On Thu, 2024-02-01 at 11:50 +0000, James Pang (chaolpan) wrote: > We have a Postgresqlv14.8 server, client use Postgresql JDBC connections, today, > our server see a lot of “SubtransBuffer” and “SubtransSLRU” wait_event. > Could you help direct me what’s the possible cause and how to resolve this waits ? Today, the only feasible solution is not to create more than 64 subtransactions (savepoints or PL/pgSQL EXCEPTION clauses) per transaction. Don't use extensions or the JDBC driver option to simulate statement level rollback, that is the road to hell. Yours, Laurenz Albe
