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From jl...@apache.org
Subject [1/2] hadoop git commit: HADOOP-13578. Add Codec for ZStandard Compression. Contributed by churro morales
Date Wed, 04 Jan 2017 16:20:36 GMT
Repository: hadoop
Updated Branches:
  refs/heads/branch-2 320776219 -> db947fb87


http://git-wip-us.apache.org/repos/asf/hadoop/blob/db947fb8/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/compress/zstd/TestZStandardCompressorDecompressor.java
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/compress/zstd/TestZStandardCompressorDecompressor.java
b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/compress/zstd/TestZStandardCompressorDecompressor.java
new file mode 100644
index 0000000..04def24
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/compress/zstd/TestZStandardCompressorDecompressor.java
@@ -0,0 +1,485 @@
+/**
+ * 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.io.compress.zstd;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.IOUtils;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.io.DataInputBuffer;
+import org.apache.hadoop.io.DataOutputBuffer;
+import org.apache.hadoop.io.compress.CompressionInputStream;
+import org.apache.hadoop.io.compress.CompressionOutputStream;
+import org.apache.hadoop.io.compress.Compressor;
+import org.apache.hadoop.io.compress.CompressorStream;
+import org.apache.hadoop.io.compress.Decompressor;
+import org.apache.hadoop.io.compress.DecompressorStream;
+import org.apache.hadoop.io.compress.ZStandardCodec;
+import org.apache.hadoop.test.MultithreadedTestUtil;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.util.Random;
+
+import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_DEFAULT;
+import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_KEY;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assume.assumeTrue;
+
+public class TestZStandardCompressorDecompressor {
+  private final static char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
+  private static final Random RANDOM = new Random(12345L);
+  private static final Configuration CONFIGURATION = new Configuration();
+  private static File compressedFile;
+  private static File uncompressedFile;
+
+  @BeforeClass
+  public static void beforeClass() throws Exception {
+    CONFIGURATION.setInt(IO_FILE_BUFFER_SIZE_KEY, 1024 * 64);
+    uncompressedFile = new File(TestZStandardCompressorDecompressor.class
+        .getResource("/zstd/test_file.txt").toURI());
+    compressedFile = new File(TestZStandardCompressorDecompressor.class
+        .getResource("/zstd/test_file.txt.zst").toURI());
+  }
+
+  @Before
+  public void before() throws Exception {
+    assumeTrue(ZStandardCodec.isNativeCodeLoaded());
+  }
+
+  @Test
+  public void testCompressionCompressesCorrectly() throws Exception {
+    int uncompressedSize = (int) FileUtils.sizeOf(uncompressedFile);
+    byte[] bytes = FileUtils.readFileToByteArray(uncompressedFile);
+    assertEquals(uncompressedSize, bytes.length);
+
+    Configuration conf = new Configuration();
+    ZStandardCodec codec = new ZStandardCodec();
+    codec.setConf(conf);
+
+    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+    Compressor compressor = codec.createCompressor();
+    CompressionOutputStream outputStream =
+        codec.createOutputStream(baos, compressor);
+
+    for (byte aByte : bytes) {
+      outputStream.write(aByte);
+    }
+
+    outputStream.finish();
+    outputStream.close();
+    assertEquals(uncompressedSize, compressor.getBytesRead());
+    assertTrue(compressor.finished());
+
+    // just make sure we can decompress the file
+
+    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
+    Decompressor decompressor = codec.createDecompressor();
+    CompressionInputStream inputStream =
+        codec.createInputStream(bais, decompressor);
