Upgrading Platform components

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Upgrading OpenFTS from 0.2 to 0.3.2

OpenACS Full Text Search requires several pieces: the OpenFTS code, some database functions, and the OpenFTS Engine. This section describes how to upgrade OpenFTS from 0.2 to 0.3.2 and upgrade the search engine on an OpenACS site at the same time.

Uninstall the old OpenFTS Engine from the service0 database.
1. Browse to http://yourserver/openfts.
2. Click Administration.
3. Click Drop OpenFTS Engine

Build and install the new OpenFTS driver and supporting tcl procedures. (This section of shell code is not fully documented; please exercise care.)

cd /usr/local/src/
          tar xzf /tmp/Search-OpenFTS-tcl-0.3.2.tar.gz
          chown -R root.root Search-OpenFTS-tcl-0.3.2/
          cd Search-OpenFTS-tcl-0.3.2/
          ./configure --with-aolserver-src=/usr/local/src/aolserver/aolserver --with-tcl=/usr/lib/
          cd aolserver/
          make

Back up the old fts driver as a precaution and install the newly compiled one

mv /usr/local/aolserver/bin/nsfts.so /usr/local/aolserver/bin/nsfts-0.2.so 
          cp nsfts.so /usr/local/aolserver/bin

Build and install the OpenFTS code for PostGresSQL

cd /usr/local/src/Search-OpenFTS-tcl-0.3.2/
          cp -r pgsql_contrib_openfts /usr/local/src/postgresql-7.2.3/contrib /usr/local/src/postgresql-7.2.3/contrib/pgsql_contrib_openfts
          make
          su - postgres
          cd tsearch/
          make
          make install
          exit

In order for the OpenACS 4.6 OpenFTS Engine to use the OpenFTS 0.3.2 driver, we need some commands added to the database.

[root root]# su - service0
          [service0 dev]$ psql service0 -f /usr/local/pgsql/share/contrib/openfts.sql
          CREATE
          CREATE
          [service0 dev]$ psql service0 -f /usr/local/src/postgresql-7.2.3/contrib/tsearch/tsearch.sql
          BEGIN
          CREATE
          (~30 more lines)
          [service0 dev]$ exit
          [root root]# 
          su - service0
          psql service0 -f /usr/local/pgsql/share/contrib/openfts.sql
          psql service0 -f /usr/local/src/postgresql-7.2.3/contrib/tsearch/tsearch.sql
          exit

OPTIONAL: Install the new OpenFTS Engine. If you want to upgrade the OpenFTS Engine, do these steps. (You must have already upgraded the OpenFTS driver to 0.3.2.)
1. Browse to http://yourserver/admin/site-map
2. On the openfts line, click on set parameters.
3. Change the value of openfts_tcl_src_path from /usr/local/src/Search-OpenFTS-tcl-0.2/ to /usr/local/src/Search-OpenFTS-tcl-0.3.2/
4. Click Set Parameters
5. ```
[root root]# restart-aolserver service0
```
6. Browse to http://yourserver/openfts
7. Click Administration.
8. Click Initialize OpenFTS Engine

Upgrading from PostGreSQL 7.2 to 7.3

An OpenACS database created in PostGreSQL 7.2 will not work correctly in PostGreSQL 7.3. This is because 7.2 truncates function names to 31 characters, but 7.3 does not. This does not cause problems in 7.2, because truncation occurs both at function creation and at function calling, so they still match. But if you use a database created in 7.2 in 7.3, the function names in the database remain truncated but the function calls are not, and so they don't match. Also some functions use casting commands that no longer work in 7.3 and these functions must be recreated.

To upgrade an OpenACS site from PostGreSQL 7.2 to 7.3, first upgrade the kernel to 4.6.3. Then, dump the database, run the upgrade script /var/lib/aolserver/service0/bin/pg_7.2to7.3_upgrade_helper.pl on the dump file, and reply the dump. See Forum OpenACS Q&A: PG 7.2->7.3 upgrade gotcha?. Example:

Back up the database as per PostgreSQL.

Run the upgrade script on the backup file.

[root root]# su - service0
          [service0 service0]# cd /var/lib/aolserver/service0/bin
          [service0 bin]$ ./pg_7.2to7.3_upgrade_helper.pl \
          ../database-backup/nightly.dmp \
          ../database-backup/upgrade-7.3.dmp \
          /var/lib/aolserver/service0
          ==================================================================
          looking for function acs_object__check_object_ancest in oacs
          grep result: /var/lib/aolserver/aufrecht-dev/packages/acs-kernel/sql/postgresql/acs-objects-create.sql:create function acs_object__check_object_ancestors (integer,integer,integer)

          replacing acs_object__check_object_ancest with acs_object__check_object_ancestors

          (many lines omitted)
          [service0 bin]$

Use perl to replace timestamp with timestamptz in the dump file.

find . -type f -name "*sql" | xargs perl -p -i.tmp -e "s/timestamp with time zone/timestamptz/g"
          find . -type f -name "*sql" | xargs perl -p -i.tmp -e "s/\\wtimestamp[^t]/ timestamptz/g"

Create a new user for PostgreSQL 7.3.x, as per the Postgres installation guide. Keep in mind that your installation location is different, and your startup script (/etc/init.d/postgres73 should be named differently. You might even need to edit that file to make the paths correct)
Install PostgreSQL 7.3.x. Note that you PostgreSQL must listen on a different port in order to work correctly, so you'll need to edit the configuration file (/usr/local/pgsql73/data/postgresql.conf) and change the port (to 5433, say). create a second postgres user to differentiate between the two postgres installs. When you do ./configure, you'll need to include --prefix=$HOME to ensure that it is installed in the postgres73 user's home directory.
Change the path in service0's .bashrc or .bash_profile (or both) files to reflect the new postgres73 user directory.
Restore the database from dump as per the recovery instructions.

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