FAS Research Computing - Cannon cluster down – Détails de l'incident

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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

Résolu
Panne majeure
A commencé il y a environ 2 moisA duré 3 jours

Concernés

Cannon Cluster

Panne majeure depuis 8:21 PM à 9:13 PM, Performances dégradées depuis 9:13 PM à 2:45 PM

SLURM Scheduler - Cannon

Panne majeure depuis 8:21 PM à 9:13 PM, Performances dégradées depuis 9:13 PM à 2:45 PM

Cannon Compute Cluster (Holyoke)

Panne majeure depuis 8:21 PM à 9:13 PM, Performances dégradées depuis 9:13 PM à 2:45 PM

Boston Compute Nodes

Panne majeure depuis 8:21 PM à 9:13 PM, Performances dégradées depuis 9:13 PM à 2:45 PM

GPU nodes (Holyoke)

Panne majeure depuis 8:21 PM à 9:13 PM, Performances dégradées depuis 9:13 PM à 2:45 PM

seas_compute

Panne majeure depuis 8:21 PM à 9:13 PM, Performances dégradées depuis 9:13 PM à 2:45 PM

Mises à jour
  • Résolu
    UTC
    Résolu

    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.

  • Identifié
    UTC
    Identifié

    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.

  • Détecté
    UTC
    Détecté

    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