FAS Research Computing - Network issues - Cluster degraded – Dettagli dei guasti

Sperimentazione di prestazioni parzialmente degradate

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Network issues - Cluster degraded

Risolto
Grave disservizio
Avviato il 3 mesi faDurato 5 giorni

Colpiti

Cannon Cluster

Performance ridotte da 1:34 PM to 8:41 PM

SLURM Scheduler - Cannon

Performance ridotte da 1:34 PM to 8:41 PM

Cannon Compute Cluster (Holyoke)

Performance ridotte da 1:34 PM to 8:41 PM

Boston Compute Nodes

Performance ridotte da 1:34 PM to 8:41 PM

GPU nodes (Holyoke)

Performance ridotte da 1:34 PM to 8:41 PM

seas_compute

Performance ridotte da 1:34 PM to 8:41 PM

Aggiornamenti
  • Risolto
    Risolto

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

  • Monitorando
    Monitorando

    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.

  • Individuato
    Individuato

    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.

  • Verifiche
    Verifiche

    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