Re: MySQL 5.7.18 and memory ...
From
https://bugs.mysql.com/bug.php?id=84003 ...
"After digging around some more I finally found the cause: Linux' Transparent Huge Pages (THP) combined with system memory allocator (doesn't matter which, malloc, jemalloc, etc.) cause mysqld RSS to increase without bound.
"It may be due to our long lived connections, thousands of prepared statements on those connections, and the inability of memory allocator to clean up huge pages in a timely manner.
"Regardless, disabling THP allows the allocator to eventually return memory to the OS. Basically, MySQL memory usage now falls within a normal range given system load."
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Re: MySQL 5.7.18 and memory ...
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