---
title: 10.4.4.2.1 PDO Paging Properties
description: The Patient Data Object (PDO) is paged when the CRC returns it to the clients. There are several properties that can be edited to reflect the needs of your environment. For instance the paging observation size can be adjusted based…
url: "https://i2b2.org/docs/10-4-4-2-1-pdo-paging-properties/"
updated: "2026-09-15"
category: "i2b2 Installation Guide / Chapter 4. Server Install Guide / B. Legacy Approach - Build Each Cell from Source / Chapter 10. Data Repository (CRC) Cell Install / 10.4 Configuration / 10.4.4 Configure the CRC Properties / 10.4.4.2 Optional Performance Properties"
---

# 10.4.4.2.1 PDO Paging Properties

The Patient Data Object (PDO) is paged when the CRC returns it to the clients. There are several properties that can be edited to reflect the needs of your environment. For instance the paging observation size can be adjusted based on your runtime jvm settings.

1. In the **crc.properties** file scroll to the section called **PDO Paging properties**.

2. Update the PDO Paging properties to what will meet your needs.

  **PDO Paging properties**

edu.harvard.i2b2.crc.pdo.paging.observation.size=7500

edu.harvard.i2b2.crc.pdo.paging.iteration=100

edu.harvard.i2b2.crc.pdo.paging.inputlist.minpercent=20

edu.harvard.i2b2.crc.pdo.paging.inputlist.minsize=1

# Paging method can be SUBDIVIDE_INPUT_METHOD / AVERAGE_OBSERVATION_METHOD

edu.harvard.i2b2.crc.pdo.paging.method=SUBDIVIDE_INPUT_METHOD

3. Save your changes. You can close the file if you do not want to edit any more of the optional properties defined in the next few sections.