FAS Research Computing - Cannon cluster down – Detalhes do incidente

Experimentando uma pequena interrupção

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Cannon cluster down

Resolvido
Interrupção grave
Início há 5 mesesDurado 66 horas 24 minutos

Afetado

Cannon Cluster

Interrupção grave de 8:21 PM para 9:13 PM, Desempenho degradado de 9:13 PM para 2:45 PM

SLURM Scheduler - Cannon

Interrupção grave de 8:21 PM para 9:13 PM, Desempenho degradado de 9:13 PM para 2:45 PM

Cannon Compute Cluster (Holyoke)

Interrupção grave de 8:21 PM para 9:13 PM, Desempenho degradado de 9:13 PM para 2:45 PM

Boston Compute Nodes

Interrupção grave de 8:21 PM para 9:13 PM, Desempenho degradado de 9:13 PM para 2:45 PM

GPU nodes (Holyoke)

Interrupção grave de 8:21 PM para 9:13 PM, Desempenho degradado de 9:13 PM para 2:45 PM

seas_compute

Interrupção grave de 8:21 PM para 9:13 PM, Desempenho degradado de 9:13 PM para 2:45 PM

Atualizações
  • Resolvido
    UTC
    Resolvido

    Slurm crashed on 4:30p on Friday due to a user running a large sacct query against the Slurm database. This caused the database host to run out of memory and crash the scheduler. To prevent this from reoccurring we are reducing the time range that users are permitted to query at one time to 7 days. Thus if you need to cover a month you would need to query in four 7 day increments.

    We do ask users to be judicious in their querying of the Slurm. Only ask for those fields that you require. Please also ensure any AI agents you have running limit their queries appropriately.

  • Identificado
    UTC
    Identificado

    To temporarily stabilize the situation, we have reduced the maximum query time for sacct and other Slurm commands to be 1 day. We have filed a ticket with SchedMD to further analyze the issue.

    The cluster is back up and the scheduler is accepting new jobs.

    We will continue to monitor for emergencies over the weekend, and resume in-depth troubleshooting on Monday.

  • A investigar
    UTC
    A investigar

    The Slurm scheduler is experiencing an error which is impacting jobs. The Cannon cluster will be inaccessible while we troubleshoot.

    We are currently investigating this incident.

For issues not shown here, please contact FASRC via
https://portal.rc.fas.harvard.edu or email rchelp@rc.fas.harvard.edu