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Support for upgrades.

by Joel Aufrecht
OpenACS docs are written by the named authors, and may be edited by OpenACS documentation staff.

Starting with Version 4.5, all OpenACS core packages support automatic upgrade. That means that, if you have OpenACS 4.5 or better, you should always be able to upgrade all of your core packages automatically. If you haven't changed anything, no manual intervention should be required. If you are running OpenACS prior to 4.5, upgrading will require manual effort.

Checklist

The required platform for OpenACS 4.6 is the same as 4.5, with the excepion of OpenFTS. You now need OpenFTS 0.3.2, not 0.2. OpenACS 4.6 does not support PostGreSQL 7.3.

Overview

OpenACS consists of files and a database schema. The files in the OpenACS 4.6 tarball include database upgrade scripts. To start the upgrade, replace your existing files with the new files and then restart the server. Then, browse to the APM, which will detect the new packages and offer to run the appropriate database upgrade scripts. After restarting the server again, the upgrade is complete.

Figure 5.1. Assumptions in this section

name of OpenACS usernsadmin
OpenACS server nameopenacs-dev
Root of OpenACS file tree/web/openacs-dev
Database backup directory/backup/openacs/

Upgrading on Linux/Unix

  1. Make a Backup. Back up the database and file system (see Section , “Snapshot backup and recovery”).

  2. OPTIONAL: Upgrade OpenFTS. OpenACS Full Text Search requires several pieces: the OpenFTS code, some database functions, and the OpenFTS Engine. If you have OpenFTS 0.2, you'll need to upgrade to to OpenFTS 0.3.2. This is backwards-compatible - completing this step will not break a working OpenFTS Engine from 4.5.

    1. Uninstall the old OpenFTS Engine

      1. Browse to http://yourserver/openfts.

      2. Click Administration.

      3. Click Drop OpenFTS Engine

    2. 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 postgres code

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

      su - nsadmin
psql openacs-dev -f /usr/local/pgsql/share/contrib/openfts.sql
psql openacs-dev -f /usr/local/src/postgresql-7.2.3/contrib/tsearch/tsearch.sql
exit

  3. Stop the server. 

    [root@localhost root]# svc -d /service/openacs-dev

  4. Upgrade the file tree. If you are using CVS, you will unpack the OpenACS 4.6 tarball into a working directory and then import that directory into cvs. If you have changed files in the core packages, cvs will attempt to merge your changes. You may have to manually merge some conflicts. When that's finished, you can update your normal development checkout directory and the new files will appear. If you aren't using CVS, you can unpack the tarball on top of your existing tree, but any customizations you've made to the kernel or core packages will be erased.

    • Upgrading files without CVS. Unpack the tarball into a new directory and copy its contents on top of your working directory.

      [root@localhost root]# su - nsadmin
[nsadmin@localhost aolserver]$ cd /web
[nsadmin@localhost web]$ tar xzf /tmp/openacs-4-6.tgz
[nsadmin@localhost web]$ cp -r openacs-4-6/* openacs-4
[nsadmin@localhost openacs-upgrade]$ exit
[root@localhost root]#

      su - nsadmin
cd /web
tar xzf /tmp/openacs-4-6.tgz
cp -r openacs-4-6/* openacs-4
exit

    • Upgrading files with CVS. 

      1. Unpack the new files into a working directory.

        [root@localhost root]# su - nsadmin
[nsadmin@localhost aolserver]$ cd /tmp
[nsadmin@localhost tmp]$ tar xzv openacs-4-6.tgz
[nsadmin@localhost tmp]$ cd openacs-4.6

        Import the new files into your cvs repository; where they match existing files, they will become the new version of the file.

        [nsadmin@localhost openacs-4.6]$  cvs import -m "upgrade to OpenACS 4.6" openacs 
OpenACS openacs-4-6

        Create a new directory as temporary working space to reconcile conflicts between the new files and your current work. The example uses the cvs keyword yesterday, making the assumption that you haven't checked in new code to your local tree in the last day.

        [nsadmin@localhost openacs-4.6]$  cd /web
[nsadmin@localhost tmp]$ mkdir openacs-upgrade
[nsadmin@localhost tmp]$ cvs checkout -d openacs-upgrade -jOpenACS:yesterday -jOpenACS openacs > cvs.txt 2>&1
(CVS feedback here)

        su - nsadmin
cd /tmp
tar xzv openacs-4-6.tgz
cd openacs-4.6
cvs import -m "upgrade to OpenACS 4.6" openacs OpenACS openacs-4-6
cd /tmp
mkdir openacs-upgrade
cvs checkout -d openacs-upgrade -jOpenACS:yesterday -jOpenACS openacs > cvs.txt 2>&1

      2. The file /tmp/openacs-upgrade/cvs.txt contains the results of the upgrade. If you changed files that are part of the OpenACS tarball and those changes conflict with the 4.5-4.6 upgrade, you'll have to manually reconcile them. Use the emacs command M-x sort-lines and then, for each line that starts with a C, open that file and manually resolve the conflict by deleting the excess lines. When you're finished, or if there aren't any conflicts, save and exit.

      3. Once you've fixed any conflicts, commit the new code to your local tree. 

        [nsadmin@localhost tmp]$ cd openacs-upgrade
[nsadmin@localhost openacs-upgrade]$ cvs commit -m "Upgraded to 4.6"

        cd openacs-upgrade
cvs commit -m "Upgraded to 4.6"

      4. Update your working tree with the new files. The CVS flags ensure that new directories are created and pruned directories destroyed.

        [nsadmin@localhost openacs-upgrade]$ cd /web/openacs-dev
[nsadmin@localhost openacs-dev]$ cvs up -Pd
(CVS feedback)
[nsadmin@localhost openacs-dev]$ exit
[root@localhost root]#

        cd /web/openacs-dev
cvs up -Pd
exit

  5. Start the server. 

    [root@localhost root]# svc -u /service/openacs-dev

  6. Use APM to upgrade the database. 

    1. Browse to the package manager, http://yourserver/acs-admin/apm.

    2. Click Install packages.

    3. Select the packages you want to install. This should be everything that says upgrade, plus any new packages you want. It's safest to upgrade the kernel by itself, and then come back and upgrade the rest of the desired packages in a second pass.

    4. On the next screen, click Install Packages

    5. When prompted, restart the server:

      [root@localhost root]# restart-aolserver openacs-dev

    6. Wait a minute, then browse to the package manager, http://yourserver/acs-admin/apm.

    7. Check that the kernel upgrade worked by clicking All and making sure that acs-kernel version is 5.0.0a4.

  7. 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@localhost root]# restart-aolserver openacs-dev

    6. Browse to http://yourserver/openfts

    7. Click Administration.

    8. Click Initialize OpenFTS Engine

  8. Rollback. If anything goes wrong, roll back to the backup snapshot.

($Id: upgrade-detail.html,v 1.11 2003/10/31 10:54:20 joela Exp $)
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