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https://issues.apache.org/jira/browse/HDFS-2845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13194145#comment-13194145
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Aaron T. Myers commented on HDFS-2845:
--------------------------------------
Hi Bikas, it looks to me like the SBN doesn't currently allow browsing via the
web UI. If I try, I get this error:
{noformat}
HTTP ERROR 500
Problem accessing /nn_browsedfscontent.jsp. Reason:
Operation category WRITE is not supported in state standby
Caused by:
org.apache.hadoop.ipc.StandbyException: Operation category WRITE is not
supported in state standby
at
org.apache.hadoop.hdfs.server.namenode.ha.StandbyState.checkOperation(StandbyState.java:86)
at
org.apache.hadoop.hdfs.server.namenode.NameNode$NameNodeHAContext.checkOperation(NameNode.java:994)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkOperation(FSNamesystem.java:629)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getDelegationToken(FSNamesystem.java:4544)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getDelegationToken(NameNodeRpcServer.java:381)
at
org.apache.hadoop.hdfs.server.namenode.NamenodeJspHelper$1.run(NamenodeJspHelper.java:364)
at
org.apache.hadoop.hdfs.server.namenode.NamenodeJspHelper$1.run(NamenodeJspHelper.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1167)
at
org.apache.hadoop.hdfs.server.namenode.NamenodeJspHelper.getDelegationToken(NamenodeJspHelper.java:361)
at
org.apache.hadoop.hdfs.server.namenode.NamenodeJspHelper.redirectToRandomDataNode(NamenodeJspHelper.java:391)
at
org.apache.hadoop.hdfs.server.namenode.nn_005fbrowsedfscontent_jsp._jspService(nn_005fbrowsedfscontent_jsp.java:70)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
at
org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:109)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
at
org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:988)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
{noformat}
> SBN should not allow browsing of the file system via web UI
> -----------------------------------------------------------
>
> Key: HDFS-2845
> URL: https://issues.apache.org/jira/browse/HDFS-2845
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Bikas Saha
> Assignee: Bikas Saha
>
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