我有一个spring boot应用程序，它侦听RabbitMQ队列。 问题是，当我运行我的应用程序时，它会挂在特定的一步 休眠，大约需要10分钟才能继续。
以下是挂起的地方
INFO [] org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/] - Initializing Spring embedded WebApplicationContext
INFO [] org.springframework.web.context.ContextLoader - Root WebApplicationContext: initialization completed in 3338 ms
INFO [] org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor - Initializing ExecutorService 'metricsExecutor'
INFO [] org.springframework.boot.context.embedded.ServletRegistrationBean - Mapping servlet: 'dispatcherServlet' to [/]
INFO [] org.springframework.boot.context.embedded.FilterRegistrationBean - Mapping filter: 'metricFilter' to: [/*]
INFO [] org.springframework.boot.context.embedded.FilterRegistrationBean - Mapping filter: 'characterEncodingFilter' to: [/*]
INFO [] org.springframework.boot.context.embedded.FilterRegistrationBean - Mapping filter: 'webRequestLoggingFilter' to: [/*]
INFO [] org.springframework.boot.context.embedded.FilterRegistrationBean - Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
INFO [] org.springframework.boot.context.embedded.FilterRegistrationBean - Mapping filter: 'applicationContextIdFilter' to: [/*]
[main] INFO [] org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean - Building JPA container EntityManagerFactory for persistence unit 'default'
[main] INFO [] org.hibernate.jpa.internal.util.LogHelper - HHH000204: Processing PersistenceUnitInfo [
name: default
...]
[main] INFO [] org.hibernate.Version - HHH000412: Hibernate Core {4.3.7.Final}
[main] INFO [] org.hibernate.cfg.Environment - HHH000205: Loaded properties from resource hibernate.properties: {hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect, hibernate.show_sql=true, hibernate.bytecode.use_reflection_optimizer=false, hibernate.format_sql=true, hibernate.ejb.naming_strategy=org.hibernate.cfg.DefaultNamingStrategy}
[main] INFO [] org.hibernate.cfg.Environment - HHH000021: Bytecode provider name : javassist
[main] INFO [] org.hibernate.annotations.common.Version - HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
以下是时间信息
2015-07-08 09:31:16,714 [main] INFO [] org.hibernate.Version - HHH000412: Hibernate Core {4.3.7.Final}
2015-07-08 09:31:16,717 [main] INFO [] org.hibernate.cfg.Environment - HHH000205: Loaded properties from resource hibernate.properties: {hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect, hibernate.show_sql=true, hibernate.bytecode.use_reflection_optimizer=false, hibernate.format_sql=true, hibernate.ejb.naming_strategy=org.hibernate.cfg.DefaultNamingStrategy}
2015-07-08 09:31:16,717 [main] INFO [] org.hibernate.cfg.Environment - HHH000021: Bytecode provider name : javassist
2015-07-08 09:31:16,895 [main] INFO [] org.hibernate.annotations.common.Version - HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
在上面一行中，它会挂起8分钟，然后会生成以下日志，等待任何消息。
15-07-14 15:36:22,917 [main] INFO [] com.test.myApp.reporting.service.Application
- Starting Application on hyd-rupakular-m.local with PID 654 (/Users/myUser/code/myRepo/target/classes started by rupakulr in /Users/myuser/myRepo/xyzabc)
2015-07-14 15:36:22,966 [main] INFO [] org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext - Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@5fa0d903: startup date [Tue Jul 14 15:36:22 IST 2015]; root of context hierarchy
2015-07-14 15:36:24,023 [main] INFO [] org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [spring-integration-context.xml]
2015-07-14 15:36:24,332 [main] INFO [] org.springframework.beans.factory.config.PropertiesFactoryBean - Loading properties file from URL [jar:file:/Users/rupakulr/.m2/repository/org/springframework/integration/spring-integration-core/4.1.2.RELEASE/spring-integration-core-4.1.2.RELEASE.jar!/META-INF/spring.integration.default.properties]
2015-07-14 15:45:09,646 [main] INFO [] org.springframework.boot.actuate.endpoint.mvc.EndpointHandlerMapping - Mapped "{[/manage/env],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2015-07-14 15:45:09,646 [main] INFO [] org.springframework.boot.actuate.endpoint.mvc.EndpointHandlerMapping - Mapped "{[/manage/metrics/{name:.*}],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.MetricsMvcEndpoint.value(java.lang.String)
