Parallels H-Sphere Documentation System Administrator Guide

 

Converting H-Sphere Database To UNICODE

 
 

Related Docs:   Upgrading System Postgres To Version 7.3

Last modified: 27 Dec 2007

 

WARNING: This documentation covers Parallels H-Sphere versions up to 3.1. For the latest up-to-date Parallels H-Sphere documentation, please proceed to the official Parallels site.

The system database must be in UNICODE (UTF-8). To convert your database to Unicode:

 

Step 1. Stop the control panel

Log in as root and stop the control panel:

For Linux:

/etc/rc.d/init.d/httpdcp stop
killall -9 java

For FreeBSD:

/usr/local/etc/rc.d/apachecp.sh stop
killall -9 java

 

Step 2. Find out your current database encoding

To find the encoding, type:

su -l cpanel -c 'psql hsphere'
hsphere# \encoding

If the encoding is UNICODE (UTP-8), you've found what you need. If not, the next step is to dump H-Sphere system database.

 

Step 3. Dump H-Sphere system database

  1. Create and enter backup directory:

    mkdir pg_backup
    cd pg_backup
  2. Get the password for wwwuser. You'll need it to query the database:

    cat ~cpanel/shiva/psoft_config/hsphere.properties | grep PASS
  3. Dump H-Sphere system database.

    Export schema:

    pg_dump -u -s -f schema.db hsphere
    chmod 600 schema.db
    cp -p schema.db schema_backup.db

    Export data:

    pg_dump -u -a -f data.db hsphere
    chmod 600 data.db
    cp -p data.db data_backup.db

    Notes:

    • If your system database is large, the dump can take several hours to complete. You can speed it up by setting

      fsync=off
      in postgresql.conf. When you are done, unset this option back for safety reasons.

    • The dump file is created with 644 permissions by default; you need to set more secure 600 permissions to prevent the data from being read by other users.

  4. For additional security, you may disallow access to the backup directory for all other users:
    chmod 700 .

 

Step 4. Convert the dump to UNICODE

Convert the dump into Unicode with the iconv utility.

Linux:
iconv --from-code=<REGIONAL_ENCODING> --to-code=UTF-8 -o utf_data.db data.db
mv utf_data.db data.db
FreeBSD:
iconv -f <REGIONAL_ENCODING> -t UTF-8 data.db > utf_data.db
mv utf_data.db data.db
[-] If your dump file exceeds 2GB
1) Split it into smaller files, 1GB each:
split -b 1024m data.db data_db
2) Run iconvfor for each of these files to convert them to UNICODE:
iconv --from-code=<REGIONAL_ENCODING>--to-code=UTF-8 -o utf_data_db.aa data_db.aa
iconv --from-code=<REGIONAL_ENCODING>--to-code=UTF-8 -o utf_data_db.ab data_db.ab
...
3) Join them back into data.db:
cat utf_data_db.aa utf_data_db.ab utf_data_db.ac ... > data.db

Here, <REGIONAL_ENCODING> is the source encoding. For example, for native US English encoding:

Linux:
iconv --from-code=ISO-8859-1 --to-code=UTF-8 -o utf_data.db data.db
FreeBSD:
iconv -f ISO-8859-1 -t UTF-8 data.db > utf_data.db

The resulting data.db file will contain the data converted to Unicode.

For better security, run the following command:
chmod 600 data.db

 

Step 5. Save the postgres directory in a backup location

  1. Stop the database:

    For Linux:

    /etc/rc.d/init.d/postgresql stop
    For FreeBSD:
    /usr/local/etc/rc.d/010.pgsql.sh stop
  2. Save the postgres directory:

    For Linux:

    cp -pR ~postgres/data ./
    For FreeBSD:
    cp -pR ~pgsql/data ./
  3. Start the database:

    For Linux:

    /etc/rc.d/init.d/postgresql start
    For FreeBSD:
    /usr/local/etc/rc.d/010.pgsql.sh start

 

Step 6. Recreate H-Sphere database

  1. Delete old H-Sphere database:

    # su -l cpanel
    $ dropdb hsphere
  2. Create database:

    createdb -E UNICODE -U wwwuser hsphere
  3. Create H-Sphere DB schema:
    psql -q -U wwwuser -f schema.db hsphere
  4. Import H-Sphere system data:
    psql -q -U wwwuser -f data.db hsphere
    Note: If you face problems with importing data, please see the Troubleshooting section in CP Acceleration guide.

  5. If you added
  6. fsync=off
    to postgresql.conf, don't forget to delete it
  7. Start the Control Panel.

Related Docs:   Upgrading System Postgres To Version 7.3



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