要共享的CIFS客户端连接挂起、并在命令名称smb2_com_sSession_Setup中显示错误Nblade_CifsOperationTimedOut_1
适用场景
- ONTAP 9
- CIFS
问题描述
- 要共享的CIFS客户端连接挂起
- EMS日志显示：
[node-01: kernel: Nblade_CifsOperationTimedOut_1:error]: params: {'remoteBladeID': '00000000-0000-0000-0000-000000000000', 'cmdRestartCnt': '0', 'vserverId': '27', 'commandName': 'SMB2_COM_SESSION_SETUP', 'isQosEnabled': 'QoS_disabled', 'lastSpinNpError': 'SPINNP_NO_FO_ERROR', 'localIpAddress': '10.xx.yy.22', 'lastCsmError': 'CSM_OK', 'clientIpAddress': '10.xx.zz.88', 'suspensionCnt': '1', 'dsId': '0'}
secd: secd.rpc.server.request.dropped:debug]: The RPC secd_rpc_auth_extended sent from NBLADE_CIFS was dropped by SecD due to memory pressure. in Secd log: SecD RPC Server: Too many outstanding Generic RPC requests: sending System Error to RPC RPC TOOK TOO LONG: | RPC used 6617 seconds (max is 23)
- SECD日志显示
RPC requests sitting in SECD queue for long times.
[kern_secd:info:16176] | [000.000.015] debug: Worker Thread 34507281152 processing RPC 151:secd_rpc_auth_extended with request ID:30219 which sat in the queue for 21 seconds. { in run() at src/server/secd_rpc_server.cpp:2306 }
[kern_secd:info:16176] | [000.000.013] debug: Worker Thread 34507279872 processing RPC 151:secd_rpc_auth_extended with request ID:30184 which sat in the queue for 19 seconds. { in run() at src/server/secd_rpc_server.cpp:2306 }
- 与 受影响的 LIF位于同一节点上的SVM (EMS消息中的localIpAddress) 也可能受到影响
- 数据包跟踪会 在短时间内显示大量身份验证
CIFS Session Setup请求、并 会收到一些请求Error: STATUS_INTERNAL_ERROR
347672 2021-08-12 08:01:55.550 10.xx.yy.224 10.xx.zz.22 SMB2 Session Setup Request
352783 2021-08-12 08:02:36.293 10.xx.zz.22 10.xx.yy.224 SMB2 Session Setup Response, Error: STATUS_INTERNAL_ERROR
- 多个会话数量较多的客户端会根据数据包跟踪分析发送许多身份验证请求：
::> cifs session show -vserver <svm>
::> cifs session file show -vserver <svm> -connection-id <integer>