+    byte[] buffer = new byte[100];
+    int n = buffer.length;
+    while ((n = inputStream.read(buffer, 0, n)) != -1) {
+      byteArrayOutputStream.write(buffer, 0, n);
+    }
+    assertArrayEquals(bytes, byteArrayOutputStream.toByteArray());
+  }
+
+  @Test(expected = NullPointerException.class)
+  public void testCompressorSetInputNullPointerException() {
+    ZStandardCompressor compressor = new ZStandardCompressor();
+    compressor.setInput(null, 0, 10);
+  }
+
+  //test on NullPointerException in {@code decompressor.setInput()}
+  @Test(expected = NullPointerException.class)
+  public void testDecompressorSetInputNullPointerException() {
+    ZStandardDecompressor decompressor =
+        new ZStandardDecompressor(IO_FILE_BUFFER_SIZE_DEFAULT);
+    decompressor.setInput(null, 0, 10);
+  }
+
+  //test on ArrayIndexOutOfBoundsException in {@code compressor.setInput()}
+  @Test(expected = ArrayIndexOutOfBoundsException.class)
+  public void testCompressorSetInputAIOBException() {
+    ZStandardCompressor compressor = new ZStandardCompressor();
+    compressor.setInput(new byte[] {}, -5, 10);
+  }
+
+  //test on ArrayIndexOutOfBoundsException in {@code decompressor.setInput()}
+  @Test(expected = ArrayIndexOutOfBoundsException.class)
+  public void testDecompressorSetInputAIOUBException() {
+    ZStandardDecompressor decompressor =
+        new ZStandardDecompressor(IO_FILE_BUFFER_SIZE_DEFAULT);
+    decompressor.setInput(new byte[] {}, -5, 10);
+  }
+
+  //test on NullPointerException in {@code compressor.compress()}
+  @Test(expected = NullPointerException.class)
+  public void testCompressorCompressNullPointerException() throws Exception {
+    ZStandardCompressor compressor = new ZStandardCompressor();
+    byte[] bytes = generate(1024 * 6);
+    compressor.setInput(bytes, 0, bytes.length);
+    compressor.compress(null, 0, 0);
+  }
+
+  //test on NullPointerException in {@code decompressor.decompress()}
+  @Test(expected = NullPointerException.class)
+  public void testDecompressorCompressNullPointerException() throws Exception {
+    ZStandardDecompressor decompressor =
+        new ZStandardDecompressor(IO_FILE_BUFFER_SIZE_DEFAULT);
+    byte[] bytes = generate(1024 * 6);
+    decompressor.setInput(bytes, 0, bytes.length);
+    decompressor.decompress(null, 0, 0);
+  }
+
+  //test on ArrayIndexOutOfBoundsException in {@code compressor.compress()}
+  @Test(expected = ArrayIndexOutOfBoundsException.class)
+  public void testCompressorCompressAIOBException() throws Exception {
+    ZStandardCompressor compressor = new ZStandardCompressor();
+    byte[] bytes = generate(1024 * 6);
+    compressor.setInput(bytes, 0, bytes.length);
+    compressor.compress(new byte[] {}, 0, -1);
+  }
+
+  //test on ArrayIndexOutOfBoundsException in decompressor.decompress()
+  @Test(expected = ArrayIndexOutOfBoundsException.class)
+  public void testDecompressorCompressAIOBException() throws Exception {
+    ZStandardDecompressor decompressor =
+        new ZStandardDecompressor(IO_FILE_BUFFER_SIZE_DEFAULT);
+    byte[] bytes = generate(1024 * 6);
+    decompressor.setInput(bytes, 0, bytes.length);
+    decompressor.decompress(new byte[] {}, 0, -1);
+  }
+
+  // test ZStandardCompressor compressor.compress()
+  @Test
+  public void testSetInputWithBytesSizeMoreThenDefaultZStandardBufferSize()
+      throws Exception {
+    int bytesSize = 1024 * 2056 + 1;
+    ZStandardCompressor compressor = new ZStandardCompressor();
+    byte[] bytes = generate(bytesSize);
+    assertTrue("needsInput error !!!", compressor.needsInput());
+    compressor.setInput(bytes, 0, bytes.length);
+    byte[] emptyBytes = new byte[bytesSize];
+    int cSize = compressor.compress(emptyBytes, 0, bytes.length);
+    assertTrue(cSize > 0);
+  }
+
+  // test compress/decompress process through
