| <?xml version="1.0" encoding="UTF-8"?><%! |
| /* |
| * 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. |
| */ |
| |
| /* |
| |
| This script outputs information about a block (as XML). The script accepts a |
| GET parameter named blockId which should be block id (as a long). |
| |
| Example output is below (the blockId was 8888705098093096373): |
| <block_info> |
| <block_id>8888705098093096373</block_id> |
| <block_name>blk_8888705098093096373</block_name> |
| <file> |
| <local_name>some_file_name</local_name> |
| <local_directory>/input/</local_directory> |
| <user_name>user_name</user_name> |
| <group_name>supergroup</group_name> |
| <is_directory>false</is_directory> |
| <access_time>1251166313680</access_time> |
| <is_under_construction>false</is_under_construction> |
| <ds_quota>-1</ds_quota> |
| <permission_status>user_name:supergroup:rw-r--r--</permission_status> |
| <replication>1</replication> |
| <disk_space_consumed>2815</disk_space_consumed> |
| <preferred_block_size>67108864</preferred_block_size> |
| </file> |
| <replicas> |
| <replica> |
| <host_name>hostname</host_name> |
| <is_corrupt>false</is_corrupt> |
| </replica> |
| </replicas> |
| </block_info> |
| |
| Notes: |
| - block_info/file will only exist if the file can be found |
| - block_info/replicas can contain 0 or more children |
| - If an error exists, block_info/error will exist and contain a human |
| readable error message |
| |
| */ |
| |
| %> |
| <%@ page |
| contentType="application/xml" |
| import="java.io.IOException" |
| import="java.util.Iterator" |
| import="org.apache.hadoop.conf.Configuration" |
| import="org.apache.hadoop.hdfs.protocol.Block" |
| import="org.apache.hadoop.hdfs.server.namenode.INode" |
| import="org.apache.hadoop.hdfs.server.namenode.BlocksMap" |
| import="org.apache.hadoop.hdfs.server.namenode.BlockInfo" |
| import="org.apache.hadoop.hdfs.server.namenode.DatanodeDescriptor" |
| import="org.apache.hadoop.hdfs.server.namenode.NamenodeJspHelper.XMLBlockInfo" |
| import="org.apache.hadoop.hdfs.server.common.JspHelper" |
| import="org.apache.hadoop.util.ServletUtil" |
| import="org.znerd.xmlenc.*" |
| |
| %> |
| <%! |
| //for java.io.Serializable |
| private static final long serialVersionUID = 1L; |
| %> |
| <% |
| NameNode nn = (NameNode)application.getAttribute("name.node"); |
| String namenodeRole = nn.getRole().toString(); |
| FSNamesystem fsn = nn.getNamesystem(); |
| |
| Long blockId = null; |
| try { |
| blockId = JspHelper.validateLong(request.getParameter("blockId")); |
| } catch(NumberFormatException e) { |
| blockId = null; |
| } |
| |
| |
| XMLBlockInfo bi = new XMLBlockInfo(fsn, blockId); |
| XMLOutputter doc = new XMLOutputter(out, "UTF-8"); |
| bi.toXML(doc); |
| |
| %> |