Package org.apache.hadoop.dfs.DataNode

Examples of org.apache.hadoop.dfs.DataNode.BlockSender

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    throttler.setBandwidth(Math.min(bw, MAX_SCAN_RATE));
  }
 
  private void verifyBlock(Block block) {
   
    BlockSender blockSender = null;

    /* In case of failure, attempt to read second time to reduce
     * transient errors. How do we flush block data from kernel
     * buffers before the second read?
     */
    for (int i=0; i<2; i++) {
      boolean second = (i > 0);
     
      try {
        adjustThrottler();
       
        blockSender = datanode.new BlockSender(block, 0, -1, false,
                                               false, true);

        DataOutputStream out =
                new DataOutputStream(new IOUtils.NullOutputStream());
       
        blockSender.sendBlock(out, throttler);

        LOG.info((second ? "Second " : "") +
                 "Verification succeeded for " + block);
       
        if ( second ) {
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    throttler.setBandwidth(Math.min(bw, MAX_SCAN_RATE));
  }
 
  private void verifyBlock(Block block) {
   
    BlockSender blockSender = null;

    /* In case of failure, attempt to read second time to reduce
     * transient errors. How do we flush block data from kernel
     * buffers before the second read?
     */
    for (int i=0; i<2; i++) {
      boolean second = (i > 0);
     
      try {
        adjustThrottler();
       
        blockSender = datanode.new BlockSender(block, 0, -1, false,
                                               false, true);

        DataOutputStream out =
                new DataOutputStream(new IOUtils.NullOutputStream());
       
        blockSender.sendBlock(out, null, throttler);

        LOG.info((second ? "Second " : "") +
                 "Verification succeeded for " + block);
       
        if ( second ) {
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    throttler.setBandwidth(Math.min(bw, MAX_SCAN_RATE));
  }
 
  private void verifyBlock(Block block) {
   
    BlockSender blockSender = null;

    /* In case of failure, attempt to read second time to reduce
     * transient errors. How do we flush block data from kernel
     * buffers before the second read?
     */
    for (int i=0; i<2; i++) {
      boolean second = (i > 0);
     
      try {
        adjustThrottler();
       
        blockSender = datanode.new BlockSender(block, 0, -1, false,
                                               false, true);

        DataOutputStream out =
                new DataOutputStream(new IOUtils.NullOutputStream());
       
        blockSender.sendBlock(out, throttler);

        LOG.info((second ? "Second " : "") +
                 "Verification succeeded for " + block);
       
        if ( second ) {
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Related Classes of org.apache.hadoop.dfs.DataNode.BlockSender

  • org.apache.hadoop.dfs.DataBlockScanner
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