+  // CompressionOutputStream/CompressionInputStream api
+  @Test
+  public void testCompressorDecompressorLogicWithCompressionStreams()
+      throws Exception {
+    DataOutputStream deflateOut = null;
+    DataInputStream inflateIn = null;
+    int byteSize = 1024 * 100;
+    byte[] bytes = generate(byteSize);
+    int bufferSize = IO_FILE_BUFFER_SIZE_DEFAULT;
+    try {
+      DataOutputBuffer compressedDataBuffer = new DataOutputBuffer();
+      CompressionOutputStream deflateFilter =
+          new CompressorStream(compressedDataBuffer, new ZStandardCompressor(),
+              bufferSize);
+      deflateOut =
+          new DataOutputStream(new BufferedOutputStream(deflateFilter));
+      deflateOut.write(bytes, 0, bytes.length);
+      deflateOut.flush();
+      deflateFilter.finish();
+
+      DataInputBuffer deCompressedDataBuffer = new DataInputBuffer();
+      deCompressedDataBuffer.reset(compressedDataBuffer.getData(), 0,
+          compressedDataBuffer.getLength());
+
+      CompressionInputStream inflateFilter =
+          new DecompressorStream(deCompressedDataBuffer,
+              new ZStandardDecompressor(bufferSize), bufferSize);
+
+      inflateIn = new DataInputStream(new BufferedInputStream(inflateFilter));
+
+      byte[] result = new byte[byteSize];
+      inflateIn.read(result);
+      assertArrayEquals("original array not equals compress/decompressed array",
+          result, bytes);
+    } finally {
+      IOUtils.closeQuietly(deflateOut);
+      IOUtils.closeQuietly(inflateIn);
+    }
+  }
+
+  @Test
+  public void testZStandardCompressDecompressInMultiThreads() throws Exception {
+    MultithreadedTestUtil.TestContext ctx =
+        new MultithreadedTestUtil.TestContext();
+    for (int i = 0; i < 10; i++) {
+      ctx.addThread(new MultithreadedTestUtil.TestingThread(ctx) {
+        @Override
+        public void doWork() throws Exception {
+          testCompressDecompress();
+        }
+      });
+    }
+    ctx.startThreads();
+
+    ctx.waitFor(60000);
+  }
+
+  @Test
+  public void testCompressDecompress() throws Exception {
+    byte[] rawData;
+    int rawDataSize;
+    rawDataSize = IO_FILE_BUFFER_SIZE_DEFAULT;
+    rawData = generate(rawDataSize);
+    ZStandardCompressor compressor = new ZStandardCompressor();
+    ZStandardDecompressor decompressor =
+        new ZStandardDecompressor(IO_FILE_BUFFER_SIZE_DEFAULT);
+    assertFalse(compressor.finished());
+    compressor.setInput(rawData, 0, rawData.length);
+    assertEquals(0, compressor.getBytesRead());
+    compressor.finish();
+
+    byte[] compressedResult = new byte[rawDataSize];
+    int cSize = compressor.compress(compressedResult, 0, rawDataSize);
+    assertEquals(rawDataSize, compressor.getBytesRead());
+    assertTrue(cSize < rawDataSize);
+    decompressor.setInput(compressedResult, 0, cSize);
+    byte[] decompressedBytes = new byte[rawDataSize];
+    decompressor.decompress(decompressedBytes, 0, decompressedBytes.length);
+    assertEquals(bytesToHex(rawData), bytesToHex(decompressedBytes));
+    compressor.reset();
+    decompressor.reset();
+  }
+
+  @Test
+  public void testCompressingWithOneByteOutputBuffer() throws Exception {
+    int uncompressedSize = (int) FileUtils.sizeOf(uncompressedFile);
+    byte[] bytes = FileUtils.readFileToByteArray(uncompressedFile);
+    assertEquals(uncompressedSize, bytes.length);
+
+    Configuration conf = new Configuration();
+    ZStandardCodec codec = new ZStandardCodec();
+    codec.setConf(conf);
+
+    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+    Compressor compressor =
+        new ZStandardCompressor(3, IO_FILE_BUFFER_SIZE_DEFAULT, 1);
+    CompressionOutputStream outputStream =
+        codec.createOutputStream(baos, compressor);
+
+    for (byte aByte : bytes) {
