| <?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 corrupt replicas on the system (as XML). |
| |
| The script takes two GET parameters: |
| - numCorruptBlocks The number of corrupt blocks to return. Must be >= 0 && |
| <= 100. Defaults to 10. |
| - startingBlockId The block id (as a long) from which to begin iterating. |
| Output does not include the starting block id (it begins at the following |
| block id). If not given, iteration starts from beginning. |
| |
| Example output is below: |
| <corrupt_block_info> |
| <dfs_replication>1</dfs_replication> |
| <num_missing_blocks>1</num_missing_blocks> |
| <num_corrupt_replica_blocks>1</num_corrupt_replica_blocks> |
| <corrupt_replica_block_ids> |
| <block_id>-2207002825050436217</block_id> |
| </corrupt_replica_block_ids> |
| </corrupt_block_info> |
| |
| Notes: |
| - corrupt_block_info/corrupt_replica_block_ids will 0 to numCorruptBlocks |
| children |
| - If an error exists, corrupt_block_info/error will exist and |
| contain a human readable error message |
| |
| */ |
| |
| %> |
| <%@ page |
| contentType="application/xml" |
| import="java.io.IOException" |
| import="java.util.List" |
| import="org.apache.hadoop.conf.Configuration" |
| import="org.apache.hadoop.hdfs.server.common.JspHelper" |
| import="org.apache.hadoop.hdfs.server.namenode.NamenodeJspHelper.XMLCorruptBlockInfo" |
| import="org.apache.hadoop.util.ServletUtil" |
| import="org.znerd.xmlenc.*" |
| %> |
| <%! |
| private static final long serialVersionUID = 1L; |
| %> |
| <% |
| |
| NameNode nn = (NameNode)application.getAttribute("name.node"); |
| FSNamesystem fsn = nn.getNamesystem(); |
| |
| Integer numCorruptBlocks = 10; |
| try { |
| Long l = JspHelper.validateLong(request.getParameter("numCorruptBlocks")); |
| if (l != null) { |
| numCorruptBlocks = l.intValue(); |
| } |
| } catch(NumberFormatException e) { |
| |
| } |
| |
| Long startingBlockId = null; |
| try { |
| startingBlockId = |
| JspHelper.validateLong(request.getParameter("startingBlockId")); |
| } catch(NumberFormatException e) { |
| } |
| |
| XMLCorruptBlockInfo cbi = new XMLCorruptBlockInfo(fsn, |
| new Configuration(), |
| numCorruptBlocks, |
| startingBlockId); |
| XMLOutputter doc = new XMLOutputter(out, "UTF-8"); |
| cbi.toXML(doc); |
| %> |