| /** |
| * |
| * 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.regionserver; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.TreeSet; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.Cell; |
| import org.apache.hadoop.hbase.CellUtil; |
| import org.apache.hadoop.hbase.HBaseTestCase; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HColumnDescriptor; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.HRegionInfo; |
| import org.apache.hadoop.hbase.KeyValue; |
| import org.apache.hadoop.hbase.KeyValueUtil; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.Scan; |
| import org.apache.hadoop.hbase.io.HFileLink; |
| import org.apache.hadoop.hbase.io.encoding.DataBlockEncoding; |
| import org.apache.hadoop.hbase.io.hfile.BlockCache; |
| import org.apache.hadoop.hbase.io.hfile.CacheConfig; |
| import org.apache.hadoop.hbase.io.hfile.CacheStats; |
| import org.apache.hadoop.hbase.io.hfile.HFileContext; |
| import org.apache.hadoop.hbase.io.hfile.HFileContextBuilder; |
| import org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoder; |
| import org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoderImpl; |
| import org.apache.hadoop.hbase.io.hfile.HFileScanner; |
| import org.apache.hadoop.hbase.testclassification.RegionServerTests; |
| import org.apache.hadoop.hbase.testclassification.SmallTests; |
| import org.apache.hadoop.hbase.util.BloomFilterFactory; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.util.ChecksumType; |
| import org.apache.hadoop.hbase.util.FSUtils; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.mockito.Mockito; |
| |
| import com.google.common.base.Joiner; |
| import com.google.common.collect.Iterables; |
| import com.google.common.collect.Lists; |
| |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| /** |
| * Test HStoreFile |
| */ |
| @Category({RegionServerTests.class, SmallTests.class}) |
| public class TestStoreFile extends HBaseTestCase { |
| private static final Log LOG = LogFactory.getLog(TestStoreFile.class); |
| private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); |
| private CacheConfig cacheConf = new CacheConfig(TEST_UTIL.getConfiguration()); |
| private static String ROOT_DIR = TEST_UTIL.getDataTestDir("TestStoreFile").toString(); |
| private static final ChecksumType CKTYPE = ChecksumType.CRC32C; |
| private static final int CKBYTES = 512; |
| private static String TEST_FAMILY = "cf"; |
| |
| @Before |
| public void setUp() throws Exception { |
| super.setUp(); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| super.tearDown(); |
| } |
| |
| /** |
| * Write a file and then assert that we can read from top and bottom halves |
| * using two HalfMapFiles. |
| * @throws Exception |
| */ |
| @Test |
| public void testBasicHalfMapFile() throws Exception { |
| final HRegionInfo hri = |
| new HRegionInfo(TableName.valueOf("testBasicHalfMapFileTb")); |
| HRegionFileSystem regionFs = HRegionFileSystem.createRegionOnFileSystem( |
| conf, fs, new Path(testDir, hri.getTable().getNameAsString()), hri); |
| |
| HFileContext meta = new HFileContextBuilder().withBlockSize(2*1024).build(); |
| StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, this.fs) |
| .withFilePath(regionFs.createTempName()) |
| .withFileContext(meta) |
| .build(); |
| writeStoreFile(writer); |
| |
| Path sfPath = regionFs.commitStoreFile(TEST_FAMILY, writer.getPath()); |
| StoreFile sf = new StoreFile(this.fs, sfPath, conf, cacheConf, |
| BloomType.NONE); |
| checkHalfHFile(regionFs, sf); |
| } |
| |
| private void writeStoreFile(final StoreFileWriter writer) throws IOException { |
| writeStoreFile(writer, Bytes.toBytes(getName()), Bytes.toBytes(getName())); |
| } |
| |
| // pick an split point (roughly halfway) |
| byte[] SPLITKEY = new byte[] { (LAST_CHAR + FIRST_CHAR)/2, FIRST_CHAR}; |
| |
| /* |
| * Writes HStoreKey and ImmutableBytes data to passed writer and |
| * then closes it. |
| * @param writer |
| * @throws IOException |
| */ |
| public static void writeStoreFile(final StoreFileWriter writer, byte[] fam, byte[] qualifier) |
| throws IOException { |
| long now = System.currentTimeMillis(); |
| try { |
| for (char d = FIRST_CHAR; d <= LAST_CHAR; d++) { |
| for (char e = FIRST_CHAR; e <= LAST_CHAR; e++) { |
| byte[] b = new byte[] { (byte) d, (byte) e }; |
| writer.append(new KeyValue(b, fam, qualifier, now, b)); |
| } |
| } |
| } finally { |
| writer.close(); |
| } |
| } |
| |
| /** |
| * Test that our mechanism of writing store files in one region to reference |
| * store files in other regions works. |
| * @throws IOException |
| */ |
| @Test |
| public void testReference() throws IOException { |
| final HRegionInfo hri = new HRegionInfo(TableName.valueOf("testReferenceTb")); |
| HRegionFileSystem regionFs = HRegionFileSystem.createRegionOnFileSystem( |
| conf, fs, new Path(testDir, hri.getTable().getNameAsString()), hri); |
| |
| HFileContext meta = new HFileContextBuilder().withBlockSize(8 * 1024).build(); |
| // Make a store file and write data to it. |
| StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, this.fs) |
| .withFilePath(regionFs.createTempName()) |
| .withFileContext(meta) |
| .build(); |
| writeStoreFile(writer); |
| |
