Examples of IsolatedScanner

org.apache.accumulo.core.client.IsolatedScanner
A scanner that presents a row isolated view of an accumulo table. Rows are buffered in memory on the client side. If you think your rows may not fit into memory, then you can provide an alternative row buffer factory to the constructor. This would allow rows to be buffered to disk for example.

Examples of org.apache.accumulo.core.client.IsolatedScanner

        
        serversToFlush.clear();
        
        try {
          Connector conn = getConnector();
          Scanner scanner = new IsolatedScanner(conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
          Constants.METADATA_FLUSH_COLUMN.fetch(scanner);
          Constants.METADATA_DIRECTORY_COLUMN.fetch(scanner);
          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());
          
          RowIterator ri = new RowIterator(scanner);
          
          int tabletsToWaitFor = 0;
          int tabletCount = 0;

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Examples of org.apache.accumulo.core.client.IsolatedScanner

        
        serversToFlush.clear();
        
        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);
          
          int tabletsToWaitFor = 0;

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Examples of org.apache.accumulo.core.client.IsolatedScanner

      } catch (IOException e) {
        throw new IllegalStateException("Unable to create offline metadata scanner", e);
      }
    } else {
      try {
        scanner = new IsolatedScanner(instance.getConnector(credentials).createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
      } catch (AccumuloSecurityException ex) {
        throw new AccumuloException(ex);
      } catch (TableNotFoundException ex) {
        throw new AccumuloException(ex);
      }

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Examples of org.apache.accumulo.core.client.IsolatedScanner

        } else {
          scanner = conn.createScanner(table, authorizations);
        }
        if (isIsolated) {
          log.info("Creating isolated scanner");
          scanner = new IsolatedScanner(scanner);
        }
        if (usesLocalIterators) {
          log.info("Using local iterators");
          scanner = new ClientSideIteratorScanner(scanner);
        }

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Examples of org.apache.accumulo.core.client.IsolatedScanner

    }
    return m;
  }
  
  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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Examples of org.apache.accumulo.core.client.IsolatedScanner

    ColumnFQ.put(m, Constants.METADATA_CHOPPED_COLUMN, new Value("chopped".getBytes()));
    update(SecurityConstants.getSystemCredentials(), zooLock, m);
  }
  
  public static void removeBulkLoadEntries(Connector conn, String tableId, long tid) throws Exception {
    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_BULKFILE_COLUMN_FAMILY);
    BatchWriter bw = conn.createBatchWriter(Constants.METADATA_TABLE_NAME, 10000000, 60000l, 1);
    for (Entry<Key,Value> entry : mscanner) {
      log.debug("Looking at entry " + entry + " with tid " + tid);
      if (Long.parseLong(entry.getValue().toString()) == tid) {
        log.debug("deleting entry " + entry);

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Examples of org.apache.accumulo.core.client.IsolatedScanner

  }
  
  public static List<String> getBulkFilesLoaded(Connector conn, KeyExtent extent, long tid) {
    List<String> result = new ArrayList<String>();
    try {
      Scanner mscanner = new IsolatedScanner(conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
      mscanner.setRange(extent.toMetadataRange());
      mscanner.fetchColumnFamily(Constants.METADATA_BULKFILE_COLUMN_FAMILY);
      for (Entry<Key,Value> entry : mscanner) {
        if (Long.parseLong(entry.getValue().toString()) == tid) {
          result.add(entry.getKey().getColumnQualifier().toString());
        }
      }

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Examples of org.apache.accumulo.core.client.IsolatedScanner

     */


    // determine which failed files were loaded
    AuthInfo creds = SecurityConstants.getSystemCredentials();
    Connector conn = HdfsZooInstance.getInstance().getConnector(creds.user, creds.password);
    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_BULKFILE_COLUMN_FAMILY);
    
    for (Entry<Key,Value> entry : mscanner) {
      if (Long.parseLong(entry.getValue().toString()) == tid) {
        String loadedFile = entry.getKey().getColumnQualifier().toString();
        String absPath = failures.remove(loadedFile);

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Examples of org.apache.accumulo.core.client.IsolatedScanner

      } catch (IOException e) {
        throw new IllegalStateException("Unable to create offline metadata scanner", e);
      }
    } else {
      try {
        scanner = new IsolatedScanner(instance.getConnector(credentials.getPrincipal(), CredentialHelper.extractToken(credentials)).createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
      } catch (AccumuloSecurityException ex) {
        throw new AccumuloException(ex);
      } catch (TableNotFoundException ex) {
        throw new AccumuloException(ex);
      }

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Examples of org.apache.accumulo.core.client.IsolatedScanner

        
        serversToFlush.clear();
        
        try {
          Connector conn = getConnector();
          Scanner scanner = new IsolatedScanner(conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
          Constants.METADATA_FLUSH_COLUMN.fetch(scanner);
          Constants.METADATA_DIRECTORY_COLUMN.fetch(scanner);
          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());
          
          RowIterator ri = new RowIterator(scanner);
          
          int tabletsToWaitFor = 0;
          int tabletCount = 0;

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