Uploaded image for project: 'IMPALA'
  1. IMPALA
  2. IMPALA-609

Impala should provide a more accurate error message when region server is unhealthy - fails with NoClassDefFoundError

Attach filesAttach ScreenshotVotersWatch issueWatchersCreate sub-taskLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Resolved
    • Minor
    • Resolution: Cannot Reproduce
    • Impala 1.1
    • None
    • Frontend
    • CentOS release 6.4 (Final)
      CDH: CDH 4.4.0-1.cdh4.4.0.p0.39
      JDK: java version "1.7.0_21"

    Description

      When running query in Impala (Command line) "select name from product where manufacturername = "Cat's Pride" limit 1;", Impala returns error message: "org.apache.hadoop.ipc.RemoteException(java.lang.NoClassDefFoundError): IPC server unable to read call parameters: Could not initialize class org.apache.hadoop.hbase.util.Classes"

      Note:
      1. Basic "select * from table_name limit 1;" works in both command line and Hue Impala UI.
      2. We used CM to install Impala, "All Services" -> "Actions" -> "Add a Service" -> Then choose Impala for the initial installation then updated through "Parcels" interface.
      3. The same query works in hive.

      Cause:
      One of the "region server" couldn't talk to the Hbase master, there are also error messages in Hbase log file on the problematic node. The error message I caught from Hbase log is:
      =================================
      WARN org.apache.hadoop.ipc.HBaseServer: Unable to read call parameters for client 10.6.70.3.
      =================================

      10.6.70.3 is the Hbase master's IP address.

      Impala should have failed with a better error message than "NoClassDefFoundError".

      Impala log:
      http://paste.ubuntu.com/6179531/

      Hbase unhealthy canary report log:
      http://paste.ubuntu.com/6179569/

      Attachments

        Activity

          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            Unassigned Unassigned
            lazyadmin Tony Xu
            Votes:
            0 Vote for this issue
            Watchers:
            0 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Issue deployment