| Path hsfPath = regionFs.commitStoreFile(TEST_FAMILY, writer.getPath()); |
| StoreFile hsf = new StoreFile(this.fs, hsfPath, conf, cacheConf, |
| BloomType.NONE); |
| StoreFileReader reader = hsf.createReader(); |
| // Split on a row, not in middle of row. Midkey returned by reader |
| // may be in middle of row. Create new one with empty column and |
| // timestamp. |
| Cell kv = reader.midkey(); |
| byte [] midRow = CellUtil.cloneRow(kv); |
| kv = reader.getLastKey(); |
| byte [] finalRow = CellUtil.cloneRow(kv); |
| hsf.closeReader(true); |
| |
| // Make a reference |
| HRegionInfo splitHri = new HRegionInfo(hri.getTable(), null, midRow); |
| Path refPath = splitStoreFile(regionFs, splitHri, TEST_FAMILY, hsf, midRow, true); |
| StoreFile refHsf = new StoreFile(this.fs, refPath, conf, cacheConf, |
| BloomType.NONE); |
| // Now confirm that I can read from the reference and that it only gets |
| // keys from top half of the file. |
| HFileScanner s = refHsf.createReader().getScanner(false, false); |
| for(boolean first = true; (!s.isSeeked() && s.seekTo()) || s.next();) { |
| ByteBuffer bb = ByteBuffer.wrap(((KeyValue) s.getKey()).getKey()); |
| kv = KeyValueUtil.createKeyValueFromKey(bb); |
| if (first) { |
| assertTrue(Bytes.equals(kv.getRowArray(), kv.getRowOffset(), kv.getRowLength(), midRow, 0, |
| midRow.length)); |
| first = false; |
| } |
| } |
| assertTrue(Bytes.equals(kv.getRowArray(), kv.getRowOffset(), kv.getRowLength(), finalRow, 0, |
| finalRow.length)); |
| } |
| |
| @Test |
| public void testEmptyStoreFileRestrictKeyRanges() throws Exception { |
| StoreFileReader reader = mock(StoreFileReader.class); |
| Store store = mock(Store.class); |
| HColumnDescriptor hcd = mock(HColumnDescriptor.class); |
| byte[] cf = Bytes.toBytes("ty"); |
| when(hcd.getName()).thenReturn(cf); |
| when(store.getFamily()).thenReturn(hcd); |
| StoreFileScanner scanner = |
| new StoreFileScanner(reader, mock(HFileScanner.class), false, false, 0, 0, true); |
| Scan scan = new Scan(); |
| scan.setColumnFamilyTimeRange(cf, 0, 1); |
| assertFalse(scanner.shouldUseScanner(scan, store, 0)); |
| } |
| |
| @Test |
| public void testHFileLink() throws IOException { |
| final HRegionInfo hri = new HRegionInfo(TableName.valueOf("testHFileLinkTb")); |
| // force temp data in hbase/target/test-data instead of /tmp/hbase-xxxx/ |
| Configuration testConf = new Configuration(this.conf); |
| FSUtils.setRootDir(testConf, testDir); |
| HRegionFileSystem regionFs = HRegionFileSystem.createRegionOnFileSystem( |
| testConf, fs, FSUtils.getTableDir(testDir, hri.getTable()), hri); |
| HFileContext meta = new HFileContextBuilder().withBlockSize(8 * 1024).build(); |
| |
| // Make a store file and write data to it. |
| StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, this.fs) |
| .withFilePath(regionFs.createTempName()) |
| .withFileContext(meta) |
| .build(); |
| writeStoreFile(writer); |
| |
| Path storeFilePath = regionFs.commitStoreFile(TEST_FAMILY, writer.getPath()); |
| Path dstPath = new Path(regionFs.getTableDir(), new Path("test-region", TEST_FAMILY)); |
| HFileLink.create(testConf, this.fs, dstPath, hri, storeFilePath.getName()); |
| Path linkFilePath = new Path(dstPath, |
| HFileLink.createHFileLinkName(hri, storeFilePath.getName())); |
| |
| // Try to open store file from link |
| StoreFileInfo storeFileInfo = new StoreFileInfo(testConf, this.fs, linkFilePath); |
| StoreFile hsf = new StoreFile(this.fs, storeFileInfo, testConf, cacheConf, |
| BloomType.NONE); |
| assertTrue(storeFileInfo.isLink()); |
| |
| // Now confirm that I can read from the link |
| int count = 1; |
| HFileScanner s = hsf.createReader().getScanner(false, false); |
| s.seekTo(); |
| while (s.next()) { |
| count++; |
| } |
| assertEquals((LAST_CHAR - FIRST_CHAR + 1) * (LAST_CHAR - FIRST_CHAR + 1), count); |
| } |
| |
| /** |
| * This test creates an hfile and then the dir structures and files to verify that references |
| * to hfilelinks (created by snapshot clones) can be properly interpreted. |
| */ |
| @Test |
| public void testReferenceToHFileLink() throws IOException { |
| // force temp data in hbase/target/test-data instead of /tmp/hbase-xxxx/ |
| Configuration testConf = new Configuration(this.conf); |
| FSUtils.setRootDir(testConf, testDir); |
| |
| // adding legal table name chars to verify regex handles it. |
| HRegionInfo hri = new HRegionInfo(TableName.valueOf("_original-evil-name")); |
| HRegionFileSystem regionFs = HRegionFileSystem.createRegionOnFileSystem( |
| testConf, fs, FSUtils.getTableDir(testDir, hri.getTable()), hri); |
| |
| HFileContext meta = new HFileContextBuilder().withBlockSize(8 * 1024).build(); |
| // Make a store file and write data to it. <root>/<tablename>/<rgn>/<cf>/<file> |
| StoreFileWriter writer = new StoreFileWriter.Builder(testConf, cacheConf, this.fs) |
| .withFilePath(regionFs.createTempName()) |
| .withFileContext(meta) |
| .build(); |
| writeStoreFile(writer); |
| Path storeFilePath = regionFs.commitStoreFile(TEST_FAMILY, writer.getPath()); |
| |
| // create link to store file. <root>/clone/region/<cf>/<hfile>-<region>-<table> |
| HRegionInfo hriClone = new HRegionInfo(TableName.valueOf("clone")); |
