Example usage for org.apache.hadoop.hdfs.protocol DatanodeInfo getDatanodeUuid

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs.protocol DatanodeInfo getDatanodeUuid.

Prototype

public String getDatanodeUuid() 

Source Link

Usage

From source file:com.bigstep.datalake.JsonUtil.java

License:Apache License

/** Convert a DatanodeInfo to a Json map. */
static Map<String, Object> toJsonMap(final DatanodeInfo datanodeinfo) {
    if (datanodeinfo == null) {
        return null;
    }/*  w w  w  .  j  a  va2 s.  c om*/

    // TODO: Fix storageID
    final Map<String, Object> m = new TreeMap<String, Object>();
    m.put("ipAddr", datanodeinfo.getIpAddr());
    // 'name' is equivalent to ipAddr:xferPort. Older clients (1.x, 0.23.x)
    // expects this instead of the two fields.
    m.put("name", datanodeinfo.getXferAddr());
    m.put("hostName", datanodeinfo.getHostName());
    m.put("storageID", datanodeinfo.getDatanodeUuid());
    m.put("xferPort", datanodeinfo.getXferPort());
    m.put("infoPort", datanodeinfo.getInfoPort());
    m.put("infoSecurePort", datanodeinfo.getInfoSecurePort());
    m.put("ipcPort", datanodeinfo.getIpcPort());

    m.put("capacity", datanodeinfo.getCapacity());
    m.put("dfsUsed", datanodeinfo.getDfsUsed());
    m.put("remaining", datanodeinfo.getRemaining());
    m.put("blockPoolUsed", datanodeinfo.getBlockPoolUsed());
    m.put("cacheCapacity", datanodeinfo.getCacheCapacity());
    m.put("cacheUsed", datanodeinfo.getCacheUsed());
    m.put("lastUpdate", datanodeinfo.getLastUpdate());
    m.put("lastUpdateMonotonic", datanodeinfo.getLastUpdateMonotonic());
    m.put("xceiverCount", datanodeinfo.getXceiverCount());
    m.put("networkLocation", datanodeinfo.getNetworkLocation());
    m.put("adminState", datanodeinfo.getAdminState().name());
    return m;
}

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

License:Apache License

/**
 * Seek to given position on a node other than the current node. If
 * a node other than the current node is found, then returns true.
 * If another node could not be found, then returns false.
 *///from   w  ww  .j  a  va 2s . co  m
@Override
public synchronized boolean seekToNewSource(long targetPos) throws IOException {
    boolean markedDead = deadNodes.containsKey(currentNode);
    addToDeadNodes(currentNode);
    DatanodeInfo oldNode = currentNode;
    DatanodeInfo newNode = blockSeekTo(targetPos);
    if (!markedDead) {
        /*
         * remove it from deadNodes. blockSeekTo could have cleared
         * deadNodes and added currentNode again. Thats ok.
         */
        deadNodes.remove(oldNode);
    }
    if (!oldNode.getDatanodeUuid().equals(newNode.getDatanodeUuid())) {
        currentNode = newNode;
        return true;
    } else {
        return false;
    }
}

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