ONTAP 集群中的 nblade.execsOverLimit 错误，由 Kubernetes 集群访问

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Category:: astra_trident

Specialty:: snapx

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适用于

Kubernetes 集群
NetApp Astra Trident
NFSv3/v4
Ontap 9.8+

问题

PersistentVolumeClaims (PVC) 由 Trident 预配，间歇性地无法挂载到某些 OpenShift 节点或 Pod 上。
受影响的 Pod 长时间保持ContainerCreating 状态。
尝试从这些节点挂载 NFS 卷会导致 mount.nfs 进程被阻塞数分钟。
Pod 状态：q-courier-deployment-xxxxxxx-xaaaaa 0/1 ContainerCreating 0 61m abcs
内核日志 (dmesg)：[6xxxx0.3xxxx1] INFO: task mount.nfs:3xxxx1 blocked for more than 983 seconds.
ONTAP EMS：

Mon Jan 01 00:00:00 +0100 [node: kernel: nblade.execsOverLimit:error]: The number of in-flight requests from client with source IP XX.YY.ZZ.XX to destination LIF ZZ.YY.XX.YY (Vserver X) is greater than the maximum number of in-flight requests allowed (128). The client might see degraded performance due to request throttling