Java Code Examples for org.apache.hadoop.hbase.io.util.LRUDictionary

The following examples show how to use org.apache.hadoop.hbase.io.util.LRUDictionary. These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: hbase   Source File: ReaderBase.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public void init(FileSystem fs, Path path, Configuration conf, FSDataInputStream stream)
    throws IOException {
  this.conf = conf;
  this.path = path;
  this.fs = fs;
  this.fileLength = this.fs.getFileStatus(path).getLen();
  String cellCodecClsName = initReader(stream);

  boolean compression = hasCompression();
  if (compression) {
    // If compression is enabled, new dictionaries are created here.
    try {
      if (compressionContext == null) {
        compressionContext = new CompressionContext(LRUDictionary.class,
          CommonFSUtils.isRecoveredEdits(path), hasTagCompression());
      } else {
        compressionContext.clear();
      }
    } catch (Exception e) {
      throw new IOException("Failed to initialize CompressionContext", e);
    }
  }
  initAfterCompression(cellCodecClsName);
}
 
Example 2
Source Project: hbase   Source File: TestTagCompressionContext.java    License: Apache License 2.0 6 votes vote down vote up
@Test
public void testCompressUncompressTags1() throws Exception {
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  TagCompressionContext context = new TagCompressionContext(LRUDictionary.class, Byte.MAX_VALUE);
  KeyValue kv1 = createKVWithTags(2);
  int tagsLength1 = kv1.getTagsLength();
  ByteBuffer ib = ByteBuffer.wrap(kv1.getTagsArray());
  context.compressTags(baos, ib, kv1.getTagsOffset(), tagsLength1);
  KeyValue kv2 = createKVWithTags(3);
  int tagsLength2 = kv2.getTagsLength();
  ib = ByteBuffer.wrap(kv2.getTagsArray());
  context.compressTags(baos, ib, kv2.getTagsOffset(), tagsLength2);

  context.clear();

  byte[] dest = new byte[tagsLength1];
  ByteBuffer ob = ByteBuffer.wrap(baos.toByteArray());
  context.uncompressTags(new SingleByteBuff(ob), dest, 0, tagsLength1);
  assertTrue(Bytes.equals(kv1.getTagsArray(), kv1.getTagsOffset(), tagsLength1, dest, 0,
      tagsLength1));
  dest = new byte[tagsLength2];
  context.uncompressTags(new SingleByteBuff(ob), dest, 0, tagsLength2);
  assertTrue(Bytes.equals(kv2.getTagsArray(), kv2.getTagsOffset(), tagsLength2, dest, 0,
      tagsLength2));
}
 
Example 3
Source Project: hbase   Source File: TestTagCompressionContext.java    License: Apache License 2.0 6 votes vote down vote up
@Test
public void testCompressUncompressTagsWithOffheapKeyValue1() throws Exception {
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  DataOutputStream daos = new ByteBufferWriterDataOutputStream(baos);
  TagCompressionContext context = new TagCompressionContext(LRUDictionary.class, Byte.MAX_VALUE);
  ByteBufferExtendedCell kv1 = (ByteBufferExtendedCell)createOffheapKVWithTags(2);
  int tagsLength1 = kv1.getTagsLength();
  context.compressTags(daos, kv1.getTagsByteBuffer(), kv1.getTagsPosition(), tagsLength1);
  ByteBufferExtendedCell kv2 = (ByteBufferExtendedCell)createOffheapKVWithTags(3);
  int tagsLength2 = kv2.getTagsLength();
  context.compressTags(daos, kv2.getTagsByteBuffer(), kv2.getTagsPosition(), tagsLength2);

  context.clear();

  byte[] dest = new byte[tagsLength1];
  ByteBuffer ob = ByteBuffer.wrap(baos.getBuffer());
  context.uncompressTags(new SingleByteBuff(ob), dest, 0, tagsLength1);
  assertTrue(Bytes.equals(kv1.getTagsArray(), kv1.getTagsOffset(), tagsLength1, dest, 0,
      tagsLength1));
  dest = new byte[tagsLength2];
  context.uncompressTags(new SingleByteBuff(ob), dest, 0, tagsLength2);
  assertTrue(Bytes.equals(kv2.getTagsArray(), kv2.getTagsOffset(), tagsLength2, dest, 0,
      tagsLength2));
}
 
