Examples of BlockIdCommand

org.apache.hadoop.hdfs.server.protocol.BlockIdCommand
A BlockIdCommand is an instruction to a datanode regarding some blocks under its control.

Examples of org.apache.hadoop.hdfs.server.protocol.BlockIdCommand

      action = DatanodeProtocol.DNA_UNCACHE;
      break;
    default:
      throw new AssertionError("Unknown action type: " + blkIdCmd.getAction());
    }
    return new BlockIdCommand(action, blkIdCmd.getBlockPoolId(), blockIds);
  }

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Examples of org.apache.hadoop.hdfs.server.protocol.BlockIdCommand

   */
  private boolean processCommandFromActive(DatanodeCommand cmd,
      BPServiceActor actor) throws IOException {
    final BlockCommand bcmd = 
      cmd instanceof BlockCommand? (BlockCommand)cmd: null;
    final BlockIdCommand blockIdCmd = 
      cmd instanceof BlockIdCommand ? (BlockIdCommand)cmd: null;


    switch(cmd.getAction()) {
    case DatanodeProtocol.DNA_TRANSFER:
      // Send a copy of a block to another datanode
      dn.transferBlocks(bcmd.getBlockPoolId(), bcmd.getBlocks(), bcmd.getTargets());
      dn.metrics.incrBlocksReplicated(bcmd.getBlocks().length);
      break;
    case DatanodeProtocol.DNA_INVALIDATE:
      //
      // Some local block(s) are obsolete and can be 
      // safely garbage-collected.
      //
      Block toDelete[] = bcmd.getBlocks();
      try {
        if (dn.blockScanner != null) {
          dn.blockScanner.deleteBlocks(bcmd.getBlockPoolId(), toDelete);
        }
        // using global fsdataset
        dn.getFSDataset().invalidate(bcmd.getBlockPoolId(), toDelete);
      } catch(IOException e) {
        // Exceptions caught here are not expected to be disk-related.
        throw e;
      }
      dn.metrics.incrBlocksRemoved(toDelete.length);
      break;
    case DatanodeProtocol.DNA_CACHE:
      LOG.info("DatanodeCommand action: DNA_CACHE for " +
        blockIdCmd.getBlockPoolId() + " of [" +
          blockIdArrayToString(blockIdCmd.getBlockIds()) + "]");
      dn.getFSDataset().cache(blockIdCmd.getBlockPoolId(), blockIdCmd.getBlockIds());
      dn.metrics.incrBlocksCached(blockIdCmd.getBlockIds().length);
      break;
    case DatanodeProtocol.DNA_UNCACHE:
      LOG.info("DatanodeCommand action: DNA_UNCACHE for " +
        blockIdCmd.getBlockPoolId() + " of [" +
          blockIdArrayToString(blockIdCmd.getBlockIds()) + "]");
      dn.getFSDataset().uncache(blockIdCmd.getBlockPoolId(), blockIdCmd.getBlockIds());
      dn.metrics.incrBlocksUncached(blockIdCmd.getBlockIds().length);
      break;
    case DatanodeProtocol.DNA_SHUTDOWN:
      // TODO: DNA_SHUTDOWN appears to be unused - the NN never sends this command
      // See HDFS-2987.
      throw new UnsupportedOperationException("Received unimplemented DNA_SHUTDOWN");

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Examples of org.apache.hadoop.hdfs.server.protocol.BlockIdCommand

    String bpid = locs[0].getLocatedBlock().getBlock().getBlockPoolId();
    long[] blocks = new long[locs.length];
    for (int i=0; i<locs.length; i++) {
      blocks[i] = locs[i].getLocatedBlock().getBlock().getBlockId();
    }
    return new BlockIdCommand(action, bpid, blocks);
  }

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Examples of org.apache.hadoop.hdfs.server.protocol.BlockIdCommand

      action = DatanodeProtocol.DNA_UNCACHE;
      break;
    default:
      throw new AssertionError("Unknown action type: " + blkIdCmd.getAction());
    }
    return new BlockIdCommand(action, blkIdCmd.getBlockPoolId(), blockIds);
  }

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Examples of org.apache.hadoop.hdfs.server.protocol.BlockIdCommand

      action = DatanodeProtocol.DNA_UNCACHE;
      break;
    default:
      throw new AssertionError("Unknown action type: " + blkIdCmd.getAction());
    }
    return new BlockIdCommand(action, blkIdCmd.getBlockPoolId(), blockIds);
  }

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Examples of org.apache.hadoop.hdfs.server.protocol.BlockIdCommand

      action = DatanodeProtocol.DNA_UNCACHE;
      break;
    default:
      throw new AssertionError("Unknown action type: " + blkIdCmd.getAction());
    }
    return new BlockIdCommand(action, blkIdCmd.getBlockPoolId(), blockIds);
  }

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Examples of org.apache.hadoop.hdfs.server.protocol.BlockIdCommand

    String bpid = locs[0].getLocatedBlock().getBlock().getBlockPoolId();
    long[] blocks = new long[locs.length];
    for (int i=0; i<locs.length; i++) {
      blocks[i] = locs[i].getLocatedBlock().getBlock().getBlockId();
    }
    return new BlockIdCommand(action, bpid, blocks);
  }

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