| HRegionFileSystem cloneRegionFs = HRegionFileSystem.createRegionOnFileSystem( |
| testConf, fs, FSUtils.getTableDir(testDir, hri.getTable()), |
| hriClone); |
| Path dstPath = cloneRegionFs.getStoreDir(TEST_FAMILY); |
| HFileLink.create(testConf, this.fs, dstPath, hri, storeFilePath.getName()); |
| Path linkFilePath = new Path(dstPath, |
| HFileLink.createHFileLinkName(hri, storeFilePath.getName())); |
| |
| // create splits of the link. |
| // <root>/clone/splitA/<cf>/<reftohfilelink>, |
| // <root>/clone/splitB/<cf>/<reftohfilelink> |
| HRegionInfo splitHriA = new HRegionInfo(hri.getTable(), null, SPLITKEY); |
| HRegionInfo splitHriB = new HRegionInfo(hri.getTable(), SPLITKEY, null); |
| StoreFile f = new StoreFile(fs, linkFilePath, testConf, cacheConf, BloomType.NONE); |
| f.createReader(); |
| Path pathA = splitStoreFile(cloneRegionFs, splitHriA, TEST_FAMILY, f, SPLITKEY, true); // top |
| Path pathB = splitStoreFile(cloneRegionFs, splitHriB, TEST_FAMILY, f, SPLITKEY, false);// bottom |
| f.closeReader(true); |
| // OK test the thing |
| FSUtils.logFileSystemState(fs, testDir, LOG); |
| |
| // There is a case where a file with the hfilelink pattern is actually a daughter |
| // reference to a hfile link. This code in StoreFile that handles this case. |
| |
| // Try to open store file from link |
| StoreFile hsfA = new StoreFile(this.fs, pathA, testConf, cacheConf, |
| BloomType.NONE); |
| |
| // Now confirm that I can read from the ref to link |
| int count = 1; |
| HFileScanner s = hsfA.createReader().getScanner(false, false); |
| s.seekTo(); |
| while (s.next()) { |
| count++; |
| } |
| assertTrue(count > 0); // read some rows here |
| |
| // Try to open store file from link |
| StoreFile hsfB = new StoreFile(this.fs, pathB, testConf, cacheConf, |
| BloomType.NONE); |
| |
| // Now confirm that I can read from the ref to link |
| HFileScanner sB = hsfB.createReader().getScanner(false, false); |
| sB.seekTo(); |
| |
| //count++ as seekTo() will advance the scanner |
| count++; |
| while (sB.next()) { |
| count++; |
| } |
| |
| // read the rest of the rows |
| assertEquals((LAST_CHAR - FIRST_CHAR + 1) * (LAST_CHAR - FIRST_CHAR + 1), count); |
| } |
| |
| private void checkHalfHFile(final HRegionFileSystem regionFs, final StoreFile f) |
| throws IOException { |
| Cell midkey = f.createReader().midkey(); |
| KeyValue midKV = (KeyValue)midkey; |
| byte [] midRow = CellUtil.cloneRow(midKV); |
| // Create top split. |
| HRegionInfo topHri = new HRegionInfo(regionFs.getRegionInfo().getTable(), |
| null, midRow); |
| Path topPath = splitStoreFile(regionFs, topHri, TEST_FAMILY, f, midRow, true); |
| // Create bottom split. |
| HRegionInfo bottomHri = new HRegionInfo(regionFs.getRegionInfo().getTable(), |
| midRow, null); |
| Path bottomPath = splitStoreFile(regionFs, bottomHri, TEST_FAMILY, f, midRow, false); |
| // Make readers on top and bottom. |
| StoreFileReader top = new StoreFile( |
| this.fs, topPath, conf, cacheConf, BloomType.NONE).createReader(); |
| StoreFileReader bottom = new StoreFile( |
| this.fs, bottomPath, conf, cacheConf, BloomType.NONE).createReader(); |
| ByteBuffer previous = null; |
| LOG.info("Midkey: " + midKV.toString()); |
| ByteBuffer bbMidkeyBytes = ByteBuffer.wrap(midKV.getKey()); |
| try { |
| // Now make two HalfMapFiles and assert they can read the full backing |
| // file, one from the top and the other from the bottom. |
| // Test bottom half first. |
| // Now test reading from the top. |
| boolean first = true; |
| ByteBuffer key = null; |
| HFileScanner topScanner = top.getScanner(false, false); |
| while ((!topScanner.isSeeked() && topScanner.seekTo()) || |
| (topScanner.isSeeked() && topScanner.next())) { |
| key = ByteBuffer.wrap(((KeyValue) topScanner.getKey()).getKey()); |
| |
| if ((topScanner.getReader().getComparator().compare(midKV, key.array(), |
| key.arrayOffset(), key.limit())) > 0) { |
| fail("key=" + Bytes.toStringBinary(key) + " < midkey=" + |
| midkey); |
| } |
| if (first) { |
| first = false; |
| LOG.info("First in top: " + Bytes.toString(Bytes.toBytes(key))); |
| } |
| } |
| LOG.info("Last in top: " + Bytes.toString(Bytes.toBytes(key))); |
| |
| first = true; |
| HFileScanner bottomScanner = bottom.getScanner(false, false); |
| while ((!bottomScanner.isSeeked() && bottomScanner.seekTo()) || |
| bottomScanner.next()) { |
| previous = ByteBuffer.wrap(((KeyValue) bottomScanner.getKey()).getKey()); |
| key = ByteBuffer.wrap(((KeyValue) bottomScanner.getKey()).getKey()); |
| if (first) { |
| first = false; |
| LOG.info("First in bottom: " + |
| Bytes.toString(Bytes.toBytes(previous))); |
| } |
| assertTrue(key.compareTo(bbMidkeyBytes) < 0); |
| } |
| if (previous != null) { |
| LOG.info("Last in bottom: " + Bytes.toString(Bytes.toBytes(previous))); |
| } |
| // Remove references. |
| regionFs.cleanupDaughterRegion(topHri); |
| regionFs.cleanupDaughterRegion(bottomHri); |
| |
| // Next test using a midkey that does not exist in the file. |
| // First, do a key that is < than first key. Ensure splits behave |
| // properly. |
| byte [] badmidkey = Bytes.toBytes(" ."); |
| assertTrue(fs.exists(f.getPath())); |
| topPath = splitStoreFile(regionFs, topHri, TEST_FAMILY, f, badmidkey, true); |