Example 4
Source Project: hbase   Source File: TestTagCompressionContext.java    License: Apache License 2.0 6 votes vote down vote up
@Test
public void testCompressUncompressTags2() throws Exception {
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  TagCompressionContext context = new TagCompressionContext(LRUDictionary.class, Byte.MAX_VALUE);
  KeyValue kv1 = createKVWithTags(1);
  int tagsLength1 = kv1.getTagsLength();
  context.compressTags(baos, kv1.getTagsArray(), kv1.getTagsOffset(), tagsLength1);
  KeyValue kv2 = createKVWithTags(3);
  int tagsLength2 = kv2.getTagsLength();
  context.compressTags(baos, kv2.getTagsArray(), kv2.getTagsOffset(), tagsLength2);

  context.clear();

  ByteArrayInputStream bais = new ByteArrayInputStream(baos.getBuffer());
  byte[] dest = new byte[tagsLength1];
  context.uncompressTags(bais, dest, 0, tagsLength1);
  assertTrue(Bytes.equals(kv1.getTagsArray(), kv1.getTagsOffset(), tagsLength1, dest, 0,
      tagsLength1));
  dest = new byte[tagsLength2];
  context.uncompressTags(bais, dest, 0, tagsLength2);
  assertTrue(Bytes.equals(kv2.getTagsArray(), kv2.getTagsOffset(), tagsLength2, dest, 0,
      tagsLength2));
}
 
Example 5
Source Project: hbase   Source File: TestTagCompressionContext.java    License: Apache License 2.0 6 votes vote down vote up
@Test
public void testCompressUncompressTagsWithOffheapKeyValue2() throws Exception {
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  DataOutputStream daos = new ByteBufferWriterDataOutputStream(baos);
  TagCompressionContext context = new TagCompressionContext(LRUDictionary.class, Byte.MAX_VALUE);
  ByteBufferExtendedCell kv1 = (ByteBufferExtendedCell)createOffheapKVWithTags(1);
  int tagsLength1 = kv1.getTagsLength();
  context.compressTags(daos, kv1.getTagsByteBuffer(), kv1.getTagsPosition(), tagsLength1);
  ByteBufferExtendedCell kv2 = (ByteBufferExtendedCell)createOffheapKVWithTags(3);
  int tagsLength2 = kv2.getTagsLength();
  context.compressTags(daos, kv2.getTagsByteBuffer(), kv2.getTagsPosition(), tagsLength2);

  context.clear();

  ByteArrayInputStream bais = new ByteArrayInputStream(baos.getBuffer());
  byte[] dest = new byte[tagsLength1];
  context.uncompressTags(bais, dest, 0, tagsLength1);
  assertTrue(Bytes.equals(kv1.getTagsArray(), kv1.getTagsOffset(), tagsLength1, dest, 0,
      tagsLength1));
  dest = new byte[tagsLength2];
  context.uncompressTags(bais, dest, 0, tagsLength2);
  assertTrue(Bytes.equals(kv2.getTagsArray(), kv2.getTagsOffset(), tagsLength2, dest, 0,
      tagsLength2));
}
 
Example 6
Source Project: phoenix   Source File: ReadWriteKeyValuesWithCodecIT.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testWithCompression() throws Exception {
  // get the FS ready to read/write the edit
  Path testDir = UTIL.getDataTestDir("TestReadWriteCustomEdits_withCompression");
  Path testFile = new Path(testDir, "testfile");
  FileSystem fs = UTIL.getTestFileSystem();

  List<WALEdit> edits = getEdits();
  CompressionContext compression = new CompressionContext(LRUDictionary.class, false, false);
  writeReadAndVerify(compression, fs, edits, testFile);
}
 
Example 7
Source Project: hbase   Source File: AbstractProtobufLogWriter.java    License: Apache License 2.0 5 votes vote down vote up
private boolean initializeCompressionContext(Configuration conf, Path path) throws IOException {
  boolean doCompress = conf.getBoolean(HConstants.ENABLE_WAL_COMPRESSION, false);
  if (doCompress) {
    try {
      this.compressionContext =
        new CompressionContext(LRUDictionary.class, CommonFSUtils.isRecoveredEdits(path),
          conf.getBoolean(CompressionContext.ENABLE_WAL_TAGS_COMPRESSION, true));
    } catch (Exception e) {
      throw new IOException("Failed to initiate CompressionContext", e);
    }
  }
  return doCompress;
}
 
