Package org.apache.hadoop.dfs.FSNamesystem

Examples of org.apache.hadoop.dfs.FSNamesystem.NumberReplicas.excessReplicas()

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      NumberReplicas num = null;
      do {
       synchronized (namesystem) {
         num = namesystem.countNodes(block);
       }
      } while (num.excessReplicas() == 0);
     
      // find out a non-excess node
      Iterator<DatanodeDescriptor> iter = namesystem.blocksMap.nodeIterator(block);
      DatanodeDescriptor nonExcessDN = null;
      while (iter.hasNext()) {
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      cluster.waitActive();
     
      // check if excessive replica is detected
      do {
       num = namesystem.countNodes(block);
      } while (num.excessReplicas() == 2);
    } finally {
      cluster.shutdown();
    }
  }
}
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