/*
* 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.hfile;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.regionserver.BloomType;
import org.apache.hadoop.hbase.regionserver.InternalScanner;
import org.apache.hadoop.hbase.regionserver.Region;
import org.apache.hadoop.hbase.testclassification.IOTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.AfterClass;
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;
/**
* Test the optimization that does not scan files where all key ranges are excluded.
*/
@RunWith(Parameterized.class)
@Category({IOTests.class, SmallTests.class})
public class TestScannerSelectionUsingKeyRange {
private static final HBaseTestingUtility TEST_UTIL = HBaseTestingUtility.createLocalHTU();
private static TableName TABLE = TableName.valueOf("myTable");
private static String FAMILY = "myCF";
private static byte[] FAMILY_BYTES = Bytes.toBytes(FAMILY);
private static final int NUM_ROWS = 8;
private static final int NUM_COLS_PER_ROW = 5;
private static final int NUM_FILES = 2;
private static final Map<Object, Integer> TYPE_COUNT = new HashMap<>(3);
static {
TYPE_COUNT.put(BloomType.ROWCOL, 0);
TYPE_COUNT.put(BloomType.ROW, 0);
TYPE_COUNT.put(BloomType.NONE, 0);
}
private BloomType bloomType;
private int expectedCount;
@Parameters
public static Collection<Object[]> parameters() {
List<Object[]> params = new ArrayList<>();
for (Object type : TYPE_COUNT.keySet()) {
params.add(new Object[] { type, TYPE_COUNT.get(type) });
}
return params;
}
public TestScannerSelectionUsingKeyRange(Object type, Object count) {
bloomType = (BloomType)type;
expectedCount = (Integer) count;
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
TEST_UTIL.cleanupTestDir();
}
@Test
public void testScannerSelection() throws IOException {
Configuration conf = TEST_UTIL.getConfiguration();
conf.setInt("hbase.hstore.compactionThreshold", 10000);
HColumnDescriptor hcd = new HColumnDescriptor(FAMILY_BYTES).setBlockCacheEnabled(true)
.setBloomFilterType(bloomType);
HTableDescriptor htd = new HTableDescriptor(TABLE);
htd.addFamily(hcd);
HRegionInfo info = new HRegionInfo(TABLE);
Region region = HBaseTestingUtility.createRegionAndWAL(info, TEST_UTIL.getDataTestDir(), conf,
htd);
for (int iFile = 0; iFile < NUM_FILES; ++iFile) {
for (int iRow = 0; iRow < NUM_ROWS; ++iRow) {
Put put = new Put(Bytes.toBytes("row" + iRow));
for (int iCol = 0; iCol < NUM_COLS_PER_ROW; ++iCol) {
put.addColumn(FAMILY_BYTES, Bytes.toBytes("col" + iCol),
Bytes.toBytes("value" + iFile + "_" + iRow + "_" + iCol));
}
region.put(put);
}
region.flush(true);
}
Scan scan = new Scan(Bytes.toBytes("aaa"), Bytes.toBytes("aaz"));
CacheConfig.blockCacheDisabled = false;
CacheConfig cacheConf = new CacheConfig(conf);
LruBlockCache cache = (LruBlockCache) cacheConf.getBlockCache();
cache.clearCache();
InternalScanner scanner = region.getScanner(scan);
List<Cell> results = new ArrayList<>();
while (scanner.next(results)) {
}
scanner.close();
assertEquals(0, results.size());
Set<String> accessedFiles = cache.getCachedFileNamesForTest();
assertEquals(expectedCount, accessedFiles.size());
HBaseTestingUtility.closeRegionAndWAL(region);
}
}