WARNING: Sentinel was not able to save the new configuration on disk!!!: Device or resource busy

[startjava]

sudo docker run -v /home/ghy/redis_master_replica/RedisSentinel1.conf:/redisConfig/RedisSentinel1.conf -v /home/ghy/redis_master_replica/sentinel_data:/sentinel_data --name redis6.2.5_sentinel_26381 --network host -d redis:6.2.5 redis-sentinel /redisConfig/RedisSentinel1.conf

log info bottom：
1:X 28 Aug 2021 03:40:19.696 # Could not rename tmp config file (Device or resource busy)
1:X 28 Aug 2021 03:40:19.696 # WARNING: Sentinel was not able to save the new configuration on disk!!!: Device or resource busy

restart 3 sentinel server,

use command:
info sentinel

show old master !

[startjava]

[ghy@localhost redis_master_replica]$ sudo docker -v
[sudo] ghy 的密码：
Docker version 20.10.8, build 3967b7d
[ghy@localhost redis_master_replica]$

[wglambert]

Something else might be using that file/directory. I would try asking over at the Docker Community Forums, Docker Community Slack, or Stack Overflow. Since these repos aren't really a user-help forum

[yosifkit]

I would guess the problem is that the conf file is mounted directly (by inode) and when redis goes to save/edit it, then that will fail because the "idempotent" way to write a file is to write it to a temporary file and then rename to the real file and that won't work on a bind-mounted file.

Try mounting the directory of the config file instead. May want to make a "conf" sub-directory for it.