Package org.apache.hadoop.conf

Class ReconfigurationServlet

java.lang.Object
javax.servlet.GenericServlet
javax.servlet.http.HttpServlet
org.apache.hadoop.conf.ReconfigurationServlet
All Implemented Interfaces:
Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig
public class ReconfigurationServlet extends javax.servlet.http.HttpServlet
A servlet for changing a node's configuration. Reloads the configuration file, verifies whether changes are possible and asks the admin to approve the change.
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final String
    CONF_SERVLET_RECONFIGURABLE_PREFIX
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    ReconfigurationServlet()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected void
    doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
     
    protected void
    doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
     
    void
    init()
     

    Methods inherited from class javax.servlet.http.HttpServlet

    doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service

    Methods inherited from class javax.servlet.GenericServlet

    destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

  • Constructor Details

    • ReconfigurationServlet

      public ReconfigurationServlet()

  • Method Details

    • init

      public void init() throws javax.servlet.ServletException
      Overrides:
      init in class javax.servlet.GenericServlet
      Throws:
      javax.servlet.ServletException

    • doGet

      protected void doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp) throws javax.servlet.ServletException, IOException
      Overrides:
      doGet in class javax.servlet.http.HttpServlet
      Throws:
      javax.servlet.ServletException
      IOException

    • doPost

      protected void doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp) throws javax.servlet.ServletException, IOException
      Overrides:
      doPost in class javax.servlet.http.HttpServlet
      Throws:
      javax.servlet.ServletException
      IOException