private void testEncodersOnDataset(
List<KeyValue> kvList, boolean includesMemstoreTS, boolean includesTags) throws IOException {
ByteBuffer unencodedDataBuf =
RedundantKVGenerator.convertKvToByteBuffer(kvList, includesMemstoreTS);
HFileContext fileContext =
new HFileContextBuilder()
.withIncludesMvcc(includesMemstoreTS)
.withIncludesTags(includesTags)
.build();
for (DataBlockEncoding encoding : DataBlockEncoding.values()) {
DataBlockEncoder encoder = encoding.getEncoder();
if (encoder == null) {
continue;
}
HFileBlockEncodingContext encodingContext =
new HFileBlockDefaultEncodingContext(
encoding, HConstants.HFILEBLOCK_DUMMY_HEADER, fileContext);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
baos.write(HConstants.HFILEBLOCK_DUMMY_HEADER);
DataOutputStream dos = new DataOutputStream(baos);
encoder.startBlockEncoding(encodingContext, dos);
for (KeyValue kv : kvList) {
encoder.encode(kv, encodingContext, dos);
}
encoder.endBlockEncoding(encodingContext, dos, baos.getBuffer());
byte[] encodedData = baos.toByteArray();
testAlgorithm(encodedData, unencodedDataBuf, encoder);
}
}
/**
* Test whether the decompression of first key is implemented correctly.
*
* @throws IOException
*/
@Test
public void testFirstKeyInBlockOnSample() throws IOException {
List<KeyValue> sampleKv = generator.generateTestKeyValues(NUMBER_OF_KV, includesTags);
for (DataBlockEncoding encoding : DataBlockEncoding.values()) {
// Off heap block data support not added for PREFIX_TREE DBE yet.
// TODO remove this once support is added. HBASE-12298
if (this.useOffheapData && encoding == DataBlockEncoding.PREFIX_TREE) continue;
if (encoding.getEncoder() == null) {
continue;
}
DataBlockEncoder encoder = encoding.getEncoder();
ByteBuffer encodedBuffer =
encodeKeyValues(
encoding,
sampleKv,
getEncodingContext(Compression.Algorithm.NONE, encoding),
this.useOffheapData);
Cell key = encoder.getFirstKeyCellInBlock(new SingleByteBuff(encodedBuffer));
KeyValue firstKv = sampleKv.get(0);
if (0 != CellComparator.COMPARATOR.compareKeyIgnoresMvcc(key, firstKv)) {
int commonPrefix = CellUtil.findCommonPrefixInFlatKey(key, firstKv, false, true);
fail(String.format("Bug in '%s' commonPrefix %d", encoder.toString(), commonPrefix));
}
}
}
@Test
public void testNextOnSample() throws IOException {
List<KeyValue> sampleKv = generator.generateTestKeyValues(NUMBER_OF_KV, includesTags);
for (DataBlockEncoding encoding : DataBlockEncoding.values()) {
// Off heap block data support not added for PREFIX_TREE DBE yet.
// TODO remove this once support is added. HBASE-12298
if (this.useOffheapData && encoding == DataBlockEncoding.PREFIX_TREE) continue;
if (encoding.getEncoder() == null) {
continue;
}
DataBlockEncoder encoder = encoding.getEncoder();
ByteBuffer encodedBuffer =
encodeKeyValues(
encoding,
sampleKv,
getEncodingContext(Compression.Algorithm.NONE, encoding),
this.useOffheapData);
HFileContext meta =
new HFileContextBuilder()
.withHBaseCheckSum(false)
.withIncludesMvcc(includesMemstoreTS)
.withIncludesTags(includesTags)
.withCompression(Compression.Algorithm.NONE)
.build();
DataBlockEncoder.EncodedSeeker seeker =
encoder.createSeeker(
CellComparator.COMPARATOR, encoder.newDataBlockDecodingContext(meta));
seeker.setCurrentBuffer(new SingleByteBuff(encodedBuffer));
int i = 0;
do {
KeyValue expectedKeyValue = sampleKv.get(i);
Cell cell = seeker.getCell();
if (CellComparator.COMPARATOR.compareKeyIgnoresMvcc(expectedKeyValue, cell) != 0) {
int commonPrefix =
CellUtil.findCommonPrefixInFlatKey(expectedKeyValue, cell, false, true);
fail(
String.format(
"next() produces wrong results "
+ "encoder: %s i: %d commonPrefix: %d"
+ "\n expected %s\n actual %s",
encoder.toString(),
i,
commonPrefix,
Bytes.toStringBinary(
expectedKeyValue.getBuffer(),
expectedKeyValue.getKeyOffset(),
expectedKeyValue.getKeyLength()),
CellUtil.toString(cell, false)));
}
i++;
} while (seeker.next());
}
}
/** Test seeking while file is encoded. */
@Test
public void testSeekingOnSample() throws IOException {
List<KeyValue> sampleKv = generator.generateTestKeyValues(NUMBER_OF_KV, includesTags);
// create all seekers
List<DataBlockEncoder.EncodedSeeker> encodedSeekers =
new ArrayList<DataBlockEncoder.EncodedSeeker>();
for (DataBlockEncoding encoding : DataBlockEncoding.values()) {
LOG.info("Encoding: " + encoding);
// Off heap block data support not added for PREFIX_TREE DBE yet.
