WARNING: The file has been changed since reading it! Do you really want to write to it (y/n)?

Redis administration
1

REDIS HA CONFIGURATION SERIES
https://www.tecmint.com/setup-redis-replication-in-centos-8/ [2nd and 3rd series link is inside first link]

From three part series of above web link I successfully configured Part-1. However in Part-2 when I do few configuration (for example "sentinel failover-timeout mymaster 180000
"), I face subjected/below WARNING. why ? please help in this regards.

WARNING: The file has been changed since reading it!!!
Do you really want to write to it (y/n)?

2

I assume that this below configuration is only valid for Master Server sentinel configuration file and not for Slave nodes that’s why the WARNING appears.

sentinel failover-timeout mymaster 180000
sentinel parallel-syncs mymaster 1

3

Hi,

I assume you are using vi/editor that shows the error, that is actually just a warning from the editor.

It is said that
When Vim notices the timestamp of a file has changed, and the file is being
edited in a buffer but has not changed, Vim checks if the contents of the file
is equal.  This is done by reading the file again (into a hidden buffer, which
is immediately deleted again) and comparing the text.  If the text is equal,
you will get no warning.
4

@z_haseeb time to change your editor :wink:

5

I did it, just need to stop service , change the conf file and start the service