FAS Research Computing - Cannon cluster down – Details zu Vorfällen

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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


Please scroll down to see details on any Incidents or maintenance notices.
Monthly maintenance occurs on the first Monday of the month (except holidays).

GETTING HELP
Documentation: https://docs.rc.fas.harvard.edu | Account Portal https://portal.rc.fas.harvard.edu
Email: rchelp@rc.fas.harvard.edu | Support Hours

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Cannon cluster down

Gelöst
Schwerer Ausfall
Aufgetreten am vor 4 MonatenDauerte 66 Stunden 24 Minuten

Betroffen

Cannon Cluster

Schwerer Ausfall aus 8:21 PM zu 9:13 PM, Beeinträchtigte Leistung aus 9:13 PM zu 2:45 PM

SLURM Scheduler - Cannon

Schwerer Ausfall aus 8:21 PM zu 9:13 PM, Beeinträchtigte Leistung aus 9:13 PM zu 2:45 PM

Cannon Compute Cluster (Holyoke)

Schwerer Ausfall aus 8:21 PM zu 9:13 PM, Beeinträchtigte Leistung aus 9:13 PM zu 2:45 PM

Boston Compute Nodes

Schwerer Ausfall aus 8:21 PM zu 9:13 PM, Beeinträchtigte Leistung aus 9:13 PM zu 2:45 PM

GPU nodes (Holyoke)

Schwerer Ausfall aus 8:21 PM zu 9:13 PM, Beeinträchtigte Leistung aus 9:13 PM zu 2:45 PM

seas_compute

Schwerer Ausfall aus 8:21 PM zu 9:13 PM, Beeinträchtigte Leistung aus 9:13 PM zu 2:45 PM

Aktualisierung
  • Gelöst
    UTC
    Gelöst

    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.

  • Identifizierung
    UTC
    Identifizierung

    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.

  • Analyse
    UTC
    Analyse

    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