question Re: Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS. in Support Questions

Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS.

rajsyrus — Fri, 01 Sep 2017 17:40:21 GMT

org.apache.ambari.view.utils.hdfs.HdfsApiException: HDFS040 Couldn't open connection to HDFS

org.apache.ambari.view.utils.hdfs.HdfsApiException: HDFS040 Couldn't open connection to HDFS
	at org.apache.ambari.view.utils.hdfs.HdfsUtil.getHdfsApi(HdfsUtil.java:156)
	at org.apache.ambari.view.utils.hdfs.HdfsUtil.connectToHDFSApi(HdfsUtil.java:138)
	at org.apache.ambari.view.hive20.resources.files.FileService.hdfsSmokeTest(FileService.java:238)
	at org.apache.ambari.view.hive20.HelpService.hdfsStatus(HelpService.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 com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
	at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205)
	at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
	at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
	at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
	at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)
	at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
	at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)
	at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
	at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)
	at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
	at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137)
	at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
	at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
	at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
	at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
	at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)
	at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)
	at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
	at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
	at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)
	at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)
	at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1507)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.apache.ambari.server.security.authorization.AmbariAuthorizationFilter.doFilter(AmbariAuthorizationFilter.java:287)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.apache.ambari.server.security.authentication.AmbariDelegatingAuthenticationFilter.doFilter(AmbariDelegatingAuthenticationFilter.java:132)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.apache.ambari.server.security.authorization.AmbariUserAuthorizationFilter.doFilter(AmbariUserAuthorizationFilter.java:91)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478)
	at org.apache.ambari.server.api.MethodOverrideFilter.doFilter(MethodOverrideFilter.java:72)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478)
	at org.apache.ambari.server.api.AmbariPersistFilter.doFilter(AmbariPersistFilter.java:47)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478)
	at org.apache.ambari.server.view.AmbariViewsMDCLoggingFilter.doFilter(AmbariViewsMDCLoggingFilter.java:54)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478)
	at org.apache.ambari.server.view.ViewThrottleFilter.doFilter(ViewThrottleFilter.java:161)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478)
	at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:125)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478)
	at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:125)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478)
	at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82)
	at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:294)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:427)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
	at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:212)
	at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:201)
	at org.apache.ambari.server.controller.AmbariHandlerList.handle(AmbariHandlerList.java:150)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
	at org.eclipse.jetty.server.Server.handle(Server.java:370)
	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)
	at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:973)
	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1035)
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:641)
	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:231)
	at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53)
	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:745)
Caused by: java.io.IOException: No FileSystem for scheme: webhdfs
	at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2644)
	at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2651)
	at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:92)
	at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2687)
	at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2669)
	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:371)
	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:170)
	at org.apache.ambari.view.utils.hdfs.HdfsApi$1.run(HdfsApi.java:74)
	at org.apache.ambari.view.utils.hdfs.HdfsApi$1.run(HdfsApi.java:72)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:422)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
	at org.apache.ambari.view.utils.hdfs.HdfsApi.execute(HdfsApi.java:401)
	at org.apache.ambari.view.utils.hdfs.HdfsApi.<init>(HdfsApi.java:72)
	at org.apache.ambari.view.utils.hdfs.HdfsUtil.getHdfsApi(HdfsUtil.java:150)

Re: Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS.

jsensharma — Mon, 04 Sep 2017 15:13:39 GMT

@Rajendra Manjunath

You are getting the error because of the following Cause:

Caused by: java.io.IOException: No FileSystem for scheme: webhdfs
    at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2644)
    at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2651)
    at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:92)

So please check if you have the following property "dfs.webhdfs.enabled" set to "true" or not in your hdfs-site.xml?

    <property>
      <name>dfs.webhdfs.enabled</name>
      <value>false</value>
      <final>true</final>
    </property>

Also can you please check if the "webhdfs" is working fine at your end or not?

Syntax:

curl  "http://$NAMENODE_HOSTNAME:50070/webhdfs/v1/user?op=LISTSTATUS"

Example:

curl  "http://erie1.example.com:50070/webhdfs/v1/user?op=LISTSTATUS"

Also please let us know which version of ambari are you using.

Re: Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS.

Shelton — Mon, 04 Sep 2017 15:31:53 GMT

@Rajendra Manjunath

Can you give details of the cluster like

HDP version ?

