Package org.apache.accumulo.server.master.state

Examples of org.apache.accumulo.server.master.state.MetaDataTableScanner

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    ZooKeeperInstance zki = new ZooKeeperInstance(iname, keepers);
    String tableId = Tables.getTableId(zki, tableName);
   
    // read the locations for the table
    Range tableRange = new KeyExtent(new Text(tableId), null, null).toMetadataRange();
    MetaDataTableScanner s = new MetaDataTableScanner(zki, SecurityConstants.getSystemCredentials(), tableRange);
    long randomSessionID = port;
    TServerInstance instance = new TServerInstance(addr, randomSessionID);
    List<Assignment> assignments = new ArrayList<Assignment>();
    while (s.hasNext()) {
      TabletLocationState next = s.next();
      assignments.add(new Assignment(next.extent, instance));
    }
    s.close();
    // point them to this server
    MetaDataStateStore store = new MetaDataStateStore();
    store.setLocations(assignments);
   
    while (true) {
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    if (RootTable.NAME.equals(tableName))
      return 0;

    System.out.println("Scanning " + RootTable.NAME);
    Iterator<TabletLocationState> rootScanner = new MetaDataTableScanner(instance, creds, MetadataSchema.TabletsSection.getRange(), RootTable.NAME);
    if ((offline = checkTablets(rootScanner, tservers)) > 0)
      return offline;

    if (MetadataTable.NAME.equals(tableName))
      return 0;

    System.out.println("Scanning " + MetadataTable.NAME);

    Range range = MetadataSchema.TabletsSection.getRange();
    if (tableName != null) {
      String tableId = Tables.getTableId(instance, tableName);
      range = new KeyExtent(new Text(tableId), null, null).toMetadataRange();
    }

    Iterator<TabletLocationState> metaScanner = new MetaDataTableScanner(instance, creds, range, MetadataTable.NAME);
    return checkTablets(metaScanner, tservers);
  }
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    ZooKeeperInstance zki = new ZooKeeperInstance(new ClientConfiguration().withInstance(opts.iname).withZkHosts(opts.keepers));
    String tableId = Tables.getTableId(zki, opts.tableName);
   
    // read the locations for the table
    Range tableRange = new KeyExtent(new Text(tableId), null, null).toMetadataRange();
    MetaDataTableScanner s = new MetaDataTableScanner(zki, SystemCredentials.get(), tableRange);
    long randomSessionID = opts.port;
    TServerInstance instance = new TServerInstance(addr, randomSessionID);
    List<Assignment> assignments = new ArrayList<Assignment>();
    while (s.hasNext()) {
      TabletLocationState next = s.next();
      assignments.add(new Assignment(next.extent, instance));
    }
    s.close();
    // point them to this server
    MetaDataStateStore store = new MetaDataStateStore();
    store.setLocations(assignments);
   
    while (true) {
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    TreeSet<String> locs = new TreeSet<String>();
    if (RootTable.ID.equals(tableId)) {
      locs.add(instance.getRootTabletLocation());
    } else {
      String systemTableName = MetadataTable.ID.equals(tableId) ? RootTable.NAME : MetadataTable.NAME;
      MetaDataTableScanner scanner = new MetaDataTableScanner(instance, SystemCredentials.get(), new Range(KeyExtent.getMetadataEntry(new Text(tableId),
          new Text()), KeyExtent.getMetadataEntry(new Text(tableId), null)), systemTableName);
     
      while (scanner.hasNext()) {
        TabletLocationState state = scanner.next();
        if (state.current != null) {
          try {
            locs.add(state.current.hostPort());
          } catch (Exception ex) {
            log.error(ex, ex);
          }
        }
      }
      scanner.close();
    }
   
    log.debug("Locs: " + locs);
   
    List<TabletServerStatus> tservers = new ArrayList<TabletServerStatus>();
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    assertEquals(online.current, online.last);
  }

  private TabletLocationState getTabletLocationState(Connector c, String tableId) {
    Credentials creds = new Credentials("root", new PasswordToken(ROOT_PASSWORD));
    MetaDataTableScanner s = new MetaDataTableScanner(c.getInstance(), creds, new Range(KeyExtent.getMetadataEntry(new Text(tableId), null)));
    return s.next();
  }
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    ZooKeeperInstance zki = new ZooKeeperInstance(iname, keepers);
    String tableId = Tables.getTableId(zki, tableName);
   
