Support Questions

Find answers, ask questions, and share your expertise
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
Advanced Search

download file by ambari web hdfs file error

Labels:
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
1,148 Views
0 Kudos
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...

1,020 Views
0 Kudos

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
1,020 Views
0 Kudos

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.

.

1,020 Views
0 Kudos

shicheng
Explorer

Created ‎03-07-2017 09:13 AM

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

707

1,020 Views
0 Kudos
Take a Tour of the Community
Don't have an account?
Register
Your experience may be limited. Sign in to explore more.
Announcements
Product Announcements
[ANNOUNCE] Cloudera ODBC Driver 2.6.16 for Apache Hive Released
Community Announcements
March 2023 Community Highlights
What's New @ Cloudera
Cloudera DataFlow Designer for self-service data flow development is now generally available to all CDP Public Cloud customers
What's New @ Cloudera
Cloudera Operational Database (COD) UI provides the JWT configuration details to connect to your HBase client
What's New @ Cloudera
Cloudera Operational Database (COD) UI allows storage type selection when creating an operational database
View More Announcements