This week new minor releases of MySQL server were announced. Of
them all I am mostly interested in MySQL 5.7.27. I plan to concentrate on InnoDB,
replication and optimizer bugs reported in public MySQL bugs
database and fixed in MySQL 5.7.27. As usual I name bug reporters
explicitly and give links to their remaining currently active bug
reports, if any.
Let me start with InnoDB bug fixes:
- Bug #94699 - "Mysql deadlock and bugcheck on aarch64 under stress test". This bug report with a fix for insufficient memory barriers in the rw-lock implementation was contributed by Cai Yibo.
- Bug #93708 - "Page Cleaner will sleep for long …