/*
* 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.
*/
package org.apache.hadoop.hbase.io.encoding;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.MediumTests;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.io.hfile.CacheConfig;
import org.apache.hadoop.hbase.io.hfile.LruBlockCache;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.MultiThreadedWriter;
import org.apache.hadoop.hbase.util.Strings;
import org.apache.hadoop.hbase.util.test.LoadTestKVGenerator;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
/**
* Tests encoded seekers by loading and reading values.
*/
@Category(MediumTests.class)
@RunWith(Parameterized.class)
public class TestEncodedSeekers {
private static final String TABLE_NAME = "encodedSeekersTable";
private static final String CF_NAME = "encodedSeekersCF";
private static final byte[] CF_BYTES = Bytes.toBytes(CF_NAME);
private static final int MAX_VERSIONS = 5;
private static final int BLOCK_SIZE = 64 * 1024;
private static final int MIN_VALUE_SIZE = 30;
private static final int MAX_VALUE_SIZE = 60;
private static final int NUM_ROWS = 1003;
private static final int NUM_COLS_PER_ROW = 20;
private static final int NUM_HFILES = 4;
private static final int NUM_ROWS_PER_FLUSH = NUM_ROWS / NUM_HFILES;
private final HBaseTestingUtility testUtil = new HBaseTestingUtility();
private final DataBlockEncoding encoding;
private final boolean encodeOnDisk;
/** Enable when debugging */
private static final boolean VERBOSE = false;
@Parameters
public static Collection<Object[]> parameters() {
List<Object[]> paramList = new ArrayList<Object[]>();
for (DataBlockEncoding encoding : DataBlockEncoding.values()) {
for (boolean encodeOnDisk : new boolean[]{false, true}) {
paramList.add(new Object[] { encoding, encodeOnDisk });
}
}
return paramList;
}
public TestEncodedSeekers(DataBlockEncoding encoding, boolean encodeOnDisk) {
this.encoding = encoding;
this.encodeOnDisk = encodeOnDisk;
}
@Test
public void testEncodedSeeker() throws IOException {
System.err.println("Testing encoded seekers for encoding " + encoding);
LruBlockCache cache = (LruBlockCache)
new CacheConfig(testUtil.getConfiguration()).getBlockCache();
cache.clearCache();
HRegion region = testUtil.createTestRegion(
TABLE_NAME, new HColumnDescriptor(CF_NAME)
.setMaxVersions(MAX_VERSIONS)
.setDataBlockEncoding(encoding)
.setEncodeOnDisk(encodeOnDisk)
.setBlocksize(BLOCK_SIZE)
);
//write the data, but leave some in the memstore
doPuts(region);
//verify correctness when memstore contains data
doGets(region);
//verify correctness again after compacting
region.compactStores();
doGets(region);
Map<DataBlockEncoding, Integer> encodingCounts = cache.getEncodingCountsForTest();
// Ensure that compactions don't pollute the cache with unencoded blocks
// in case of in-cache-only encoding.
System.err.println("encodingCounts=" + encodingCounts);
assertEquals(1, encodingCounts.size());
DataBlockEncoding encodingInCache = encodingCounts.keySet().iterator().next();
assertEquals(encoding, encodingInCache);
assertTrue(encodingCounts.get(encodingInCache) > 0);
}
private void doPuts(HRegion region) throws IOException{
LoadTestKVGenerator dataGenerator = new LoadTestKVGenerator(MIN_VALUE_SIZE, MAX_VALUE_SIZE);
for (int i = 0; i < NUM_ROWS; ++i) {
byte[] key = MultiThreadedWriter.longToByteArrayKey(i);
for (int j = 0; j < NUM_COLS_PER_ROW; ++j) {
Put put = new Put(key);
String colAsStr = String.valueOf(j);
byte[] col = Bytes.toBytes(colAsStr);
byte[] value = dataGenerator.generateRandomSizeValue(i, colAsStr);
put.add(CF_BYTES, Bytes.toBytes(colAsStr), value);
if(VERBOSE){
KeyValue kvPut = new KeyValue(key, CF_BYTES, col, value);
System.err.println(Strings.padFront(i+"", ' ', 4)+" "+kvPut);
}
region.put(put);
}
if (i % NUM_ROWS_PER_FLUSH == 0) {
region.flushcache();
}
}
}
private void doGets(HRegion region) throws IOException{
for (int i = 0; i < NUM_ROWS; ++i) {
final byte[] rowKey = MultiThreadedWriter.longToByteArrayKey(i);
for (int j = 0; j < NUM_COLS_PER_ROW; ++j) {
final String qualStr = String.valueOf(j);
if (VERBOSE) {
System.err.println("Reading row " + i + ", column " + j + " " + Bytes.toString(rowKey)+"/"
+qualStr);
}
final byte[] qualBytes = Bytes.toBytes(qualStr);
Get get = new Get(rowKey);
get.addColumn(CF_BYTES, qualBytes);
Result result = region.get(get, null);
assertEquals(1, result.size());
assertTrue(LoadTestKVGenerator.verify(Bytes.toString(rowKey), qualStr,
result.getValue(CF_BYTES, qualBytes)));
}
}
}
}