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在移动到另一个节点时、采用Trident SAN或NAS RW PV的POD将脱机

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适用场景

  • OpenShift/Kubernetes
  • SAN/iSCSI PV
  • NAS RW PV
  • 三叉

问题描述

如果使用PV的原始Pod在其节点上失败或被删除、而Kubernetes正在尝试在其他节点之一上启动、而此Pod正在使用基于RW的PVC、则替代Pod会出现以下错误、 例如、使用iSCSI ontap-san 后端的卷、以及NFS RW类型PV的卷:

Multi-Attach error for volume "pvc-<UUID>" Volume is already exclusively attached to one node and can't be attached to another

但是、一段时间后、只会出现以下错误:

Warning FailedMount <time_delay> kubelet MountVolume.MountDevice failed for volume "pvc-<UUID>" : rpc error: code = DeadlineExceeded desc = context deadline exceeded

 

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