org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /otter/channel/6/

Posted 2022-11-28 叶威1

HTTP ERROR 500

Problem accessing /channelList.htm. Reason:

Failed to invoke Valve[#2/3, level 3]: com.alibaba.citrus.turbine.pipeline.valve.PerformTemplateScreenValve#14366f3:PerformTemplateScreenValve

Caused by:

com.alibaba.citrus.service.pipeline.PipelineException: Failed to invoke Valve[#2/3, level 3]: com.alibaba.citrus.turbine.pipeline.valve.PerformTemplateScreenValve#14366f3:PerformTemplateScreenValve
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:161)
at com.alibaba.citrus.turbine.pipeline.valve.PerformActionValve.invoke(PerformActionValve.java:73)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.service.pipeline.impl.valve.ChooseValve.invoke(ChooseValve.java:98)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.service.pipeline.impl.valve.LoopValve.invokeBody(LoopValve.java:105)
at com.alibaba.citrus.service.pipeline.impl.valve.LoopValve.invoke(LoopValve.java:83)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.CheckCsrfTokenValve.invoke(CheckCsrfTokenValve.java:123)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.otter.manager.web.webx.valve.AuthContextValve.invoke(AuthContextValve.java:117)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.AnalyzeURLValve.invoke(AnalyzeURLValve.java:126)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.SetLoggingContextValve.invoke(SetLoggingContextValve.java:66)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.PrepareForTurbineValve.invoke(PrepareForTurbineValve.java:52)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.webx.impl.WebxControllerImpl.service(WebxControllerImpl.java:43)
at com.alibaba.citrus.webx.impl.WebxRootControllerImpl.handleRequest(WebxRootControllerImpl.java:53)
at com.alibaba.citrus.webx.support.AbstractWebxRootController.service(AbstractWebxRootController.java:165)
at com.alibaba.citrus.webx.servlet.WebxFrameworkFilter.doFilter(WebxFrameworkFilter.java:152)
at com.alibaba.citrus.webx.servlet.FilterBean.doFilter(FilterBean.java:147)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
at com.alibaba.citrus.webx.servlet.SetLoggingContextFilter.doFilter(SetLoggingContextFilter.java:61)
at com.alibaba.citrus.webx.servlet.FilterBean.doFilter(FilterBean.java:147)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:559)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:365)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:627)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:51)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:662)
Caused by: com.alibaba.citrus.webx.WebxException: Failed to execute screen: ChannelList
at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.performScreenModule(PerformScreenValve.java:126)
at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.invoke(PerformScreenValve.java:74)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
... 51 more
Caused by: org.I0Itec.zkclient.exception.ZkNoNodeException: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /otter/channel/6/6/process
at org.I0Itec.zkclient.exception.ZkException.create(ZkException.java:47)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.retryUntilConnected(ZkClientx.java:785)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.getChildren(ZkClientx.java:511)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.getChildren(ZkClientx.java:507)
at com.alibaba.otter.shared.arbitrate.impl.ArbitrateViewServiceImpl.listProcesses(ArbitrateViewServiceImpl.java:99)
at com.alibaba.otter.manager.biz.statistics.stage.impl.ProcessStatServiceImpl.listRealtimeProcessStat(ProcessStatServiceImpl.java:49)
at com.alibaba.otter.manager.web.home.module.screen.ChannelList.execute(ChannelList.java:94)
at com.alibaba.otter.manager.web.home.module.screen.ChannelList$$FastClassByCGLIB$$586d24fe.invoke()
at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
at com.alibaba.citrus.service.moduleloader.impl.adapter.MethodInvoker.invoke(MethodInvoker.java:70)
at com.alibaba.citrus.service.moduleloader.impl.adapter.DataBindingAdapter.executeAndReturn(DataBindingAdapter.java:41)
at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.performScreenModule(PerformScreenValve.java:111)
... 53 more
Caused by: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /otter/channel/6/6/process
at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1468)
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1496)
at com.alibaba.otter.shared.common.utils.zookeeper.ZooKeeperx.getChildren(ZooKeeperx.java:123)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx$3.call(ZkClientx.java:515)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx$3.call(ZkClientx.java:511)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.retryUntilConnected(ZkClientx.java:775)
... 63 more
Caused by:

