supabase / supavisor / 26449882287

76%

Build Type

push

github

Committed by web-flow

Commit Message

fix: chunk TLS sends to work around libpq async deadlock (#993)

libpq's async API (PQconsumeInput/PQisBusy) can hang when a TLS record
leaves bytes in OpenSSL's userspace buffer that pqReadData doesn't
drain in a single SSL_read: the client then polls the socket for data
that has already arrived. Capping our TLS records at libpq's 8KB
initial input buffer avoids producing the framing that triggers it.

See
https://www.postgresql.org/message-id/flat/57d1e8b1-d016-4cea-9b60-63cbdb40eb81%40iki.fi

Coverage Stats

3 of 13 new or added lines in 1 file covered. (23.08%)

4 existing lines in 4 files now uncovered.

2530 of 3306 relevant lines covered (76.53%)

55433.84 hits per line