The OME team is committed to providing frequent, project-wide upgrades both with bug fixes and new functionality. We try to make the schedule for these releases as public as possible. You may want to take a look at the Trello boards for exactly what will go into a release. See also OMERO.web upgrade.
See the full details of OMERO 5.6.2 features in the CHANGELOGS.
This guide aims to be as definitive as possible so please do not be put off by the level of detail; upgrading should be a straightforward process.
If you are upgrading from a version prior to OMERO 5.5 then you must also study the upgrade instructions for those prior versions because they may describe important steps that these instructions assume to already have been done by OMERO 5.5 users. Before proceeding with these instructions you may first need to read the instructions for upgrading to OMERO 5.5 because some extra steps may be required beyond simply running the SQL upgrade scripts described below.
Before starting the upgrade, please ensure that you have reviewed and satisfied all the system requirements with correct versions for installation. In particular, ensure that you are running a suitable version of PostgreSQL to enable successful upgrading of the database, otherwise the upgrade script aborts with a message saying that your database server version is less than the OMERO prerequisite.
You may wish to review the open file limits. Please consult the Too many open file descriptors section for further details.
The passwords and logins used here are examples. Please consult the Which user account and password do I use where? section for explanation. In particular, be sure to replace the values of db_user and omero_database with the actual database user and database name for your installation.
All cached Bio-Formats memoization files created at import time will be invalidated by the server upgrade. This means the very first loading of each image after upgrade will be slower. After re-initialization, a new memoization file will be automatically generated and OMERO will be able to load images in a performant manner again.
These files are stored under
BioFormatsCache in the OMERO data
/OMERO/BioFormatsCache. You may see error messages in
your log files when an old memoization file is found; to avoid these messages
delete everything under this directory before starting the upgraded server.
It is possible to regenerate the memoization files before the user loads an image for the first time. For more information, read MemoFileRegenerationReadMe.md.
If you encounter errors during an OMERO upgrade, database upgrade, etc., you should retain as much log information as possible and notify the OMERO.server team via the mailing lists available on the support page.
For all users, the basic workflow for upgrading your OMERO.server is listed below. Please refer to each section for additional details.
There is a
precheck SQL script provided that performs various database
checks to verify readiness for upgrade. The precheck script works even
with the OMERO server running so it may be used before downtime for the
actual upgrade is scheduled. Issues that the script reports will need to
be resolved before the upgrade may proceed. The precheck script will
not make any changes to the database: it merely performs various
precautionary checks also done by the actual upgrade script.
$ cd OMERO.server $ psql -h localhost -U db_user omero_database < sql/psql/OMERO5.4__0/OMERO5.3__1-precheck.sql Password for user db_user: ... ... status --------------------------------------------------------------------- + + + YOUR DATABASE IS READY FOR UPGRADE TO VERSION OMERO5.4__0 + + + (1 row)
referenced by the above psql command assumes a planned
upgrade from OMERO 5.3.4. If you are instead currently running OMERO
5.3.3 or an earlier 5.3.x version then you perform the precheck by
using the above command with
sql/psql/OMERO5.4__0/OMERO5.3__0-precheck.sql. That script
verifies that the database contains no trace of
2017-SV5-filename-2 having been exploited; this
vulnerability was fixed in OMERO 5.3.4.
The first thing to do before any upgrade activity is to backup your database.
$ pg_dump -h localhost -U db_user -Fc -f before_upgrade.db.dump omero_database
Before copying the new binaries, stop the existing server:
$ cd OMERO.server $ omero admin stop
Your OMERO configuration is stored using
config.xml in the
etc/grid directory under your OMERO.server directory. Assuming you
have not made any file changes within your OMERO.server distribution
directory, you are safe to follow the following upgrade procedure:
$ cd .. $ mv OMERO.server OMERO.server-old $ unzip OMERO.server-5.6.2-ice36-byy.zip $ ln -s OMERO.server-5.6.2-ice36-byy OMERO.server $ cp OMERO.server-old/etc/grid/config.xml OMERO.server/etc/grid
byy needs to be replaced by the appropriate build number of OMERO.server.
