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How to set up thread_cache_size in MySQL 5.7
Hi,
We are using MySQL 5.7.22 On windows-2012R(16gb RAM,12 gb innodb buffer pool size)machine and we have observed many new threads have been created(1938) and threads_cached(4),threads connected(198) and threads running(4) therefore i am suspecting we need to tune thread cache size therefore kindly help how to determine required thread cache size and tune? However, i have seen many queries are sleep and is it feasible to reduce wait time out from default 28800 sec to lower number?
Thanks in advance.
Regards,
Upender
Best Answer
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It is very rare to have to adjust the thread cache size (in your server's my.cnf or my.ini) unless you are seeing a lot of new connections constantly. Setting the wait_timeout may do what you want.
I would suggest running MySQL Workbench to watch these connections to get more data/
Answers
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Welcome Upender! The Getting Started space is intended for discussions about the Oracle Developer Community, not for product-specific questions.
There are tips on how to find the correct space on the page, which also has instructions on how to change your display name so you're not just a number.
In the ACTIONS box on the right of your post, you should be able to click on "Move", and then specify the correct space - such as - so the MySQL experts can see your question. (A moderator here may move the post for you.)
Thanks and good luck!
-
It is very rare to have to adjust the thread cache size (in your server's my.cnf or my.ini) unless you are seeing a lot of new connections constantly. Setting the wait_timeout may do what you want.
I would suggest running MySQL Workbench to watch these connections to get more data/