com.alibaba.citrus.webx.WebxException: Failed to execute screen: ChannelList
at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.performScreenModule(PerformScreenValve.java:126)
at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.invoke(PerformScreenValve.java:74)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.PerformActionValve.invoke(PerformActionValve.java:73)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.service.pipeline.impl.valve.ChooseValve.invoke(ChooseValve.java:98)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.service.pipeline.impl.valve.LoopValve.invokeBody(LoopValve.java:105)
at com.alibaba.citrus.service.pipeline.impl.valve.LoopValve.invoke(LoopValve.java:83)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.CheckCsrfTokenValve.invoke(CheckCsrfTokenValve.java:123)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.otter.manager.web.webx.valve.AuthContextValve.invoke(AuthContextValve.java:117)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.AnalyzeURLValve.invoke(AnalyzeURLValve.java:126)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.SetLoggingContextValve.invoke(SetLoggingContextValve.java:66)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.PrepareForTurbineValve.invoke(PrepareForTurbineValve.java:52)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.webx.impl.WebxControllerImpl.service(WebxControllerImpl.java:43)
at com.alibaba.citrus.webx.impl.WebxRootControllerImpl.handleRequest(WebxRootControllerImpl.java:53)
at com.alibaba.citrus.webx.support.AbstractWebxRootController.service(AbstractWebxRootController.java:165)
at com.alibaba.citrus.webx.servlet.WebxFrameworkFilter.doFilter(WebxFrameworkFilter.java:152)
at com.alibaba.citrus.webx.servlet.FilterBean.doFilter(FilterBean.java:147)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
at com.alibaba.citrus.webx.servlet.SetLoggingContextFilter.doFilter(SetLoggingContextFilter.java:61)
at com.alibaba.citrus.webx.servlet.FilterBean.doFilter(FilterBean.java:147)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:559)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:365)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:627)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:51)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.I0Itec.zkclient.exception.ZkNoNodeException: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /otter/channel/6/6/process
at org.I0Itec.zkclient.exception.ZkException.create(ZkException.java:47)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.retryUntilConnected(ZkClientx.java:785)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.getChildren(ZkClientx.java:511)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.getChildren(ZkClientx.java:507)
at com.alibaba.otter.shared.arbitrate.impl.ArbitrateViewServiceImpl.listProcesses(ArbitrateViewServiceImpl.java:99)
at com.alibaba.otter.manager.biz.statistics.stage.impl.ProcessStatServiceImpl.listRealtimeProcessStat(ProcessStatServiceImpl.java:49)
at com.alibaba.otter.manager.web.home.module.screen.ChannelList.execute(ChannelList.java:94)
at com.alibaba.otter.manager.web.home.module.screen.ChannelList$$FastClassByCGLIB$$586d24fe.invoke()
at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
at com.alibaba.citrus.service.moduleloader.impl.adapter.MethodInvoker.invoke(MethodInvoker.java:70)
at com.alibaba.citrus.service.moduleloader.impl.adapter.DataBindingAdapter.executeAndReturn(DataBindingAdapter.java:41)
at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.performScreenModule(PerformScreenValve.java:111)
... 53 more
Caused by: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /otter/channel/6/6/process
at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1468)
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1496)
at com.alibaba.otter.shared.common.utils.zookeeper.ZooKeeperx.getChildren(ZooKeeperx.java:123)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx$3.call(ZkClientx.java:515)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx$3.call(ZkClientx.java:511)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.retryUntilConnected(ZkClientx.java:775)
... 63 more
Caused by:

org.I0Itec.zkclient.exception.ZkNoNodeException: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /otter/channel/6/6/process
at org.I0Itec.zkclient.exception.ZkException.create(ZkException.java:47)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.retryUntilConnected(ZkClientx.java:785)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.getChildren(ZkClientx.java:511)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.getChildren(ZkClientx.java:507)
at com.alibaba.otter.shared.arbitrate.impl.ArbitrateViewServiceImpl.listProcesses(ArbitrateViewServiceImpl.java:99)
at com.alibaba.otter.manager.biz.statistics.stage.impl.ProcessStatServiceImpl.listRealtimeProcessStat(ProcessStatServiceImpl.java:49)
at com.alibaba.otter.manager.web.home.module.screen.ChannelList.execute(ChannelList.java:94)
at com.alibaba.otter.manager.web.home.module.screen.ChannelList$$FastClassByCGLIB$$586d24fe.invoke()
at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
at com.alibaba.citrus.service.moduleloader.impl.adapter.MethodInvoker.invoke(MethodInvoker.java:70)
at com.alibaba.citrus.service.moduleloader.impl.adapter.DataBindingAdapter.executeAndReturn(DataBindingAdapter.java:41)
at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.performScreenModule(PerformScreenValve.java:111)
at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.invoke(PerformScreenValve.java:74)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.PerformActionValve.invoke(PerformActionValve.java:73)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.service.pipeline.impl.valve.ChooseValve.invoke(ChooseValve.java:98)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.service.pipeline.impl.valve.LoopValve.invokeBody(LoopValve.java:105)
at com.alibaba.citrus.service.pipeline.impl.valve.LoopValve.invoke(LoopValve.java:83)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.CheckCsrfTokenValve.invoke(CheckCsrfTokenValve.java:123)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.otter.manager.web.webx.valve.AuthContextValve.invoke(AuthContextValve.java:117)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.AnalyzeURLValve.invoke(AnalyzeURLValve.java:126)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.SetLoggingContextValve.invoke(SetLoggingContextValve.java:66)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.PrepareForTurbineValve.invoke(PrepareForTurbineValve.java:52)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.webx.impl.WebxControllerImpl.service(WebxControllerImpl.java:43)
at com.alibaba.citrus.webx.impl.WebxRootControllerImpl.handleRequest(WebxRootControllerImpl.java:53)
at com.alibaba.citrus.webx.support.AbstractWebxRootController.service(AbstractWebxRootController.java:165)
at com.alibaba.citrus.webx.servlet.WebxFrameworkFilter.doFilter(WebxFrameworkFilter.java:152)
at com.alibaba.citrus.webx.servlet.FilterBean.doFilter(FilterBean.java:147)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
at com.alibaba.citrus.webx.servlet.SetLoggingContextFilter.doFilter(SetLoggingContextFilter.java:61)
at com.alibaba.citrus.webx.servlet.FilterBean.doFilter(FilterBean.java:147)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:559)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:365)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:627)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:51)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /otter/channel/6/6/process
at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1468)
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1496)
at com.alibaba.otter.shared.common.utils.zookeeper.ZooKeeperx.getChildren(ZooKeeperx.java:123)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx$3.call(ZkClientx.java:515)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx$3.call(ZkClientx.java:511)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.retryUntilConnected(ZkClientx.java:775)
... 63 more
Caused by:

