Examples of org.apache.hadoop.hbase.io.hfile.Cacheable

Package org.apache.hadoop.hbase.io.hfile

Examples of org.apache.hadoop.hbase.io.hfile.Cacheable

org.apache.hadoop.hbase.io.hfile.Cacheable
Cacheable is an interface that allows for an object to be cached. If using an on heap cache, just use heapsize. If using an off heap cache, Cacheable provides methods for serialization of the object. Some objects cannot be moved off heap, those objects will return a getSerializedLength() of 0.

        lockEntry = offsetLock.getLockEntry(bucketEntry.offset());
        if (bucketEntry.equals(backingMap.get(key))) {
          int len = bucketEntry.getLength();
          ByteBuffer bb = ByteBuffer.allocate(len);
          ioEngine.read(bb, bucketEntry.offset());
          Cacheable cachedBlock = bucketEntry.deserializerReference(
              deserialiserMap).deserialize(bb, true);
          long timeTaken = System.nanoTime() - start;
          cacheStats.hit(caching);
          cacheStats.ioHit(timeTaken);
          bucketEntry.access(accessCount.incrementAndGet());

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        lockEntry = offsetLock.getLockEntry(bucketEntry.offset());
        if (bucketEntry.equals(backingMap.get(key))) {
          int len = bucketEntry.getLength();
          ByteBuffer bb = ByteBuffer.allocate(len);
          ioEngine.read(bb, bucketEntry.offset());
          Cacheable cachedBlock = bucketEntry.deserializerReference(
              deserialiserMap).deserialize(bb, true);
          long timeTaken = System.nanoTime() - start;
          cacheStats.hit(caching);
          cacheStats.ioHit(timeTaken);
          bucketEntry.access(accessCount.incrementAndGet());

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    if (cachedBlock == null) {
      if (!repeat) stats.miss(caching);
      return null;
    }


    Cacheable contentBlock = cachedBlock.getBlock(key, caching, false);


    if (contentBlock != null) {
      stats.hit(caching);
    } else {
      if (!repeat) stats.miss(caching);

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        lockEntry = offsetLock.getLockEntry(bucketEntry.offset());
        if (bucketEntry.equals(backingMap.get(key))) {
          int len = bucketEntry.getLength();
          ByteBuffer bb = ByteBuffer.allocate(len);
          ioEngine.read(bb, bucketEntry.offset());
          Cacheable cachedBlock = bucketEntry.deserializerReference(
              deserialiserMap).deserialize(bb, true);
          long timeTaken = System.nanoTime() - start;
          cacheStats.hit(caching);
          cacheStats.ioHit(timeTaken);
          bucketEntry.access(accessCount.incrementAndGet());

View Full Code Here

        lockEntry = offsetLock.getLockEntry(bucketEntry.offset());
        if (bucketEntry.equals(backingMap.get(key))) {
          int len = bucketEntry.getLength();
          ByteBuffer bb = ByteBuffer.allocate(len);
          ioEngine.read(bb, bucketEntry.offset());
          Cacheable cachedBlock = bucketEntry.deserializerReference(
              deserialiserMap).deserialize(bb, true);
          long timeTaken = System.nanoTime() - start;
          cacheStats.hit(caching);
          cacheStats.ioHit(timeTaken);
          bucketEntry.access(accessCount.incrementAndGet());

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    if (cachedBlock == null) {
      stats.miss(caching);
      return null;
    }


    Cacheable contentBlock = cachedBlock.getBlock(key, caching);


    if (contentBlock != null) {
      stats.hit(caching);
    } else {
      stats.miss(caching);

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    if (cachedBlock == null) {
      if (!repeat) stats.miss(caching);
      return null;
    }


    Cacheable contentBlock = cachedBlock.getBlock(key, caching, false);


    if (contentBlock != null) {
      stats.hit(caching);
    } else if (!repeat) {
      stats.miss(caching);

View Full Code Here

        lockEntry = offsetLock.getLockEntry(bucketEntry.offset());
        if (bucketEntry.equals(backingMap.get(key))) {
          int len = bucketEntry.getLength();
          ByteBuffer bb = ByteBuffer.allocate(len);
          ioEngine.read(bb, bucketEntry.offset());
          Cacheable cachedBlock = bucketEntry.deserializerReference(
              deserialiserMap).deserialize(bb, true);
          long timeTaken = System.nanoTime() - start;
          cacheStats.hit(caching);
          cacheStats.ioHit(timeTaken);
          bucketEntry.access(accessCount.incrementAndGet());

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          ByteBuffer bb = ByteBuffer.allocate(len);
          int lenRead = ioEngine.read(bb, bucketEntry.offset());
          if (lenRead != len) {
            throw new RuntimeException("Only " + lenRead + " bytes read, " + len + " expected");
          }
          Cacheable cachedBlock = bucketEntry.deserializerReference(
              deserialiserMap).deserialize(bb, true);
          long timeTaken = System.nanoTime() - start;
          if (updateCacheMetrics) {
            cacheStats.hit(caching);
            cacheStats.ioHit(timeTaken);

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    if (cachedBlock == null) {
      if (!repeat) stats.miss(caching);
      return null;
    }


    Cacheable contentBlock = cachedBlock.getBlock(key, caching, false, updateCacheMetrics);


    if (contentBlock != null) {
      if (updateCacheMetrics) stats.hit(caching);
    } else if (!repeat) {
      if (updateCacheMetrics) stats.miss(caching);

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Related Classes of org.apache.hadoop.hbase.io.hfile.Cacheable

org.apache.hadoop.hbase.io.hfile.bucket.BucketCache

org.apache.hadoop.hbase.io.hfile.bucket.TestBucketWriterThread

org.apache.hadoop.hbase.io.hfile.slab.SlabCache

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