Mark Steben <mark.steben@xxxxxxxxxxxxxxxxx> writes: > One of our transactions is a queue processor that generates a ton of insert > statements per run of this transaction - as many as 1000 per run. > What has happened in new datacenter is that these transactions - while > running correctly and completely - do not write all the insert statements > to our sysout log - only some. Most, if not all, implementations of syslog will drop messages under sufficient load; I think they consider that a feature. It's not Postgres' fault and there's nothing we can do about it. Use a different logging mechanism if you can't afford to lose any messages. regards, tom lane