Hi Antoine,
This would work if there were no existing metadata objects in the backend. If
you create additional objects with a different blocksize, you'll probably run
into trouble. Removing all the existing ones might work, but may be a bit risky
if something goes wrong...
Best,
-Nikolaus
On Tue, 12 Sep 2023, at 09:23, Antoine Colombier wrote:
> Hi Nikolaus and thanks for your reply.
>
> I have started looking at the code and as I though I understood how to
> implement this, I came across upgrade function in src/s3ql/adm.py. Am I
> correct in thinking that adding some flag allowing to shortcut the following
> condition would be enough?
>
> elif local_params['revision'] >= CURRENT_FS_REV:
> print('File system already at most-recent revision')
> return
>
> If yes, is there any risk or potential side effect on upgrading a filesystem
> again I should be aware of and potentially guard against? At first glance,
> this function looks idempotent but I'm not yet familiar with all the helper
> it relies on.
>
> Best,
> Antoine
> Le vendredi 8 septembre 2023 à 13:14:28 UTC+1, Nikolaus Rath a écrit :
>> On Sep 06 2023, Antoine Colombier <[email protected]> wrote:
>> > Hi all,
>> >
>> > I have recently started a filesystem migration to a new S3QL filesystem
>> > using the S3 backend and I went with the default setting for metadata
>> > block
>> > size.
>> >
>> > Unfortunately, the FS is will be storing about 23 millions of files and
>> > the
>> > database is growing fast (already 28268 block of 64k, and I've barely
>> > uploaded a third of the total data)
>> >
>> > Since the copy process is due to take 10+ days (already 3 days in), I was
>> > wondering if I could change the metadata block after creation, since (if I
>> > understand correctly) this is only used to segment the SQLite DB....?
>>
>> In principle it's possible. In practice, no one has written the code to
>> do this.
>>
>>
>> Best,
>> -Nikolaus
>
>
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