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download file by ambari web hdfs file error

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shicheng
Explorer

Created ‎03-07-2017 07:36 AM

i'm download hdfs file by ambari web file view :

HdfsApi connection failed.Check"webhdfs.url" property

ambari server Feign death

With that host not found. But I have been configured in the /etc/hosts file under the name clause

ERROR:

INFO [qtp-ambari-client-12617] RetryInvocationHandler:144 - Exception while invoking getFileInfo of class ClientNamenodeProtocolTranslatorPB over Prod-Hdp-NN-2/10.25.159.107:8020 after 14 fail over attempts. Trying to fail over immediately.
java.io.IOException: Failed on local exception: java.net.SocketException: Too many open files; Host Details : local host is: "java.net.UnknownHostException: Prod-Hdp-NN-2: Prod-Hdp-NN-2: unknown error"; destination host is: "Prod-Hdp-NN-2":8020;
	at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:773)
	at org.apache.hadoop.ipc.Client.call(Client.java:1431)
	at org.apache.hadoop.ipc.Client.call(Client.java:1358)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
	at com.sun.proxy.$Proxy133.getFileInfo(Unknown Source)
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:771)
	at sun.reflect.GeneratedMethodAccessor212.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:252)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:104)
	at com.sun.proxy.$Proxy134.getFileInfo(Unknown Source)
	at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:2116)
	at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1315)
	at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1311)
	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
	at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1311)
	at org.apache.ambari.view.utils.hdfs.HdfsApi$3.run(HdfsApi.java:127)
	at org.apache.ambari.view.utils.hdfs.HdfsApi$3.run(HdfsApi.java:125)
	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:397)
	at org.apache.ambari.view.utils.hdfs.HdfsApi.getFileStatus(HdfsApi.java:125)
	at org.apache.ambari.view.filebrowser.DownloadService$1.write(DownloadService.java:191)
	at com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:71)
	at com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:57)
	at com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:302)
	at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1510)
	at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
	at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
	at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)
	at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:540)
	at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:715)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1496)
	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.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$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.apache.ambari.server.security.authorization.AmbariAuthorizationFilter.doFilter(AmbariAuthorizationFilter.java:196)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
	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$CachedChain.doFilter(ServletHandler.java:1467)
	at org.apache.ambari.server.api.MethodOverrideFilter.doFilter(MethodOverrideFilter.java:72)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467)
	at org.apache.ambari.server.api.AmbariPersistFilter.doFilter(AmbariPersistFilter.java:47)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467)
	at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:109)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467)
	at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:109)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467)
	at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82)
	at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:294)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501)
	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:429)
	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:216)
	at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:205)
	at org.apache.ambari.server.controller.AmbariHandlerList.handle(AmbariHandlerList.java:152)
	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:971)
	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1033)
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644)
	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: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$3.run(QueuedThreadPool.java:543)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.SocketException: Too many open files
	at sun.nio.ch.Net.socket0(Native Method)
	at sun.nio.ch.Net.socket(Net.java:411)
	at sun.nio.ch.Net.socket(Net.java:404)
	at sun.nio.ch.SocketChannelImpl.<init>(SocketChannelImpl.java:105)
	at sun.nio.ch.SelectorProviderImpl.openSocketChannel(SelectorProviderImpl.java:60)
	at java.nio.channels.SocketChannel.open(SocketChannel.java:145)
	at org.apache.hadoop.net.StandardSocketFactory.createSocket(StandardSocketFactory.java:62)
	at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:587)
	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:710)
	at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:373)
	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1493)
	at org.apache.hadoop.ipc.Client.call(Client.java:1397)
	... 96 more
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4 REPLIES 4

jsensharma
Super Mentor

Created ‎03-07-2017 07:45 AM

@shi cheng

The entry should be there in all your Hosts (/etc/hosts) file.

10.25.159.107    Prod-Hdp-NN-2

.

Also please check What is the value defined for "fs.defaultFS" (is it having correct hostname there) and if that host and port are opened?

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

.

Also what is the value for the following settings:

# ulimit -a 
# grep 'open files' /proc/<AmbariServer_PID>/limits

# grep 'open files' /proc/<NameNode_PID>/limits

.

Some ulimit recommendations:

https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.0/bk_installing_manually_book/content/ref-729...

1,021 Views
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shicheng
Explorer

Created ‎03-07-2017 08:03 AM

Hadoop is HA cluster config is:

hdfs://hdp

ulimit -a:

core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 256990
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 65535
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) 256990
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited


grep 'open files' /proc/<AmbariServer_PID>/limits
Max open files            10000                10000                files

grep 'open files' /proc/<NameNode_PID>/limits
Max open files            128000               128000               files
1,021 Views
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jsensharma
Super Mentor

Created ‎03-07-2017 08:53 AM

@shi cheng

Looks like your NameNode is causing the "too many open files" issue.

In order to troubleshoot what is consuming that much file descriptors we can try looking at the output of the following command to findout what is causing it.

lsof  -p  <NameNode_PID>

lsof  -p  <NameNode_PID> | wc -l

.

For a quick workaround, we might want to try restarting the NameNode on that host.

.

1,021 Views
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shicheng
Explorer

Created ‎03-07-2017 09:13 AM

[root@Prod-Hdp-NN-2 ambari-server]# lsof -p 9526 | wc -l

707

1,021 Views
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