Kerberized or NOT?

Sandbox or bare metal?

Can you assure that HDFS is started in Ambari UI and

HDFS -->Configs-->Advanced -->WebHDFS

enabled

What values do you have

HDFS -->Configs-->Advanced --> Advanced core-site

 fs.defaultFS

What values do you have for the below it should be *

HDFS -->Configs-->Advanced -->Custom core-site

hadoop.proxyuser.hdfs.groups
hadoop.proxyuser.hdfs.hosts

What values do you have in

HDFS -->Configs-->Advanced --> Custom core-site and filter hadoop.proxyuser.ambari-server

hadoop.proxyuser.ambari-server-xxxx.groups 
hadoop.proxyuser.ambari-server-xxxx.hosts

Please let me know

Re: Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS.

rajsyrus — Mon, 04 Sep 2017 20:38:04 GMT

Hadoop version :

Hadoop 2.7.3.2.5.3.0-37

Subversion git@github.com:hortonworks/hadoop.git -r 9828acfdec41a121f0121f556b09e2d112259e92

Compiled by jenkins on 2016-11-29T18:06Z

Compiled with protoc 2.5.0

From source with checksum a6c8c64bfe734b01a46c7c480ebc7ff

This command was run using /usr/hdp/2.5.3.0-37/hadoop/hadoop-common-2.7.3.2.5.3.0-37.jar

Non Kerberized

Non HA

fs.defaultFS :

hdfs://<<Hostname>>:8020

hadoop.proxyuser.hdfs.groups:

hadoop.proxyuser.hdfs.hosts:

hadoop.proxyuser.ambari-server.groups:

hadoop.proxyuser.ambari-server.hosts:

Re: Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS.

rajsyrus — Mon, 04 Sep 2017 20:41:53 GMT

@Jay SenSharma

Thanks for you support..!!

dfs.webhdfs.enabled is enabled to true

Re: Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS.

Shelton — Mon, 04 Sep 2017 21:06:43 GMT

@Rajendra Manjunath

Can you chnage this value

hadoop.proxyuser.ambari-server.hosts={Ambari-server FQDN}

If this is not a production cluster can you Stop All and Start All

Re: Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS.

rajsyrus — Tue, 05 Sep 2017 15:20:33 GMT

I tried, but didnt work.

Re: Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS.

rajsyrus — Tue, 05 Sep 2017 16:35:50 GMT

Ambari Log:

05 Sep 2017 05:29:38,359 INFO [ambari-client-thread-32] ConfigurationBuilder:127 - HdfsApi configured to connect to defaultFS='webhdfs://<<hostname>>:50070' 05 Sep 2017 05:29:38,363 ERROR [ambari-client-thread-32] HdfsUtil:153 - exception occurred while creating hdfsApi objcet : No FileSystem for scheme: webhdfs java.io.IOException: No FileSystem for scheme: webhdfs at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2644) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2651) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:92) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2687) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2669) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:371) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:170) at org.apache.ambari.view.utils.hdfs.HdfsApi$1.run(HdfsApi.java:74) at org.apache.ambari.view.utils.hdfs.HdfsApi$1.run(HdfsApi.java:72) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657) at org.apache.ambari.view.utils.hdfs.HdfsApi.execute(HdfsApi.java:401) at org.apache.ambari.view.utils.hdfs.HdfsApi.<init>(HdfsApi.java:72) at org.apache.ambari.view.utils.hdfs.HdfsUtil.getHdfsApi(HdfsUtil.java:150) at org.apache.ambari.view.utils.hdfs.HdfsUtil.connectToHDFSApi(HdfsUtil.java:122) at org.apache.ambari.view.commons.hdfs.HdfsService.getApi(HdfsService.java:98) at org.apache.ambari.view.commons.hdfs.UserService.trashdir(UserService.java:104) 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 com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205)

Re: Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS.

rajsyrus — Mon, 11 Sep 2017 20:07:28 GMT

Finally it worked...!!

/var/lib/ambari-server/resources/views/work

had to remove this and restart ambari-server

Re: Views on Ambari not working , reporting HDFS040 Couldn't open connection to HDFS.

erkansirin78 — Sat, 19 May 2018 22:54:02 GMT

I tried this

/var/lib/ambari-server/resources/views/work

Bu I lost heartbeat of services