FAS Research Computing - Network issues - Cluster degraded – Szczegóły incydentu

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Network issues - Cluster degraded

Rozwiązany
Poważna awaria
Wystąpił w dniu 3 miesiące temuTrwało 5 dni

Dotknięty

Cannon Cluster

Obniżona wydajność z 1:34 PM do 8:41 PM

SLURM Scheduler - Cannon

Obniżona wydajność z 1:34 PM do 8:41 PM

Cannon Compute Cluster (Holyoke)

Obniżona wydajność z 1:34 PM do 8:41 PM

Boston Compute Nodes

Obniżona wydajność z 1:34 PM do 8:41 PM

GPU nodes (Holyoke)

Obniżona wydajność z 1:34 PM do 8:41 PM

seas_compute

Obniżona wydajność z 1:34 PM do 8:41 PM

Aktualizacje
  • Rozwiązany
    Rozwiązany

    This incident has been resolved by draining and rebooting any nodes with stuck mounts.

  • Monitorowanie
    Monitorowanie

    Mounts to Holyoke Isilon (specifically /n/sw) are broken on numerous nodes across the cluster. We have a check rolling out to find these nodes so we can remediate them individually. Until remediated the cluster will be in a degraded state. Running jobs may randomly die or fail as they hit nodes that have stale mounts.

    It will be risky to run jobs for the next hour and then, after that point, the cluster will have a large number of nodes closed waiting for them to drain so we can reboot them and fix the mounts.

    At this time we are unaware of any holy-isilon problems other than the effect this had on cluster nodes/running jobs. We will update should we identify any data storage concerns.

  • Zidentyfikowany
    Zidentyfikowany

    Mounts to Holyoke Isilon (specifically /n/sw) are broken on numerous nodes across the cluster. We have a check rolling out to find these nodes so we can remediate them individually. Until remediated the cluster will be in a degraded state. Running jobs may randomly die or fail as they hit nodes that have stale mounts.

    It will be risky to run jobs for the next hour and then, after that point, the cluster will have a large number of nodes closed waiting for them to drain so we can reboot them and fix the mounts.

  • Analiza
    Analiza

    A network issue affecting storage critical to the cluster is It's causing instability. The cluster is currently in a degraded state as a result. We are looking into the problem. Updates to follow..

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