Show more info on why package precompilation was needed #52619
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jishnub
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Falling back to the older serial precompilation process is basically a bug (except for if a manifest hasn't been resolved) so #52619 added more info on why it's been hit so we have a chance of fixing issues that are otherwise very difficult to recreate. However "invalid header" which usually just means it was made by a different julia version appears to sound too alarming to users. https://discourse.julialang.org/t/cache-misses-when-using-packages-since-upgrading-to-1-11/121445 So soften it there and in error messages, given it seems a better description. Suggested by @giordano in https://discourse.julialang.org/t/cache-misses-when-using-packages-since-upgrading-to-1-11/121445/4?u=ianshmean
giordano
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Falling back to the older serial precompilation process is basically a bug (except for if a manifest hasn't been resolved) so #52619 added more info on why it's been hit so we have a chance of fixing issues that are otherwise very difficult to recreate. However "invalid header" which usually just means it was made by a different julia version appears to sound too alarming to users. https://discourse.julialang.org/t/cache-misses-when-using-packages-since-upgrading-to-1-11/121445 So soften it there and in error messages, given it seems a better description. Suggested by @giordano in https://discourse.julialang.org/t/cache-misses-when-using-packages-since-upgrading-to-1-11/121445/4?u=ianshmean (cherry picked from commit aa51abe)
KristofferC
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Falling back to the older serial precompilation process is basically a bug (except for if a manifest hasn't been resolved) so #52619 added more info on why it's been hit so we have a chance of fixing issues that are otherwise very difficult to recreate. However "invalid header" which usually just means it was made by a different julia version appears to sound too alarming to users. https://discourse.julialang.org/t/cache-misses-when-using-packages-since-upgrading-to-1-11/121445 So soften it there and in error messages, given it seems a better description. Suggested by @giordano in https://discourse.julialang.org/t/cache-misses-when-using-packages-since-upgrading-to-1-11/121445/4?u=ianshmean
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Expands the precompiling log from e.g.
to
Hitting code load precompilation can happen for various unexpected reasons, and while
JULIA_DEBUG=loadinghas nice verbose info to diagnose the issue, the issue is usually resolved by the precompilation job and so is hard to reproduce with debug on.This PR is a rough idea of how we could expand on the standard messaging to give a little more insight without being overly verbose, but catch the one-off issues. I think including a bit more info in this log is ok because it's now a fall-back for when parallel precompilation didn't work.
Using the same example from #44329 (comment) which demonstrates issue #50070 (cc @topolarity)