Updating to OSG 23¶

OSG 23 (the new series) aligns much more closely with HTCondor 23 and HTCondor-CE 23.

Compute Entrypoints should be updated to OSG 23 as soon as possible.
HTCondor pools and access points should be updated to OSG 23 as soon as possible.
All other services (e.g., OSG Worker Node clients, Frontier Squids) should be updated to OSG 23 as soon as possible.

Updating the OSG Repositories¶

Note

Before updating the OSG repository, be sure to turn off any OSG services. Consult the sections below that match your situation.

Clean the yum cache:

root@host # yum clean all --enablerepo=*

Disable to upcoming repository:

yum-config-manager --disable osg-upcoming

Remove the old series Yum repositories:
```
root@host # rpm -e osg-release
```
This step ensures that any local modifications to *.repo files will not prevent installing the new series repos. Any modified *.repo files should appear under /etc/yum.repos.d/ with the *.rpmsave extension. After installing the new OSG repositories (the next step) you may want to apply any changes made in the *.rpmsave files to the new *.repo files.
Update your Yum repositories to OSG 23
Update software:
```
root@host # yum update
```
Warning
- Please be aware that running yum update may also update other RPMs. You can exclude packages from being updated using the --exclude=[package-name or glob] option for the yum command.
- Watch the yum update carefully for any messages about a .rpmnew file being created. That means that a configuration file had been edited, and a new default version was to be installed. In that case, RPM does not overwrite the edited configuration file but instead installs the new version with a .rpmnew extension. You will need to merge any edits that have made into the .rpmnew file and then move the merged version into place (that is, without the .rpmnew extension).
Continue on to any update instructions that match the role(s) that the host performs.

Updating Your OSG Access Point¶

In OSG 23, some manual configuration changes may be required for an OSG Access Point (APs).

HTCondor¶

Consult the HTCondor upgrade section for details on updating your HTCondor configuration.

Restarting HTCondor¶

After updating your RPMs, restart your HTCondor service:

root@host # systemctl restart condor

Updating Your OSG Compute Entrypoint¶

The OSG 23 release series contains HTCondor-CE 23, a minor version upgrade from HTCondor-CE 6, which was available in the OSG 3.6 release repositories.

To upgrade your CE to OSG 23, follow the sections below.

Check for possible incompatibilities¶

Ensure that you have the latest HTCondor installed (either HTCondor 10.9.0 or HTCondor 10.0.9)
Run the condor_upgrade_check -ce script and address any issues found.
If you have an HTCondor batch system, also run the condor_upgrade_check script and address any issues found.
Also consult the upgrade documentation for more information.

Turning off CE services¶

Register a downtime
During the update, turn off the following services on your HTCondor-CE host:
```
root@host # systemctl stop condor-ce
```

Updating CE packages¶

For OSG CEs serving an HTCondor pool

If your OSG CE routes pilot jobs to a local HTCondor pool, also see the section for updating your HTCondor hosts

After turning off your CE's services, you may proceed with the repository and RPM update process.

Starting CE services¶

After updating your RPMs and updating your configuration, turn on the HTCondor-CE service:

root@host # systemctl start condor-ce

Updating Your HTCondor Hosts¶

HTCondor-CE hosts

Consult this section before updating the condor package on your HTCondor-CE hosts.

If you are running an HTCondor pool, consult the following instructions to update to HTCondor from OSG 23.

Ensure that you have the latest HTCondor installed (either HTCondor 10.9.0 or HTCondor 10.0.9).
Run the condor_upgrade_check script and address any issues found.
Also consult the HTCondor 23.0 upgrade instructions.

You may proceed with the repository and RPM update process.

Getting Help¶

To get assistance, please use the this page.