2015-07-14 15:45:09,646 [main] INFO [] org.springframework.boot.actuate.endpoint.mvc.EndpointHandlerMapping - Mapped "{[/manage/metrics],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2015-07-14 15:45:09,647 [main] INFO [] org.springframework.boot.actuate.endpoint.mvc.EndpointHandlerMapping - Mapped "{[/manage/mappings],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2015-07-14 15:45:09,647 [main] INFO [] org.springframework.boot.actuate.endpoint.mvc.EndpointHandlerMapping - Mapped "{[/manage/trace],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2015-07-14 15:45:09,647 [main] INFO [] org.springframework.boot.actuate.endpoint.mvc.EndpointHandlerMapping - Mapped "{[/manage/shutdown],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.ShutdownMvcEndpoint.invoke()
2015-07-14 15:45:09,647 [main] INFO [] org.springframework.boot.actuate.endpoint.mvc.EndpointHandlerMapping - Mapped "{[/manage/beans],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2015-07-14 15:45:09,700 [main] INFO [] org.springframework.jmx.export.annotation.AnnotationMBeanExporter - Registering beans for JMX exposure on startup
2015-07-14 15:45:09,708 [main] INFO [] org.springframework.jmx.export.annotation.AnnotationMBeanExporter - Bean with name 'org.springframework.integration.channel.interceptor.WireTap#0' has been autodetected for JMX exposure
2015-07-14 15:45:09,708 [main] INFO [] org.springframework.jmx.export.annotation.AnnotationMBeanExporter - Bean with name 'org.springframework.integration.channel.interceptor.WireTap#1' has been autodetected for JMX exposure
2015-07-14 15:45:09,709 [main] INFO [] org.springframework.jmx.export.annotation.AnnotationMBeanExporter - Bean with name 'org.springframework.integration.config.RouterFactoryBean#0' has been autodetected for JMX exposure
2015-07-14 15:45:09,712 [main] INFO [] org.springframework.jmx.export.annotation.AnnotationMBeanExporter - Located managed bean 'org.springframework.integration.channel.interceptor.WireTap#0': registering with JMX server as MBean [org.springframework.integration.channel.interceptor:name=org.springframework.integration.channel.interceptor.WireTap#0,type=WireTap]
2015-07-14 15:45:09,726 [main] INFO [] org.springframework.jmx.export.annotation.AnnotationMBeanExporter - Located managed bean 'org.springframework.integration.channel.interceptor.WireTap#1': registering with JMX server as MBean [org.springframework.integration.channel.interceptor:name=org.springframework.integration.channel.interceptor.WireTap#1,type=WireTap]
2015-07-14 15:45:09,730 [main] INFO [] org.springframework.jmx.export.annotation.AnnotationMBeanExporter - Located managed bean 'org.springframework.integration.config.RouterFactoryBean#0': registering with JMX server as MBean [org.springframework.integration.router:name=org.springframework.integration.config.RouterFactoryBean#0,type=HeaderValueRouter]
2015-07-14 15:45:09,745 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Registering beans for JMX exposure on startup
2015-07-14 15:45:09,749 [main] INFO [] org.springframework.context.support.DefaultLifecycleProcessor - Starting beans in phase -2147483648
2015-07-14 15:45:09,750 [main] INFO [] org.springframework.context.support.DefaultLifecycleProcessor - Starting beans in phase 0
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - Adding {router} as a subscriber to the 'reporting-dealer-compliance-dealer-list-channel' channel
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.channel.DirectChannel - Channel 'application:8204.reporting-dealer-compliance-dealer-list-channel' has 1 subscriber(s).
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - started org.springframework.integration.config.ConsumerEndpointFactoryBean#0
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - Adding {object-to-json-transformer} as a subscriber to the 'reporting-dealer-compliance-dealer-compliance-json-channel' channel
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.channel.DirectChannel - Channel 'application:8204.reporting-dealer-compliance-dealer-compliance-json-channel' has 1 subscriber(s).
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - started org.springframework.integration.config.ConsumerEndpointFactoryBean#1
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - Adding {logging-channel-adapter:logging-channel.adapter} as a subscriber to the 'logging-channel' channel
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.channel.DirectChannel - Channel 'application:8204.logging-channel' has 1 subscriber(s).