| bottomPath = splitStoreFile(regionFs, bottomHri, TEST_FAMILY, f, badmidkey, false); |
| |
| assertNull(bottomPath); |
| |
| top = new StoreFile(this.fs, topPath, conf, cacheConf, BloomType.NONE).createReader(); |
| // Now read from the top. |
| first = true; |
| topScanner = top.getScanner(false, false); |
| KeyValue.KeyOnlyKeyValue keyOnlyKV = new KeyValue.KeyOnlyKeyValue(); |
| while ((!topScanner.isSeeked() && topScanner.seekTo()) || |
| topScanner.next()) { |
| key = ByteBuffer.wrap(((KeyValue) topScanner.getKey()).getKey()); |
| keyOnlyKV.setKey(key.array(), 0 + key.arrayOffset(), key.limit()); |
| assertTrue(topScanner.getReader().getComparator() |
| .compare(keyOnlyKV, badmidkey, 0, badmidkey.length) >= 0); |
| if (first) { |
| first = false; |
| KeyValue keyKV = KeyValueUtil.createKeyValueFromKey(key); |
| LOG.info("First top when key < bottom: " + keyKV); |
| String tmp = |
| Bytes.toString(keyKV.getRowArray(), keyKV.getRowOffset(), keyKV.getRowLength()); |
| for (int i = 0; i < tmp.length(); i++) { |
| assertTrue(tmp.charAt(i) == 'a'); |
| } |
| } |
| } |
| KeyValue keyKV = KeyValueUtil.createKeyValueFromKey(key); |
| LOG.info("Last top when key < bottom: " + keyKV); |
| String tmp = Bytes.toString(keyKV.getRowArray(), keyKV.getRowOffset(), keyKV.getRowLength()); |
| for (int i = 0; i < tmp.length(); i++) { |
| assertTrue(tmp.charAt(i) == 'z'); |
| } |
| // Remove references. |
| regionFs.cleanupDaughterRegion(topHri); |
| regionFs.cleanupDaughterRegion(bottomHri); |
| |
| // Test when badkey is > than last key in file ('||' > 'zz'). |
| badmidkey = Bytes.toBytes("|||"); |
| topPath = splitStoreFile(regionFs,topHri, TEST_FAMILY, f, badmidkey, true); |
| bottomPath = splitStoreFile(regionFs, bottomHri, TEST_FAMILY, f, badmidkey, false); |
| assertNull(topPath); |
| bottom = new StoreFile(this.fs, bottomPath, conf, cacheConf, |
| BloomType.NONE).createReader(); |
| first = true; |
| bottomScanner = bottom.getScanner(false, false); |
| while ((!bottomScanner.isSeeked() && bottomScanner.seekTo()) || |
| bottomScanner.next()) { |
| key = ByteBuffer.wrap(((KeyValue) bottomScanner.getKey()).getKey()); |
| if (first) { |
| first = false; |
| keyKV = KeyValueUtil.createKeyValueFromKey(key); |
| LOG.info("First bottom when key > top: " + keyKV); |
| tmp = Bytes.toString(keyKV.getRowArray(), keyKV.getRowOffset(), keyKV.getRowLength()); |
| for (int i = 0; i < tmp.length(); i++) { |
| assertTrue(tmp.charAt(i) == 'a'); |
| } |
| } |
| } |
| keyKV = KeyValueUtil.createKeyValueFromKey(key); |
| LOG.info("Last bottom when key > top: " + keyKV); |
| for (int i = 0; i < tmp.length(); i++) { |
| assertTrue(Bytes.toString(keyKV.getRowArray(), keyKV.getRowOffset(), keyKV.getRowLength()) |
| .charAt(i) == 'z'); |
| } |
| } finally { |
| if (top != null) { |
| top.close(true); // evict since we are about to delete the file |
| } |
| if (bottom != null) { |
| bottom.close(true); // evict since we are about to delete the file |
| } |
| fs.delete(f.getPath(), true); |
| } |
| } |
| |
| private static StoreFileScanner getStoreFileScanner(StoreFileReader reader, boolean cacheBlocks, |
| boolean pread) { |
| return reader.getStoreFileScanner(cacheBlocks, pread, false, 0, 0, false); |
| } |
| |
| private static final String localFormatter = "%010d"; |
| |
| private void bloomWriteRead(StoreFileWriter writer, FileSystem fs) throws Exception { |
| float err = conf.getFloat(BloomFilterFactory.IO_STOREFILE_BLOOM_ERROR_RATE, 0); |
| Path f = writer.getPath(); |
| long now = System.currentTimeMillis(); |
| for (int i = 0; i < 2000; i += 2) { |
| String row = String.format(localFormatter, i); |
| KeyValue kv = new KeyValue(row.getBytes(), "family".getBytes(), |
| "col".getBytes(), now, "value".getBytes()); |
| writer.append(kv); |
| } |
| writer.close(); |
| |
| StoreFileReader reader = new StoreFileReader(fs, f, cacheConf, conf); |
| reader.loadFileInfo(); |
| reader.loadBloomfilter(); |
| StoreFileScanner scanner = getStoreFileScanner(reader, false, false); |
| |
| // check false positives rate |
| int falsePos = 0; |
| int falseNeg = 0; |
| for (int i = 0; i < 2000; i++) { |
| String row = String.format(localFormatter, i); |
| TreeSet<byte[]> columns = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR); |
| columns.add("family:col".getBytes()); |
| |
| Scan scan = new Scan(row.getBytes(),row.getBytes()); |
| scan.addColumn("family".getBytes(), "family:col".getBytes()); |
| Store store = mock(Store.class); |
| HColumnDescriptor hcd = mock(HColumnDescriptor.class); |
| when(hcd.getName()).thenReturn(Bytes.toBytes("family")); |
| when(store.getFamily()).thenReturn(hcd); |
| boolean exists = scanner.shouldUseScanner(scan, store, Long.MIN_VALUE); |
| if (i % 2 == 0) { |
| if (!exists) falseNeg++; |
| } else { |
| if (exists) falsePos++; |
| } |
| } |
| reader.close(true); // evict because we are about to delete the file |
| fs.delete(f, true); |
| assertEquals("False negatives: " + falseNeg, 0, falseNeg); |
| int maxFalsePos = (int) (2 * 2000 * err); |
| assertTrue("Too many false positives: " + falsePos + " (err=" + err + ", expected no more than " |
| + maxFalsePos + ")", falsePos <= maxFalsePos); |
| } |
| |
