How to use

startBlockKeyUpdater

method

in

org.apache.hadoop.hdfs.server.balancer.KeyManager

public static List<NameNodeConnector> newNameNodeConnectors(
  Map<URI, List<Path>> namenodes, String name, Path idPath,
  Configuration conf, int maxIdleIterations) throws IOException {
 final List<NameNodeConnector> connectors = new ArrayList<NameNodeConnector>(
   namenodes.size());
 for (Map.Entry<URI, List<Path>> entry : namenodes.entrySet()) {
  NameNodeConnector nnc = new NameNodeConnector(name, entry.getKey(),
    idPath, entry.getValue(), conf, maxIdleIterations);
  nnc.getKeyManager().startBlockKeyUpdater();
  connectors.add(nnc);
 }
 return connectors;
}

/** Create {@link NameNodeConnector} for the given namenodes. */
public static List<NameNodeConnector> newNameNodeConnectors(
  Collection<URI> namenodes, String name, Path idPath, Configuration conf,
  int maxIdleIterations) throws IOException {
 final List<NameNodeConnector> connectors = new ArrayList<NameNodeConnector>(
   namenodes.size());
 for (URI uri : namenodes) {
  NameNodeConnector nnc = new NameNodeConnector(name, uri, idPath,
    null, conf, maxIdleIterations);
  nnc.getKeyManager().startBlockKeyUpdater();
  connectors.add(nnc);
 }
 return connectors;
}

public static List<NameNodeConnector> newNameNodeConnectors(
  Map<URI, List<Path>> namenodes, String name, Path idPath,
  Configuration conf, int maxIdleIterations) throws IOException {
 final List<NameNodeConnector> connectors = new ArrayList<NameNodeConnector>(
   namenodes.size());
 for (Map.Entry<URI, List<Path>> entry : namenodes.entrySet()) {
  NameNodeConnector nnc = new NameNodeConnector(name, entry.getKey(),
    idPath, entry.getValue(), conf, maxIdleIterations);
  nnc.getKeyManager().startBlockKeyUpdater();
  connectors.add(nnc);
 }
 return connectors;
}

public static List<NameNodeConnector> newNameNodeConnectors(
  Map<URI, List<Path>> namenodes, String name, Path idPath,
  Configuration conf, int maxIdleIterations) throws IOException {
 final List<NameNodeConnector> connectors = new ArrayList<NameNodeConnector>(
   namenodes.size());
 for (Map.Entry<URI, List<Path>> entry : namenodes.entrySet()) {
  NameNodeConnector nnc = new NameNodeConnector(name, entry.getKey(),
    idPath, entry.getValue(), conf, maxIdleIterations);
  nnc.getKeyManager().startBlockKeyUpdater();
  connectors.add(nnc);
 }
 return connectors;
}

/** Create {@link NameNodeConnector} for the given namenodes. */
public static List<NameNodeConnector> newNameNodeConnectors(
  Collection<URI> namenodes, String name, Path idPath, Configuration conf,
  int maxIdleIterations) throws IOException {
 final List<NameNodeConnector> connectors = new ArrayList<NameNodeConnector>(
   namenodes.size());
 for (URI uri : namenodes) {
  NameNodeConnector nnc = new NameNodeConnector(name, uri, idPath,
    null, conf, maxIdleIterations);
  nnc.getKeyManager().startBlockKeyUpdater();
  connectors.add(nnc);
 }
 return connectors;
}

/** Create {@link NameNodeConnector} for the given namenodes. */
public static List<NameNodeConnector> newNameNodeConnectors(
  Collection<URI> namenodes, String name, Path idPath, Configuration conf,
  int maxIdleIterations) throws IOException {
 final List<NameNodeConnector> connectors = new ArrayList<NameNodeConnector>(
   namenodes.size());
 for (URI uri : namenodes) {
  NameNodeConnector nnc = new NameNodeConnector(name, uri, idPath,
    null, conf, maxIdleIterations);
  nnc.getKeyManager().startBlockKeyUpdater();
  connectors.add(nnc);
 }
 return connectors;
}