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异常信息


2018-05-21 18:38:05.851 ERROR 18796 --- [nio-8082-exec-4] i.r.common.exception.RRExceptionHandler  : org.apache.zookeeper.KeeperException$NoAuthException: KeeperErrorCode = NoAuth for /nb-conf/ent5/datasource

org.I0Itec.zkclient.exception.ZkException: org.apache.zookeeper.KeeperException$NoAuthException: KeeperErrorCode = NoAuth for /nb-conf/ent5/datasource
	at org.I0Itec.zkclient.exception.ZkException.create(ZkException.java:68)
	at org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:1001)
	at org.I0Itec.zkclient.ZkClient.writeDataReturnStat(ZkClient.java:1148)
	at org.I0Itec.zkclient.ZkClient.writeData(ZkClient.java:1143)
	at org.I0Itec.zkclient.ZkClient.writeData(ZkClient.java:1111)
	at io.newbanker.xxlconf.XxlConfManager.set(XxlConfManager.java:81)
	at io.newbanker.xxlconf.SyncConfiguartionToZkAspect.around(SyncConfiguartionToZkAspect.java:77)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:629)
	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:618)
	at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:168)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
	at io.newbanker.modules.sys.service.impl.WbsJdbcServiceImpl$$EnhancerBySpringCGLIB$$4240382a.syncConfiguartionToZk(<generated>)
	at io.newbanker.modules.sys.service.impl.WbsJdbcServiceImpl$$FastClassBySpringCGLIB$$391fa112.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:669)
	at io.newbanker.modules.sys.service.impl.WbsJdbcServiceImpl$$EnhancerBySpringCGLIB$$51cbc5d1.syncConfiguartionToZk(<generated>)
	at io.newbanker.modules.sys.controller.WbsJdbcController.update(WbsJdbcController.java:120)
	at io.newbanker.modules.sys.controller.WbsJdbcController$$FastClassBySpringCGLIB$$80fb59c2.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor$1.proceed(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:82)
	at org.apache.shiro.authz.aop.AuthorizingMethodInterceptor.invoke(AuthorizingMethodInterceptor.java:39)
	at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor.invoke(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:115)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
	at io.newbanker.modules.sys.controller.WbsJdbcController$$EnhancerBySpringCGLIB$$ff1d5a94.update(<generated>)
	at io.newbanker.modules.sys.controller.WbsJdbcController$$FastClassBySpringCGLIB$$80fb59c2.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor$1.proceed(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:82)
	at org.apache.shiro.authz.aop.AuthorizingMethodInterceptor.invoke(AuthorizingMethodInterceptor.java:39)
	at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor.invoke(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:115)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
	at io.newbanker.modules.sys.controller.WbsJdbcController$$EnhancerBySpringCGLIB$$e8d9c69e.update(<generated>)
	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.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:112)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at io.renren.common.xss.XssFilter.doFilter(XssFilter.java:23)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
	at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
	at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
	at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
	at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
	at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.zookeeper.KeeperException$NoAuthException: KeeperErrorCode = NoAuth for /nb-conf/ent5/datasource
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:113)
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
	at org.apache.zookeeper.ZooKeeper.setData(ZooKeeper.java:1327)
	at org.I0Itec.zkclient.ZkConnection.writeDataReturnStat(ZkConnection.java:139)
	at org.I0Itec.zkclient.ZkClient$13.call(ZkClient.java:1152)
	at org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:991)
	... 129 common frames omitted

 

场景说明

    接着前一篇《zk Acl权限：只有一个账号有所有权限，其他匿名用户只有读权限》，实现了这个之后，存在一个bug：

    当zkClient与zk服务断了链接并且重试时间超过（org.I0Itec.zkclient.ZkClient#_operationRetryTimeoutInMillis）之后，就会重新reconnect，重新reconnect操作，会重新new一个`_zk`，导致之前addAuthInfo的acl权限信息，被覆盖掉。从而导致了reconnect之后，对节点进行cdwa操作，都会报错：org.apache.zookeeper.KeeperException$NoAuthException: KeeperErrorCode = NoAuth for /nb-conf/ent5/datasource

1、首先，是自己定义的工具类：

@Component
public class XxlConfManager implements InitializingBean, DisposableBean {

    @Value("${xxl.conf.admin.zkaddress}")
    private String zkaddress;

    @Value("${xxl.conf.admin.zkpath}")
    private String zkpath;

    @Value("${xxl.conf.admin.zkUserName}")
    private String zkUserName;

    @Value("${xxl.conf.admin.zkPassword}")
    private String zkPassword;

    private String idPassword;

    private static final String digest = "digest";

    private static ZkClient zkClient = null;

    @Override
    public void afterPropertiesSet() throws Exception {
        // 创建zkClient，并设置权限信息
        zkClient = new ZkClient(zkaddress);
        idPassword = zkUserName + ":" + zkPassword;
        zkClient.setZkSerializer(new JsonZkSerializer());
        zkClient.addAuthInfo(digest, idPassword.getBytes());
    }
}

