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

    }
    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);
    Constants.METADATA_PREV_ROW_COLUMN.fetch(mscanner);
    Constants.METADATA_TIME_COLUMN.fetch(mscanner);
    return mscanner;
  }

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

    Constants.METADATA_CHOPPED_COLUMN.put(m, 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, new BatchWriterConfig());
    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

      throw new ThriftTableOperationException(tableId, null, TableOperation.COMPACT, TableOperationExceptionType.OTHER, "Compaction canceled");
    }


    MapCounter<TServerInstance> serversToFlush = new MapCounter<TServerInstance>();
    Connector conn = master.getConnector();
    Scanner scanner = new IsolatedScanner(conn.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS));
    
    Range range = new KeyExtent(new Text(tableId), null, startRow == null ? null : new Text(startRow)).toMetadataRange();
    
    if (tableId.equals(Constants.METADATA_TABLE_ID))
      range = range.clip(new Range(Constants.ROOT_TABLET_EXTENT.getMetadataEntry(), false, null, true));
    
    scanner.setRange(range);
    Constants.METADATA_COMPACT_COLUMN.fetch(scanner);
    Constants.METADATA_DIRECTORY_COLUMN.fetch(scanner);
    scanner.fetchColumnFamily(Constants.METADATA_CURRENT_LOCATION_COLUMN_FAMILY);
    
    long t1 = System.currentTimeMillis();
    RowIterator ri = new RowIterator(scanner);
    
    int tabletsToWaitFor = 0;

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

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

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

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

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

     * have no loaded markers.
     */


    // determine which failed files were loaded
    Connector conn = master.getConnector();
    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

    List<String> tableNames = (List<String>) state.get("tables");
    
    String tableName = tableNames.get(rand.nextInt(tableNames.size()));
    
    try {
      RowIterator iter = new RowIterator(new IsolatedScanner(conn.createScanner(tableName, Constants.NO_AUTHS)));
      
      while (iter.hasNext()) {
        PeekingIterator<Entry<Key,Value>> row = new PeekingIterator<Entry<Key,Value>>(iter.next());
        Entry<Key,Value> kv = null;
        if (row.hasNext())

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

    Text row = Merge.getRandomRow(rand);
    log.info("Checking " + row);
    String user = state.getConnector().whoami();
    Authorizations auths = state.getConnector().securityOperations().getUserAuthorizations(user);
    Scanner scanner = state.getConnector().createScanner(Setup.getTableName(), auths);
    scanner = new IsolatedScanner(scanner);
    scanner.setRange(new Range(row));
    scanner.fetchColumnFamily(BulkPlusOne.CHECK_COLUMN_FAMILY);
    Value v = null;
    Key first = null;
    for (Entry<Key,Value> entry : scanner) {

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

    @Override
    public void run() {
      try {
        Random rand = new Random();


        Scanner scanner = new IsolatedScanner(conn.createScanner(table, Authorizations.EMPTY));


        for (int i = 0; i < 20; i++) {
          int numRows = rand.nextInt(10) + 1;


          ArrayList<ByteSequence> changes = new ArrayList<ByteSequence>(numRows);
          ArrayList<ConditionalMutation> mutations = new ArrayList<ConditionalMutation>();


          for (int j = 0; j < numRows; j++)
            changes.add(rows.get(rand.nextInt(rows.size())));


          for (ByteSequence row : changes) {
            scanner.setRange(new Range(row.toString()));
            Stats stats = new Stats(scanner.iterator());
            stats.set(rand.nextInt(10), rand.nextInt(Integer.MAX_VALUE));
            mutations.add(stats.toMutation());
          }


          ArrayList<ByteSequence> changed = new ArrayList<ByteSequence>(numRows);

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