Example usage for org.apache.hadoop.hdfs.server.datanode SimulatedFSDataset injectBlocks

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs.server.datanode SimulatedFSDataset injectBlocks.

Prototype

public synchronized void injectBlocks(String bpid, Iterable<? extends Block> injectBlocks) throws IOException 

Source Link

Usage

From source file:com.mellanox.r4h.MiniDFSCluster.java

License:Apache License

/**
 * This method is valid only if the data nodes have simulated data
 * //from   ww  w  . j av a2s  .c om
 * @param dataNodeIndex
 *            - data node i which to inject - the index is same as for getDataNodes()
 * @param blocksToInject
 *            - the blocks
 * @param bpid
 *            - (optional) the block pool id to use for injecting blocks.
 *            If not supplied then it is queried from the in-process NameNode.
 * @throws IOException
 *             if not simulatedFSDataset
 *             if any of blocks already exist in the data node
 * 
 */
public void injectBlocks(int dataNodeIndex, Iterable<Block> blocksToInject, String bpid) throws IOException {
    if (dataNodeIndex < 0 || dataNodeIndex > dataNodes.size()) {
        throw new IndexOutOfBoundsException();
    }
    final DataNode dn = dataNodes.get(dataNodeIndex).datanode;
    final FsDatasetSpi<?> dataSet = DataNodeTestUtils.getFSDataset(dn);
    if (!(dataSet instanceof SimulatedFSDataset)) {
        throw new IOException("injectBlocks is valid only for SimilatedFSDataset");
    }
    if (bpid == null) {
        bpid = getNamesystem().getBlockPoolId();
    }
    SimulatedFSDataset sdataset = (SimulatedFSDataset) dataSet;
    sdataset.injectBlocks(bpid, blocksToInject);
    dataNodes.get(dataNodeIndex).datanode.scheduleAllBlockReport(0);
}

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From source file:com.mellanox.r4h.MiniDFSCluster.java

License:Apache License

/**
 * Multiple-NameNode version of {@link #injectBlocks(Iterable[])}.
 *//* www.  ja  v a  2  s .  c o m*/
public void injectBlocks(int nameNodeIndex, int dataNodeIndex, Iterable<Block> blocksToInject)
        throws IOException {
    if (dataNodeIndex < 0 || dataNodeIndex > dataNodes.size()) {
        throw new IndexOutOfBoundsException();
    }
    final DataNode dn = dataNodes.get(dataNodeIndex).datanode;
    final FsDatasetSpi<?> dataSet = DataNodeTestUtils.getFSDataset(dn);
    if (!(dataSet instanceof SimulatedFSDataset)) {
        throw new IOException("injectBlocks is valid only for SimilatedFSDataset");
    }
    String bpid = getNamesystem(nameNodeIndex).getBlockPoolId();
    SimulatedFSDataset sdataset = (SimulatedFSDataset) dataSet;
    sdataset.injectBlocks(bpid, blocksToInject);
    dataNodes.get(dataNodeIndex).datanode.scheduleAllBlockReport(0);
}

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