Examples of Leases

com.alibaba.wasp.fserver.Leases
Leases There are several server classes in wasp that need to track external clients that occasionally send heartbeats.
These external clients hold resources in the server class. Those resources need to be released if the external client fails to send a heartbeat after some interval of time passes.
The Leases class is a general reusable class for this kind of pattern. An instance of the Leases class will create a thread to do its dirty work. You should close() the instance if you want to clean up the thread properly.
NOTE: This class extends Thread rather than Chore because the sleep time can be interrupted when there is something to do, rather than the Chore sleep time which is invariant.
org.apache.hadoop.hbase.Leases
Leases There are several server classes in HBase that need to track external clients that occasionally send heartbeats. These external clients hold resources in the server class. Those resources need to be released if the external client fails to send a heartbeat after some interval of time passes. The Leases class is a general reusable class for this kind of pattern. An instance of the Leases class will create a thread to do its dirty work. You should close() the instance if you want to clean up the thread properly.
org.apache.hadoop.hbase.regionserver.Leases
Leases There are several server classes in HBase that need to track external clients that occasionally send heartbeats.
These external clients hold resources in the server class. Those resources need to be released if the external client fails to send a heartbeat after some interval of time passes.
The Leases class is a general reusable class for this kind of pattern. An instance of the Leases class will create a thread to do its dirty work. You should close() the instance if you want to clean up the thread properly.
NOTE: This class extends Thread rather than Chore because the sleep time can be interrupted when there is something to do, rather than the Chore sleep time which is invariant.

Examples of com.alibaba.wasp.fserver.Leases

   *          configuration
   */
  public MessageBroker(OnlineEntityGroups service, Configuration conf) {
    this.service = service;
    this.conf = conf;
    this.leases = new Leases(conf.getInt(FConstants.THREAD_WAKE_FREQUENCY,
        10 * 1000));
    this.subscriberLeaseTimeoutPeriod = conf.getInt(
        FConstants.WASP_FSEVER_SUBSCRIBER_TIMEOUT_PERIOD,
        FConstants.DEFAULT_WASP_FSEVER_SUBSCRIBER_TIMEOUT_PERIOD);
    this.renew = new RenewRunnable();

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Examples of com.alibaba.wasp.fserver.Leases

    super();
    this.server = server;
    this.connection = FConnectionManager.getConnection(server
        .getConfiguration());
    this.twoPhaseCommit = TwoPhaseCommit.getInstance(server.getActionManager());
    this.leases = new Leases(server.getConfiguration().getInt(
        FConstants.THREAD_WAKE_FREQUENCY,
        FConstants.DEFAULT_THREAD_WAKE_FREQUENCY));
    this.sessionLeaseTimeoutPeriod = this.server.getConfiguration().getInt(
        FConstants.WASP_CLIENT_SESSION_TIMEOUT_PERIOD,
        FConstants.DEFAULT_WASP_CLIENT_SESSION_TIMEOUT_PERIOD);

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Examples of org.apache.hadoop.hbase.Leases

        "hbase-958 debugging");
    }
    this.numRegionsToReport =                                        
      conf.getInt("hbase.regionserver.numregionstoreport", 10);      
      
    this.leases = new Leases(
      conf.getInt("hbase.regionserver.lease.period", 60 * 1000),
      this.threadWakeFrequency);
    
    int nbBlocks = conf.getInt("hbase.regionserver.nbreservationblocks", 4);
    for(int i = 0; i < nbBlocks; i++)  {

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Examples of org.apache.hadoop.hbase.Leases

   */
  public TransactionalRegion(final Path basedir, final HLog log,
      final FileSystem fs, final HBaseConfiguration conf,
      final HRegionInfo regionInfo, final FlushRequester flushListener) {
    super(basedir, log, fs, conf, regionInfo, flushListener);
    transactionLeases = new Leases(conf.getInt(LEASE_TIME, DEFAULT_LEASE_TIME),
        LEASE_CHECK_FREQUENCY);
    logManager = new TransactionalHLogManager(this);
    oldTransactionFlushTrigger = conf.getInt(OLD_TRANSACTION_FLUSH, DEFAULT_OLD_TRANSACTION_FLUSH);
  }

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Examples of org.apache.hadoop.hbase.Leases

  /**
   * @param master
   */
  public ServerManager(HMaster master) {
    this.master = master;
    serverLeases = new Leases(master.leaseTimeout, 
      master.getConfiguration().getInt("hbase.master.lease.thread.wakefrequency",
        15 * 1000));
    this.loggingPeriodForAverageLoad = master.getConfiguration().
      getLong("hbase.master.avgload.logging.period", 60000);
    this.nobalancingCount = master.getConfiguration().

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Examples of org.apache.hadoop.hbase.Leases

    int multiplier = this.conf.getInt(THREAD_WAKE_FREQUENCY +
        ".multiplier", 1000);
    this.majorCompactionChecker = new MajorCompactionChecker(this,
      this.threadWakeFrequency * multiplier,  this.stopRequested);


    this.leases = new Leases(
        conf.getInt("hbase.regionserver.lease.period", 60 * 1000),
        this.threadWakeFrequency);
  }

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Examples of org.apache.hadoop.hbase.Leases

      this.server.getListenerAddress().getPort())), System.currentTimeMillis(),
      this.conf.getInt("hbase.regionserver.info.port", 60030));
    this.numRegionsToReport =                                        
      conf.getInt("hbase.regionserver.numregionstoreport", 10);      
      
    this.leases = new Leases(
      conf.getInt("hbase.regionserver.lease.period", 60 * 1000),
      this.threadWakeFrequency);
    
    int nbBlocks = conf.getInt("hbase.regionserver.nbreservationblocks", 4);
    for(int i = 0; i < nbBlocks; i++)  {

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Examples of org.apache.hadoop.hbase.Leases

  /**
   * @param master
   */
  public ServerManager(HMaster master) {
    this.master = master;
    serverLeases = new Leases(master.leaseTimeout, 
      master.getConfiguration().getInt("hbase.master.lease.thread.wakefrequency",
        15 * 1000));
    this.loggingPeriodForAverageLoad = master.getConfiguration().
      getLong("hbase.master.avgload.logging.period", 15000);
  }

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Examples of org.apache.hadoop.hbase.Leases

    int multiplier = this.conf.getInt(THREAD_WAKE_FREQUENCY +
        ".multiplier", 1000);
    this.majorCompactionChecker = new MajorCompactionChecker(this,
      this.threadWakeFrequency * multiplier,  this.stopRequested);


    this.leases = new Leases(
        conf.getInt("hbase.regionserver.lease.period", 60 * 1000),
        this.threadWakeFrequency);
  }

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Examples of org.apache.hadoop.hbase.Leases

    int multiplier = this.conf.getInt(HConstants.THREAD_WAKE_FREQUENCY +
        ".multiplier", 1000);
    this.majorCompactionChecker = new MajorCompactionChecker(this,
      this.threadWakeFrequency * multiplier,  this.stopRequested);


    this.leases = new Leases(
        (int) conf.getLong(HConstants.HBASE_REGIONSERVER_LEASE_PERIOD_KEY,
            HConstants.DEFAULT_HBASE_REGIONSERVER_LEASE_PERIOD),
        this.threadWakeFrequency);
  }

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