Package org.apache.accumulo.fate.zookeeper

Examples of org.apache.accumulo.fate.zookeeper.ZooCache

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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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    return instance;
  }
 
  synchronized public static ZooConfiguration getInstance(AccumuloConfiguration parent) {
    if (instance == null) {
      propCache = new ZooCache(parent.get(Property.INSTANCE_ZK_HOST), (int) parent.getTimeInMillis(Property.INSTANCE_ZK_TIMEOUT));
      instance = new ZooConfiguration(parent);
      @SuppressWarnings("deprecation")
      String deprecatedInstanceIdFromHdfs = ZooKeeperInstance.getInstanceIDFromHdfs(ServerConstants.getInstanceIdLocation());
      instanceId = deprecatedInstanceIdFromHdfs;
    }
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  }

  private void initializeZooCache() {
    synchronized (initLock) {
      if (null == tablePropCache) {
        tablePropCache = new ZooCache(instance.getZooKeepers(), instance.getZooKeepersSessionTimeOut(), new TableConfWatcher(instance));
      }
    }
  }
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*/
public class HdfsZooInstance implements Instance {

  private HdfsZooInstance() {
    AccumuloConfiguration acuConf = ServerConfiguration.getSiteConfiguration();
    zooCache = new ZooCache(acuConf.get(Property.INSTANCE_ZK_HOST), (int) acuConf.getTimeInMillis(Property.INSTANCE_ZK_TIMEOUT));
  }
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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);
    AccumuloConfiguration conf = instance.getConfiguration();
    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) {
        String tserverData = new String(data, Constants.UTF8);
        if (!tserverData.equals("master")) {
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    });
  }
 
  @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, Constants.UTF8))) {
          results.add(candidate);
        }
      }
    }
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      opts.keepers = ServerConfiguration.getSiteConfiguration().get(Property.INSTANCE_ZK_HOST);
    }
   
    System.out.println("INFO : Using ZooKeepers " + opts.keepers);
    ZooReader rdr = new ZooReader(opts.keepers, ZOOKEEPER_TIMER_MILLIS);
    ZooCache cache = new ZooCache(opts.keepers, ZOOKEEPER_TIMER_MILLIS);

    TreeMap<String,UUID> instanceNames = getInstanceNames(rdr);
   
    System.out.println();
    printHeader();
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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, Constants.UTF8));
      }
     
      byte[] v = zc.get(rootDir + "/dataS");
      if (v != null)
        readData.put(rootDir + "/dataS", new String(v, Constants.UTF8));
     
      List<String> children = zc.getChildren(rootDir + "/dir");
      if (children != null)
        for (String child : children) {
          readData.put(rootDir + "/dir/" + child, "");
        }
     
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    }
  }
 
  private HdfsZooInstance() {
    AccumuloConfiguration acuConf = ServerConfiguration.getSiteConfiguration();
    zooCache = new ZooCache(acuConf.get(Property.INSTANCE_ZK_HOST), (int) acuConf.getTimeInMillis(Property.INSTANCE_ZK_TIMEOUT));
  }
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Related Classes of org.apache.accumulo.fate.zookeeper.ZooCache

  • org.apache.accumulo.core.client.admin.InstanceOperationsImpl
  • org.apache.accumulo.core.client.impl.InstanceOperationsImpl
  • org.apache.accumulo.core.client.impl.Namespaces
  • org.apache.accumulo.core.client.impl.RootTabletLocator
  • org.apache.accumulo.core.client.impl.ServerClient
  • org.apache.accumulo.core.client.impl.Tables
  • org.apache.accumulo.server.client.HdfsZooInstance
  • org.apache.accumulo.server.conf.NamespaceConfiguration
  • org.apache.accumulo.server.conf.TableConfiguration
  • org.apache.accumulo.server.conf.ZooConfiguration
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