Example usage for org.apache.hadoop.hdfs.server.protocol DatanodeProtocol blockReceivedAndDeleted

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs.server.protocol DatanodeProtocol blockReceivedAndDeleted.

Prototype

@Idempotent
public void blockReceivedAndDeleted(DatanodeRegistration registration, String poolId,
        StorageReceivedDeletedBlocks[] rcvdAndDeletedBlocks) throws IOException;

Source Link

Document

blockReceivedAndDeleted() allows the DataNode to tell the NameNode about recently-received and -deleted block data.

Usage

From source file:io.hops.experiments.benchmarks.blockreporting.TinyDatanodes.java

License:Apache License

private ExtendedBlock addBlocks(ClientProtocol nameNodeProto, DatanodeProtocol datanodeProto, String fileName,
        String clientName) throws IOException, SQLException {
    ExtendedBlock prevBlock = null;// www .j av a 2  s .c  om
    for (int jdx = 0; jdx < blocksPerFile; jdx++) {
        LocatedBlock loc = null;
        try {
            loc = nameNodeProto.addBlock(fileName, clientName, prevBlock, helper.getExcludedDatanodes());
            prevBlock = loc.getBlock();
            for (DatanodeInfo dnInfo : loc.getLocations()) {
                int dnIdx = Arrays.binarySearch(datanodes, dnInfo.getXferAddr());
                datanodes[dnIdx].addBlock(loc.getBlock().getLocalBlock());
                ReceivedDeletedBlockInfo[] rdBlocks = {
                        new ReceivedDeletedBlockInfo(loc.getBlock().getLocalBlock(),
                                ReceivedDeletedBlockInfo.BlockStatus.RECEIVED_BLOCK, null) };
                StorageReceivedDeletedBlocks[] report = { new StorageReceivedDeletedBlocks(
                        datanodes[dnIdx].dnRegistration.getStorageID(), rdBlocks) };
                datanodeProto.blockReceivedAndDeleted(datanodes[dnIdx].dnRegistration,
                        loc.getBlock().getBlockPoolId(), report);
            }
        } catch (IndexOutOfBoundsException e) {
            System.out.println(e);
            System.out.println("Located block " + Arrays.toString(loc.getLocations()));
            System.out.println("Excluded Nodes are " + Arrays.toString(helper.getExcludedDatanodes()));
        }
    }
    return prevBlock;
}

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