cron - timing - interval

[iamdevnull]

Hey guys,

i realised that if you have for example this interval scheme:

retain daily 7
retain weekly 4
retain monthly 12

and this schedule:

44 2 * * * root rsnapshot daily # mon-sat
27 0 * * 0 root rsnapshot weekly # sun
17 1 1 * * root rsnapshot monthly # first of every month

this means if i start the first week from scratch, then i would have on

saturday: daily.0 - daily.5

and on sunday i see a problem, cron would call first "rsnapshot weekly" due to the time, this will cause:

daily.6 not present (yet), nothing to copy

the result is one missing "weekly".

Can you confirm this problem ?

Regards

[iamdevnull]

I would greatly appreciate it if I could have an answer to my question.

Regards

[sgpinkus]

If you want to ask a question or have a general discussion use the Mailing List

Conceptually each retain defines a FIFO of strictly fixed length. Each item in the queue is labelled <retain-name>.<index>. All rsnapshot <retain-name> does is rotate the queues. Given:

retain level0 X
retain level1 Y

in general you have to ensure level0 is called >= X times, between level1 calls., otherwise you'll get "not present (yet), nothing to copy.", which isn't a huge deal normally.