FsckServlet.java
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上传日期:2018-01-08
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- /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- package org.apache.hadoop.hdfs.server.namenode;
- import java.util.*;
- import java.io.*;
- import org.apache.hadoop.conf.*;
- import org.apache.commons.logging.*;
- import javax.servlet.ServletContext;
- import javax.servlet.ServletException;
- import javax.servlet.http.HttpServlet;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- /**
- * This class is used in Namesystem's jetty to do fsck on namenode.
- */
- public class FsckServlet extends HttpServlet {
- @SuppressWarnings("unchecked")
- public void doGet(HttpServletRequest request,
- HttpServletResponse response
- ) throws ServletException, IOException {
- Map<String,String[]> pmap = request.getParameterMap();
- ServletContext context = getServletContext();
- NameNode nn = (NameNode) context.getAttribute("name.node");
- Configuration conf = (Configuration) context.getAttribute("name.conf");
- NamenodeFsck fscker = new NamenodeFsck(conf, nn, pmap, response);
- fscker.fsck();
- }
- }