24-1: Fix followers not reading system tables and not processing requests #4343
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fomichev3000
approved these changes
May 7, 2024
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This was referenced Jun 7, 2024
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Changelog entry
Fix followers not reading system tables and not processing requests
Changelog category
Additional information
Followers cache change counters for system tables, so as not to re-read them before every request. Unfortunately, the change counter may be zero when follower boots immediately after a system table is compacted, and until more changes are written. This caused them to sometimes reject all read requests due to mismatching table identifiers.
Fixes #4275.
Fixes KIKIMR-21133.
Merges #4314.