FAS Research Computing - Network issues - Cluster degraded – Detaliile incidentului

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Network issues - Cluster degraded

Rezolvat
Întrerupere majoră
Început la 4 luni în urmăA durat 5 zile

Afectat

Cannon Cluster

Performanță scăzută din 1:34 PM către 8:41 PM

SLURM Scheduler - Cannon

Performanță scăzută din 1:34 PM către 8:41 PM

Cannon Compute Cluster (Holyoke)

Performanță scăzută din 1:34 PM către 8:41 PM

Boston Compute Nodes

Performanță scăzută din 1:34 PM către 8:41 PM

GPU nodes (Holyoke)

Performanță scăzută din 1:34 PM către 8:41 PM

seas_compute

Performanță scăzută din 1:34 PM către 8:41 PM

Actualizări
  • Rezolvat
    UTC
    Rezolvat

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

  • În curs de monitorizare
    UTC
    În curs de monitorizare

    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.

  • Identificat
    UTC
    Identificat

    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.

  • În curs de investigare
    UTC
    În curs de investigare

    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