Package org.apache.accumulo.server.zookeeper

Examples of org.apache.accumulo.server.zookeeper.IZooReaderWriter

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    Runtime.getRuntime().halt(0);
  }
 
  void registerInZooKeeper(String zooDir) {
    try {
      IZooReaderWriter zoo = ZooReaderWriter.getInstance();
      String path = ZooUtil.getRoot(HdfsZooInstance.getInstance()) + zooDir;
      path += "/logger-";
      path = zoo.putEphemeralSequential(path, addressString.getBytes());
      ephemeralNode = path;
      zoo.exists(path, this);
    } catch (Exception ex) {
      throw new RuntimeException("Unexpected error creating zookeeper entry " + zooDir);
    }
  }
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  private void upgradeZookeeper() {
    if (Accumulo.getAccumuloPersistentVersion() == Constants.PREV_DATA_VERSION) {
      try {
        log.info("Upgrading zookeeper");

        IZooReaderWriter zoo = ZooReaderWriter.getInstance();
       
        TablePropUtil.setTableProperty(Constants.METADATA_TABLE_ID, Property.TABLE_ITERATOR_PREFIX.getKey() + "majc.bulkLoadFilter", "20,"
            + MetadataBulkLoadFilter.class.getName());
       
        zoo.putPersistentData(ZooUtil.getRoot(instance) + Constants.ZTABLE_LOCKS, new byte[0], NodeExistsPolicy.SKIP);
        zoo.putPersistentData(ZooUtil.getRoot(instance) + Constants.ZHDFS_RESERVATIONS, new byte[0], NodeExistsPolicy.SKIP);
        zoo.putPersistentData(ZooUtil.getRoot(instance) + Constants.ZNEXT_FILE, new byte[] {'0'}, NodeExistsPolicy.SKIP);

        String[] tablePropsToDelete = new String[] {"table.scan.cache.size", "table.scan.cache.enable"};

        for (String id : Tables.getIdToNameMap(instance).keySet()) {
          zoo.putPersistentData(ZooUtil.getRoot(instance) + Constants.ZTABLES + "/" + id + Constants.ZTABLE_FLUSH_ID, "0".getBytes(), NodeExistsPolicy.SKIP);
          zoo.putPersistentData(ZooUtil.getRoot(instance) + Constants.ZTABLES + "/" + id + Constants.ZTABLE_COMPACT_ID, "0".getBytes(), NodeExistsPolicy.SKIP);
         
          for (String prop : tablePropsToDelete) {
            String propPath = ZooUtil.getRoot(instance) + Constants.ZTABLES + "/" + id + Constants.ZTABLE_CONF + "/" + prop;
            if (zoo.exists(propPath))
              zoo.delete(propPath, -1);
          }
        }
       
        setACLs(zoo, ZooUtil.getRoot(instance), ZooUtil.getRoot(instance) + Constants.ZUSERS);
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  private static final Logger log = Logger.getLogger(DeadServerList.class);
  private final String path;
 
  public DeadServerList(String path) {
    this.path = path;
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
    try {
      zoo.mkdirs(path);
    } catch (Exception ex) {
      log.error("Unable to make parent directories of " + path, ex);
    }
  }
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    }
  }
 
  public List<DeadServer> getList() {
    List<DeadServer> result = new ArrayList<DeadServer>();
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
    try {
      List<String> children = zoo.getChildren(path);
      if (children != null) {
        for (String child : children) {
          Stat stat = new Stat();
          byte[] data = zoo.getData(path + "/" + child, stat);
          DeadServer server = new DeadServer(child, stat.getMtime(), new String(data));
          result.add(server);
        }
      }
    } catch (Exception ex) {
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    }
    return result;
  }
 
  public void delete(String server) {
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
    try {
      zoo.recursiveDelete(path + "/" + server, NodeMissingPolicy.SKIP);
    } catch (Exception ex) {
      log.error(ex, ex);
    }
  }
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      log.error(ex, ex);
    }
  }
 
  public void post(String server, String cause) {
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
    try {
      zoo.putPersistentData(path + "/" + server, cause.getBytes(), NodeExistsPolicy.SKIP);
    } catch (Exception ex) {
      log.error(ex, ex);
    }
  }
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  }
 

  private void registerInZooKeeper(String name) throws Exception {
    String root = ZooUtil.getRoot(HdfsZooInstance.getInstance()) + Constants.ZTRACERS;
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
    String path = zoo.putEphemeralSequential(root + "/trace-", name.getBytes());
    zoo.exists(path, this);
  }
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  @Override
  public Repo<Master> call(long tid, Master environment) throws Exception {
    String zTablePath = Constants.ZROOT + "/" + HdfsZooInstance.getInstance().getInstanceID() + Constants.ZTABLES + "/" + tableId + Constants.ZTABLE_COMPACT_ID;
   
    IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
    byte[] cid;
    try {
      cid = zoo.mutate(zTablePath, null, null, new Mutator() {
        @Override
        public byte[] mutate(byte[] currentValue) throws Exception {
          long flushID = Long.parseLong(new String(currentValue));
          flushID++;
          return ("" + flushID).getBytes();
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  @Override
  public Repo<Master> call(long tid, Master env) throws Exception {
   
    Instance instance = HdfsZooInstance.getInstance();
   
    IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
    Utils.tableNameLock.lock();
    try {
      Utils.checkTableDoesNotExist(instance, newTableName, tableId, TableOperation.RENAME);
     
      final String tap = ZooUtil.getRoot(instance) + Constants.ZTABLES + "/" + tableId + Constants.ZTABLE_NAME;
     
      zoo.mutate(tap, null, null, new Mutator() {
        public byte[] mutate(byte[] current) throws Exception {
          final String currentName = new String(current);
          if (currentName.equals(newTableName))
            return null; // assume in this case the operation is running again, so we are done
          if (!currentName.equals(oldTableName)) {
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  static String getNextTableId(String tableName, Instance instance) throws ThriftTableOperationException {
   
    String tableId = null;
    try {
      IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
      final String ntp = ZooUtil.getRoot(instance) + Constants.ZTABLES;
      byte[] nid = zoo.mutate(ntp, "0".getBytes(), ZooUtil.PUBLIC, new Mutator() {
        @Override
        public byte[] mutate(byte[] currentValue) throws Exception {
          BigInteger nextId = new BigInteger(new String(currentValue), Character.MAX_RADIX);
          nextId = nextId.add(BigInteger.ONE);
          return nextId.toString(Character.MAX_RADIX).getBytes();
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Related Classes of org.apache.accumulo.server.zookeeper.IZooReaderWriter

  • org.apache.accumulo.server.fate.Admin
  • org.apache.accumulo.server.gc.GarbageCollectWriteAheadLogs
  • org.apache.accumulo.server.logger.LogService
  • org.apache.accumulo.server.master.Master
  • org.apache.accumulo.server.master.Master$MasterClientServiceHandler
  • org.apache.accumulo.server.master.state.DeadServerList
  • org.apache.accumulo.server.master.state.tables.TableManager
  • org.apache.accumulo.server.master.state.ZooStore
  • org.apache.accumulo.server.master.tableOps.CompactRange
  • org.apache.accumulo.server.master.tableOps.RenameTable
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