This section only concerns users upgrading from a 5.3 or earlier server. If upgrading from a 5.4 or 5.5 server, you do not need to upgrade the database.
Ensure Unicode character encoding¶
OMERO requires a Unicode-encoded database; without it, the upgrade
script aborts with a message warning how the
OMERO database character
encoding must be UTF8. From psql:
# SELECT datname, pg_encoding_to_char(encoding) FROM pg_database; datname | pg_encoding_to_char ------------+--------------------- template1 | UTF8 template0 | UTF8 postgres | UTF8 omero | UTF8 (4 rows)
Alternatively, simply run psql -l and check the output. If
your OMERO database is not Unicode-encoded with
UTF8 then it must be
If you have the pg_upgradecluster command available then its
--locale option can effect the change in encoding. Otherwise,
create a Unicode-encoded dump of your database: dump it as before but to a different dump file and with an additional
-E UTF8 option. Then, create a Unicode-encoded database for
OMERO and restore that dump into it with pg_restore,
similarly to effecting a rollback. If required
to achieve this, the
-E UTF8 option is accepted by both
initdb and createdb.
Run the upgrade script¶
You must use the same username and password you have defined during OMERO.server installation. For a large production system you should plan for the fact that the upgrade script may take several hours to run.
$ cd OMERO.server $ psql -h localhost -U db_user omero_database < sql/psql/OMERO5.4__0/OMERO5.3__1.sql Password for user db_user: ... ... status --------------------------------------------------------------------- + + + YOU HAVE SUCCESSFULLY UPGRADED YOUR DATABASE TO VERSION OMERO5.4__0 + + + (1 row)
If you are upgrading from a server earlier than 5.3, then you must run the earlier upgrade scripts in sequence before the one above. There is no need to download and run the server from an intermediate major release but you must still study the upgrade instructions for earlier versions in case there are additional steps. For example, any optional SQL scripts that affect the database probably run only on the specific version before the next upgrade script.
If you perform the database upgrade using SQL shell, make sure you are connected to the database using db_user before running the script. See this forum thread for more information.
sql/psql/OMERO5.4__0/OMERO5.3__1.sql script referenced by
the above psql command assumes upgrade from OMERO 5.3.4.
If you are instead currently running OMERO 5.3.3 or an earlier 5.3.x
version then you upgrade the database directly to OMERO 5.4.0 by
using the above command with
Optimize an upgraded database (optional)¶
After you have run the upgrade script, you may want to optimize your database which can both save disk space and speed up access times.
$ psql -h localhost -U db_user omero_database -c 'VACUUM FULL VERBOSE ANALYZE;'
If any new official scripts have been added under
lib/scripts or if
you have modified any of the existing ones, then you will need to backup
your modifications. Doing this, however, is not as simple as copying the
directory over since the core developers will have also improved these
For further information on managing your scripts, refer to OMERO.scripts. If you require help, please contact the OME developers.
If you changed the directory name where the 5.6.2 server code
resides, make sure to update any system environment variables. Before
restarting the server, make sure your
PATH system environment
variable is pointing to the new location.
While upgrading the server you should keep OMERO.py dependencies up to date to ensure that security updates are applied:
$ # first, activate virtualenv where omero-py is installed. Then upgrade: $ pip install --upgrade 'omero-py>=5.7.1'
Following a successful database upgrade, you can start the server.
$ omero admin start
If anything goes wrong, please send the output of omero admin diagnostics to email@example.com.
If the upgraded database or the new server version do not work for you, or you otherwise need to rollback to a previous database backup, you may want to restore a database backup. To do so, create a new database,
$ createdb -h localhost -U postgres -E UTF8 -O db_user omero_from_backup
restore the previous archive into this new database,
$ pg_restore -Fc -d omero_from_backup before_upgrade.db.dump
and configure your server to use it.
$ omero config set omero.db.name omero_from_backup