| private static final int BLOCKSIZE_SMALL = 8192; |
| |
| @Test |
| public void testBloomFilter() throws Exception { |
| FileSystem fs = FileSystem.getLocal(conf); |
| conf.setFloat(BloomFilterFactory.IO_STOREFILE_BLOOM_ERROR_RATE, (float) 0.01); |
| conf.setBoolean(BloomFilterFactory.IO_STOREFILE_BLOOM_ENABLED, true); |
| |
| // write the file |
| Path f = new Path(ROOT_DIR, getName()); |
| HFileContext meta = new HFileContextBuilder().withBlockSize(BLOCKSIZE_SMALL) |
| .withChecksumType(CKTYPE) |
| .withBytesPerCheckSum(CKBYTES).build(); |
| // Make a store file and write data to it. |
| StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, this.fs) |
| .withFilePath(f) |
| .withBloomType(BloomType.ROW) |
| .withMaxKeyCount(2000) |
| .withFileContext(meta) |
| .build(); |
| bloomWriteRead(writer, fs); |
| } |
| |
| @Test |
| public void testDeleteFamilyBloomFilter() throws Exception { |
| FileSystem fs = FileSystem.getLocal(conf); |
| conf.setFloat(BloomFilterFactory.IO_STOREFILE_BLOOM_ERROR_RATE, (float) 0.01); |
| conf.setBoolean(BloomFilterFactory.IO_STOREFILE_BLOOM_ENABLED, true); |
| float err = conf.getFloat(BloomFilterFactory.IO_STOREFILE_BLOOM_ERROR_RATE, 0); |
| |
| // write the file |
| Path f = new Path(ROOT_DIR, getName()); |
| |
| HFileContext meta = new HFileContextBuilder() |
| .withBlockSize(BLOCKSIZE_SMALL) |
| .withChecksumType(CKTYPE) |
| .withBytesPerCheckSum(CKBYTES).build(); |
| // Make a store file and write data to it. |
| StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, this.fs) |
| .withFilePath(f) |
| .withMaxKeyCount(2000) |
| .withFileContext(meta) |
| .build(); |
| |
| // add delete family |
| long now = System.currentTimeMillis(); |
| for (int i = 0; i < 2000; i += 2) { |
| String row = String.format(localFormatter, i); |
| KeyValue kv = new KeyValue(row.getBytes(), "family".getBytes(), |
| "col".getBytes(), now, KeyValue.Type.DeleteFamily, "value".getBytes()); |
| writer.append(kv); |
| } |
| writer.close(); |
| |
| StoreFileReader reader = new StoreFileReader(fs, f, cacheConf, conf); |
| reader.loadFileInfo(); |
| reader.loadBloomfilter(); |
| |
| // check false positives rate |
| int falsePos = 0; |
| int falseNeg = 0; |
| for (int i = 0; i < 2000; i++) { |
| String row = String.format(localFormatter, i); |
| byte[] rowKey = Bytes.toBytes(row); |
| boolean exists = reader.passesDeleteFamilyBloomFilter(rowKey, 0, |
| rowKey.length); |
| if (i % 2 == 0) { |
| if (!exists) |
| falseNeg++; |
| } else { |
| if (exists) |
| falsePos++; |
| } |
| } |
| assertEquals(1000, reader.getDeleteFamilyCnt()); |
| reader.close(true); // evict because we are about to delete the file |
| fs.delete(f, true); |
| assertEquals("False negatives: " + falseNeg, 0, falseNeg); |
| int maxFalsePos = (int) (2 * 2000 * err); |
| assertTrue("Too many false positives: " + falsePos + " (err=" + err |
| + ", expected no more than " + maxFalsePos, falsePos <= maxFalsePos); |
| } |
| |
| /** |
| * Test for HBASE-8012 |
| */ |
| @Test |
| public void testReseek() throws Exception { |
| // write the file |
| Path f = new Path(ROOT_DIR, getName()); |
| HFileContext meta = new HFileContextBuilder().withBlockSize(8 * 1024).build(); |
| // Make a store file and write data to it. |
| StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, this.fs) |
| .withFilePath(f) |
| .withFileContext(meta) |
| .build(); |
| |
| writeStoreFile(writer); |
| writer.close(); |
| |
| StoreFileReader reader = new StoreFileReader(fs, f, cacheConf, conf); |
| |
| // Now do reseek with empty KV to position to the beginning of the file |
| |
| KeyValue k = KeyValueUtil.createFirstOnRow(HConstants.EMPTY_BYTE_ARRAY); |
| StoreFileScanner s = getStoreFileScanner(reader, false, false); |
| s.reseek(k); |
| |
| assertNotNull("Intial reseek should position at the beginning of the file", s.peek()); |
| } |
| |
| @Test |
| public void testBloomTypes() throws Exception { |
| float err = (float) 0.01; |
| FileSystem fs = FileSystem.getLocal(conf); |
| conf.setFloat(BloomFilterFactory.IO_STOREFILE_BLOOM_ERROR_RATE, err); |
| conf.setBoolean(BloomFilterFactory.IO_STOREFILE_BLOOM_ENABLED, true); |
| |
| int rowCount = 50; |
| int colCount = 10; |
| int versions = 2; |
| |
| // run once using columns and once using rows |
| BloomType[] bt = {BloomType.ROWCOL, BloomType.ROW}; |
| int[] expKeys = {rowCount*colCount, rowCount}; |
| // below line deserves commentary. it is expected bloom false positives |
| // column = rowCount*2*colCount inserts |
| // row-level = only rowCount*2 inserts, but failures will be magnified by |
| // 2nd for loop for every column (2*colCount) |
| float[] expErr = {2*rowCount*colCount*err, 2*rowCount*2*colCount*err}; |
| |
| for (int x : new int[]{0,1}) { |
| // write the file |
| Path f = new Path(ROOT_DIR, getName() + x); |
| HFileContext meta = new HFileContextBuilder().withBlockSize(BLOCKSIZE_SMALL) |
| .withChecksumType(CKTYPE) |
| .withBytesPerCheckSum(CKBYTES).build(); |
| // Make a store file and write data to it. |
| StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, this.fs) |
| .withFilePath(f) |
| .withBloomType(bt[x]) |
| .withMaxKeyCount(expKeys[x]) |
| .withFileContext(meta) |
| .build(); |
| |
