Bug #93735 Failed accepting connection: Too many open files
Submitted: 25 Dec 2018 8:11 Modified: 22 Jan 2019 11:43
Reporter: Abdullah Zarour Email Updates:
Status: Not a Bug Impact on me:
None 
Category:MySQL Router Severity:S1 (Critical)
Version:8.0.12 OS:Red Hat
Assigned to: MySQL Verification Team CPU Architecture:Other (64)

[25 Dec 2018 8:11] Abdullah Zarour
Description:
routing ERROR [7f09cd46b700] [routing:DarkClsDev_default_rw] Failed accepting connection: Too many open files

How to repeat:
N/A
[22 Jan 2019 11:43] MySQL Verification Team
Hi,
This is not a bug, it is configuration issue (both the operating system and the mysql part). Feel free to contact our support team or mysql forum at https://forums.mysql.com/

all best
Bogdan
[23 Apr 2019 20:35] Victor Michnowicz
I was able to get around this by adding

LimitNOFILE = 999999

to the following two files under the [Service] section:

/usr/lib/systemd/system/mysqlrouter.service
/usr/lib/systemd/system/mysqld.service