Package org.apache.hadoop.hbase

Examples of org.apache.hadoop.hbase.Chore


   * @param stoppable Stoppable for the chore.
   * @return Chore; the chore is not started.
   */
  public Chore createCleanupChore(Stoppable stoppable) {
    // By default, it will run every 6 minutes (30 / 5).
    return new Chore("nonceCleaner", deleteNonceGracePeriod / 5, stoppable) {
      @Override
      protected void chore() {
        cleanUpOldNonces();
      }
    };
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  private static Thread getAndStartBalancerChore(final HMaster master) {
    String name = master.getServerName() + "-BalancerChore";
    int balancerPeriod =
      master.getConfiguration().getInt("hbase.balancer.period", 300000);
    // Start up the load balancer chore
    Chore chore = new Chore(name, balancerPeriod, master) {
      @Override
      protected void chore() {
        master.balance();
      }
    };
    return Threads.setDaemonThreadRunning(chore.getThread());
  }
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  private static Thread getAndStartClusterStatusChore(HMaster master) {
    if (master == null || master.balancer == null) {
      return null;
    }
    Chore chore = new ClusterStatusChore(master, master.balancer);
    return Threads.setDaemonThreadRunning(chore.getThread());
  }
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    return Threads.setDaemonThreadRunning(chore.getThread());
  }

  private static Thread getAndStartBalancerChore(final HMaster master) {
    // Start up the load balancer chore
    Chore chore = new BalancerChore(master);
    return Threads.setDaemonThreadRunning(chore.getThread());
  }
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  private static Thread getAndStartClusterStatusChore(HMaster master) {
    if (master == null || master.balancer == null) {
      return null;
    }
    Chore chore = new ClusterStatusChore(master, master.balancer);
    return Threads.setDaemonThreadRunning(chore.getThread());
  }
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    return Threads.setDaemonThreadRunning(chore.getThread());
  }

  private static Thread getAndStartBalancerChore(final HMaster master) {
    // Start up the load balancer chore
    Chore chore = new BalancerChore(master);
    return Threads.setDaemonThreadRunning(chore.getThread());
  }
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  private static Thread getAndStartBalancerChore(final HMaster master) {
    String name = master.getServerName() + "-BalancerChore";
    int balancerPeriod =
      master.getConfiguration().getInt("hbase.balancer.period", 300000);
    // Start up the load balancer chore
    Chore chore = new Chore(name, balancerPeriod, master) {
      @Override
      protected void chore() {
        master.balance();
      }
    };
    return Threads.setDaemonThreadRunning(chore.getThread());
  }
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    int familyValues = admin.getTableDescriptor(tableName).getFamily(family).getValues().size();
    StoppableImplementation stopper = new StoppableImplementation();

    //alter table every 10 sec
    Chore alterThread = new Chore("Alter Chore", 10000, stopper) {
      @Override
      protected void chore() {
        Random random = new Random();
        try {
          HTableDescriptor htd = admin.getTableDescriptor(tableName);
          String val = String.valueOf(random.nextInt());
          htd.getFamily(family).setValue(val, val);
          desc.getFamily(family).setValue(val, val); // save it for later
                                                     // control
          admin.modifyTable(tableName, htd);
        } catch (Exception ex) {
          LOG.warn("Caught exception", ex);
          fail(ex.getMessage());
        }
      }
    };

    //split table every 5 sec
    Chore splitThread = new Chore("Split thread", 5000, stopper) {
      @Override
      public void chore() {
        try {
          HRegion region = TEST_UTIL.getSplittableRegion(tableName, -1);
          if (region != null) {
            byte[] regionName = region.getRegionName();
            admin.flushRegion(regionName);
            admin.compactRegion(regionName);
            admin.splitRegion(regionName);
          } else {
            LOG.warn("Could not find suitable region for the table.  Possibly the " +
              "region got closed and the attempts got over before " +
              "the region could have got reassigned.");
          }
        } catch (NotServingRegionException nsre) {
          // the region may be in transition
          LOG.warn("Caught exception", nsre);
        } catch (Exception ex) {
          LOG.warn("Caught exception", ex);
          fail(ex.getMessage());
        }
      }
    };

    alterThread.start();
    splitThread.start();
    while (true) {
      List<HRegionInfo> regions = admin.getTableRegions(tableName);
      LOG.info(String.format("Table #regions: %d regions: %s:", regions.size(), regions));
      assertEquals(admin.getTableDescriptor(tableName), desc);
      for (HRegion region : TEST_UTIL.getMiniHBaseCluster().getRegions(tableName)) {
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  private static Thread getAndStartClusterStatusChore(HMaster master) {
    if (master == null || master.balancer == null) {
      return null;
    }
    Chore chore = new ClusterStatusChore(master, master.balancer);
    return Threads.setDaemonThreadRunning(chore.getThread());
  }
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    return Threads.setDaemonThreadRunning(chore.getThread());
  }

  private static Thread getAndStartBalancerChore(final HMaster master) {
    // Start up the load balancer chore
    Chore chore = new BalancerChore(master);
    return Threads.setDaemonThreadRunning(chore.getThread());
  }
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