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MySQL Router - Cannot write to R/O Servers
Posted by: Thomas Dun
Date: January 21, 2019 06:32AM


I am having trouble with mysql router, its quite possibly me being stupid though!

I have configured MySQL 8 on three servers, and installed Mysql router too.

I need to be able to connect to each server and make writes, but when connecting through the port 6446 on the R/O boxes, using "mysql -h localhost -P 6446" i can connect fine, but get

"ERROR 1290 (HY000): The MySQL server is running with the --super-read-only option so it cannot execute this statement"

It seems like its not communication properly and redirecting the writes to the correct place. Sure enough if I fail the box over, the one that was R/O can now write if its been made the R/W.

Just to confuse the issue, I can connect using mysqlsh on any of the boxes and make changes and it knows which box is the write.

But this doesn't help me as I need three webservers running different front end applications all being able to write to the relevant user@localhost

Can anyone help me please?

Thanks very much

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MySQL Router - Cannot write to R/O Servers
January 21, 2019 06:32AM

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