+      outputStream.write(aByte);
+    }
+
+    outputStream.finish();
+    outputStream.close();
+    assertEquals(uncompressedSize, compressor.getBytesRead());
+    assertTrue(compressor.finished());
+
+    // just make sure we can decompress the file
+
+    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
+    Decompressor decompressor = codec.createDecompressor();
+    CompressionInputStream inputStream =
+        codec.createInputStream(bais, decompressor);
+    byte[] buffer = new byte[100];
+    int n = buffer.length;
+    while ((n = inputStream.read(buffer, 0, n)) != -1) {
+      byteArrayOutputStream.write(buffer, 0, n);
+    }
+    assertArrayEquals(bytes, byteArrayOutputStream.toByteArray());
+
+  }
+
+  @Test
+  public void testZStandardCompressDecompress() throws Exception {
+    byte[] rawData = null;
+    int rawDataSize = 0;
+    rawDataSize = IO_FILE_BUFFER_SIZE_DEFAULT;
+    rawData = generate(rawDataSize);
+    ZStandardCompressor compressor = new ZStandardCompressor();
+    ZStandardDecompressor decompressor = new ZStandardDecompressor(rawDataSize);
+    assertTrue(compressor.needsInput());
+    assertFalse("testZStandardCompressDecompress finished error",
+        compressor.finished());
+    compressor.setInput(rawData, 0, rawData.length);
+    compressor.finish();
+
+    byte[] compressedResult = new byte[rawDataSize];
+    int cSize = compressor.compress(compressedResult, 0, rawDataSize);
+    assertEquals(rawDataSize, compressor.getBytesRead());
+    assertTrue("compressed size no less then original size",
+        cSize < rawDataSize);
+    decompressor.setInput(compressedResult, 0, cSize);
+    byte[] decompressedBytes = new byte[rawDataSize];
+    decompressor.decompress(decompressedBytes, 0, decompressedBytes.length);
+    String decompressed = bytesToHex(decompressedBytes);
+    String original = bytesToHex(rawData);
+    assertEquals(original, decompressed);
+    compressor.reset();
+    decompressor.reset();
+  }
+
+  @Test
+  public void testDecompressingOutput() throws Exception {
+    byte[] expectedDecompressedResult =
+        FileUtils.readFileToByteArray(uncompressedFile);
+    ZStandardCodec codec = new ZStandardCodec();
+    codec.setConf(CONFIGURATION);
+    CompressionInputStream inputStream = codec
+        .createInputStream(FileUtils.openInputStream(compressedFile),
+            codec.createDecompressor());
+
+    byte[] toDecompress = new byte[100];
+    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+    byte[] decompressedResult;
+    int totalFileSize = 0;
+    int result = toDecompress.length;
+    try {
+      while ((result = inputStream.read(toDecompress, 0, result)) != -1) {
+        baos.write(toDecompress, 0, result);
+        totalFileSize += result;
+      }
+      decompressedResult = baos.toByteArray();
+    } finally {
+      IOUtils.closeQuietly(baos);
+    }
+
+    assertEquals(decompressedResult.length, totalFileSize);
+    assertEquals(bytesToHex(expectedDecompressedResult),
+        bytesToHex(decompressedResult));
+  }
+
+  @Test
+  public void testZStandardDirectCompressDecompress() throws Exception {
+    int[] size = {1, 4, 16, 4 * 1024, 64 * 1024, 128 * 1024, 1024 * 1024 };
+    for (int aSize : size) {
+      System.out.println("aSize = " + aSize);
+      compressDecompressLoop(aSize);
+    }
+  }
+
+  private void compressDecompressLoop(int rawDataSize) throws IOException {
+    byte[] rawData = null;
+    rawData = generate(rawDataSize);
+    ByteArrayOutputStream baos = new ByteArrayOutputStream(rawDataSize + 12);
+    CompressionOutputStream deflateFilter =
+        new CompressorStream(baos, new ZStandardCompressor(), 4096);
+    DataOutputStream deflateOut =
+        new DataOutputStream(new BufferedOutputStream(deflateFilter));
+
+    deflateOut.write(rawData, 0, rawData.length);
