gaojun2048 opened a new issue, #9721: URL: https://github.com/apache/dolphinscheduler/issues/9721
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/dolphinscheduler/issues?q=is%3Aissue) and found no similar issues. ### What happened Today I test dev branch and I found this error: ``` [ERROR] 2022-04-24 20:38:05.791 org.apache.dolphinscheduler.server.master.runner.WorkflowExecuteThread:[798] - start process error, process instance id:4 org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2 at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:78) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:440) at com.sun.proxy.$Proxy128.selectOne(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159) at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.execute(MybatisMapperMethod.java:89) at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:61) at com.sun.proxy.$Proxy168.queryByDefinitionCodeAndVersion(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.cache.interceptor.CacheInterceptor.lambda$invoke$0(CacheInterceptor.java:54) at org.springframework.cache.interceptor.CacheAspectSupport.invokeOperation(CacheAspectSupport.java:366) at org.springframework.cache.interceptor.CacheAspectSupport.lambda$handleSynchronizedGet$1(CacheAspectSupport.java:447) at org.springframework.cache.support.NoOpCache.get(NoOpCache.java:76) at org.springframework.cache.interceptor.CacheAspectSupport.handleSynchronizedGet(CacheAspectSupport.java:442) at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:382) at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:345) at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:64) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215) at com.sun.proxy.$Proxy169.queryByDefinitionCodeAndVersion(Unknown Source) at org.apache.dolphinscheduler.service.process.ProcessServiceImpl.findTaskDefinition(ProcessServiceImpl.java:2675) at org.apache.dolphinscheduler.service.process.ProcessServiceImpl.lambda$getTaskDefineLogListByRelation$7(ProcessServiceImpl.java:2665) at java.util.HashMap.forEach(HashMap.java:1289) at org.apache.dolphinscheduler.service.process.ProcessServiceImpl.getTaskDefineLogListByRelation(ProcessServiceImpl.java:2664) at org.apache.dolphinscheduler.service.process.ProcessServiceImpl$$FastClassBySpringCGLIB$$9d3e18f9.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689) at org.whaleops.service.process.WhaleProcessService$$EnhancerBySpringCGLIB$$da47981a.getTaskDefineLogListByRelation(<generated>) at org.apache.dolphinscheduler.server.master.runner.WorkflowExecuteThread.buildFlowDag(WorkflowExecuteThread.java:861) at org.apache.dolphinscheduler.server.master.runner.WorkflowExecuteThread.startProcess(WorkflowExecuteThread.java:793) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) at java.util.concurrent.FutureTask.run(FutureTask.java) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2 at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:80) at sun.reflect.GeneratedMethodAccessor177.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:426) ... 41 common frames omitted ``` I found table `t_ds_task_definition_log` and `t_ds_process_definition_log` have two same row: <img width="1015" alt="image" src="https://user-images.githubusercontent.com/32193458/164977727-d6e2c98e-b64d-458b-ae4e-f2e1f84013ab.png";> ### What you expected to happen Table t_ds_task_definition_log and t_ds_process_definition_log should add unique index ### How to reproduce Only when the network is unstable. ### Anything else _No response_ ### Version 3.0.0-alpha ### Are you willing to submit PR? - [X] Yes I am willing to submit a PR! ### 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