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - started logging-channel.adapter
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - Adding {stream:outbound-channel-adapter(character):std-out-channel.adapter} as a subscriber to the 'std-out-channel' channel
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.channel.DirectChannel - Channel 'application:8204.std-out-channel' has 1 subscriber(s).
2015-07-14 15:45:09,751 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - started std-out-channel.adapter
2015-07-14 15:45:10,968 [main] INFO [] org.springframework.integration.amqp.inbound.AmqpInboundGateway - started org.springframework.integration.amqp.inbound.AmqpInboundGateway#0
2015-07-14 15:45:10,968 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - Adding {amqp:outbound-channel-adapter:invalidMessageChannelAdapter} as a subscriber to the 'invalid-message-channel' channel
2015-07-14 15:45:10,968 [main] INFO [] org.springframework.integration.channel.DirectChannel - Channel 'application:8204.invalid-message-channel' has 2 subscriber(s).
2015-07-14 15:45:10,968 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - started invalidMessageChannelAdapter
2015-07-14 15:45:10,968 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - Adding {service-activator} as a subscriber to the 'failed-channel' channel
2015-07-14 15:45:10,968 [main] INFO [] org.springframework.integration.channel.DirectChannel - Channel 'application:8204.failed-channel' has 1 subscriber(s).
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - started org.springframework.integration.config.ConsumerEndpointFactoryBean#2
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - Adding {amqp:outbound-channel-adapter:failedMessageChannelAdapter} as a subscriber to the 'failed-channel' channel
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.channel.DirectChannel - Channel 'application:8204.failed-channel' has 2 subscriber(s).
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - started failedMessageChannelAdapter
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.handler.MessageHandlerChain - started org.springframework.integration.handler.MessageHandlerChain#0
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - Adding {chain} as a subscriber to the 'reporting-dealer-compliance-inbound-channel' channel
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.channel.DirectChannel - Channel 'application:8204.reporting-dealer-compliance-inbound-channel' has 1 subscriber(s).
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - started org.springframework.integration.config.ConsumerEndpointFactoryBean#3
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.handler.MessageHandlerChain - started org.springframework.integration.handler.MessageHandlerChain#1
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - Adding {chain} as a subscriber to the 'prepare-csv' channel
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.channel.DirectChannel - Channel 'application:8204.prepare-csv' has 1 subscriber(s).
2015-07-14 15:45:10,969 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - started org.springframework.integration.config.ConsumerEndpointFactoryBean#4
2015-07-14 15:45:10,971 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'requestMappingEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=requestMappingEndpoint]
2015-07-14 15:45:10,979 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'environmentEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=environmentEndpoint]
2015-07-14 15:45:10,986 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'healthEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=healthEndpoint]
2015-07-14 15:45:10,992 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'beansEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=beansEndpoint]
2015-07-14 15:45:10,997 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'infoEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=infoEndpoint]
2015-07-14 15:45:11,003 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'metricsEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=metricsEndpoint]
2015-07-14 15:45:11,009 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'traceEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=traceEndpoint]
2015-07-14 15:45:11,014 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'dumpEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=dumpEndpoint]
2015-07-14 15:45:11,020 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'autoConfigurationAuditEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=autoConfigurationAuditEndpoint]
2015-07-14 15:45:11,026 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'shutdownEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=shutdownEndpoint]
2015-07-14 15:45:11,032 [main] INFO [] org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter - Located managed bean 'configurationPropertiesReportEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=configurationPropertiesReportEndpoint]
2015-07-14 15:45:11,037 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - Adding {logging-channel-adapter:_org.springframework.integration.errorLogger} as a subscriber to the 'errorChannel' channel
2015-07-14 15:45:11,037 [main] INFO [] org.springframework.integration.channel.PublishSubscribeChannel - Channel 'application:8204.errorChannel' has 1 subscriber(s).