+    deflateOut.flush();
+    deflateFilter.finish();
+    byte[] compressedResult = baos.toByteArray();
+    int compressedSize = compressedResult.length;
+    ZStandardDecompressor.ZStandardDirectDecompressor decompressor =
+        new ZStandardDecompressor.ZStandardDirectDecompressor(4096);
+
+    ByteBuffer inBuf = ByteBuffer.allocateDirect(compressedSize);
+    ByteBuffer outBuf = ByteBuffer.allocateDirect(8096);
+
+    inBuf.put(compressedResult, 0, compressedSize);
+    inBuf.flip();
+
+    ByteBuffer expected = ByteBuffer.wrap(rawData);
+
+    outBuf.clear();
+    while (!decompressor.finished()) {
+      decompressor.decompress(inBuf, outBuf);
+      if (outBuf.remaining() == 0) {
+        outBuf.flip();
+        while (outBuf.remaining() > 0) {
+          assertEquals(expected.get(), outBuf.get());
+        }
+        outBuf.clear();
+      }
+    }
+    outBuf.flip();
+    while (outBuf.remaining() > 0) {
+      assertEquals(expected.get(), outBuf.get());
+    }
+    outBuf.clear();
+
+    assertEquals(0, expected.remaining());
+  }
+
+  @Test
+  public void testReadingWithAStream() throws Exception {
+    FileInputStream inputStream = FileUtils.openInputStream(compressedFile);
+    ZStandardCodec codec = new ZStandardCodec();
+    codec.setConf(CONFIGURATION);
+    Decompressor decompressor = codec.createDecompressor();
+    CompressionInputStream cis =
+        codec.createInputStream(inputStream, decompressor);
+    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+    byte[] resultOfDecompression;
+    try {
+      byte[] buffer = new byte[100];
+      int n;
+      while ((n = cis.read(buffer, 0, buffer.length)) != -1) {
+        baos.write(buffer, 0, n);
+      }
+      resultOfDecompression = baos.toByteArray();
+    } finally {
+      IOUtils.closeQuietly(baos);
+      IOUtils.closeQuietly(cis);
+    }
+
+    byte[] expected = FileUtils.readFileToByteArray(uncompressedFile);
+    assertEquals(bytesToHex(expected), bytesToHex(resultOfDecompression));
+  }
+
+  @Test
+  public void testDecompressReturnsWhenNothingToDecompress() throws Exception {
+    ZStandardDecompressor decompressor =
+        new ZStandardDecompressor(IO_FILE_BUFFER_SIZE_DEFAULT);
+    int result = decompressor.decompress(new byte[10], 0, 10);
+    assertEquals(0, result);
+  }
+
+  public static byte[] generate(int size) {
+    byte[] data = new byte[size];
+    for (int i = 0; i < size; i++) {
+      data[i] = (byte) RANDOM.nextInt(16);
+    }
+    return data;
+  }
+
+  private static String bytesToHex(byte[] bytes) {
+    char[] hexChars = new char[bytes.length * 2];
+    for (int j = 0; j < bytes.length; j++) {
+      int v = bytes[j] & 0xFF;
+      hexChars[j * 2] = HEX_ARRAY[v >>> 4];
+      hexChars[j * 2 + 1] = HEX_ARRAY[v & 0x0F];
+    }
+    return new String(hexChars);
+  }
+}

http://git-wip-us.apache.org/repos/asf/hadoop/blob/db947fb8/hadoop-common-project/hadoop-common/src/test/resources/zstd/test_file.txt
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/src/test/resources/zstd/test_file.txt b/hadoop-common-project/hadoop-common/src/test/resources/zstd/test_file.txt
new file mode 100644
index 0000000..60432f7
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/test/resources/zstd/test_file.txt
@@ -0,0 +1,71 @@
+/*
+ * 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.
+ */
+
+Apache License
+
+Version 2.0, January 2004
+
+http://www.apache.org/licenses/
+
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+
+You may add Your own copyright statement to Your modifications and may provide additional
or different license terms and conditions for use, reproduction, or distribution of Your modifications,
or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution
of the Work otherwise complies with the conditions stated in this License.