// TODO remove this once support is added. HBASE-12298
if (this.useOffheapData && encoding == DataBlockEncoding.PREFIX_TREE) continue;
DataBlockEncoder encoder = encoding.getEncoder();
if (encoder == null) {
continue;
}
LOG.info("Encoder: " + encoder);
ByteBuffer encodedBuffer =
encodeKeyValues(
encoding,
sampleKv,
getEncodingContext(Compression.Algorithm.NONE, encoding),
this.useOffheapData);
HFileContext meta =
new HFileContextBuilder()
.withHBaseCheckSum(false)
.withIncludesMvcc(includesMemstoreTS)
.withIncludesTags(includesTags)
.withCompression(Compression.Algorithm.NONE)
.build();
DataBlockEncoder.EncodedSeeker seeker =
encoder.createSeeker(
CellComparator.COMPARATOR, encoder.newDataBlockDecodingContext(meta));
seeker.setCurrentBuffer(new SingleByteBuff(encodedBuffer));
encodedSeekers.add(seeker);
}
LOG.info("Testing it!");
// test it!
// try a few random seeks
for (boolean seekBefore : new boolean[] {false, true}) {
for (int i = 0; i < NUM_RANDOM_SEEKS; ++i) {
int keyValueId;
if (!seekBefore) {
keyValueId = randomizer.nextInt(sampleKv.size());
} else {
keyValueId = randomizer.nextInt(sampleKv.size() - 1) + 1;
}
KeyValue keyValue = sampleKv.get(keyValueId);
checkSeekingConsistency(encodedSeekers, seekBefore, keyValue);
}
}
// check edge cases
LOG.info("Checking edge cases");
checkSeekingConsistency(encodedSeekers, false, sampleKv.get(0));
for (boolean seekBefore : new boolean[] {false, true}) {
checkSeekingConsistency(encodedSeekers, seekBefore, sampleKv.get(sampleKv.size() - 1));
KeyValue midKv = sampleKv.get(sampleKv.size() / 2);
Cell lastMidKv = CellUtil.createLastOnRowCol(midKv);
checkSeekingConsistency(encodedSeekers, seekBefore, lastMidKv);
}
LOG.info("Done");
}
/**
* Test whether compression -> decompression gives the consistent results on pseudorandom sample.
*
* @throws IOException On test failure.
*/
@Test
public void testExecutionOnSample() throws IOException {
List<KeyValue> kvList = generator.generateTestKeyValues(NUMBER_OF_KV, includesTags);
testEncodersOnDataset(kvList, includesMemstoreTS, includesTags);
}
@Test(timeout = 6000000)
public void testHFileEncryption() throws Exception {
// Create 1000 random test KVs
RedundantKVGenerator generator = new RedundantKVGenerator();
List<KeyValue> testKvs = generator.generateTestKeyValues(1000);
// Iterate through data block encoding and compression combinations
Configuration conf = TEST_UTIL.getConfiguration();
CacheConfig cacheConf = new CacheConfig(conf);
for (DataBlockEncoding encoding : DataBlockEncoding.values()) {
for (Compression.Algorithm compression : TestHFileBlock.COMPRESSION_ALGORITHMS) {
HFileContext fileContext =
new HFileContextBuilder()
.withBlockSize(4096) // small blocks
.withEncryptionContext(cryptoContext)
.withCompression(compression)
.withDataBlockEncoding(encoding)
.build();
// write a new test HFile
LOG.info("Writing with " + fileContext);
Path path = new Path(TEST_UTIL.getDataTestDir(), UUID.randomUUID().toString() + ".hfile");
FSDataOutputStream out = fs.create(path);
HFile.Writer writer =
HFile.getWriterFactory(conf, cacheConf)
.withOutputStream(out)
.withFileContext(fileContext)
.create();
try {
for (KeyValue kv : testKvs) {
writer.append(kv);
}
} finally {
writer.close();
out.close();
}
// read it back in
LOG.info("Reading with " + fileContext);
int i = 0;
HFileScanner scanner = null;
HFile.Reader reader = HFile.createReader(fs, path, cacheConf, conf);
try {
reader.loadFileInfo();
FixedFileTrailer trailer = reader.getTrailer();
assertNotNull(trailer.getEncryptionKey());
scanner = reader.getScanner(false, false);
assertTrue("Initial seekTo failed", scanner.seekTo());
do {
Cell kv = scanner.getCell();
assertTrue(
"Read back an unexpected or invalid KV",
testKvs.contains(KeyValueUtil.ensureKeyValue(kv)));
i++;
} while (scanner.next());
} finally {
reader.close();
scanner.close();
}
assertEquals("Did not read back as many KVs as written", i, testKvs.size());
// Test random seeks with pread
LOG.info("Random seeking with " + fileContext);
reader = HFile.createReader(fs, path, cacheConf, conf);
try {
scanner = reader.getScanner(false, true);
assertTrue("Initial seekTo failed", scanner.seekTo());
for (i = 0; i < 100; i++) {
KeyValue kv = testKvs.get(RNG.nextInt(testKvs.size()));
assertEquals("Unable to find KV as expected: " + kv, scanner.seekTo(kv), 0);
}
} finally {
scanner.close();
reader.close();
}
}
}
}
