由于 Crowdstrike Falcon Sensor 在 NFS 客户端主机上运行，出现 'nfs: server not responding'

适用于

问题描述

• 间歇性 NFS 延迟/无响应，例如 df -h 无限期挂起
• 客户端日志 nfs: server not responding

  • Nov 24 11:36:05 client_hostname kernel: nfs: server nfs_server not responding, still trying
Nov 24 11:36:05 client_hostname kernel: nfs: server nfs_server OK
Nov 24 11:36:05 client_hostname kernel: nfs: server nfs_server OK
Nov 24 11:36:05 client_hostname kernel: nfs: server nfs_server OK
Nov 24 11:36:05 client_hostname kernel: nfs: server nfs_server not responding, still trying
Nov 24 11:36:05 client_hostname kernel: nfs: server nfs_server OK
Nov 24 11:36:05 client_hostname kernel: nfs: server nfs_server not responding, still trying
Nov 24 11:36:05 client_hostname kernel: nfs: server nfs_server not responding, still trying
Nov 24 11:36:05 client_hostname kernel: nfs: server nfs_server not responding, still trying
Nov 24 11:36:05 client_hostname kernel: nfs: server nfs_server not responding, still trying

• 数据包跟踪显示

  • ONTAP 会回复所有请求

  • ONTAP 反复发送 TCP Retransmission，未收到响应，并关闭 TCP 会话 [RST, ACK]