Package org.apache.hadoop.hdfs.server.namenode.ha

Class BootstrapStandby

java.lang.Object
org.apache.hadoop.hdfs.server.namenode.ha.BootstrapStandby
All Implemented Interfaces:
org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool
@Private public class BootstrapStandby extends Object implements org.apache.hadoop.util.Tool, org.apache.hadoop.conf.Configurable
Tool which allows the standby node's storage directories to be bootstrapped by copying the latest namespace snapshot from the active namenode. This is used when first configuring an HA cluster.

  • Constructor Details

    • BootstrapStandby

      public BootstrapStandby()

  • Method Details

    • run

      public int run(String[] args) throws Exception
      Specified by:
      run in interface org.apache.hadoop.util.Tool
      Throws:
      Exception

    • getProxyNamespaceInfo

      @VisibleForTesting public NamespaceInfo getProxyNamespaceInfo(NamenodeProtocol proxy) throws IOException
      Throws:
      IOException

    • setConf

      public void setConf(org.apache.hadoop.conf.Configuration conf)
      Specified by:
      setConf in interface org.apache.hadoop.conf.Configurable

    • getConf

      public org.apache.hadoop.conf.Configuration getConf()
      Specified by:
      getConf in interface org.apache.hadoop.conf.Configurable

    • run

      public static int run(String[] argv, org.apache.hadoop.conf.Configuration conf) throws IOException
      Throws:
      IOException