Upgrading Main Standby pair to 2010 R2 from 2009 R2.2 or earlier

[Anonymous user]

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Issue

Upgrading from a 2009 R2.2 release to 2010 R2 has some potential issues. R2 depends on secure connections to exchange data and this is where the issue can come up.
The upgrade strategy indicates that in a Main Standby pair the standby gets upgraded first. However, doing so can result in a permanent "Sync" state on the standby after it is restarted. DB log file entries on the Standby machine have messages such as the following where 192.168.2.208 is the MAIN:


23-JUN-2011 17:56:01.328 0140 Accepted connection 5 from 192.168.4.208:4780 to 192.168.4.209:5481...
23-JUN-2011 17:56:01.328 0140 ... Connection 5: Type 13, client version 0x6440D2B (6.68.3371), (Uncompressed,Floating Licence)
23-JUN-2011 17:56:01.328 0140 ... Connection 5: insecure connection rejected
23-JUN-2011 17:56:01.328 0140 ... Connection 5 rejected, shutting down socket. Status C014003F -> The client version is not supported by the server.
23-JUN-2011 17:56:01.328 0140 ... Connection 5 closed


This issue is caused by older versions of ClearSCADA not connecting over SSL connections.

Solution

The solution is to allow non secure connections.

Do this in the WebX section and in the Security section.

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