EM12c : Enterprise Manager 12c Cloud Control OHS Log Repeats Error Message: NZ Library Error: SSL protocol error [Hint: the client probably speaks HTTPS over HTTP protocol] (Doc ID 2099212.1)

Last updated on NOVEMBER 16, 2022

Applies to:

Symptoms

In an Enterprose manager (EM)  12c Cloud Control installation, the <gc_inst>/WebTierIH1/diagnostics/logs/OHS/ohs1/ohs1.log reports following errors:

[OHS] [ERROR:32] [] [core.c] [host_id: OMS HOSTNAME] [host_addr: IP ADDRESS OF OMS HOST] [pid: 24585] [tid: 140064204982016] [user: oracle]

[VirtualHost:OMS HOSTNAME] NZ Library Error: SSL protocol error [Hint: the client probably speaks HTTPS over HTTP protocol]

[OHS] [ERROR:32] [] [core.c] [host_id: OMS HOSTNAME] [host_addr: IP ADDRESS OF OMS HOST] [pid: 30256] [tid: 140064249079552] [user: oracle] 

[VirtualHost:OMS HOSTNAME] nzos handshake error, nzos_Handshake returned 28858(server OMS HOSTNAME:OMS PORT, client 

<CLIENT IP ADDRESS WHICH IS MAKING CONNECTION TO OHS)

The $EM_INSTANCE_BASE/gc_inst/WebTierIH1/diagnostics/logs/OHS/ohs1/access_log shows that an EM console login attempt is being made when this error gets logged in OHS log:

<CLIENT IP ADDRESS WHICH IS MAKING CONNECTION TO OHS> - - "GET /em/faces/logon/core-uifwk-console-login?_afrLoop=13498631181328435&_afrWindowMode=0&_afrWindowId=null HTTP/1.1" 200 2940 

[ecid: 1.005AL7hf8qf4ykN5qJH7iY0007SD0004Ct;kXjE1ZDLIPJOj5PRj6POZLRSjCRRbVQRj3RRmLPBpPQPrRPBZVQRnVOR_T8RjNPQiG] [User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/7.0; 

SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; InfoPath.2; MS-RTC LM 8)]

There is no functional impact seen on the OHS or EM 12c OMS.
Only repeated error messages like the above are logged in the <gc_inst>/WebTierIH1/diagnostics/logs/OHS/ohs1/ohs1.log file for various Client IP Addresses.

Changes

Cause

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