"Netty'nin sınıf yolunda yerel epoll taşıma bulundu, ancak epoll kullanılamaz. NIO kullanarak yerine" uyarı? Ben, başlatma sırasında Cassandrayı ve kullanıyorum

, sayfa Yardım yığın iz bir uyarı yazdırır: sınıf yolunda Netty doğal epoll taşıma Bulunan"Netty'nin sınıf yolunda yerel epoll taşıma bulundu, ancak epoll kullanılamaz. NIO kullanarak yerine" uyarı? Ben, başlatma sırasında Cassandrayı ve kullanıyorum

ancak epoll kullanılamaz. . Bunun yerine NIO kullanma"

uygulama normalde çalışır, ancak uyarı düzeltmek için bir yol yoktur İşte

tam Yığın izleme:?

16:29:46 WARN com.datastax.driver.core.NettyUtil - Found Netty's native epoll transport in the classpath, but epoll is not available. Using NIO instead. 
java.lang.UnsatisfiedLinkError: no netty-transport-native-epoll in java.library.path 
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1867) 
    at java.lang.Runtime.loadLibrary0(Runtime.java:870) 
    at java.lang.System.loadLibrary(System.java:1122) 
    at io.netty.util.internal.NativeLibraryLoader.load(NativeLibraryLoader.java:168) 
    at io.netty.channel.epoll.Native.<clinit>(Native.java:49) 
    at io.netty.channel.epoll.Epoll.<clinit>(Epoll.java:30) 
    at java.lang.Class.forName0(Native Method) 
    at java.lang.Class.forName(Class.java:264) 
    at com.datastax.driver.core.NettyUtil.<clinit>(NettyUtil.java:68) 
    at com.datastax.driver.core.NettyOptions.eventLoopGroup(NettyOptions.java:101) 
    at com.datastax.driver.core.Connection$Factory.<init>(Connection.java:709) 
    at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1386) 
    at com.datastax.driver.core.Cluster.init(Cluster.java:162) 
    at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:341) 
    at com.datastax.driver.core.Cluster.connect(Cluster.java:286) 
    at org.springframework.cassandra.config.CassandraCqlSessionFactoryBean.connect(CassandraCqlSessionFactoryBean.java:100) 
    at org.springframework.cassandra.config.CassandraCqlSessionFactoryBean.afterPropertiesSet(CassandraCqlSessionFactoryBean.java:94) 
    at org.springframework.data.cassandra.config.CassandraSessionFactoryBean.afterPropertiesSet(CassandraSessionFactoryBean.java:60) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1642) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1579) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) 
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:207) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1128) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1056) 
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835) 
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) 
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:467) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1128) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1023) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1486) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1231) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) 
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:207) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1128) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1056) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:566) 
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:349) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1219) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:751) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) 
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) 
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) 
    ...

kaynak

2016-11-22 Philipp Claßen

Uyarı bana kafa karıştırıcı. Eğer bulunursa, neden mevcut değildir? Eğer bulunursa, cevabınızda bahsettiğiniz kütüphaneye zaten sahip olmanızdır. Bana bunu çıkaramadığı gibi görünüyor. DEBUG günlüklerini Netty'den açmalı ve ne yapmaya çalıştığını görmelisiniz. Geçici bir dizine ya da başka bir şeye çıkarmak başarısız olmuş olabilir. –

@SotiriosDelimanolis Netty belgelerinden alıntı yapmak için: "Doğal ulaşım Netty çekirdeğinin bir parçası olmadığı için, Maven pom.xml'inize bir bağımlılık olarak netty-transport-native-epoll'u çekmeniz gerekir". Dolayısıyla çözüm, yerel bağımlılığı eklemektir. Cevabımda yazdıklarım buydu. –

Ah, daha fazla kafa karıştırıcı olan sürücünün günlük mesajı. Netty, “netty-transport-native-epoll” un varlığını kontrol etmek için “netty-all” içindeki “Epoll” sınıfını sağlar. –

Linux üzerinde çalıştırıyorsanız , sen yerel Linux sürücüsünü kullanabilirsiniz örneğin, Maven kullanıyorsanız, böyle bir bağımlılık ekleyin:.

<dependency> 
    <groupId>io.netty</groupId> 
    <artifactId>netty-transport-native-epoll</artifactId> 
    <version>4.0.27.Final</version> 
    <classifier>linux-x86_64</classifier> 
</dependency>

bir Altern ative, uyarıyı -Dcom.datastax.driver.FORCE_NIO=true ayarlayarak iptal edebilirsiniz. Sadece bir performans optimizasyonu olduğu için, bunu göz ardı etmek uygun bir seçenektir.

Daha fazla bilgi için, Netty documentation about native transports'a bakın.

kaynak

2016-11-22 16:06:07

Yine de ekledim, ubuntu 17 tls kullanıyorum – kn3l

"Netty'nin sınıf yolunda yerel epoll taşıma bulundu, ancak epoll kullanılamaz. NIO kullanarak yerine" uyarı? Ben, başlatma sırasında Cassandrayı ve kullanıyorum

cevap

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