[ML] Downgrade redundant CStateDecompressor empty-state log to INFO#3082
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The LOG_ERROR at readHeader() for missing or empty compressed state documents was never addressed in elastic#2895 and is redundant with parseNext() diagnostics. Downgrade to INFO so routine categorizer state restore misses no longer trip the serverless ERROR log-rate promotion gate. Relates elastic#2875
valeriy42
marked this pull request as draft
July 21, 2026 14:58
valeriy42
marked this pull request as ready for review
July 21, 2026 18:30
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Summary
Downgrade the redundant
LOG_ERROR("Failed to find valid JSON")inCStateDecompressor::readHeader()toLOG_INFOwith a clearer message for empty or missing compressed state documents. PR #2895 fixed the fatal categorizer-restore cascade but left this line at ERROR; it fires routinely when no categorizer state exists yet and was tripping the serverless log error-rate promotion gate. Genuine corruption remains ERROR-logged inparseNext().Relates #2875