Andrey Antukh 5abf66dbf0 🐛 Set a finite idle timeout on binfile transactions
Binfile v1/v3 import and the v3 export get-file step hold a single
transaction while the ZIP is decoded and the file data is realized.
Disabling idle_in_transaction_session_timeout left a stuck connection
holding locks (and a pool slot) forever.

Raise it to 30 minutes instead. The longest import/export observed in
production is under 8 minutes, so the limit still bounds a stuck
session. statement_timeout stays at 300 s.

Add set-transaction-idle-timeout and configure-import-transaction in
app.binfile.common, use them from both paths, and cover the helper
with a test.

AI-assisted-by: deepseek-v4.1-flash
2026-10-19 16:31:15 +02:00
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