ParquetFileWriter w = new ParquetFileWriter(configuration, schema, path);
w.start();
HashMap<String, Integer> columnValuesWritten = new HashMap();
int valsWritten;
for (int k = 0; k < props.numberRowGroups; k++) {
w.startBlock(props.recordsPerRowGroup);
currentBooleanByte = 0;
booleanBitCounter.reset();
for (FieldInfo fieldInfo : props.fields.values()) {