Re: [MooseFS-Users] Real experiences from real users

[Gandalf C. <gan...@gm...>]

Il giorno lun 21 mag 2018 alle ore 20:51 WK <wk...@bn...> ha scritto:
> Maybe MFS could also detect if there is something bad happening and go RO.

How to detect this ?
Another solution would be to generate an unique id for each chunkserver on
first
connection (an UUID would be great) and save the same value in both master
and chunkserver.
Then if chunkserver at 1.2.3.4 is talking with a different UUID than the
one stored on
master server, something bad happened.

If you want to add a new chunkserver, just add it with a brand new IP.
if you want to replace an existing chunkserver, by keeping the old IP,
something like the following
should be executed:

mfschunkserver --uuid-clear

to clear the UUID before allowing connections to master.