[slurm-users] Slurm version 23.11.2 is now available

[Tim McMullan]

We are pleased to announce the availability of Slurm version 23.11.2.

The 23.11.2 release includes a number of fixes to stability and various 
bug fixes. Some notable changes include several fixes to the new 
scontrol reconfigure method, including one that could result in jobs 
getting cancelled prematurely, a couple errors that resulted in the 
backup slurmctld stopping on fail-back, and an issue during upgrades 
with older MySQL versions with a small max_allowed_packet value for 
sites with a large number of associations.

Slurm can be downloaded from https://www.schedmd.com/downloads.php .

-Tim


> * Changes in Slurm 23.11.2
> ==========================
>  -- slurmrestd - Reject single http query with multiple path requests.
>  -- Fix launching Singularity v4.x containers with srun --container by setting
>     .process.terminal to true in generated config.json when step has
>     pseudoterminal (--pty) requested.
>  -- Fix loading in dyanmic/cloud node jobs after net_cred expired.
>  -- Fix cgroup null path error on slurmd/slurmstepd tear down.
>  -- data_parser/v0.0.40 - Prevent failure if accounting is disabled, instead
>     issue a warning if needed data from the database can not be retrieved.
>  -- openapi/slurmctld - Prevent failure if accounting is disabled.
>  -- Prevent slurmscriptd processing delays from blocking other threads in
>     slurmctld while trying to launch various scripts. This is additional work
>     for a fix in 23.02.6.
>  -- Fix memory leak when receiving alias addrs from controller.
>  -- scontrol - Accept `scontrol token lifespan=infinite` to create tokens that
>     effectively do not expire.
>  -- Avoid errors when Slurmdb accounting disabled when '--json' or '--yaml' is
>     invoked with CLI commands and slurmrestd. Add warnings when query would
>     have populated data from Slurmdb instead of errors.
>  -- Fix slurmctld memory leak when running job with --tres-per-task=gres:shard:#
>  -- Fix backfill trying to start jobs outside of backfill window.
>  -- Fix oversubscription on partitions with PreemptMode=OFF.
>  -- Preserve node reason on power up if the node is downed or drained.
>  -- data_parser/v0.0.40 - Avoid aborting when invoking a not implemented
>     parser.
>  -- data_parser/v0.0.40 - Fix how nice values are parsed for job submissions.
>  -- data_parser/v0.0.40 - Fix regression where parsing error did not result in
>     invalid request being rejected.
>  -- Fix segfault in front-end node registration.
>  -- Prevent jobs using none typed gpus from being killed by the controller after
>     a reconfig or restart.
>  -- Fix deadlock situation in the dbd when adding associations.
>  -- Update default values of text/blob columns when updating from old mysql
>     versions in more situations.  This improves a previous fix to handle an
>     uncommon case when upgrading mysql/mariadb.
>  -- Fix rpmbuild in openSUSE/SLES due to incorrect mariadb dependency.
>  -- Fix compilation on RHEL 7.
>  -- When upgrading the slurmdbd to 23.11, avoid generating a query to update
>     the association table that is larger than max_allowed_packet which would
>     result in an upgrade failure.
>  -- Fix rare deadlock when a dynamic node registers at the same time that a
>     once per minute background task occurs.
>  -- Fix build issue on 32-bit systems.
>  -- data_parser/v0.0.40 - Fix enumerated strings in OpenAPI specification not
>     have type field specified.
>  -- Improve scontrol show job -d information of used shared gres (shard/mps)
>     topology.
>  -- Allow Slurm to compile without MUNGE if --without-munge is used as an
>     argument to configure.
>  -- accounting_storage/mysql - Fix usage query to use new lineage column
>     instead of lft/rgt.
>  -- slurmrestd - Improve handling of missing parsers when content plugins
>     expect parsers not loaded.
>  -- slurmrestd - Correct parsing of StepIds when querying jobs.
>  -- slurmrestd - Improve error from parsing failures of lists.
>  -- slurmrestd - Improve parsing of singular values for lists.
>  -- accounting_storage/mysql - Fix PrivateData=User when listing associations.
>  -- Disable sorting of dynamic nodes to avoid issues when restarting with
>     heterogenous jobs that cause jobs to abort on restart.
>  -- Don't allow deletion of non-dynamic nodes.
>  -- accounting_storage/mysql - Fix issue adding partition based associations.
>  -- Respect non-"slurm" settings for I_MPI_HYDRA_BOOTSTRAP and HYDRA_BOOTSTRAP
>     and avoid injecting the --external-launcher option which will cause
>     mpirun/mpiexec to fail with an unexpected argument error.
>  -- Fix bug where scontrol hold would change node count for jobs with
>     implicitly defined node counts.
>  -- data_parser/v0.0.40 - Fix regression of support for "hold" in
>     job description.
>  -- Avoid sending KILL RPCs to unresolvable POWERING_UP and POWERED_DOWN nodes.
>  -- data_parser/v0.0.38 - Fix several potential NULL dereferences that could
>     cause slurmrestd to crash.
>  -- Add --gres-flags=one-task-per-sharing. Do not allow different tasks in to be
>     allocated shared gres from the same sharing gres.
>  -- Add SelectTypeParameters=ENFORCE_BINDING_GRES and ONE_TASK_PER_SHARING_GRES.
>     This gives default behavior for a job's --gres-flags.
>  -- Alter the networking code to try connecting to the backup controllers
>     if the DNS lookup for the primary SlurmctldHost fails.
>  -- Alter the name resolution to only log at verbose() in client commands
>     on failures. This allows for HA setups where the DNS entries are withdrawn
>     for some SlurmctldHost entries without flooding the user with errors.
>  -- Prevent slurmscriptd PID leaks when running slurmctld in foreground mode.
>  -- Open all slurmctld listening ports at startup, and persist throughout.
>     This also changes the backup slurmctld process to open the SlurmctldPort
>     range, instead of only the first.
>  -- Fix backup slurmctld shutting down instead of resuming standby duty if it
>     took control.
>  -- Fix race condition that delayed the primary slurmctld resuming when taking
>     control from a backup controller.
>  -- srun - Ensure processed messages are meant for this job in case of a
>     rapidly-reused TCP port.
>  -- srun - Prevent step launch failure while waiting for step allocation if
>     a stray message is received.
>  -- Fix backup slurmctld to be able to respond to configless config file
>     requests correctly.
>  -- Fix slurmctld crashing when recovering from a failed reconfigure.
>  -- Fix slurmscriptd operation after recovering from a failed reconfigure.

-- 
Tim McMullan
Release Management, Support, and Development
SchedMD LLC - Commercial Slurm Development and Support