2015-07-14 15:45:11,037 [main] INFO [] org.springframework.integration.endpoint.EventDrivenConsumer - started _org.springframework.integration.errorLogger
2015-07-14 15:45:11,037 [main] INFO [] org.springframework.context.support.DefaultLifecycleProcessor - Starting beans in phase 2147483647
2015-07-14 15:45:11,089 [main] INFO [] org.apache.coyote.http11.Http11NioProtocol - Initializing ProtocolHandler ["http-nio-8204"]
2015-07-14 15:45:11,095 [main] INFO [] org.apache.coyote.http11.Http11NioProtocol - Starting ProtocolHandler ["http-nio-8204"]
2015-07-14 15:45:11,100 [main] INFO [] org.apache.tomcat.util.net.NioSelectorPool - Using a shared selector for servlet write/read
2015-07-14 15:45:11,112 [main] INFO [] org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer - Tomcat started on port(s): 8204 (http)
2015-07-14 15:45:11,115 [main] INFO [] com.test.myApp.reporting.service.Application - Started Application in 528.444 seconds (JVM running for 529.101)
我们在开发应用程序时遇到很多问题，每次进行一些更改时，我们都要等待8分钟来测试我们的更改。
答案 0 :(得分：8)
如果您在Linux上运行应用程序，请尝试将此属性添加到java命令行：
-Djava.security.egd=file:/dev/./urandom
E.g：
/usr/bin/java -Xmx75m -Djava.security.egd=file:/dev/./urandom -jar app.jar
我遇到了类似的问题，虽然它不需要花费8分钟但只需要3个左右才能启动应用程序，这样就解决了这个问题。
答案 1 :(得分：1)
我想我遇到过类似的问题。在我的情况下，开始时间与数据库大小成正比。而整个问题是hibernate（我们使用hibernate-core-5.0.2-Final）从DB加载完整的元数据只是为了获得Dialect值。
我们现在使用以下属性来禁用：
spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults=false
但请确保指定'spring.jpa.database-platform'值正确。
以下是JdbcEnvironmentInitiator.java文件的相关部分：
@Override
public JdbcEnvironment initiateService(Map configurationValues, ServiceRegistryImplementor registry) {
final DialectFactory dialectFactory = registry.getService( DialectFactory.class );
// 'hibernate.temp.use_jdbc_metadata_defaults' is a temporary magic value.
// The need for it is intended to be alleviated with future development, thus it is
// not defined as an Environment constant...
//
// it is used to control whether we should consult the JDBC metadata to determine
// certain Settings default values; it is useful to *not* do this when the database
// may not be available (mainly in tools usage).
boolean useJdbcMetadata = ConfigurationHelper.getBoolean(
"hibernate.temp.use_jdbc_metadata_defaults",
configurationValues,
true
);
if ( useJdbcMetadata ) {
final JdbcConnectionAccess jdbcConnectionAccess = buildJdbcConnectionAccess( configurationValues, registry );
try {
final Connection connection = jdbcConnectionAccess.obtainConnection();
try {
final DatabaseMetaData dbmd = connection.getMetaData();
if ( log.isDebugEnabled() ) {
log.debugf(
"Database ->\n"
+ " name : %s\n"
+ " version : %s\n"
+ " major : %s\n"
+ " minor : %s",
dbmd.getDatabaseProductName(),
dbmd.getDatabaseProductVersion(),
dbmd.getDatabaseMajorVersion(),
dbmd.getDatabaseMinorVersion()
);
log.debugf(
"Driver ->\n"
+ " name : %s\n"
+ " version : %s\n"
+ " major : %s\n"
+ " minor : %s",
dbmd.getDriverName(),
dbmd.getDriverVersion(),
dbmd.getDriverMajorVersion(),
dbmd.getDriverMinorVersion()
);
log.debugf( "JDBC version : %s.%s", dbmd.getJDBCMajorVersion(), dbmd.getJDBCMinorVersion() );
}
Dialect dialect = dialectFactory.buildDialect(
configurationValues,
new DialectResolutionInfoSource() {
@Override
public DialectResolutionInfo getDialectResolutionInfo() {
try {
return new DatabaseMetaDataDialectResolutionInfoAdapter( connection.getMetaData() );
}
catch ( SQLException sqlException ) {
throw new HibernateException(
"Unable to access java.sql.DatabaseMetaData to determine appropriate Dialect to use",
sqlException
);
}
}
}
);
return new JdbcEnvironmentImpl(
registry,
dialect,
dbmd
);
}
catch (SQLException e) {
log.unableToObtainConnectionMetadata( e.getMessage() );
}
finally {
try {
jdbcConnectionAccess.releaseConnection( connection );
}
catch (SQLException ignore) {
}
}
}
catch (Exception e) {
log.unableToObtainConnectionToQueryMetadata( e.getMessage() );
}
}
// if we get here, either we were asked to not use JDBC metadata or accessing the JDBC metadata failed.
return new JdbcEnvironmentImpl( registry, dialectFactory.buildDialect( configurationValues, null ) );
}