Re: [9fans] A potentially useful venti client

[Steve Simon <steve@quintile.net>]

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/sys/src/cmd/venti/words/printarenas

no idea why it lived there though.

-Steve


> On 12 Dec 2017, at 18:33, Ole-Hjalmar Kristensen <ole.hjalmar.kristensen@gmail.com> wrote:
> 
> Hmm. On both my plan9port and on a 9front system I find printarenas.c, but no script. Maybe you are thinking of the script for backup of individual arenas to file? Yes, that could be a starting point.
> 
> Anyway, printarenas.c doesn't look too scary, basically a loop checking all (or matching) arenas. It seems possible to modify the logic to start at a specific offset.
> 
> Not running fossil at the moment, btw., my main file server is a Linux box, but I use vac for backup, both at home and at work. Fossil is definitely on my todo list, although the reported behavior when running out of space is a bit scary. Do you know why it does not simply block further requests while checkpointing to venti, or even better, starts a snapshot before it runs out of space?
> 
>> On Tue, Dec 12, 2017 at 3:07 PM, Steve Simon <steve@quintile.net> wrote:
>> printarenas is a script - it walks through all your arenas at each offset.
>> 
>> You could craft another script that remembers the last arena and offset you successfully
>> transferred and only send those after that.
>> 
>> I think there is a pattern where you can save the last arena,offset in the local
>> fossil. Then you could mount the remote venti to check that last arena,offset
>> that actually arrived and stuck to the disk on the remote site.
>> 
>> On a similar subject I have 10 years of backups from a decomissioned work server
>> that I need to merge into my home venti one of these days...
>> 
>> -Steve
>> 
> 

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