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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.io.hfile;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.nio.ByteBuffer;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.ArrayList;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.List;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.fs.FSDataInputStream;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.CellComparatorImpl;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.HBaseClassTestRule;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.HBaseTestingUtil;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.KeyValue;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.io.encoding.DataBlockEncoding;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.testclassification.IOTests;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.testclassification.MediumTests;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.junit.Assert;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.junit.Before;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.junit.ClassRule;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.junit.Test;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41">@Category({ IOTests.class, MediumTests.class })</span> |
| <span class="source-line-no">042</span><span id="line-42">public class TestRowIndexV1DataEncoder {</span> |
| <span class="source-line-no">043</span><span id="line-43"> @ClassRule</span> |
| <span class="source-line-no">044</span><span id="line-44"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">045</span><span id="line-45"> HBaseClassTestRule.forClass(TestRowIndexV1DataEncoder.class);</span> |
| <span class="source-line-no">046</span><span id="line-46"></span> |
| <span class="source-line-no">047</span><span id="line-47"> private static final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> private Configuration conf;</span> |
| <span class="source-line-no">050</span><span id="line-50"> private FileSystem fs;</span> |
| <span class="source-line-no">051</span><span id="line-51"> private DataBlockEncoding dataBlockEncoding;</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> @Before</span> |
| <span class="source-line-no">054</span><span id="line-54"> public void setUp() throws IOException {</span> |
| <span class="source-line-no">055</span><span id="line-55"> conf = TEST_UTIL.getConfiguration();</span> |
| <span class="source-line-no">056</span><span id="line-56"> fs = FileSystem.get(conf);</span> |
| <span class="source-line-no">057</span><span id="line-57"> dataBlockEncoding = DataBlockEncoding.ROW_INDEX_V1;</span> |
| <span class="source-line-no">058</span><span id="line-58"> }</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> @Test</span> |
| <span class="source-line-no">061</span><span id="line-61"> public void testBlockCountWritten() throws IOException {</span> |
| <span class="source-line-no">062</span><span id="line-62"> Path hfilePath = new Path(TEST_UTIL.getDataTestDir(), "testHFileFormatV3");</span> |
| <span class="source-line-no">063</span><span id="line-63"> final int entryCount = 10000;</span> |
| <span class="source-line-no">064</span><span id="line-64"> writeDataToHFile(hfilePath, entryCount);</span> |
| <span class="source-line-no">065</span><span id="line-65"> }</span> |
| <span class="source-line-no">066</span><span id="line-66"></span> |
| <span class="source-line-no">067</span><span id="line-67"> private void writeDataToHFile(Path hfilePath, int entryCount) throws IOException {</span> |
| <span class="source-line-no">068</span><span id="line-68"> HFileContext context =</span> |
| <span class="source-line-no">069</span><span id="line-69"> new HFileContextBuilder().withBlockSize(1024).withDataBlockEncoding(dataBlockEncoding)</span> |
| <span class="source-line-no">070</span><span id="line-70"> .withCellComparator(CellComparatorImpl.COMPARATOR).build();</span> |
| <span class="source-line-no">071</span><span id="line-71"> CacheConfig cacheConfig = new CacheConfig(conf);</span> |
| <span class="source-line-no">072</span><span id="line-72"> HFile.Writer writer = new HFile.WriterFactory(conf, cacheConfig).withPath(fs, hfilePath)</span> |
| <span class="source-line-no">073</span><span id="line-73"> .withFileContext(context).create();</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> List<KeyValue> keyValues = new ArrayList<>(entryCount);</span> |
| <span class="source-line-no">076</span><span id="line-76"></span> |
| <span class="source-line-no">077</span><span id="line-77"> writeKeyValues(entryCount, writer, keyValues);</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> FSDataInputStream fsdis = fs.open(hfilePath);</span> |
| <span class="source-line-no">080</span><span id="line-80"></span> |
| <span class="source-line-no">081</span><span id="line-81"> long fileSize = fs.getFileStatus(hfilePath).getLen();</span> |
| <span class="source-line-no">082</span><span id="line-82"> FixedFileTrailer trailer = FixedFileTrailer.readFromStream(fsdis, fileSize);</span> |
| <span class="source-line-no">083</span><span id="line-83"></span> |
| <span class="source-line-no">084</span><span id="line-84"> // HBASE-23788</span> |
| <span class="source-line-no">085</span><span id="line-85"> // kv size = 24 bytes, block size = 1024 bytes</span> |
| <span class="source-line-no">086</span><span id="line-86"> // per row encoded data written = (4 (Row index) + 24 (Cell size) + 1 (MVCC)) bytes = 29 bytes</span> |
| <span class="source-line-no">087</span><span id="line-87"> // creating block size of (29 * 36) bytes = 1044 bytes</span> |
| <span class="source-line-no">088</span><span id="line-88"> // Number of blocks = ceil((29 * 10000) / 1044) = 278</span> |
| <span class="source-line-no">089</span><span id="line-89"> // Without the patch it would have produced 244 blocks (each block of 1236 bytes)</span> |
| <span class="source-line-no">090</span><span id="line-90"> // Earlier this would create blocks ~20% greater than the block size of 1024 bytes</span> |
| <span class="source-line-no">091</span><span id="line-91"> // After this patch actual block size is ~2% greater than the block size of 1024 bytes</span> |
| <span class="source-line-no">092</span><span id="line-92"> Assert.assertEquals(278, trailer.getDataIndexCount());</span> |
| <span class="source-line-no">093</span><span id="line-93"> }</span> |
| <span class="source-line-no">094</span><span id="line-94"></span> |
| <span class="source-line-no">095</span><span id="line-95"> private void writeKeyValues(int entryCount, HFile.Writer writer, List<KeyValue> keyValues)</span> |
| <span class="source-line-no">096</span><span id="line-96"> throws IOException {</span> |
| <span class="source-line-no">097</span><span id="line-97"> for (int i = 0; i < entryCount; ++i) {</span> |
| <span class="source-line-no">098</span><span id="line-98"> byte[] keyBytes = intToBytes(i);</span> |
| <span class="source-line-no">099</span><span id="line-99"></span> |
| <span class="source-line-no">100</span><span id="line-100"> byte[] valueBytes = new byte[0];</span> |
| <span class="source-line-no">101</span><span id="line-101"> KeyValue keyValue = new KeyValue(keyBytes, null, null, valueBytes);</span> |
| <span class="source-line-no">102</span><span id="line-102"></span> |
| <span class="source-line-no">103</span><span id="line-103"> writer.append(keyValue);</span> |
| <span class="source-line-no">104</span><span id="line-104"> keyValues.add(keyValue);</span> |
| <span class="source-line-no">105</span><span id="line-105"> }</span> |
| <span class="source-line-no">106</span><span id="line-106"> writer.close();</span> |
| <span class="source-line-no">107</span><span id="line-107"> }</span> |
| <span class="source-line-no">108</span><span id="line-108"></span> |
| <span class="source-line-no">109</span><span id="line-109"> private byte[] intToBytes(final int i) {</span> |
| <span class="source-line-no">110</span><span id="line-110"> ByteBuffer bb = ByteBuffer.allocate(4);</span> |
| <span class="source-line-no">111</span><span id="line-111"> bb.putInt(i);</span> |
| <span class="source-line-no">112</span><span id="line-112"> return bb.array();</span> |
| <span class="source-line-no">113</span><span id="line-113"> }</span> |
| <span class="source-line-no">114</span><span id="line-114">}</span> |
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| </pre> |
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