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Global database lock inhibits reads after a while #2088

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Global database lock inhibits reads after a while#2088
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needs-inputneeds-refinementThis story needs more refinement and explanation.robustness

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@baszoetekouw
baszoetekouw
opened on Sep 1, 2026

See SURFconext Incident 2026-08-25. Short summary:

  • database restore in unrelated database schema cause global (write) lock in Galera
  • this cause consent-writes to block
  • after a while. all database connections are busy (waiting of the lock for writes)
  • then also simply authentications (requiring only reads) fail.

Can this be improved? For example by decreasing lock-timeouts?

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