由于vscan服务器上的负载较高、CIFS共享访问速度非常慢

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Category:: ontap-9

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适用场景

ONTAP 9及更高版本
CIFS
Vscan

问题描述

如果启用了vscan、则在访问CIFS共享时、响应速度非常慢。
在EMS日志中注意到以下错误：

Wed Jul 26 20:00:45 +0900 [node1: kernel: Nblade_CifsOperationTimedOut_1:error]: params: {'remoteBladeID': '15b42a5c-5661-11e9-b5be-00a098f0b7e6 (node1)', 'cmdRestartCnt': '0', 'vserverId': '5', 'commandName': 'SMB2_COM_CREATE', 'isQosEnabled': 'QoS_disabled', 'lastSpinNpError': 'SPINNP_ERR_OFFBOX_VSCAN_REQD', 'localIpAddress': '10.xx.x.xxx', 'lastCsmError': 'CSM_OK', 'clientIpAddress': '10.xx.x.xxx', 'vserverName': 'svm1', 'suspensionCnt': '4', 'dsId': '1038'}

Wed Jul 26 20:03:02 +0900 [node1: nblade2: Nblade.vscanNoScannerConn:EMERGENCY]: Vserver "svm1" has no virus scanner connection.

Wed Jul 26 20:03:02 +0900 [node1: OffboxVScanTableUpd: Nblade.scannerDisconnected:notice]: Vserver "svm1" disconnected from Vscan server (IP: 10.xx.xx.x).

Avshim日志显示vscan服务器正在响应、但平均响应时间较长：

07/26/23-11:00:35.931Z VS_ScanCompletion: 6170900 requests, avg msec/req 13016 07/26/23-11:00:41.420Z VS_ScanCompletion: 6171000 requests, avg msec/req 13016 07/26/23-11:00:46.708Z VS_ScanCompletion: 6171100 requests, avg msec/req 13016

TCP会话已终止：

07/26/23-11:03:02.942Z [pipe: svm1.domain]Server: Received 32 bytes, ofsPartReq: [0] 07/26/23-11:03:02.942Z[Pipe: svm1.domain] magic_num : [4e74417041760003] session_id : [dd76fd900d035587] len : [32] reqId : [15243333] type : [2, req_SESSION_TEARDOWN] 07/26/23-11:03:02.958Z [Pipe: svm1.domain] msg-code : [req_SESSION_TEARDOWN] 07/26/23-11:03:02.958Z [Pipe: svm1.domain] waiting for synchronous-write to finish for msg-code: [req_SESSION_TEARDOWN] 07/26/23-11:03:02.958Z [svm1.domain][Write] GetOverlappedResult failed, err: <38> 07/26/23-11:03:02.958Z Write EOF Error. Closing the pipe: [svm1.domain]0 7/26/23-11:03:02.958Z [Pipe: svm1.domain] wait-sync-write finished with code: [0] 07/26/23-11:03:02.958Z Attempting reverse DNS lookup of 10.x.x.x 07/26/23-11:03:02.958Z Found host svm1.domain for IP 10.x.x.x 07/26/23-11:03:02.958Z 10.x.x.x resolved to svm1.domain 07/26/23-11:03:02.958Z [Pipe: svm1.domain, svm1-01][r] CreateNamedPipe failed with 1. closingQ: [0]

稍后在AV服务器和SVM之间重新建立TCP连接、但现在vscan扫描文件并返回错误代码""333300001：

07/26/23-11:03:02.958Z VS_ScanCompletion: request id 6173274 of path \\?\UNC\svm1.domain\ontap_admin$\share1\file.xls completed with status[333300001, VSENGINE_INTERNAL_ERROR], str 'I' 07/26/23-11:03:02.974Z VS_ScanCompletion: request id 6173288 of path \\?\UNC\svm1.domain\ontap_admin$\share1\file.xls completed with status[333300001, VSENGINE_INTERNAL_ERROR], str 'I'