Package org.apache.accumulo.core.zookeeper

Examples of org.apache.accumulo.core.zookeeper.ZooCache$ZCacheWatcher

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  private static ZooCache getTablePropCache() {
    Instance inst = HdfsZooInstance.getInstance();
    if (tablePropCache == null)
      synchronized (TableConfiguration.class) {
        if (tablePropCache == null)
          tablePropCache = new ZooCache(inst.getZooKeepers(), inst.getZooKeepersSessionTimeOut(), new TableConfWatcher(inst.getInstanceID()));
      }
    return tablePropCache;
  }
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  }
 
  public synchronized ZooCache getZooCache() {
    if (zooCache == null)
      zooCache = new ZooCache(this);
    return zooCache;
  }
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      } catch (Exception ex) {
        log.fatal("Programmer error: cannot create a logger strategy.");
        throw new RuntimeException(ex);
      }
    }
    cache = new ZooCache();
   
  }
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    }
  }
 
  private HdfsZooInstance() {
    AccumuloConfiguration acuConf = ServerConfiguration.getSystemConfiguration();
    zooCache = new ZooCache(acuConf.get(Property.INSTANCE_ZK_HOST), (int) acuConf.getTimeInMillis(Property.INSTANCE_ZK_TIMEOUT));
  }
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    return tableId == null ? "(NAME:" + tableName + ")" : tableId;
  }
 
  public static TableState getTableState(Instance instance, String tableId) {
    String statePath = ZooUtil.getRoot(instance) + Constants.ZTABLES + "/" + tableId + Constants.ZTABLE_STATE;
    ZooCache zc = getZooCache(instance);
    byte[] state = zc.get(statePath);
    if (state == null)
      return TableState.UNKNOWN;
   
    return TableState.valueOf(new String(state));
  }
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public class ServerClient {
  private static final Logger log = Logger.getLogger(ServerClient.class);
  private static final Map<String,ZooCache> zooCaches = new HashMap<String,ZooCache>();
 
  private synchronized static ZooCache getZooCache(Instance instance) {
    ZooCache result = zooCaches.get(instance.getZooKeepers());
    if (result == null) {
      result = new ZooCache(instance.getZooKeepers(), instance.getZooKeepersSessionTimeOut(), null);
      zooCaches.put(instance.getZooKeepers(), result);
    }
    return result;
  }
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    // create list of servers
    ArrayList<ThriftTransportKey> servers = new ArrayList<ThriftTransportKey>();
   
    // add tservers
   
    ZooCache zc = getZooCache(instance);
   
    for (String tserver : zc.getChildren(ZooUtil.getRoot(instance) + Constants.ZTSERVERS)) {
      String path = ZooUtil.getRoot(instance) + Constants.ZTSERVERS + "/" + tserver;
      byte[] data = ZooUtil.getLockData(zc, path);
      if (data != null && !new String(data).equals("master"))
        servers.add(new ThriftTransportKey(new ServerServices(new String(data)).getAddressString(Service.TSERV_CLIENT), instance.getConfiguration().getPort(
            Property.TSERV_CLIENTPORT), instance.getConfiguration().getTimeInMillis(Property.GENERAL_RPC_TIMEOUT)));
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   * @see org.apache.accumulo.core.client.admin.InstanceOperations#getTabletServers()
   */
 
  @Override
  public List<String> getTabletServers() {
    ZooCache cache = ZooCache.getInstance(instance.getZooKeepers(), instance.getZooKeepersSessionTimeOut());
    String path = ZooUtil.getRoot(instance) + Constants.ZTSERVERS;
    List<String> results = new ArrayList<String>();
    for (String candidate : cache.getChildren(path)) {
      List<String> children = cache.getChildren(path + "/" + candidate);
      if (children != null && children.size() > 0) {
        List<String> copy = new ArrayList<String>(children);
        Collections.sort(copy);
        byte[] data = cache.get(path + "/" + candidate + "/" + copy.get(0));
        if (data != null && !"master".equals(new String(data))) {
          results.add(candidate);
        }
      }
    }
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    int numData = CacheTestWriter.NUM_DATA;
   
    File myfile = new File(reportDir + "/" + UUID.randomUUID());
    myfile.deleteOnExit();
   
    ZooCache zc = new ZooCache(keepers, 30000);
   
    while (true) {
      if (myfile.exists())
        myfile.delete();
     
      if (zc.get(rootDir + "/die") != null) {
        return;
      }
     
      Map<String,String> readData = new TreeMap<String,String>();
     
      for (int i = 0; i < numData; i++) {
        byte[] v = zc.get(rootDir + "/data" + i);
        if (v != null)
          readData.put(rootDir + "/data" + i, new String(v));
      }
     
      byte[] v = zc.get(rootDir + "/dataS");
      if (v != null)
        readData.put(rootDir + "/dataS", new String(v));
     
      List<String> children = zc.getChildren(rootDir + "/dir");
      if (children != null)
        for (String child : children) {
          readData.put(rootDir + "/dir/" + child, "");
        }
     
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    this.parent = parent;
  }
 
  synchronized public static ZooConfiguration getInstance(Instance inst, AccumuloConfiguration parent) {
    if (instance == null) {
      propCache = new ZooCache(inst.getZooKeepers(), inst.getZooKeepersSessionTimeOut());
      instance = new ZooConfiguration(parent);
      instanceId = inst.getInstanceID();
    }
    return instance;
  }
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Related Classes of org.apache.accumulo.core.zookeeper.ZooCache$ZCacheWatcher

  • org.apache.accumulo.core.client.admin.InstanceOperations
  • org.apache.accumulo.core.client.admin.InstanceOperationsImpl
  • org.apache.accumulo.core.client.impl.ServerClient
  • org.apache.accumulo.core.client.impl.Tables
  • org.apache.accumulo.core.conf.TableConfiguration
  • org.apache.accumulo.core.conf.ZooConfiguration
  • org.apache.accumulo.server.client.HdfsZooInstance
  • org.apache.accumulo.server.conf.TableConfiguration
  • org.apache.accumulo.server.conf.ZooConfiguration
  • org.apache.accumulo.server.constraints.MetadataConstraints
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