Doing a little fishing here ...
Does someone know of a reason why a downstream replica would--seemingly
spontaneously--start writing ALL of its binary log entries in ROW
format, even though binlog_format is MIXED?
This replica has been running for quite some time, though admittedly I
had to restore it from a backup about 3 weeks ago as the result of a
server crash. But it had been writing data fine over those three weeks
(and prior); starting on March 2nd it started writing all of its entries
in ROW format. I didn't notice until it filled the disk this morning. I
can't think of anything that may have changed at that time. Normally a
few entries will get written as ROW but most are definitely MIXED in
normal operation.
I stopped/restarted it this morning and it's writing in MIXED again, as
expected.
I also checked the upstream primary, it is _not_ writing its records as
ROW. I.E., my replica is (apparently) not getting them that way from
upstream.
Both are 10.11.8.
Any ideas?
TIA,
Dan
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