Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-3921

NN will prematurely consider blocks missing when entering active state while still in safe mode

VotersWatch issueWatchersCreate sub-taskLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.2-alpha
    • Fix Version/s: 2.0.3-alpha
    • Component/s: None
    • Labels:
      None

      Description

      I shut down all the HDFS daemons in an Highly Available (automatic failover) cluster.

      Then I started one NN and it transitioned it to active. No DNs were started, and I saw the red warning link on the NN web UI:
      WARNING : There are 36 missing blocks. Please check the logs or run fsck in order to identify the missing blocks.

      I clicked this to go to the corrupt_files.jsp page, which ran into the following error:

      HTTP ERROR 500
      
      Problem accessing /corrupt_files.jsp. Reason:
      
          Cannot run listCorruptFileBlocks because replication queues have not been initialized.
      Caused by:
      
      java.io.IOException: Cannot run listCorruptFileBlocks because replication queues have not been initialized.
      	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.listCorruptFileBlocks(FSNamesystem.java:5035)
      	at org.apache.hadoop.hdfs.server.namenode.corrupt_005ffiles_jsp._jspService(corrupt_005ffiles_jsp.java:78)
      	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:1039)
      	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)
      

        Attachments

        1. HDFS-3921.patch
          3 kB
          Aaron Myers
        2. HDFS-3921.patch
          3 kB
          Aaron Myers

          Activity

            People

            • Assignee:
              atm Aaron Myers
              Reporter:
              schu Stephen Chu

              Dates

              • Created:
                Updated:
                Resolved:

                Issue deployment