FAS Research Computing - Network issues - Cluster degraded – Häiriön yksityiskohdat

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Network issues - Cluster degraded

Ratkaistu
Suuri katkos
Alkoi 3 kuukautta sittenKesti 5 päivää

Vaikutti

Cannon Cluster

Heikentynyt suorituskyky alkaen 1:34 PM to 8:41 PM

SLURM Scheduler - Cannon

Heikentynyt suorituskyky alkaen 1:34 PM to 8:41 PM

Cannon Compute Cluster (Holyoke)

Heikentynyt suorituskyky alkaen 1:34 PM to 8:41 PM

Boston Compute Nodes

Heikentynyt suorituskyky alkaen 1:34 PM to 8:41 PM

GPU nodes (Holyoke)

Heikentynyt suorituskyky alkaen 1:34 PM to 8:41 PM

seas_compute

Heikentynyt suorituskyky alkaen 1:34 PM to 8:41 PM

Päivitykset
  • Ratkaistu
    Ratkaistu

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

  • Seurataan
    Seurataan

    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.

  • Tunnistettu
    Tunnistettu

    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.

  • Tutkitaan
    Tutkitaan

    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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