FAS Research Computing - Network issues - Cluster degraded – Подробности за инцидента

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Network issues - Cluster degraded

Решен
Сериозно прекъсване
Започнал преди 3 месецаПродължи 5 дни

Засегнати

Cannon Cluster

Намалена производителност от 1:34 PM до 8:41 PM

SLURM Scheduler - Cannon

Намалена производителност от 1:34 PM до 8:41 PM

Cannon Compute Cluster (Holyoke)

Намалена производителност от 1:34 PM до 8:41 PM

Boston Compute Nodes

Намалена производителност от 1:34 PM до 8:41 PM

GPU nodes (Holyoke)

Намалена производителност от 1:34 PM до 8:41 PM

seas_compute

Намалена производителност от 1:34 PM до 8:41 PM

Актуализации
  • Решен
    Решен

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

  • Наблюдаваме
    Наблюдаваме

    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.

  • Идентифициран
    Идентифициран

    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.

  • Разследва се
    Разследва се

    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