org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /otter/channel/6/6/process
at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1468)
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1496)
at com.alibaba.otter.shared.common.utils.zookeeper.ZooKeeperx.getChildren(ZooKeeperx.java:123)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx$3.call(ZkClientx.java:515)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx$3.call(ZkClientx.java:511)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.retryUntilConnected(ZkClientx.java:775)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.getChildren(ZkClientx.java:511)
at com.alibaba.otter.shared.common.utils.zookeeper.ZkClientx.getChildren(ZkClientx.java:507)
at com.alibaba.otter.shared.arbitrate.impl.ArbitrateViewServiceImpl.listProcesses(ArbitrateViewServiceImpl.java:99)
at com.alibaba.otter.manager.biz.statistics.stage.impl.ProcessStatServiceImpl.listRealtimeProcessStat(ProcessStatServiceImpl.java:49)
at com.alibaba.otter.manager.web.home.module.screen.ChannelList.execute(ChannelList.java:94)
at com.alibaba.otter.manager.web.home.module.screen.ChannelList$$FastClassByCGLIB$$586d24fe.invoke()
at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
at com.alibaba.citrus.service.moduleloader.impl.adapter.MethodInvoker.invoke(MethodInvoker.java:70)
at com.alibaba.citrus.service.moduleloader.impl.adapter.DataBindingAdapter.executeAndReturn(DataBindingAdapter.java:41)
at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.performScreenModule(PerformScreenValve.java:111)
at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.invoke(PerformScreenValve.java:74)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.PerformActionValve.invoke(PerformActionValve.java:73)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.service.pipeline.impl.valve.ChooseValve.invoke(ChooseValve.java:98)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.service.pipeline.impl.valve.LoopValve.invokeBody(LoopValve.java:105)
at com.alibaba.citrus.service.pipeline.impl.valve.LoopValve.invoke(LoopValve.java:83)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.CheckCsrfTokenValve.invoke(CheckCsrfTokenValve.java:123)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.otter.manager.web.webx.valve.AuthContextValve.invoke(AuthContextValve.java:117)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.AnalyzeURLValve.invoke(AnalyzeURLValve.java:126)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.SetLoggingContextValve.invoke(SetLoggingContextValve.java:66)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.turbine.pipeline.valve.PrepareForTurbineValve.invoke(PrepareForTurbineValve.java:52)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
at com.alibaba.citrus.webx.impl.WebxControllerImpl.service(WebxControllerImpl.java:43)
at com.alibaba.citrus.webx.impl.WebxRootControllerImpl.handleRequest(WebxRootControllerImpl.java:53)
at com.alibaba.citrus.webx.support.AbstractWebxRootController.service(AbstractWebxRootController.java:165)
at com.alibaba.citrus.webx.servlet.WebxFrameworkFilter.doFilter(WebxFrameworkFilter.java:152)
at com.alibaba.citrus.webx.servlet.FilterBean.doFilter(FilterBean.java:147)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
at com.alibaba.citrus.webx.servlet.SetLoggingContextFilter.doFilter(SetLoggingContextFilter.java:61)
at com.alibaba.citrus.webx.servlet.FilterBean.doFilter(FilterBean.java:147)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:559)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:365)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:627)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:51)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:662)

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我在进入首页的时候出现该异常，是因为otter会在zookeeper中存储一些节点信息，经过我测试不影响数据同步。

解决方案：

第一种方案：otter会在zookeeper存储一些节点信息，更换zookeeper后，需要复制节点数据，或者删除数据库中的channel、pipeline等表的数据内容

第二种方案：访问 http://域名/system_reduction.htm，点击一键修复

注意：第一种方案不推荐，删除了相当于配置要重新配置，可能会导致掉数据，而且复杂相当于每次程序重启要重新配置，推荐使用第二种方案