Hi Aleks, On Wed, Feb 17, 2016 at 04:30:06PM +0100, Aleksandar Lazic wrote: > Hi. > > how difficult is it to be able to add "log stdout;" to haproxy? > > I ask because in some PaaS environment is it difficult to setup a > dedicated user yust for haproxy. > > It fits also a little bit better to http://12factor.net/logs
It's been discussed a few times in the past. The response is "no". It's totally insane to emit logs to a blocking destination. Your whole haproxy process will run at the speed of the logs consumer and the log processing will incure its latency to the process. If one day we implement an synchronous stream logging task, this could change, but for now we send immediate logs as datagrams in order never to block. To get an idea about what it can look like with blocking logs, simply run "haproxy -d 2>&1 | more" and don't press any key. You'll quickly see that the system continues to accept new connections and that they will randomly freeze at various steps. Regards, Willy
