In i2b2 1.7.12, the cell properties have been moved to the database, in a table called hive_cell_params installed as part of the Hivedata.

Table of Contents

Cell URLs

Each cell must communicate with other cells. To facilitate this, you must set cell URL properties for each cell to accurately reflect the URL of the other cells. 

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These must be manually modified in the database by a SQL editor. Most installations require only a few changes. The most commonly modified parameters are documented below and a list of all configurable parameters is at the end of this page.

Agg Service Account Password (important!)

The AGG_SERVICE_ACCOUNT is an i2b2 user account used to run aggregate-counting queries in i2b2. These parameters should reflect the account name and password. We recommend changing the password. 

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It is also possible to change this password manually:

1. Login using the AGG_SERVICE_ACCOUNT account on the webclient and in the top right select change password
2. Update the hive_cell_param on using the following, where {password} is the password from step 1

update hive_cell_params set value='{password}' where param_name_cd='edu.harvard.i2b2.crc.pm.serviceaccount.password';

3. Restart i2b2

Cell URLs

Each cell must communicate with other cells. To facilitate this, the cell URL properties allow each cell to know the URL of the other cells. Generally these do not need to be configured, because the hostname and port are automatically determined by the server and the rest of the URL is required to remain as

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written. If you do want to manually specify the hostname and port, change the data type to a T and append this to the text value. (Data type U is automatically resolved into a URL.)

For example,

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could become

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Agg Service Account Password

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File Repository Cell Properties

13.4.3.3 Patient in Project Property

When setting up the i2b2 to work in your environment we highly recommend you change the default password for the AGG_SERVICE_ACCOUNT. Once you have changed the password you will need to redeploy JBoss. Please see Chapter 10.5 Deployment for additional information on how to deploy the CRC cell.

Reminder: The Ontology Cell also uses the AGG_SERVICE_ACCOUNT, therefore you need to also make the change in the ontology.properties.

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13.4.3.4 Other EMPI Service Properties

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Ontology Cell Properties (uncommon)

This uncommon change allows backward compatibility with i2b2 release 1.3.

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Appendix: All parameters

Below is a table of all configurable cell parameters and their default values. Data Type is T for text values, and U for URL values. URL values will automatically have protocol://hostname:port/ appended to the value, which is detected by the server. (For example, http://localhost:9090/)