MySQL Forums
Forum List  »  InnoDB

Re: mysql 8.0.27 went crash
Posted by: Peter Brawley
Date: April 25, 2022 12:22AM

Not sure why your posts triggered the approval switch.

It's a busy, underpowered system.

> > Slow queries/sec 0
Turn on the slow query log, optimise the slowest queries.

> Full table scans/sec 240.63
> Table scan next row seeks/sec 138037.52
These numbers indicate there are many slow queries where MySQL can't find suitable indexes, ie the queries need optimisation including covering indexes.

> Total InnoDB load / buffer pool size 14.23
InnoDB load is 14 times the buffer pool size. Unsustainable. Until you can arrange for more RAM, bump innodb_buffer_pool_size to 24GB. If it's my system with this load, I want 128GB RAM, buffer pool about 100GB.

> Mins between InnoDB log rotation 4.91
Best is about 30 mins, change settings accordingly.

Options: ReplyQuote


Subject
Views
Written By
Posted
523
y y
April 19, 2022 07:09PM
224
April 19, 2022 10:58PM
190
y y
April 20, 2022 01:41AM
183
y y
April 20, 2022 01:50AM
203
April 20, 2022 10:19AM
193
y y
April 20, 2022 06:20PM
217
April 20, 2022 06:53PM
175
y y
April 23, 2022 06:52PM
Re: mysql 8.0.27 went crash
190
April 25, 2022 12:22AM
183
April 25, 2022 05:50AM
188
April 25, 2022 09:48AM
177
y y
April 25, 2022 08:36PM


Sorry, only registered users may post in this forum.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.