Package org.apache.accumulo.core.client

Examples of org.apache.accumulo.core.client.Scanner.fetchColumnFamily()

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  protected void checkRFiles(String tableName, int minTablets, int maxTablets, int minRFiles, int maxRFiles) throws Exception {
    Scanner scanner = getConnector().createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS);
    String tableId = Tables.getNameToIdMap(getInstance()).get(tableName);
    scanner.setRange(new Range(new Text(tableId + ";"), true, new Text(tableId + "<"), true));
    scanner.fetchColumnFamily(Constants.METADATA_DATAFILE_COLUMN_FAMILY);
    Constants.METADATA_PREV_ROW_COLUMN.fetch(scanner);
   
    HashMap<Text,Integer> tabletFileCounts = new HashMap<Text,Integer>();
   
    for (Entry<Key,Value> entry : scanner) {
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    LogEntryIterator(AuthInfo creds) throws IOException, KeeperException, InterruptedException {
      rootTabletEntries = getLogEntries(creds, Constants.ROOT_TABLET_EXTENT).iterator();
      try {
        Scanner scanner = HdfsZooInstance.getInstance().getConnector(creds.user, creds.password)
            .createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS);
        scanner.fetchColumnFamily(Constants.METADATA_LOG_COLUMN_FAMILY);
        metadataEntries = scanner.iterator();
      } catch (Exception ex) {
        throw new IOException(ex);
      }
    }
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        try {
          Connector conn = getConnector();
          Scanner scanner = new IsolatedScanner(conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
          ColumnFQ.fetch(scanner, Constants.METADATA_FLUSH_COLUMN);
          ColumnFQ.fetch(scanner, Constants.METADATA_DIRECTORY_COLUMN);
          scanner.fetchColumnFamily(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY);
          scanner.fetchColumnFamily(Constants.METADATA_LOG_COLUMN_FAMILY);
          scanner.setRange(new KeyExtent(new Text(tableId), null, ByteBufferUtil.toText(startRow)).toMetadataRange());
         
          // TODO this used to be TabletIterator... any problems with splits/merges?
          RowIterator ri = new RowIterator(scanner);
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          Connector conn = getConnector();
          Scanner scanner = new IsolatedScanner(conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
          ColumnFQ.fetch(scanner, Constants.METADATA_FLUSH_COLUMN);
          ColumnFQ.fetch(scanner, Constants.METADATA_DIRECTORY_COLUMN);
          scanner.fetchColumnFamily(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY);
          scanner.fetchColumnFamily(Constants.METADATA_LOG_COLUMN_FAMILY);
          scanner.setRange(new KeyExtent(new Text(tableId), null, ByteBufferUtil.toText(startRow)).toMetadataRange());
         
          // TODO this used to be TabletIterator... any problems with splits/merges?
          RowIterator ri = new RowIterator(scanner);
         
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    }
   
    // skip candidates that are still in use in the file column family in
    // the metadata table
    scanner.clearColumns();
    scanner.fetchColumnFamily(Constants.METADATA_DATAFILE_COLUMN_FAMILY);
    scanner.fetchColumnFamily(Constants.METADATA_SCANFILE_COLUMN_FAMILY);
    ColumnFQ.fetch(scanner, Constants.METADATA_DIRECTORY_COLUMN);
   
    TabletIterator tabletIterator = new TabletIterator(scanner, Constants.METADATA_KEYSPACE, false, true);
   
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    // skip candidates that are still in use in the file column family in
    // the metadata table
    scanner.clearColumns();
    scanner.fetchColumnFamily(Constants.METADATA_DATAFILE_COLUMN_FAMILY);
    scanner.fetchColumnFamily(Constants.METADATA_SCANFILE_COLUMN_FAMILY);
    ColumnFQ.fetch(scanner, Constants.METADATA_DIRECTORY_COLUMN);
   
    TabletIterator tabletIterator = new TabletIterator(scanner, Constants.METADATA_KEYSPACE, false, true);
   
    while (tabletIterator.hasNext()) {
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  private static Scanner createCloneScanner(String tableId, Connector conn) throws TableNotFoundException {
    Scanner mscanner = new IsolatedScanner(conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
    mscanner.setRange(new KeyExtent(new Text(tableId), null, null).toMetadataRange());
    mscanner.fetchColumnFamily(Constants.METADATA_DATAFILE_COLUMN_FAMILY);
    mscanner.fetchColumnFamily(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY);
    mscanner.fetchColumnFamily(Constants.METADATA_LAST_LOCATION_COLUMN_FAMILY);
    mscanner.fetchColumnFamily(Constants.METADATA_CLONED_COLUMN_FAMILY);
    ColumnFQ.fetch(mscanner, Constants.METADATA_PREV_ROW_COLUMN);
    ColumnFQ.fetch(mscanner, Constants.METADATA_TIME_COLUMN);
    return mscanner;
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  private static Scanner createCloneScanner(String tableId, Connector conn) throws TableNotFoundException {
    Scanner mscanner = new IsolatedScanner(conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
    mscanner.setRange(new KeyExtent(new Text(tableId), null, null).toMetadataRange());
    mscanner.fetchColumnFamily(Constants.METADATA_DATAFILE_COLUMN_FAMILY);
    mscanner.fetchColumnFamily(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY);
    mscanner.fetchColumnFamily(Constants.METADATA_LAST_LOCATION_COLUMN_FAMILY);
    mscanner.fetchColumnFamily(Constants.METADATA_CLONED_COLUMN_FAMILY);
    ColumnFQ.fetch(mscanner, Constants.METADATA_PREV_ROW_COLUMN);
    ColumnFQ.fetch(mscanner, Constants.METADATA_TIME_COLUMN);
    return mscanner;
  }
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    Scanner mscanner = new IsolatedScanner(conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
    mscanner.setRange(new KeyExtent(new Text(tableId), null, null).toMetadataRange());
    mscanner.fetchColumnFamily(Constants.METADATA_DATAFILE_COLUMN_FAMILY);
    mscanner.fetchColumnFamily(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY);
    mscanner.fetchColumnFamily(Constants.METADATA_LAST_LOCATION_COLUMN_FAMILY);
    mscanner.fetchColumnFamily(Constants.METADATA_CLONED_COLUMN_FAMILY);
    ColumnFQ.fetch(mscanner, Constants.METADATA_PREV_ROW_COLUMN);
    ColumnFQ.fetch(mscanner, Constants.METADATA_TIME_COLUMN);
    return mscanner;
  }
 
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            range.getEndRow()), true);
        Scanner scanner = conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS);
        scanner.setRange(deleteRange);
        ColumnFQ.fetch(scanner, Constants.METADATA_DIRECTORY_COLUMN);
        ColumnFQ.fetch(scanner, Constants.METADATA_TIME_COLUMN);
        scanner.fetchColumnFamily(Constants.METADATA_DATAFILE_COLUMN_FAMILY);
        scanner.fetchColumnFamily(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY);
        Set<String> datafiles = new TreeSet<String>();
        for (Entry<Key,Value> entry : scanner) {
          Key key = entry.getKey();
          if (key.compareColumnFamily(Constants.METADATA_DATAFILE_COLUMN_FAMILY) == 0) {
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