Access log issue after rotate

[ulisses79]

My application uses two undertow containers. One for regular business logic and the second one for actuators. There are two listeners at ports: 8080 and 8090 (actuators set via management.port property).

Observed behavior: in the access log we can see entries coming from both containers. Regular traffic and requests for /health resources that come from load-balancer.

Issue: at midnight when access log rotation takes place (at least we observe that at midnight) we ended up with three files: access.log, access-log.{date}.log and access-log.{date}-1.log.

Health entries are still visible in access.log and the file is growing. Regular traffic entries go to the last file.

It seems like there's a race condition when two containers attempt to rotate one common access.log file.

Spring version 1.3.0.RC1 and Undertow-core-1.3.0.Final

[philwebb]

Spring Boot 1.3.0.RC1 is quite old, have you seen the same problem with the latest 1.3 release?

[ulisses79]

My fault, Recently we have upgraded Spring Boot to 1.3.6.RELEASE and we observe the same results. Access.log stops recording the regular traffic.

[wilkinsona]

I think the root of the problem is that we have two Undertow deployments using the same access log file. When the Actuator's running on a separate port it needs to use a separate access log file too. Also, as far as I can tell, Tomcat has the same problem too.

[wilkinsona]

The current logic to reuse the same access log appears to be deliberate (see #1581) but I don't think it makes sense. I think we should use the same directory, but not the exact same file names.

[ulisses79]

Ok, Looking forward to seeing this issue get resolved in the upcoming releases.