use a better heuristic for the apt update last run time #184
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@julian-klode could you review this? I think it covers the comments you made in #182... |
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If |
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On 2023-10-17 07:50:27, Jerome Charaoui wrote:
If `APT::Periodic` is used at some point, and then disabled, wouldn't this report a false metric if `apt` is updated in another manner?
If it's disabled, the code won't check that timestamp file, unless I got
this wrong.
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Right, my bad! |
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I think you want to use get_b or what it's called in the config object that returns a boolean so that it parses everything correctly. |
It's a boolean? That wasn't quite clear to me, reading the documentation... I thought it could be a time delta (e.g. |
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@julian-klode you mean |
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Yes indeed, find_b sorry. Wasn't on my laptop so didn't look it up :) |
As reported in prometheus-community#182, `pkgcache.bin` gets updated on more than just `apt update`. In particular, it gets modified when a package is installed, upgraded or removed. So let's fallback on a better heuristic, which is the `APT::Periodic` timestamp. This should give us a much more precise and deliberate status. We also fallback to the `lists` directory, which gets updated when new mirror lists gets moved into place. This does run the risk of staying silently unchanged if there's no change on mirrors but (a) that's rather infrequent and (b) we might actually want to warn on that anyway. Signed-off-by: Antoine Beaupré <[email protected]> Closes: prometheus-community#183
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thanks, fixed. |
As reported in #182,
pkgcache.bingets updated on more than justapt update. In particular, it gets modified when a package is installed, upgraded or removed.So let's fallback on a better heuristic, which is the
APT::Periodictimestamp. This should give us a much more precise and deliberate status.We also fallback to the
listsdirectory, which gets updated when new mirror lists gets moved into place. This does run the risk of staying silently unchanged if there's no change on mirrors but (a) that's rather infrequent and (b) we might actually want to warn on that anyway.Closes: #183