| long now = System.currentTimeMillis(); |
| for (int i = 0; i < rowCount*2; i += 2) { // rows |
| for (int j = 0; j < colCount*2; j += 2) { // column qualifiers |
| String row = String.format(localFormatter, i); |
| String col = String.format(localFormatter, j); |
| for (int k= 0; k < versions; ++k) { // versions |
| KeyValue kv = new KeyValue(row.getBytes(), |
| "family".getBytes(), ("col" + col).getBytes(), |
| now-k, Bytes.toBytes((long)-1)); |
| writer.append(kv); |
| } |
| } |
| } |
| writer.close(); |
| |
| StoreFileReader reader = new StoreFileReader(fs, f, cacheConf, conf); |
| reader.loadFileInfo(); |
| reader.loadBloomfilter(); |
| StoreFileScanner scanner = getStoreFileScanner(reader, false, false); |
| assertEquals(expKeys[x], reader.generalBloomFilter.getKeyCount()); |
| |
| Store store = mock(Store.class); |
| HColumnDescriptor hcd = mock(HColumnDescriptor.class); |
| when(hcd.getName()).thenReturn(Bytes.toBytes("family")); |
| when(store.getFamily()).thenReturn(hcd); |
| // check false positives rate |
| int falsePos = 0; |
| int falseNeg = 0; |
| for (int i = 0; i < rowCount*2; ++i) { // rows |
| for (int j = 0; j < colCount*2; ++j) { // column qualifiers |
| String row = String.format(localFormatter, i); |
| String col = String.format(localFormatter, j); |
| TreeSet<byte[]> columns = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR); |
| columns.add(("col" + col).getBytes()); |
| |
| Scan scan = new Scan(row.getBytes(),row.getBytes()); |
| scan.addColumn("family".getBytes(), ("col"+col).getBytes()); |
| |
| boolean exists = |
| scanner.shouldUseScanner(scan, store, Long.MIN_VALUE); |
| boolean shouldRowExist = i % 2 == 0; |
| boolean shouldColExist = j % 2 == 0; |
| shouldColExist = shouldColExist || bt[x] == BloomType.ROW; |
| if (shouldRowExist && shouldColExist) { |
| if (!exists) falseNeg++; |
| } else { |
| if (exists) falsePos++; |
| } |
| } |
| } |
| reader.close(true); // evict because we are about to delete the file |
| fs.delete(f, true); |
| System.out.println(bt[x].toString()); |
| System.out.println(" False negatives: " + falseNeg); |
| System.out.println(" False positives: " + falsePos); |
| assertEquals(0, falseNeg); |
| assertTrue(falsePos < 2*expErr[x]); |
| } |
| } |
| |
| @Test |
| public void testSeqIdComparator() { |
| assertOrdering(StoreFile.Comparators.SEQ_ID, mockStoreFile(true, 100, 1000, -1, "/foo/123"), |
| mockStoreFile(true, 100, 1000, -1, "/foo/124"), |
| mockStoreFile(true, 99, 1000, -1, "/foo/126"), |
| mockStoreFile(true, 98, 2000, -1, "/foo/126"), mockStoreFile(false, 3453, -1, 1, "/foo/1"), |
| mockStoreFile(false, 2, -1, 3, "/foo/2"), mockStoreFile(false, 1000, -1, 5, "/foo/2"), |
| mockStoreFile(false, 76, -1, 5, "/foo/3")); |
| } |
| |
| /** |
| * Assert that the given comparator orders the given storefiles in the |
| * same way that they're passed. |
| */ |
| private void assertOrdering(Comparator<StoreFile> comparator, StoreFile ... sfs) { |
| ArrayList<StoreFile> sorted = Lists.newArrayList(sfs); |
| Collections.shuffle(sorted); |
| Collections.sort(sorted, comparator); |
| LOG.debug("sfs: " + Joiner.on(",").join(sfs)); |
| LOG.debug("sorted: " + Joiner.on(",").join(sorted)); |
| assertTrue(Iterables.elementsEqual(Arrays.asList(sfs), sorted)); |
| } |
| |
| /** |
| * Create a mock StoreFile with the given attributes. |
| */ |
| private StoreFile mockStoreFile(boolean bulkLoad, |
| long size, |
| long bulkTimestamp, |
| long seqId, |
| String path) { |
| StoreFile mock = Mockito.mock(StoreFile.class); |
| StoreFileReader reader = Mockito.mock(StoreFileReader.class); |
| |
| Mockito.doReturn(size).when(reader).length(); |
| |
| Mockito.doReturn(reader).when(mock).getReader(); |
| Mockito.doReturn(bulkLoad).when(mock).isBulkLoadResult(); |
| Mockito.doReturn(bulkTimestamp).when(mock).getBulkLoadTimestamp(); |
| Mockito.doReturn(seqId).when(mock).getMaxSequenceId(); |
| Mockito.doReturn(new Path(path)).when(mock).getPath(); |
| String name = "mock storefile, bulkLoad=" + bulkLoad + |
| " bulkTimestamp=" + bulkTimestamp + |
| " seqId=" + seqId + |
| " path=" + path; |
| Mockito.doReturn(name).when(mock).toString(); |
| return mock; |
| } |
| |
| /** |
| * Generate a list of KeyValues for testing based on given parameters |
| * @param timestamps |
| * @param numRows |
| * @param qualifier |
| * @param family |
| * @return |
| */ |
| List<KeyValue> getKeyValueSet(long[] timestamps, int numRows, |
| byte[] qualifier, byte[] family) { |
| List<KeyValue> kvList = new ArrayList<KeyValue>(); |
| for (int i=1;i<=numRows;i++) { |
| byte[] b = Bytes.toBytes(i) ; |
| LOG.info(Bytes.toString(b)); |
| LOG.info(Bytes.toString(b)); |
| for (long timestamp: timestamps) |
| { |
| kvList.add(new KeyValue(b, family, qualifier, timestamp, b)); |
| } |
| } |
| return kvList; |
| } |
| |
| /** |
| * Test to ensure correctness when using StoreFile with multiple timestamps |
| * @throws IOException |
| */ |
| @Test |
| public void testMultipleTimestamps() throws IOException { |
| byte[] family = Bytes.toBytes("familyname"); |
| byte[] qualifier = Bytes.toBytes("qualifier"); |
| int numRows = 10; |
| long[] timestamps = new long[] {20,10,5,1}; |
| Scan scan = new Scan(); |
| |
