This is not the answer here. However check that controller mode and worker nodes are in time sync. As I remember if they are out of sync a connection is refused.
On Wed, Jun 17, 2026, 6:09 AM Brian Andrus via slurm-users < [email protected]> wrote: > Double check the actual running version. I had that when I tried to > start a too-new slurmd/sackd against an older slurmctld that was still > running. > > Brian Andrus > > On 6/15/2026 10:11 PM, allspace--- via slurm-users wrote: > > download slurm-26.05.1.tar.bz2 and build it on Ubuntu 22.04.5 LTS. Use > it as controller node. > > download slurm-26.05.1.tar.bz2 and build it on Debian GNU/Linux 12. Use > it as compute node(node-3). > > > > Run command "srun -w node-3 hostname" on controller node, got the > following error message: > > > > srun: error: Task launch for StepId=10.0 failed on node node-3: Header > lengths are longer than data received > > srun: error: Application launch failed: Header lengths are longer than > data received > > srun: Job step aborted > > > > Here is the logs on node-3: > > > > [2026-06-16T12:45:20.645] error: _verify_signature: failed decode > > [2026-06-16T12:45:20.645] error: Malformed RPC of type > REQUEST_LAUNCH_TASKS(6001) received > > [2026-06-16T12:45:20.653] error: slurm_unpack_msg_and_forward: [ > 192.168.245.1:59308] failed: Header lengths are longer than data received > > [2026-06-16T12:45:20.663] error: wrap_on_data: [192.168.245.133:6818(fd:13)] > on_data returned rc: Header lengths are longer than data received > > > > How can I fix this problem? > > Thanks > > > > -- > slurm-users mailing list -- [email protected] > To unsubscribe send an email to [email protected] >
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