Map<OClusterPosition, byte[]> positionRecordMap = new HashMap<OClusterPosition, byte[]>();
Set<OClusterPosition> updatedPositions = new HashSet<OClusterPosition>();
ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
recordVersion.increment();
recordVersion.increment();
for (int i = 0; i < records; i++) {
int recordSize = mersenneTwisterFast.nextInt(2 * OClusterPage.MAX_RECORD_SIZE) + 1;
byte[] record = new byte[recordSize];
mersenneTwisterFast.nextBytes(record);