FAS Research Computing - Network issues - Cluster degraded – Détails de l'incident

Expérimenter des performances partiellement dégradées

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Network issues - Cluster degraded

Résolu
Panne majeure
A commencé il y a 3 moisA duré 5 jours

Concernés

Cannon Cluster

Performances dégradées depuis 1:34 PM à 8:41 PM

SLURM Scheduler - Cannon

Performances dégradées depuis 1:34 PM à 8:41 PM

Cannon Compute Cluster (Holyoke)

Performances dégradées depuis 1:34 PM à 8:41 PM

Boston Compute Nodes

Performances dégradées depuis 1:34 PM à 8:41 PM

GPU nodes (Holyoke)

Performances dégradées depuis 1:34 PM à 8:41 PM

seas_compute

Performances dégradées depuis 1:34 PM à 8:41 PM

Mises à jour
  • Résolu
    Résolu

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

  • Surveillé
    Surveillé

    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.

  • Identifié
    Identifié

    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.

  • Détecté
    Détecté

    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..

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