Examples of com.alibaba.wasp.zookeeper.ZKTable

com.alibaba.wasp.zookeeper.ZKTable
Helper class for table state tracking for use by {@link com.alibaba.wasp.master.AssignmentManager}. Reads, caches and sets state up in zookeeper. If multiple read/write clients, will make for confusion. Read-only clients other than AssignmentManager interested in learning table state can use the read-only utility methods in {@link ZKTableReadOnly}.
To save on trips to the zookeeper ensemble, internally we cache table state.

            "wasp.master.assignment.timeoutmonitor.timeout", 600000));
    this.timerUpdater = new TimerUpdater(conf.getInt(
        "wasp.master.assignment.timerupdater.period", 10000), server);
    Threads.setDaemonThreadRunning(timerUpdater.getThread(),
        server.getServerName() + ".timerUpdater");
    this.zkTable = new ZKTable(this.watcher);
    this.maximumAttempts = this.server.getConfiguration().getInt(
        "wasp.assignment.maximum.attempts", 10);
    this.balancer = balancer;
    int maxThreads = conf.getInt("wasp.assignment.threads.max", 30);
    this.threadPoolExecutorService = Threads.getBoundedCachedThreadPool(

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  @Test(timeout = 36000)
  public void testEnableDisableAddColumnDeleteColumn() throws Exception {
    ZooKeeperWatcher zkw = WaspTestingUtility.getZooKeeperWatcher(TEST_UTIL);
    byte[] tableName = Bytes.toBytes("testMasterAdmin");
    TEST_UTIL.createTable(tableName);
    ZKTable zkTable = new ZKTable(zkw);
    while (!zkTable.isEnabledTable("testMasterAdmin")) {
      Thread.sleep(10);
    }
    admin.disableTable(tableName);
    admin.addColumn(tableName, new Field(FieldKeyWord.REQUIRED, "cf", "col2",
        DataType.STRING, null));

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              EntityGroupState.State.OPEN, System.currentTimeMillis(), server
                  .getServerName()));
      // create a node with OPENED state
      zkw = WaspTestingUtility.createAndForceNodeToOpenedState(TEST_UTIL,
          entityGroup, server.getServerName());
      when(am.getZKTable()).thenReturn(new ZKTable(zkw));
      Stat stat = new Stat();
      String nodeName = ZKAssign.getNodeName(zkw, entityGroup
          .getEntityGroupInfo().getEncodedName());
      ZKUtil.getDataAndWatch(zkw, nodeName, stat);

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Related Classes of com.alibaba.wasp.zookeeper.ZKTable

com.alibaba.wasp.client.TestAdmin

com.alibaba.wasp.master.AssignmentManager

com.alibaba.wasp.master.TestOpenedEntityGroupHandler

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