Example usage for org.apache.hadoop.hdfs.server.protocol DatanodeRegistration getXferAddr

Introduction

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

Prototype

public String getXferAddr() 

Source Link

Usage

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

License:Apache License

private boolean checkAccess(final boolean reply, final ExtendedBlock blk, final Token<BlockTokenIdentifier> t,
        final Op op, final BlockTokenSecretManager.AccessMode mode, final Msg msg) throws IOException {
    if (dnBridge.isBlockTokenEnabled()) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Checking block access token for block '" + blk.getBlockId() + "' with mode '" + mode
                    + "'");
        }//from  w  w w.  ja  va2s . c om
        try {
            dnBridge.getBlockPoolTokenSecretManager().checkAccess(t, null, blk, mode);
        } catch (InvalidToken e) {
            if (reply) {
                final OutputStream replyOut = new ByteBufferOutputStream(msg.getOut());
                BlockOpResponseProto.Builder resp = BlockOpResponseProto.newBuilder()
                        .setStatus(ERROR_ACCESS_TOKEN);
                if (mode == BlockTokenSecretManager.AccessMode.WRITE) {
                    DatanodeRegistration dnR = dnBridge.getDNRegistrationForBP(blk.getBlockPoolId());
                    // NB: Unconditionally using the xfer addr w/o hostname
                    resp.setFirstBadLink(dnR.getXferAddr());
                }
                resp.build().writeDelimitedTo(replyOut);
                replyOut.flush();
                spw.queueAsyncReply(DataXceiverBase.this, msg, onFlightMsgs, true);
            }
            LOG.error("Block token verification failed: op=" + op + ", serverSession=" + serverSession
                    + ", message=" + e.getLocalizedMessage());
            return false;// FAILED
        }
    }
    return true; // SUCCESS
}

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