| // Make up a directory hierarchy that has a regiondir ("7e0102") and familyname. |
| Path storedir = new Path(new Path(testDir, "7e0102"), Bytes.toString(family)); |
| Path dir = new Path(storedir, "1234567890"); |
| HFileContext meta = new HFileContextBuilder().withBlockSize(8 * 1024).build(); |
| // Make a store file and write data to it. |
| StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, this.fs) |
| .withOutputDir(dir) |
| .withFileContext(meta) |
| .build(); |
| |
| List<KeyValue> kvList = getKeyValueSet(timestamps,numRows, |
| qualifier, family); |
| |
| for (KeyValue kv : kvList) { |
| writer.append(kv); |
| } |
| writer.appendMetadata(0, false); |
| writer.close(); |
| |
| StoreFile hsf = new StoreFile(this.fs, writer.getPath(), conf, cacheConf, |
| BloomType.NONE); |
| Store store = mock(Store.class); |
| HColumnDescriptor hcd = mock(HColumnDescriptor.class); |
| when(hcd.getName()).thenReturn(family); |
| when(store.getFamily()).thenReturn(hcd); |
| StoreFileReader reader = hsf.createReader(); |
| StoreFileScanner scanner = getStoreFileScanner(reader, false, false); |
| TreeSet<byte[]> columns = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR); |
| columns.add(qualifier); |
| |
| scan.setTimeRange(20, 100); |
| assertTrue(scanner.shouldUseScanner(scan, store, Long.MIN_VALUE)); |
| |
| scan.setTimeRange(1, 2); |
| assertTrue(scanner.shouldUseScanner(scan, store, Long.MIN_VALUE)); |
| |
| scan.setTimeRange(8, 10); |
| assertTrue(scanner.shouldUseScanner(scan, store, Long.MIN_VALUE)); |
| |
| // lets make sure it still works with column family time ranges |
| scan.setColumnFamilyTimeRange(family, 7, 50); |
| assertTrue(scanner.shouldUseScanner(scan, store, Long.MIN_VALUE)); |
| |
| // This test relies on the timestamp range optimization |
| scan = new Scan(); |
| scan.setTimeRange(27, 50); |
| assertTrue(!scanner.shouldUseScanner(scan, store, Long.MIN_VALUE)); |
| |
| // should still use the scanner because we override the family time range |
| scan = new Scan(); |
| scan.setTimeRange(27, 50); |
| scan.setColumnFamilyTimeRange(family, 7, 50); |
| assertTrue(scanner.shouldUseScanner(scan, store, Long.MIN_VALUE)); |
| |
| } |
| |
| @Test |
| public void testCacheOnWriteEvictOnClose() throws Exception { |
| Configuration conf = this.conf; |
| |
| // Find a home for our files (regiondir ("7e0102") and familyname). |
| Path baseDir = new Path(new Path(testDir, "7e0102"),"twoCOWEOC"); |
| |
| // Grab the block cache and get the initial hit/miss counts |
| BlockCache bc = new CacheConfig(conf).getBlockCache(); |
| assertNotNull(bc); |
| CacheStats cs = bc.getStats(); |
| long startHit = cs.getHitCount(); |
| long startMiss = cs.getMissCount(); |
| long startEvicted = cs.getEvictedCount(); |
| |
| // Let's write a StoreFile with three blocks, with cache on write off |
| conf.setBoolean(CacheConfig.CACHE_BLOCKS_ON_WRITE_KEY, false); |
| CacheConfig cacheConf = new CacheConfig(conf); |
| Path pathCowOff = new Path(baseDir, "123456789"); |
| StoreFileWriter writer = writeStoreFile(conf, cacheConf, pathCowOff, 3); |
| StoreFile hsf = new StoreFile(this.fs, writer.getPath(), conf, cacheConf, |
| BloomType.NONE); |
| LOG.debug(hsf.getPath().toString()); |
| |
| // Read this file, we should see 3 misses |
| StoreFileReader reader = hsf.createReader(); |
| reader.loadFileInfo(); |
| StoreFileScanner scanner = getStoreFileScanner(reader, true, true); |
| scanner.seek(KeyValue.LOWESTKEY); |
| while (scanner.next() != null); |
| assertEquals(startHit, cs.getHitCount()); |
| assertEquals(startMiss + 3, cs.getMissCount()); |
| assertEquals(startEvicted, cs.getEvictedCount()); |
| startMiss += 3; |
| scanner.close(); |
| reader.close(cacheConf.shouldEvictOnClose()); |
| |
| // Now write a StoreFile with three blocks, with cache on write on |
| conf.setBoolean(CacheConfig.CACHE_BLOCKS_ON_WRITE_KEY, true); |
| cacheConf = new CacheConfig(conf); |
| Path pathCowOn = new Path(baseDir, "123456788"); |
| writer = writeStoreFile(conf, cacheConf, pathCowOn, 3); |
| hsf = new StoreFile(this.fs, writer.getPath(), conf, cacheConf, |
| BloomType.NONE); |
| |
| // Read this file, we should see 3 hits |
| reader = hsf.createReader(); |
| scanner = getStoreFileScanner(reader, true, true); |
| scanner.seek(KeyValue.LOWESTKEY); |
| while (scanner.next() != null); |
| assertEquals(startHit + 3, cs.getHitCount()); |
| assertEquals(startMiss, cs.getMissCount()); |
| assertEquals(startEvicted, cs.getEvictedCount()); |
| startHit += 3; |
| scanner.close(); |
| reader.close(cacheConf.shouldEvictOnClose()); |
| |
| // Let's read back the two files to ensure the blocks exactly match |
| hsf = new StoreFile(this.fs, pathCowOff, conf, cacheConf, |
| BloomType.NONE); |
| StoreFileReader readerOne = hsf.createReader(); |
| readerOne.loadFileInfo(); |
| StoreFileScanner scannerOne = getStoreFileScanner(readerOne, true, true); |
| scannerOne.seek(KeyValue.LOWESTKEY); |
| hsf = new StoreFile(this.fs, pathCowOn, conf, cacheConf, |
| BloomType.NONE); |
| StoreFileReader readerTwo = hsf.createReader(); |
| readerTwo.loadFileInfo(); |
| StoreFileScanner scannerTwo = getStoreFileScanner(readerTwo, true, true); |
| scannerTwo.seek(KeyValue.LOWESTKEY); |
