FAS Research Computing - Network issues - Cluster degraded – 사건 세부 정보

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Network issues - Cluster degraded

해결됨
심각한 장애
시작 4개월 전지속됨 5일

영향받음

Cannon Cluster

성능 저하 ~에서 1:34 PM ~ 8:41 PM

SLURM Scheduler - Cannon

성능 저하 ~에서 1:34 PM ~ 8:41 PM

Cannon Compute Cluster (Holyoke)

성능 저하 ~에서 1:34 PM ~ 8:41 PM

Boston Compute Nodes

성능 저하 ~에서 1:34 PM ~ 8:41 PM

GPU nodes (Holyoke)

성능 저하 ~에서 1:34 PM ~ 8:41 PM

seas_compute

성능 저하 ~에서 1:34 PM ~ 8:41 PM

업데이트
  • 해결됨
    UTC
    해결됨

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

  • 모니터링 중
    UTC
    모니터링 중

    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.

  • 확인됨
    UTC
    확인됨

    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.

  • 조사 중
    UTC
    조사 중

    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