    // read the locations for the table
    Range tableRange = new KeyExtent(new Text(tableId), null, null).toMetadataRange();
    MetaDataTableScanner s = new MetaDataTableScanner(zki, SecurityConstants.getSystemCredentials(), tableRange);
    long randomSessionID = port;
    TServerInstance instance = new TServerInstance(addr, randomSessionID);
    List<Assignment> assignments = new ArrayList<Assignment>();
    while (s.hasNext()) {
      TabletLocationState next = s.next();
      assignments.add(new Assignment(next.extent, instance));
    }
    s.close();
    // point them to this server
    MetaDataStateStore store = new MetaDataStateStore();
    store.setLocations(assignments);
   
    while (true) {
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    ZooKeeperInstance zki = new ZooKeeperInstance(iname, keepers);
    String tableId = Tables.getTableId(zki, tableName);
   
    // read the locations for the table
    Range tableRange = new KeyExtent(new Text(tableId), null, null).toMetadataRange();
    MetaDataTableScanner s = new MetaDataTableScanner(tableRange);
    long randomSessionID = port;
    TServerInstance instance = new TServerInstance(addr, randomSessionID);
    List<Assignment> assignments = new ArrayList<Assignment>();
    while (s.hasNext()) {
      TabletLocationState next = s.next();
      assignments.add(new Assignment(next.extent, instance));
    }
    // point them to this server
    MetaDataStateStore store = new MetaDataStateStore(null);
    store.setLocations(assignments);
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      // Now the watchers won't assigning tablets for the deleted table
      boolean done = false;
      while (!done) {
        done = true;
        Range tableRange = new KeyExtent(new Text(tableId), null, null).toMetadataRange();
        MetaDataTableScanner metaDataTableScanner = new MetaDataTableScanner(tableRange, null, null);
        try {
          while (metaDataTableScanner.hasNext()) {
            TabletLocationState locationState = metaDataTableScanner.next();
            TabletState state = locationState.getState(onlineTabletServers());
            if (state.equals(TabletState.ASSIGNED) || state.equals(TabletState.HOSTED)) {
              log.debug("Still waiting for table to be deleted: " + tableId + " locationState: " + locationState);
              done = false;
              break;
            }
          }
        } finally {
          metaDataTableScanner.close();
        }
        if (!done)
          waitAround();
      }
    }
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  }
 
  private void doTableDetails(HttpServletRequest req, StringBuilder sb, Map<String,String> tidToNameMap, String tableId) {
    String displayName = Tables.getPrintableTableNameFromId(tidToNameMap, tableId);
   
    MetaDataTableScanner scanner = new MetaDataTableScanner(new Range(KeyExtent.getMetadataEntry(new Text(tableId), new Text()), KeyExtent.getMetadataEntry(
        new Text(tableId), null)));
   
    TreeSet<String> locs = new TreeSet<String>();
    while (scanner.hasNext()) {
      TabletLocationState state = scanner.next();
      if (state.current != null) {
        try {
          locs.add(state.current.hostPort());
        } catch (Exception ex) {
          log.error(ex, ex);
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Related Classes of org.apache.accumulo.server.master.state.MetaDataTableScanner

  • org.apache.accumulo.core.client.Connector
  • org.apache.accumulo.core.client.IteratorSetting
  • org.apache.accumulo.core.data.Key
  • org.apache.accumulo.core.data.KeyExtent
  • org.apache.accumulo.monitor.servlets.TablesServlet
  • org.apache.accumulo.server.master.Master$DeleteThread
  • org.apache.accumulo.server.monitor.servlets.TablesServlet
  • org.apache.accumulo.server.test.performance.thrift.NullTserver
  • org.apache.accumulo.server.util.FindOfflineTablets
  • org.apache.accumulo.test.functional.MasterAssignmentIT
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