2、org.I0Itec.zkclient.ZkClient#addAuthInfo

    /**
     * Add authentication information to the connection. This will be used to identify the user and check access to
     * nodes protected by ACLs
     * 
     * @param scheme
     * @param auth
     */
    public void addAuthInfo(final String scheme, final byte[] auth) {
        retryUntilConnected(new Callable<Object>() {
            @Override
            public Object call() throws Exception {
                _connection.addAuthInfo(scheme, auth);
                return null;
            }
        });
    }

3、org.I0Itec.zkclient.ZkConnection#addAuthInfo——这个方法相当于是登录zk的账号、密码

    private ZooKeeper _zk = null;

    @Override
    public void addAuthInfo(String scheme, byte[] auth) {
        _zk.addAuthInfo(scheme, auth);
    }

 

再来看看zkClient断开连接后reconnect的方法：

1、org.I0Itec.zkclient.ZkClient#reconnect

    private void reconnect() {
        getEventLock().lock();
        try {
            _connection.close();
            _connection.connect(this);                // 注1
        } catch (InterruptedException e) {
            throw new ZkInterruptedException(e);
        } finally {
            getEventLock().unlock();
        }
    }

2、点进去看‘注1’方法：org.I0Itec.zkclient.ZkConnection#connect

    @Override
    public void connect(Watcher watcher) {
        _zookeeperLock.lock();
        try {
            if (_zk != null) {
                throw new IllegalStateException("zk client has already been started");
            }
            try {
                LOG.debug("Creating new ZookKeeper instance to connect to " + _servers + ".");
                _zk = new ZooKeeper(_servers, _sessionTimeOut, watcher);      // 注2
            } catch (IOException e) {
                throw new ZkException("Unable to connect to " + _servers, e);
            }
        } finally {
            _zookeeperLock.unlock();
        }
    }

可以发现，注2的位置，新new了一个ZooKeeper。

简述一下上面源码的意思：

    addAuthInfo是给org.I0Itec.zkclient.ZkConnection#_zk对象设置权限信息，然后重新连接时，先废除了之前的org.I0Itec.zkclient.ZkConnection#_zk对象：

            // org.I0Itec.zkclient.ZkConnection#close方法，代码片段

            if (_zk != null) {
                _zk.close();
                _zk = null;
            }

然后再new一个新的zk对象

_zk = new ZooKeeper(_servers, _sessionTimeOut, watcher);

所以_zk的权限信息，就被覆盖掉了。重新对znode进行cdea操作，就会报错：org.apache.zookeeper.KeeperException$NoAuthException: KeeperErrorCode = NoAuth for /nb-conf/ent5/datasource

 

异常重现

    先正常连接上zk（在另外一台机器上的zk），然后断掉网（拔网线，关wifi等），然后重试时间超过org.I0Itec.zkclient.ZkClient#_operationRetryTimeoutInMillis（其实就是connectionTimeout），就会reconnect。此时再触发一次对znode的写操作，就报错了。

 

解决方案

    思路：既然报错，那就try-catch，然后判断异常是否是org.apache.zookeeper.KeeperException$NoAuthException，如果是的话，说明就是reconnect之后，权限信息被清空导致的，那就在catch中，给在addAuthInfo一下，不就完了。

    代码如下：

    private static ZkClient zkClient = null;

    // 在afterPropertiesSet()方法中，创建zkClient的代码上面有，这里略。

    public void set(String path, String data) {
        try {
            _set(path, data);
        } catch (Exception e) {
            // 主要这里不是e instanceof KeeperException.NoAuthException。原因看：org.I0Itec.zkclient.exception.ZkException#create
            if (e.getCause() instanceof KeeperException.NoAuthException) {
                zkClient.addAuthInfo(digest, idPassword.getBytes());
            }
            _set(path, data);
        }
    }
    private void _set(String path, String data) {
        createPathIfNotExists(path);
        zkClient.writeData(path, data);
    }

    思路就是这个思路。另外在delete方法也要加，因为zkClient重连接后，调用了delete方法，也可能会出现NoAuthException。

（实现功能即可、没有代码洁癖的同学，下面就不用看了。）

 

使用aop对解决方案优化

    直接按照上面方式加上也行。但是这里模板方法抽取使用aop，还是比较好的于是：（先要实现功能的同学，下面就不用看了。）

    使用aop方式去掉重复代码方式实现思路：

1、先定义个注解，我们给加了此注解的方法使用aop

import java.lang.annotation.*;

@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface ResetAclIfNoauth {

}

2、aop

package io.newbanker.xxlconf;

import org.apache.zookeeper.KeeperException;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
@Aspect
public class ZkNoAuthExceptionAspect {
    @Autowired
    private XxlConfManager xxlConfManager;

    @Pointcut("@annotation(io.newbanker.xxlconf.ResetAclIfNoauth)")
    public void pointcut() {
    }

    @Around("pointcut()")
    public Object around(ProceedingJoinPoint point) throws Throwable {

        try {
            return point.proceed();
        } catch (Throwable e) {
            if (e.getCause() instanceof KeeperException.NoAuthException) {
                xxlConfManager.addAuthInfo();
            }
            return point.proceed();
        }
    }
}

3、对原有自己封装的zk工具类进行修改：

151016_Jwie_2475326.png

151203_KiqI_2475326.png

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

转载于:https://my.oschina.net/anxiaole/blog/1816553

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