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+Enabling cgroups v2
+
+
+The JAliEn job-pilot can use cgroups v2 to better box-in each job, preventing misbehaving jobs from overusing resources and interrupting other payloads. Support for this feature will depend on OS/distribution and LRMS, but generally require:
+
+* **EL9**
+and
+* **HTCondor 23.1+**
+or
+* **Slurm 22.05+***
+
+*Slurm requires a workaround which involves having whole-node scheduling, and enabling *lingering* on the WNs. This can be done by running `touch /var/lib/systemd/linger/$USER`, where $USER is to be replaced with the user associated with ALICE, e.g. `aliprod`.
+
+**NOTE**: EL9 will delegate resource controllers for *memory* and *pids* by default, but **not**  for *cpu*, *cpuset* and *io*. In order for JAliEn to access these, the following must be added to the file `/etc/systemd/system/user@.service.d/delegate.conf`:
+
+```
+[Service]
+Delegate=cpu cpuset io memory pids
+```
+
+Followed by a reboot.
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