HS001 - Backing up IMS 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

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