Backing up HDSI server database

Purpose: You wish to perform a complete backup of the OpenIZ primary data store, or a data store which OpenIZ uses.

Introduction: Backing up your database server is a routine procedure and should be performed on an automated schedule. This article will guide system administrators through the backup and restore process.

Applies To:

• OpenIZ Immunization Management Server (running PostgreSQL database)

Steps:

1. Open the C:\Program Files (x86)\Mohawk College\OpenIZ\openiz.exe.config file in a text edit

2. Navigate to the <connectionStrings> section and note the server, username and password for your primary OpenIZ connection string. For example, the connection below is pointing to localhost with username postgres and password postgres.

       <add name="PSQL_CLIN" 
          connectionString="server=localhost; database=openiz_staging; user id=postgres; password=postgres; " 
          providerName="Npgsql"/>

3. Open a command prompt and navigate to C:\Program Files\PostgreSQL\9.4\bin (note: if you are using the bundled installation of OpenIZ your directory may be C:\Program Files (x86)\Mohawk College\OpenIZ\PostgreSQL\bin)

4. Stop the OpenIZ service by typing : net stop openiz

5. Type the following command:

   C:\Program Files\PostgreSQL\9.4\bin>pg_dump -h localhost -U postgres -W --dbname=openiz_staging > c:\temp\mybackup.sql
   Password:

   1. Enter your password when prompted

6. Restart the OpenIZ service by typing : net start openiz

If you need to restore a backup use the following instructions:

1. Open a command prompt and navigate to C:\Program Files\PostgreSQL\9.4\bin (note: if you are using the bundled installation of OpenIZ your directory may be C:\Program Files (x86)\Mohawk College\OpenIZ\PostgreSQL\bin)

2. Stop the openiz service by executing : net stop openiz

3. Run the command psql -U postgres -W -h localhost

4. Optional: In the SQL command prompt rename the current copy of your database to another name (this will preserve the database in the server)

   postgres=# alter database openiz_staging rename to openiz_original;
   ALTER DATABASE

5. Create a new database to which to restore the backup: (note: lines prefixed with postgres=# are the inputs)

   postgres=# create database openiz_staging owner postgres;
   CREATE DATABASE
   postgres=# \c openiz_staging
   Password for user postgres:
   WARNING: Console code page (437) differs from Windows code page (1252)
            8-bit characters might not work correctly. See psql reference
            page "Notes for Windows users" for details.
   You are now connected to database "openiz_staging" as user "postgres".
   openiz_staging=#

6. Restore the database by using the \i command

   openiz_staging=# \i /temp/mybackup.sql

   1. You may encounter errors on the first run, this is due to pg_dump not adhering to foreign key constraints. If you receive an error such as that listed below, simply re-run the above command a second time:

   2. psql:/temp/mybackup.sql:435254: ERROR:  new row for relation "act_ptcpt_tbl" violates check constraint "ck_act_ptcpt_rol_cd"
      DETAIL:  Failing row contains (6689a586-3c42-4a2d-bbdc-bec0843856ef, 41b008a6-fcf8-40bc-ab96-7567e94bcf8f, 74baee85-6e99-43d5-95ef-bc70edd0b554, 1, null, null, 99e77288-cb09-4050-a8cf-385513f32f0a, 0).
      CONTEXT:  COPY act_ptcpt_tbl, line 1: "6689a586-3c42-4a2d-bbdc-bec0843856ef     41b008a6-fcf8-40bc-ab96-7567e94bcf8f    74baee85-6e99-43d5-95ef-bc..."
      COPY 0

7. Start the OpenIZ host process by running net start openiz