Out of Memory when reading large parquet file

Hi,

We are successfully reading parquet files block by block, and are running into a JVM out of memory issue in a certain edge case. Consider the following scenario:

Parquet file has one column and one block and is 10 GB

Our JVM is 5 GB

Is there any way to read such a file? Below is our implementation/stack trace
```java

Caused by: java.lang.OutOfMemoryError: Java heap space
at org.apache.parquet.hadoop.ParquetFileReader$ConsecutiveChunkList.readAll(ParquetFileReader.java:778)
at org.apache.parquet.hadoop.ParquetFileReader.readNextRowGroup(ParquetFileReader.java:511)

try {
ParquetMetadata readFooter = ParquetFileReader.readFooter(hfsConfig, path,
ParquetMetadataConverter.NO_FILTER);
MessageType schema = readFooter.getFileMetaData().getSchema();
long a = readFooter.getBlocks().stream().
reduce(0L, (left, right) -> left >
right.getTotalByteSize() ? left : right.getTotalByteSize(),
(leftl, rightl) -> leftl > rightl ? leftl : rightl);

for (BlockMetaData block : readFooter.getBlocks()) {
try {
fileReader = new ParquetFileReader(hfsConfig,
readFooter.getFileMetaData(), path, Collections
.singletonList(block), schema.getColumns());
PageReadStore pages;

while (null != (pages = fileReader.readNextRowGroup())) {
//exception gets thrown here on blocks larger than jvm memory
final long rows = pages.getRowCount();
final MessageColumnIO columnIO = new
ColumnIOFactory().getColumnIO(schema);
final RecordReader recordReader =
columnIO.getRecordReader(pages, new GroupRecordConverter(schema));

for (int i = 0; i < rows; i++) {
final Group group = recordReader.read();
int fieldCount = group.getType().getFieldCount();

for (int field = 0; field < fieldCount; field++) {
int valueCount = group.getFieldRepetitionCount(field);
Type fieldType = group.getType().getType(field);
String fieldName = fieldType.getName();

for (int index = 0; index < valueCount; index++) {
// Process data
}
}
}
}
} catch (IOException e) {
...
} finally {
...
}
}
```

**Reporter**: [Ryan Sachs](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=sachsry)

_{**Note**: *This issue was originally created as [PARQUET-1359](https://issues.apache.org/jira/browse/PARQUET-1359). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}

Beginne damit, den Parquet-Lesevorgang mit einer Spalte und 10 GB bei einer 5-GB-JVM nachzustellen, und verfolge ParquetFileReader.readNextRowGroup bis in ConsecutiveChunkList.readAll, den im Stacktrace angezeigten Stellen. Ermittle, ob erwartet wird, dass der Reader eine Row Group verarbeitet, die größer als der Heap ist, und definiere den Abschluss als ein dokumentiertes oder getestetes Verhalten, das den gemeldeten Out-of-Memory-Fehler vermeidet.

Vom Indexierungsmodell aus dem Issue-Text verfasst.