hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRowTooBig.java

   1 /**
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.regionserver;
  19
  20 import java.io.IOException;
  21 import org.apache.hadoop.fs.Path;
  22 import org.apache.hadoop.hbase.HBaseClassTestRule;
  23 import org.apache.hadoop.hbase.HBaseTestingUtility;
  24 import org.apache.hadoop.hbase.HConstants;
  25 import org.apache.hadoop.hbase.HRegionInfo;
  26 import org.apache.hadoop.hbase.TableName;
  27 import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
  28 import org.apache.hadoop.hbase.client.Get;
  29 import org.apache.hadoop.hbase.client.Put;
  30 import org.apache.hadoop.hbase.client.RowTooBigException;
  31 import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
  32 import org.apache.hadoop.hbase.testclassification.MediumTests;
  33 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
  34 import org.apache.hadoop.hbase.util.Bytes;
  35 import org.junit.AfterClass;
  36 import org.junit.BeforeClass;
  37 import org.junit.ClassRule;
  38 import org.junit.Test;
  39 import org.junit.experimental.categories.Category;
  40
  41 /**
  42  * Test case to check HRS throws {@link org.apache.hadoop.hbase.client.RowTooBigException}
  43  * when row size exceeds configured limits.
  44  */
  45 @Category({RegionServerTests.class, MediumTests.class})
  46 public class TestRowTooBig {
  47
  48   @ClassRule
  49   public static final HBaseClassTestRule CLASS_RULE =
  50       HBaseClassTestRule.forClass(TestRowTooBig.class);
  51
  52   private final static HBaseTestingUtility HTU = new HBaseTestingUtility();
  53   private static Path rootRegionDir;
  54   private static final TableDescriptorBuilder.ModifyableTableDescriptor TEST_TD =
  55     new TableDescriptorBuilder.ModifyableTableDescriptor(
  56       TableName.valueOf(TestRowTooBig.class.getSimpleName()));
  57
  58   @BeforeClass
  59   public static void before() throws Exception {
  60     HTU.startMiniCluster();
  61     HTU.getConfiguration().setLong(HConstants.TABLE_MAX_ROWSIZE_KEY,
  62       10 * 1024 * 1024L);
  63     rootRegionDir = HTU.getDataTestDirOnTestFS("TestRowTooBig");
  64   }
  65
  66   @AfterClass
  67   public static void after() throws Exception {
  68     HTU.shutdownMiniCluster();
  69   }
  70
  71   /**
  72    * Usecase:
  73    *  - create a row with 5 large  cells (5 Mb each)
  74    *  - flush memstore but don't compact storefiles.
  75    *  - try to Get whole row.
  76    *
  77    * OOME happened before we actually get to reading results, but
  78    * during seeking, as each StoreFile gets it's own scanner,
  79    * and each scanner seeks after the first KV.
  80    * @throws IOException
  81    */
  82   @Test(expected = RowTooBigException.class)
  83   public void testScannersSeekOnFewLargeCells() throws IOException {
  84     byte[] row1 = Bytes.toBytes("row1");
  85     byte[] fam1 = Bytes.toBytes("fam1");
  86
  87     TableDescriptorBuilder.ModifyableTableDescriptor tableDescriptor = TEST_TD;
  88     ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor familyDescriptor =
  89       new ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor(fam1);
  90     if (tableDescriptor.hasColumnFamily(familyDescriptor.getName())) {
  91       tableDescriptor.modifyColumnFamily(familyDescriptor);
  92     } else {
  93       tableDescriptor.setColumnFamily(familyDescriptor);
  94     }
  95
  96     final HRegionInfo hri =
  97       new HRegionInfo(tableDescriptor.getTableName(), HConstants.EMPTY_END_ROW,
  98         HConstants.EMPTY_END_ROW);
  99     HRegion region = HBaseTestingUtility.createRegionAndWAL(hri,
 100       rootRegionDir, HTU.getConfiguration(), tableDescriptor);
 101     try {
 102       // Add 5 cells to memstore
 103       for (int i = 0; i < 5 ; i++) {
 104         Put put = new Put(row1);
 105
 106         byte[] value = new byte[5 * 1024 * 1024];
 107         put.addColumn(fam1, Bytes.toBytes("col_" + i), value);
 108         region.put(put);
 109         region.flush(true);
 110       }
 111
 112       Get get = new Get(row1);
 113       region.get(get);
 114     } finally {
 115       HBaseTestingUtility.closeRegionAndWAL(region);
 116     }
 117   }
 118
 119   /**
 120    * Usecase:
 121    *
 122    *  - create a row with 1M cells, 10 bytes in each
 123    *  - flush & run major compaction
 124    *  - try to Get whole row.
 125    *
 126    *  OOME happened in StoreScanner.next(..).
 127    *
 128    * @throws IOException
 129    */
 130   @Test(expected = RowTooBigException.class)
 131   public void testScanAcrossManySmallColumns() throws IOException {
 132     byte[] row1 = Bytes.toBytes("row1");
 133     byte[] fam1 = Bytes.toBytes("fam1");
 134
 135     TableDescriptorBuilder.ModifyableTableDescriptor tableDescriptor = TEST_TD;
 136     ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor hcd =
 137       new ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor(fam1);
 138     if (tableDescriptor.hasColumnFamily(hcd.getName())) {
 139       tableDescriptor.modifyColumnFamily(hcd);
 140     } else {
 141       tableDescriptor.setColumnFamily(hcd);
 142     }
 143
 144     final HRegionInfo hri =
 145       new HRegionInfo(tableDescriptor.getTableName(), HConstants.EMPTY_END_ROW,
 146         HConstants.EMPTY_END_ROW);
 147     HRegion region = HBaseTestingUtility.createRegionAndWAL(hri,
 148       rootRegionDir, HTU.getConfiguration(), tableDescriptor);
 149     try {
 150       // Add to memstore
 151       for (int i = 0; i < 10; i++) {
 152         Put put = new Put(row1);
 153         for (int j = 0; j < 10 * 10000; j++) {
 154           byte[] value = new byte[10];
 155           put.addColumn(fam1, Bytes.toBytes("col_" + i + "_" + j), value);
 156         }
 157         region.put(put);
 158         region.flush(true);
 159       }
 160       region.compact(true);
 161
 162       Get get = new Get(row1);
 163       region.get(get);
 164     } finally {
 165       HBaseTestingUtility.closeRegionAndWAL(region);
 166     }
 167   }
 168 }