IBM Data Platform Ideas Portal for Customers


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Status Future consideration
Workspace Spectrum LSF
Components Scheduling
Created by Guest
Created on Jul 29, 2026

RELATED IDEAS

Limit number of job modifications with bmod

Hi,
we allow the bmod/btop/bbottom commands for all users/jobs. However, we are facing 2 times the problem that the bmodbtop/bbottom command was extensively used e.g. on one job ID. This slows down the job scheduling interval massively up to a failed state. To harden LSF against such miss usage (or maybe attack) it would be useful to limit somehow the number of job modifications per job by a new parameter. An additional total limit of job modifications of jobs in the current queue would harden LSF too. Maybe a perfmon counter of job modifications is useful to identify problems early.

Needed By Quarter
  • Admin
    Bill McMillan
    Aug 3, 2026

    Such situations are relatively rare, but we agree that adding a limit to the number of times a job can be modified would harden replay. We will consider this in our future roadmap planning.

    Reply

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