hbase-server/src/test/java/org/apache/hadoop/hbase/util/MultiThreadedReaderWithACL.java

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one or more
   3  * contributor license agreements. See the NOTICE file distributed with this
   4  * work for additional information regarding copyright ownership. The ASF
   5  * licenses this file to you under the Apache License, Version 2.0 (the
   6  * "License"); you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  * http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  13  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  14  * License for the specific language governing permissions and limitations
  15  * under the License.
  16  */
  17 package org.apache.hadoop.hbase.util;
  18
  19 import java.io.IOException;
  20 import java.security.PrivilegedExceptionAction;
  21 import java.util.HashMap;
  22 import java.util.Map;
  23
  24 import org.apache.commons.logging.Log;
  25 import org.apache.commons.logging.LogFactory;
  26 import org.apache.hadoop.conf.Configuration;
  27 import org.apache.hadoop.hbase.TableName;
  28 import org.apache.hadoop.hbase.client.Get;
  29 import org.apache.hadoop.hbase.client.Result;
  30 import org.apache.hadoop.hbase.client.Table;
  31 import org.apache.hadoop.hbase.security.User;
  32 import org.apache.hadoop.hbase.util.test.LoadTestDataGenerator;
  33 import org.apache.hadoop.security.UserGroupInformation;
  34
  35 /**
  36  * A MultiThreadReader that helps to work with ACL
  37  */
  38 public class MultiThreadedReaderWithACL extends MultiThreadedReader {
  39   private static final Log LOG = LogFactory.getLog(MultiThreadedReaderWithACL.class);
  40
  41   private static final String COMMA = ",";
  42   /**
  43    * Maps user with Table instance. Because the table instance has to be created
  44    * per user inorder to work in that user's context
  45    */
  46   private Map<String, Table> userVsTable = new HashMap<>();
  47   private Map<String, User> users = new HashMap<>();
  48   private String[] userNames;
  49
  50   public MultiThreadedReaderWithACL(LoadTestDataGenerator dataGen, Configuration conf,
  51       TableName tableName, double verifyPercent, String userNames) throws IOException {
  52     super(dataGen, conf, tableName, verifyPercent);
  53     this.userNames = userNames.split(COMMA);
  54   }
  55
  56   @Override
  57   protected void addReaderThreads(int numThreads) throws IOException {
  58     for (int i = 0; i < numThreads; ++i) {
  59       HBaseReaderThread reader = new HBaseReaderThreadWithACL(i);
  60       readers.add(reader);
  61     }
  62   }
  63
  64   public class HBaseReaderThreadWithACL extends HBaseReaderThread {
  65
  66     public HBaseReaderThreadWithACL(int readerId) throws IOException {
  67       super(readerId);
  68     }
  69
  70     @Override
  71     protected Table createTable() throws IOException {
  72       return null;
  73     }
  74
  75     @Override
  76     protected void closeTable() {
  77       for (Table table : userVsTable.values()) {
  78         try {
  79           table.close();
  80         } catch (Exception e) {
  81           LOG.error("Error while closing the table " + table.getName(), e);
  82         }
  83       }
  84     }
  85
  86     @Override
  87     public void queryKey(final Get get, final boolean verify, final long keyToRead)
  88         throws IOException {
  89       final String rowKey = Bytes.toString(get.getRow());
  90
  91       // read the data
  92       final long start = System.nanoTime();
  93       PrivilegedExceptionAction<Object> action = new PrivilegedExceptionAction<Object>() {
  94         @Override
  95         public Object run() throws Exception {
  96           Table localTable = null;
  97           try {
  98             Result result = null;
  99             int specialPermCellInsertionFactor = Integer.parseInt(dataGenerator.getArgs()[2]);
 100             int mod = ((int) keyToRead % userNames.length);
 101             if (userVsTable.get(userNames[mod]) == null) {
 102               localTable = connection.getTable(tableName);
 103               userVsTable.put(userNames[mod], localTable);
 104               result = localTable.get(get);
 105             } else {
 106               localTable = userVsTable.get(userNames[mod]);
 107               result = localTable.get(get);
 108             }
 109             boolean isNullExpected = ((((int) keyToRead % specialPermCellInsertionFactor)) == 0);
 110             long end = System.nanoTime();
 111             verifyResultsAndUpdateMetrics(verify, get, end - start, result, localTable, isNullExpected);
 112           } catch (IOException e) {
 113             recordFailure(keyToRead);
 114           }
 115           return null;
 116         }
 117       };
 118       if (userNames != null && userNames.length > 0) {
 119         int mod = ((int) keyToRead % userNames.length);
 120         User user;
 121         UserGroupInformation realUserUgi;
 122         if(!users.containsKey(userNames[mod])) {
 123           if(User.isHBaseSecurityEnabled(conf)) {
 124             realUserUgi = LoadTestTool.loginAndReturnUGI(conf, userNames[mod]);
 125           } else {
 126             realUserUgi = UserGroupInformation.createRemoteUser(userNames[mod]);
 127           }
 128           user = User.create(realUserUgi);
 129           users.put(userNames[mod], user);
 130         } else {
 131           user = users.get(userNames[mod]);
 132         }
 133         try {
 134           user.runAs(action);
 135         } catch (Exception e) {
 136           recordFailure(keyToRead);
 137         }
 138       }
 139     }
 140
 141     private void recordFailure(final long keyToRead) {
 142       numReadFailures.addAndGet(1);
 143       LOG.debug("[" + readerId + "] FAILED read, key = " + (keyToRead + "") + ", "
 144           + "time from start: " + (System.currentTimeMillis() - startTimeMs) + " ms");
 145     }
 146   }
 147
 148 }