+5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally
submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions
of this License, without any additional terms or conditions. Notwithstanding the above, nothing
herein shall supersede or modify the terms of any separate license agreement you may have
executed with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade names, trademarks,
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use in describing the origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor
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or redistributing the Work and assume any risks associated with Your exercise of permissions
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+
+8. Limitation of Liability. In no event and under no legal theory, whether in tort (including
negligence), contract, or otherwise, unless required by applicable law (such as deliberate
and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You
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the Work (including but not limited to damages for loss of goodwill, work stoppage, computer
failure or malfunction, or any and all other commercial damages or losses), even if such Contributor
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+
+9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative
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+
+END OF TERMS AND CONDITIONS
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/hadoop/blob/db947fb8/hadoop-common-project/hadoop-common/src/test/resources/zstd/test_file.txt.zst
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/src/test/resources/zstd/test_file.txt.zst
b/hadoop-common-project/hadoop-common/src/test/resources/zstd/test_file.txt.zst
new file mode 100644
index 0000000..0384b4f
Binary files /dev/null and b/hadoop-common-project/hadoop-common/src/test/resources/zstd/test_file.txt.zst
differ

http://git-wip-us.apache.org/repos/asf/hadoop/blob/db947fb8/hadoop-project-dist/pom.xml
----------------------------------------------------------------------
diff --git a/hadoop-project-dist/pom.xml b/hadoop-project-dist/pom.xml
index 5dd31a3..9dd4b97 100644
--- a/hadoop-project-dist/pom.xml
+++ b/hadoop-project-dist/pom.xml
@@ -42,6 +42,9 @@
     <snappy.lib></snappy.lib>
     <bundle.snappy>false</bundle.snappy>
     <bundle.snappy.in.bin>false</bundle.snappy.in.bin>
+    <zstd.lib></zstd.lib>
+    <bundle.zstd>false</bundle.zstd>
+    <bundle.zstd.in.bin>false</bundle.zstd.in.bin>
     <openssl.lib></openssl.lib>
     <bundle.openssl>false</bundle.openssl>
     <bundle.openssl.in.bin>false</bundle.openssl.in.bin>
@@ -361,6 +364,9 @@
                     <argument>--snappybinbundle=${bundle.snappy.in.bin}</argument>
                     <argument>--snappylib=${snappy.lib}</argument>
                     <argument>--snappylibbundle=${bundle.snappy}</argument>
+                    <argument>--zstdbinbundle=${bundle.zstd.in.bin}</argument>
+                    <argument>--zstdlib=${zstd.lib}</argument>
+                    <argument>--zstdlibbundle=${bundle.zstd}</argument>
                   </arguments>
                 </configuration>
               </execution>

http://git-wip-us.apache.org/repos/asf/hadoop/blob/db947fb8/hadoop-project/pom.xml
----------------------------------------------------------------------
diff --git a/hadoop-project/pom.xml b/hadoop-project/pom.xml
index fce77c7..27803d9 100644
--- a/hadoop-project/pom.xml
+++ b/hadoop-project/pom.xml
@@ -1341,6 +1341,7 @@
         <!-- attempt to open a file at this path. -->
         <java.security.egd>file:/dev/urandom</java.security.egd>
         <bundle.snappy.in.bin>true</bundle.snappy.in.bin>
+        <bundle.zstd.in.bin>true</bundle.zstd.in.bin>
         <bundle.openssl.in.bin>true</bundle.openssl.in.bin>
       </properties>
       <build>
@@ -1352,6 +1353,7 @@
               <environmentVariables>
                 <!-- Specify where to look for the native DLL on Windows -->
                 <PATH>${env.PATH};${hadoop.common.build.dir}/bin;${snappy.lib}</PATH>
+                <PATH>${env.PATH};${hadoop.common.build.dir}/bin;${zstd.lib}</PATH>
                 <PATH>${env.PATH};${hadoop.common.build.dir}/bin;${openssl.lib}</PATH>
               </environmentVariables>
             </configuration>


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