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TOPIC: From Mysql5.7 to Mysql 8.0 error plugin

From Mysql5.7 to Mysql 8.0 error plugin 10 months 2 weeks ago #2330

  • focus330
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After 3 years I reopen a Scada project. I update Scada release with the new one. I also change, some months ago, MYSQL from 5.7 to 8.0 .
When manage databases on Ide I received this messages : 1 - Java.lang.NullPointerException
2 - Java.sl.SQL.Exception. Unkmown system variable 'qyery_cache_size'
The variable is no more supported with Mysql 8.0 If I try to add the line to my.ini MYSQL server doesn-'t start..
Also on Runtime I have the same error and I can connect to the database.
Someone knows how to reapair ?
Thanks very much.
Stefano Viola
Last Edit: 10 months 2 weeks ago by focus330.
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From Mysql5.7 to Mysql 8.0 error plugin 10 months 2 weeks ago #2331

  • fatkhrus
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Hello Stefano,

Did you study this manual: teslascada.com/HTML/mysql.html ?
We've tested our product with MySQL server version 8.0 and it works without problems.

Best regards,
Ruslan
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