#13826: Race condition in star_imports cache
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Reporter: vbraun | Owner: GeorgSWeber
Type: defect | Status: needs_review
Priority: critical | Milestone: sage-5.5
Component: build | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Volker Braun | Merged in:
Dependencies: | Stopgaps:
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Comment (by robertwb):
Yes, {{{sage -b}}} deletes the cache file, so the cache should never be
stale. Making the replacement atomic should be fixed though, and this
patch does that.
The code looks good, except that I think the explicit unlink of the cache
file before writing a new one is unnecessary (and could cause issues with
multiple stage startups at the same time). We've decided to ignore
whitespace, so modulo that one issue, positive review.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13826#comment:13>
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