I have a master running with 2 slaves.
I updated the slaves to 8.0.25, the master is still at 8.0.23
Since then, one of the slaves is printing a lot of messages like this in its error log:
“[Note] [MY-012102] [InnoDB] Open file list len in shard x is y”
where y is usually 0, x is a different number from 0 to 11
the other slave seems to be working fine.
Should I rebuild the slave with xtrabackup (the db size is more than 500gb) or I can upgrade the master to .25 and this error will disappear?
Edit: the slave printing the errors is still replicating, 0 seconds behind Master
I guess I’ll go with the first option anyway…