FAS Research Computing - Cannon cluster down – Dettagli dell'incidente

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Status page for the Harvard FAS Research Computing cluster and other resources.

Cluster Utilization (VPN and FASRC login required): Cannon | FASSE


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Cannon cluster down

Risolto
Grave disservizio
Avviato il 4 mesi faDurato 66 ore 24 minuti

Componenti interessati

Cannon Cluster

Grave disservizio da 8:21 PM a 9:13 PM, Performance ridotte da 9:13 PM a 2:45 PM

SLURM Scheduler - Cannon

Grave disservizio da 8:21 PM a 9:13 PM, Performance ridotte da 9:13 PM a 2:45 PM

Cannon Compute Cluster (Holyoke)

Grave disservizio da 8:21 PM a 9:13 PM, Performance ridotte da 9:13 PM a 2:45 PM

Boston Compute Nodes

Grave disservizio da 8:21 PM a 9:13 PM, Performance ridotte da 9:13 PM a 2:45 PM

GPU nodes (Holyoke)

Grave disservizio da 8:21 PM a 9:13 PM, Performance ridotte da 9:13 PM a 2:45 PM

seas_compute

Grave disservizio da 8:21 PM a 9:13 PM, Performance ridotte da 9:13 PM a 2:45 PM

Aggiornamenti
  • Risolto
    UTC
    Risolto

    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.

  • Individuato
    UTC
    Individuato

    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.

  • Indagine in corso
    UTC
    Indagine in corso

    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