| Cell kv1 = null; |
| Cell kv2 = null; |
| while ((kv1 = scannerOne.next()) != null) { |
| kv2 = scannerTwo.next(); |
| assertTrue(kv1.equals(kv2)); |
| KeyValue keyv1 = KeyValueUtil.ensureKeyValue(kv1); |
| KeyValue keyv2 = KeyValueUtil.ensureKeyValue(kv2); |
| assertTrue(Bytes.compareTo( |
| keyv1.getBuffer(), keyv1.getKeyOffset(), keyv1.getKeyLength(), |
| keyv2.getBuffer(), keyv2.getKeyOffset(), keyv2.getKeyLength()) == 0); |
| assertTrue(Bytes.compareTo( |
| kv1.getValueArray(), kv1.getValueOffset(), kv1.getValueLength(), |
| kv2.getValueArray(), kv2.getValueOffset(), kv2.getValueLength()) == 0); |
| } |
| assertNull(scannerTwo.next()); |
| assertEquals(startHit + 6, cs.getHitCount()); |
| assertEquals(startMiss, cs.getMissCount()); |
| assertEquals(startEvicted, cs.getEvictedCount()); |
| startHit += 6; |
| scannerOne.close(); |
| readerOne.close(cacheConf.shouldEvictOnClose()); |
| scannerTwo.close(); |
| readerTwo.close(cacheConf.shouldEvictOnClose()); |
| |
| // Let's close the first file with evict on close turned on |
| conf.setBoolean("hbase.rs.evictblocksonclose", true); |
| cacheConf = new CacheConfig(conf); |
| hsf = new StoreFile(this.fs, pathCowOff, conf, cacheConf, |
| BloomType.NONE); |
| reader = hsf.createReader(); |
| reader.close(cacheConf.shouldEvictOnClose()); |
| |
| // We should have 3 new evictions |
| assertEquals(startHit, cs.getHitCount()); |
| assertEquals(startMiss, cs.getMissCount()); |
| assertEquals(startEvicted + 3, cs.getEvictedCount()); |
| startEvicted += 3; |
| |
| // Let's close the second file with evict on close turned off |
| conf.setBoolean("hbase.rs.evictblocksonclose", false); |
| cacheConf = new CacheConfig(conf); |
| hsf = new StoreFile(this.fs, pathCowOn, conf, cacheConf, |
| BloomType.NONE); |
| reader = hsf.createReader(); |
| reader.close(cacheConf.shouldEvictOnClose()); |
| |
| // We expect no changes |
| assertEquals(startHit, cs.getHitCount()); |
| assertEquals(startMiss, cs.getMissCount()); |
| assertEquals(startEvicted, cs.getEvictedCount()); |
| } |
| |
| private Path splitStoreFile(final HRegionFileSystem regionFs, final HRegionInfo hri, |
| final String family, final StoreFile sf, final byte[] splitKey, boolean isTopRef) |
| throws IOException { |
| FileSystem fs = regionFs.getFileSystem(); |
| Path path = regionFs.splitStoreFile(hri, family, sf, splitKey, isTopRef, null); |
| if (null == path) { |
| return null; |
| } |
| Path regionDir = regionFs.commitDaughterRegion(hri); |
| return new Path(new Path(regionDir, family), path.getName()); |
| } |
| |
| private StoreFileWriter writeStoreFile(Configuration conf, |
| CacheConfig cacheConf, Path path, int numBlocks) |
| throws IOException { |
| // Let's put ~5 small KVs in each block, so let's make 5*numBlocks KVs |
| int numKVs = 5 * numBlocks; |
| List<KeyValue> kvs = new ArrayList<KeyValue>(numKVs); |
| byte [] b = Bytes.toBytes("x"); |
| int totalSize = 0; |
| for (int i=numKVs;i>0;i--) { |
| KeyValue kv = new KeyValue(b, b, b, i, b); |
| kvs.add(kv); |
| // kv has memstoreTS 0, which takes 1 byte to store. |
| totalSize += kv.getLength() + 1; |
| } |
| int blockSize = totalSize / numBlocks; |
| HFileContext meta = new HFileContextBuilder().withBlockSize(blockSize) |
| .withChecksumType(CKTYPE) |
| .withBytesPerCheckSum(CKBYTES) |
| .build(); |
| // Make a store file and write data to it. |
| StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, this.fs) |
| .withFilePath(path) |
| .withMaxKeyCount(2000) |
| .withFileContext(meta) |
| .build(); |
| // We'll write N-1 KVs to ensure we don't write an extra block |
| kvs.remove(kvs.size()-1); |
| for (KeyValue kv : kvs) { |
| writer.append(kv); |
| } |
| writer.appendMetadata(0, false); |
| writer.close(); |
| return writer; |
| } |
| |
| /** |
| * Check if data block encoding information is saved correctly in HFile's |
| * file info. |
| */ |
| @Test |
| public void testDataBlockEncodingMetaData() throws IOException { |
| // Make up a directory hierarchy that has a regiondir ("7e0102") and familyname. |
| Path dir = new Path(new Path(testDir, "7e0102"), "familyname"); |
| Path path = new Path(dir, "1234567890"); |
| |
| DataBlockEncoding dataBlockEncoderAlgo = |
| DataBlockEncoding.FAST_DIFF; |
| HFileDataBlockEncoder dataBlockEncoder = |
| new HFileDataBlockEncoderImpl( |
| dataBlockEncoderAlgo); |
| cacheConf = new CacheConfig(conf); |
| HFileContext meta = new HFileContextBuilder().withBlockSize(BLOCKSIZE_SMALL) |
| .withChecksumType(CKTYPE) |
| .withBytesPerCheckSum(CKBYTES) |
| .withDataBlockEncoding(dataBlockEncoderAlgo) |
| .build(); |
| // Make a store file and write data to it. |
| StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, this.fs) |
| .withFilePath(path) |
| .withMaxKeyCount(2000) |
| .withFileContext(meta) |
| .build(); |
| writer.close(); |
| |
| StoreFile storeFile = new StoreFile(fs, writer.getPath(), conf, |
| cacheConf, BloomType.NONE); |
| StoreFileReader reader = storeFile.createReader(); |
| |
| Map<byte[], byte[]> fileInfo = reader.loadFileInfo(); |
| byte[] value = fileInfo.get(HFileDataBlockEncoder.DATA_BLOCK_ENCODING); |
| assertEquals(dataBlockEncoderAlgo.getNameInBytes(), value); |
| } |
| } |
| |
