FAS Research Computing - Network issues - Cluster degraded – 故障详情

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Network issues - Cluster degraded

已解决
严重故障
开始于 4 个月前持续 5 天

受到影响

Cannon Cluster

性能下降 从 1:34 PM 至 8:41 PM

SLURM Scheduler - Cannon

性能下降 从 1:34 PM 至 8:41 PM

Cannon Compute Cluster (Holyoke)

性能下降 从 1:34 PM 至 8:41 PM

Boston Compute Nodes

性能下降 从 1:34 PM 至 8:41 PM

GPU nodes (Holyoke)

性能下降 从 1:34 PM 至 8:41 PM

seas_compute

性能下降 从 1:34 PM 至 8:41 PM

更新
  • 已解决
    UTC
    已解决

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

  • 持续监控中
    UTC
    持续监控中

    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.

  • 已确认问题
    UTC
    已确认问题

    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.

  • 调查中
    UTC
    调查中

    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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https://portal.rc.fas.harvard.edu or email rchelp@rc.fas.harvard.edu