Examples of org.apache.hadoop.hbase.Leases

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.

    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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  public TransactionalRegionServer(final HBaseConfiguration conf)
      throws IOException {
    super(conf);
    cleanOldTransactionsThread = new CleanOldTransactionsChore(this,
        super.stopRequested);
    transactionLeases = new Leases(conf.getInt(LEASE_TIME, DEFAULT_LEASE_TIME),
        LEASE_CHECK_FREQUENCY);
    LOG.error("leases time:"+conf.getInt(LEASE_TIME, DEFAULT_LEASE_TIME));
  }

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        "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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   */
  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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        "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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  /**
   * @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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    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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    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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Related Classes of org.apache.hadoop.hbase.Leases

org.apache.hadoop.hbase.master.ServerManager

org.apache.hadoop.hbase.regionserver.HRegionServer

org.apache.hadoop.hbase.regionserver.transactional.TransactionalRegion

org.apache.hadoop.hbase.regionserver.transactional.TransactionalRegionServer

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