Re: build a cluster of two LEAF Bering host

Hi Graziano

Am 09.03.2022 um 15:44 schrieb Graziano Brioschi:
> Hi ET
> 
...

>>
>> What is the advantage of csync2 over rsync in your set up?
> 
> The main advantage using csync2 is related to its ability of syncing 
> files in bidirectional mode, handle file deletions and simple detect 
> conflits; at last but not the least, csync2 have the ability to run some 
> commands or scripts when a file is updated (for example running 
> "shorewall restart" or other usefull command to run a backup of the 
> configuration).

I believe, not having csync2, it is possible to run rsync in a 
bidirectional mode. You don't have to have one single process in a 
master/slave configuration but start the rsync process based on file 
events on either system. That should not be very difficult. csync2 must 
have a mechanism to detect file events, and I doubt they reinvented the 
wheel, and has a central configuration base on how to react, e.g. its 
dialect to specify what to do on such events.

> 
> I think your suggestions are valid, so i will make a revision about my 
> original idea; perhaps a master/slave configuration with manual 
> intervention in case of fail can be a simplest solution

If you read the documentation of csync2 you find at the end they are 
referencing other synchronisation methods, one being rsync.

cheers

ET

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