Example 8
Source Project: hbase   Source File: BufferedDataBlockEncoder.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public ByteBuffer decodeKeyValues(DataInputStream source,
    HFileBlockDecodingContext blkDecodingCtx) throws IOException {
  if (blkDecodingCtx.getClass() != HFileBlockDefaultDecodingContext.class) {
    throw new IOException(this.getClass().getName() + " only accepts "
        + HFileBlockDefaultDecodingContext.class.getName() + " as the decoding context.");
  }

  HFileBlockDefaultDecodingContext decodingCtx =
      (HFileBlockDefaultDecodingContext) blkDecodingCtx;
  if (decodingCtx.getHFileContext().isIncludesTags()
      && decodingCtx.getHFileContext().isCompressTags()) {
    if (decodingCtx.getTagCompressionContext() != null) {
      // It will be overhead to create the TagCompressionContext again and again for every block
      // decoding.
      decodingCtx.getTagCompressionContext().clear();
    } else {
      try {
        TagCompressionContext tagCompressionContext = new TagCompressionContext(
            LRUDictionary.class, Byte.MAX_VALUE);
        decodingCtx.setTagCompressionContext(tagCompressionContext);
      } catch (Exception e) {
        throw new IOException("Failed to initialize TagCompressionContext", e);
      }
    }
  }
  return internalDecodeKeyValues(source, 0, 0, decodingCtx);
}
 
Example 9
Source Project: hbase   Source File: BufferedDataBlockEncoder.java    License: Apache License 2.0 5 votes vote down vote up
public BufferedEncodedSeeker(HFileBlockDecodingContext decodingCtx) {
  super(decodingCtx);
  if (decodingCtx.getHFileContext().isCompressTags()) {
    try {
      tagCompressionContext = new TagCompressionContext(LRUDictionary.class, Byte.MAX_VALUE);
    } catch (Exception e) {
      throw new RuntimeException("Failed to initialize TagCompressionContext", e);
    }
  }
  current = createSeekerState(); // always valid
  previous = createSeekerState(); // may not be valid
}
 
Example 10
Source Project: hbase   Source File: BufferedDataBlockEncoder.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public void startBlockEncoding(HFileBlockEncodingContext blkEncodingCtx, DataOutputStream out)
    throws IOException {
  if (blkEncodingCtx.getClass() != HFileBlockDefaultEncodingContext.class) {
    throw new IOException(this.getClass().getName() + " only accepts "
        + HFileBlockDefaultEncodingContext.class.getName() + " as the " +
        "encoding context.");
  }

  HFileBlockDefaultEncodingContext encodingCtx =
      (HFileBlockDefaultEncodingContext) blkEncodingCtx;
  encodingCtx.prepareEncoding(out);
  if (encodingCtx.getHFileContext().isIncludesTags()
      && encodingCtx.getHFileContext().isCompressTags()) {
    if (encodingCtx.getTagCompressionContext() != null) {
      // It will be overhead to create the TagCompressionContext again and again for every block
      // encoding.
      encodingCtx.getTagCompressionContext().clear();
    } else {
      try {
        TagCompressionContext tagCompressionContext = new TagCompressionContext(
            LRUDictionary.class, Byte.MAX_VALUE);
        encodingCtx.setTagCompressionContext(tagCompressionContext);
      } catch (Exception e) {
        throw new IOException("Failed to initialize TagCompressionContext", e);
      }
    }
  }
  StreamUtils.writeInt(out, 0); // DUMMY length. This will be updated in endBlockEncoding()
  blkEncodingCtx.setEncodingState(new EncodingState());
}
 
Example 11
Source Project: phoenix   Source File: IndexedWALEditCodecTest.java    License: Apache License 2.0 5 votes vote down vote up
@SuppressWarnings("unused")
@Test
public void testConstructorsArePresent() throws Exception {
    // "testing" via the presence of these constructors
    IndexedWALEditCodec codec1 = new IndexedWALEditCodec();
    IndexedWALEditCodec codec2 = new IndexedWALEditCodec(new Configuration(false), new CompressionContext(LRUDictionary.class, false, false));
}
 
Example 12
Source Project: phoenix   Source File: ReadWriteKeyValuesWithCodecTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testWithCompression() throws Exception {
  // get the FS ready to read/write the edit
  Path testDir = UTIL.getDataTestDir("TestReadWriteCustomEdits_withCompression");
  Path testFile = new Path(testDir, "testfile");
  FileSystem fs = UTIL.getTestFileSystem();

  List<WALEdit> edits = getEdits();
  CompressionContext compression = new CompressionContext(LRUDictionary.class, false, false);
  writeReadAndVerify(compression, fs, edits, testFile);
}