项目启动报错：Caused by: com.atomikos.recovery.LogException: Log already in use? tmlog in ./

今天在同一个环境启动两个项目时报错，因为两个项目同时涉及到分布式事物和切换数据源相关。

一、启动项目时报错示例：

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-11-30 17:35:10.585 ERROR 7706 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'atomikosTransactionManager' defined in class path resource [com/haungtu/common/datasources/DynamicDataSourceConfig.class]:
 Invocation of init method failed; nested exception is com.atomikos.icatch.SysException: Error in init: Log already in use? tmlog in ./
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1708)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:581)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:327)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243)
	at com.huangtu.AdminApplication.main(AdminApplication.java:16)
	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.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:50)
	at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)
Caused by: com.atomikos.icatch.SysException: Error in init: Log already in use? tmlog in ./
	at com.atomikos.icatch.provider.imp.AssemblerImp.createRepository(AssemblerImp.java:181)
	at com.atomikos.icatch.provider.imp.AssemblerImp.assembleTransactionService(AssemblerImp.java:156)
	at com.atomikos.icatch.config.Configuration.assembleSystemComponents(Configuration.java:485)
	at com.atomikos.icatch.config.Configuration.init(Configuration.java:448)
	at com.atomikos.icatch.jta.UserTransactionManager.startupTransactionService(UserTransactionManager.java:71)
	at com.atomikos.icatch.jta.UserTransactionManager.initializeTransactionManagerSingleton(UserTransactionManager.java:60)
	at com.atomikos.icatch.jta.UserTransactionManager.checkSetup(UserTransactionManager.java:52)
	at com.atomikos.icatch.jta.UserTransactionManager.init(UserTransactionManager.java:122)
	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.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1833)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1776)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1704)
	... 24 common frames omitted
Caused by: com.atomikos.recovery.LogException: Log already in use? tmlog in ./
	at com.atomikos.persistence.imp.LogFileLock.acquireLock(LogFileLock.java:59)
	at com.atomikos.recovery.imp.FileSystemRepository.init(FileSystemRepository.java:55)
	at com.atomikos.icatch.provider.imp.AssemblerImp.createCoordinatorLogEntryRepository(AssemblerImp.java:229)
	at com.atomikos.icatch.provider.imp.AssemblerImp.createRepository(AssemblerImp.java:179)
	... 38 common frames omitted

二、原因： 使用分布式事物管理时启动报错，由于在项目中使用atomikos时，如果在同一个环境中部署两个以上这种项目，则可能会报出com.atomikos.icatch.SysException: Error in init(): Log already in use异常，这个信息是因为atomikos在默认情况下是将console_file_name和log_base_name设置为默认值：tm.out和tmlog0.log，并且会将这两个文件上锁，导致其他线程无法访问，所以当多个项目都未指定这一名称时就会出现上述异常信息。 比如说：我有一个项目serviceA，一个项目serviceB，一些公共Bean，Common，Utils等都被两个项目引用，然后在本地或者同一环境中先启动一个，第二个启动必然报以上的错。 三、解决办法：

• 网上解决方案示例：不过我设置了也没有成功

在每一个项目中都指定atomikos的文件名称，修改jta.properties文件中的

• com.atomikos.icatch.console_file_name
• com.atomikos.icatch.log_base_name

两个属性的值，保证每个项目的名称都不一样

• 自己暂时的解决方案：后续补上完整的正确方案

• 注释了spring分布式事物管理相关代码，多个数据源不需要注释