Example usage for org.apache.hadoop.hdfs.server.protocol NodeRegistration getVersion

Introduction

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

Prototype

public int getVersion();

Source Link

Document

Get layout version of the server node.

Usage

From source file:common.NameNode.java

License:Apache License

/** 
 * Verify request./*from  w  w w .j  av a2s.  c  o m*/
 * 
 * Verifies correctness of the datanode version, registration ID, and 
 * if the datanode does not need to be shutdown.
 * 
 * @param nodeReg data node registration
 * @throws IOException
 */
public void verifyRequest(NodeRegistration nodeReg) throws IOException {
    verifyVersion(nodeReg.getVersion());
    if (!namesystem.getRegistrationID().equals(nodeReg.getRegistrationID()))
        throw new UnregisteredNodeException(nodeReg);
}

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