Fix "server closed connection unexpectedly" db issue#65
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The engine outlives individual requests, so pooled connections can be dropped server-side (idle timeouts, firewall reaps, failovers) while still sitting in the pool. pool_pre_ping validates a connection before use and transparently reconnects if it is dead; pool_recycle bounds connection age so they are refreshed before common idle-timeout windows. Without these, a stale connection surfaces as "server closed the connection unexpectedly". Assisted-by: Claude Opus 4.8 <noreply@anthropic.com> Signed-off-by: Lukas Puehringer <lukas.puehringer@eclipse-foundation.org>
mbarbero
approved these changes
Jul 9, 2026
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The engine outlives individual requests, so pooled connections can be dropped server-side (idle timeouts, firewall reaps, failovers) while still sitting in the pool. pool_pre_ping validates a connection before use and transparently reconnects if it is dead; pool_recycle bounds connection age so they are refreshed before common idle-timeout windows. Without these, a stale connection surfaces as "server closed the connection unexpectedly".
Assisted-by: Claude Opus 4.8 noreply@anthropic.com