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[refactor](arrow-flight) One connection pool for MySQL connections and Arrow Flight SQL sessions - #68101

Merged

morningman merged 9 commits into

apache:masterfrom

morningman:flight-single-pool

Sep 20, 2026

Merged

[refactor](arrow-flight) One connection pool for MySQL connections and Arrow Flight SQL sessions#68101
morningman merged 9 commits into
apache:masterfrom
morningman:flight-single-pool

Commits on Sep 20, 2026
- [refactor](arrow-flight) One connection pool for MySQL connections and Arrow Flight SQL sessions
  
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  claude
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  a0f834f
- [refactor](arrow-flight) Declare what the shared pool implies, and close the review's gaps
  
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  8798519
- [refactor](arrow-flight) Say how a Flight session ends, and tell a refused MySQL client where the pool went
  
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  7f05b16
- [refactor](arrow-flight) Default the Flight sub-quota to half of the pool
  
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  e8d63f0
- [refactor](arrow-flight) Say in the capping warning what the cap means and how to lift it
  
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  a1e6498
- [test](arrow-flight) Anchor test_connection_quota to a single FE
  
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  a083d7b
- [test](arrow-flight) Grant the quota user a compute group in cloud mode
  
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  2e78460
- [test](arrow-flight) Assert the single-FE anchoring instead of assuming it
  
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  b2c6de9
- [fix](arrow-flight) Make shared-pool admission atomic and harden the quota suite
  
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  b446ac8