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.HBaseTestingUtil;
  24 import org.apache.hadoop.hbase.HConstants;
  25 import org.apache.hadoop.hbase.TableName;
  26 import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
  27 import org.apache.hadoop.hbase.client.Get;
  28 import org.apache.hadoop.hbase.client.Put;
  29 import org.apache.hadoop.hbase.client.RegionInfo;
  30 import org.apache.hadoop.hbase.client.RegionInfoBuilder;
  31 import org.apache.hadoop.hbase.client.RowTooBigException;
  32 import org.apache.hadoop.hbase.client.TableDescriptor;
  33 import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
  34 import org.apache.hadoop.hbase.testclassification.MediumTests;
  35 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
  36 import org.apache.hadoop.hbase.util.Bytes;
  37 import org.junit.AfterClass;
  38 import org.junit.BeforeClass;
  39 import org.junit.ClassRule;
  40 import org.junit.Test;
  41 import org.junit.experimental.categories.Category;
  42
  43 /**
  44  * Test case to check HRS throws {@link org.apache.hadoop.hbase.client.RowTooBigException}
  45  * when row size exceeds configured limits.
  46  */
  47 @Category({RegionServerTests.class, MediumTests.class})
  48 public class TestRowTooBig {
  49
  50   @ClassRule
  51   public static final HBaseClassTestRule CLASS_RULE =
  52       HBaseClassTestRule.forClass(TestRowTooBig.class);
  53
  54   private final static HBaseTestingUtil HTU = new HBaseTestingUtil();
  55   private static Path rootRegionDir;
  56   private static final TableDescriptor TEST_TD = TableDescriptorBuilder
  57     .newBuilder(TableName.valueOf(TestRowTooBig.class.getSimpleName())).build();
  58
  59   @BeforeClass
  60   public static void before() throws Exception {
  61     HTU.startMiniCluster();
  62     HTU.getConfiguration().setLong(HConstants.TABLE_MAX_ROWSIZE_KEY,
  63       10 * 1024 * 1024L);
  64     rootRegionDir = HTU.getDataTestDirOnTestFS("TestRowTooBig");
  65   }
  66
  67   @AfterClass
  68   public static void after() throws Exception {
  69     HTU.shutdownMiniCluster();
  70   }
  71
  72   /**
  73    * Usecase:
  74    *  - create a row with 5 large  cells (5 Mb each)
  75    *  - flush memstore but don't compact storefiles.
  76    *  - try to Get whole row.
  77    *
  78    * OOME happened before we actually get to reading results, but
  79    * during seeking, as each StoreFile gets it's own scanner,
  80    * and each scanner seeks after the first KV.
  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     TableDescriptor tableDescriptor = TableDescriptorBuilder.newBuilder(TEST_TD)
  88       .setColumnFamily(ColumnFamilyDescriptorBuilder.of(fam1)).build();
  89
  90     final RegionInfo hri = RegionInfoBuilder.newBuilder(tableDescriptor.getTableName()).build();
  91     HRegion region = HBaseTestingUtil.createRegionAndWAL(hri, rootRegionDir,
  92       HTU.getConfiguration(), tableDescriptor);
  93     try {
  94       // Add 5 cells to memstore
  95       for (int i = 0; i < 5 ; i++) {
  96         Put put = new Put(row1);
  97
  98         byte[] value = new byte[5 * 1024 * 1024];
  99         put.addColumn(fam1, Bytes.toBytes("col_" + i), value);
 100         region.put(put);
 101         region.flush(true);
 102       }
 103
 104       Get get = new Get(row1);
 105       region.get(get);
 106     } finally {
 107       HBaseTestingUtil.closeRegionAndWAL(region);
 108     }
 109   }
 110
 111   /**
 112    * Usecase:
 113    *
 114    *  - create a row with 1M cells, 10 bytes in each
 115    *  - flush & run major compaction
 116    *  - try to Get whole row.
 117    *
 118    *  OOME happened in StoreScanner.next(..).
 119    *
 120    * @throws IOException
 121    */
 122   @Test(expected = RowTooBigException.class)
 123   public void testScanAcrossManySmallColumns() throws IOException {
 124     byte[] row1 = Bytes.toBytes("row1");
 125     byte[] fam1 = Bytes.toBytes("fam1");
 126
 127     TableDescriptor tableDescriptor = TableDescriptorBuilder.newBuilder(TEST_TD)
 128       .setColumnFamily(ColumnFamilyDescriptorBuilder.of(fam1)).build();
 129
 130     final RegionInfo hri = RegionInfoBuilder.newBuilder(tableDescriptor.getTableName()).build();
 131     HRegion region = HBaseTestingUtil.createRegionAndWAL(hri, rootRegionDir,
 132       HTU.getConfiguration(), tableDescriptor);
 133     try {
 134       // Add to memstore
 135       for (int i = 0; i < 10; i++) {
 136         Put put = new Put(row1);
 137         for (int j = 0; j < 10 * 10000; j++) {
 138           byte[] value = new byte[10];
 139           put.addColumn(fam1, Bytes.toBytes("col_" + i + "_" + j), value);
 140         }
 141         region.put(put);
 142         region.flush(true);
 143       }
 144       region.compact(true);
 145
 146       Get get = new Get(row1);
 147       region.get(get);
 148     } finally {
 149       HBaseTestingUtil.closeRegionAndWAL(region);
 150     }
 151   }
 152 }