework.batch.core.repository.JobInstanceAlreadyCompleteException: A job instance already exists and is complete for parameters={-spring.cloud.task.executionid=2}. If you want to run this job again, change the parameters.
at org.springframework.batch.core.repository.support.SimpleJobRepository.createJobExecution(SimpleJobRepository.java:131) ~[spring-batch-core-4.2.1.RELEASE.jar!/:4.2.1.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_151]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_151]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:366) ~[spring-tx-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118) ~[spring-tx-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.batch.core.repository.support.AbstractJobRepositoryFactoryBean$1.invoke(AbstractJobRepositoryFactoryBean.java:181) ~[spring-batch-core-4.2.1.RELEASE.jar!/:4.2.1.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at com.sun.proxy.$Proxy45.createJobExecution(Unknown Source) ~[na:na]
at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:137) ~[spring-batch-core-4.2.1.RELEASE.jar!/:4.2.1.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_151]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_151]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:127) ~[spring-batch-core-4.2.1.RELEASE.jar!/:4.2.1.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.2.5.RELEASE.jar!/:5.2.5.RELEASE]
at com.sun.proxy.$Proxy51.run(Unknown Source) ~[na:na]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.execute(JobLauncherCommandLineRunner.java:192) ~[spring-boot-autoconfigure-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.executeLocalJobs(JobLauncherCommandLineRunner.java:166) ~[spring-boot-autoconfigure-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.launchJobFromProperties(JobLauncherCommandLineRunner.java:153) ~[spring-boot-autoconfigure-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.run(JobLauncherCommandLineRunner.java:148) ~[spring-boot-autoconfigure-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:784) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE]
... 13 common frames omitted
2020-04-17 17:35:47.076 INFO 10780 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2020-04-17 17:35:47.091 INFO 10780 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
BatchJobApplication.java
@EnableTask
@SpringBootApplication
@EnableBatchProcessing
public class BatchJobApplication implements CommandLineRunner{
@Autowired
private JobLauncher jobLauncher;
@Autowired
private Job job;
public static void main(String[] args) {
SpringApplication.run(BatchJobApplication.class, args);
}
@Override
public void run(String... args) throws Exception {
JobParameters jobParameters = new JobParametersBuilder()
.addDate("date", new Date())
.addLong("JobId",System.currentTimeMillis())
.addLong("time",System.currentTimeMillis()).toJobParameters();
JobExecution execution = jobLauncher.run(job, jobParameters);
System.out.println("STATUS :: "+execution.getStatus());
}
}
回答1:
To resolved this issue, I passed the unique key:value in the Task Argument and I so keeping passing the multiple key:value combinations, then I can run the same Task many times.
However I wanted to do this programmatically. Any quick solution ?
@Configuration
public class JobConfiguration {
private static final Log logger = LogFactory.getLog(JobConfiguration.class);
@Autowired
public JobBuilderFactory jobBuilderFactory;
@Autowired
public StepBuilderFactory stepBuilderFactory;
@Bean
public Job job1() {
return this.jobBuilderFactory.get("job1").start(this.stepBuilderFactory.get("job1step1").tasklet(new Tasklet() {
@Override
public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
logger.info("Job1 was run");
return RepeatStatus.FINISHED;
}
}).build()).build();
}
@Bean
public Job job2() {
return this.jobBuilderFactory.get("job2").start(this.stepBuilderFactory.get("job2step1").tasklet(new Tasklet() {
@Override
public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
logger.info("Job2 was run");
return RepeatStatus.FINISHED;
}
}).build()).build();
}
}
Great Help from @GlennRenfro - Use .incrementer(new RunIdIncrementer()). in each job, now you can execute the same job multiple times.
来源：https://stackoverflow.com/questions/61271924/a-job-instance-already-exists-and-is-complete-for-parameters-spring-cloud-task