Implementation of Limit on Number of Job Submissions per User

2025-01-16

We apologize for the inconvenience caused by the recent job scheduler failure.

We have confirmed that one of the causes of this outage was that a large number of jobs were submitted in a short period of time due to user error.
In order to prevent the same kind of error from spreading to the entire system in the future, we will start limiting the number of job submissions as follows

  • Limit on the number of simultaneous job submissions per user: 2000 jobs
    • This includes running jobs and jobs waiting for execution, but does not include jobs that have finished execution.
    • If the limit is reached, an error will occur when executing commands such as qsub.
    • The above limits are set to prevent system downtime, and do not mean that you may submit up to this number of jobs.
      Please cooperate in reducing the scheduler load by consolidating jobs to the extent possible.
  • Implementation date: 2025-01-17 10:00

Thank you for your understanding and cooperation.