Syslog drains no longer update application name changes without a restart

[cjett-pivotal]

I am a Platform Architect submitting this for a customer.

Issue

Syslog org.space.appname tag is not updated when an application name is changed via a syslog drain.

Context

Previous to PAS 2.8, an application could be renamed and the "org.space.appname" tag in syslog messages sent through a syslog drain would be dynamically updated. As of PAS 2.8, presumably because of a change in syslog adapter, these tags are no longer updated when an application name is changed unless the application is restarted/restaged.

Steps to Reproduce

Deploy an application
Bind to a syslog drain
Observe the syslog events
Rename the application
Observe the syslog events

Expected result

The org.space.appname tag would change on new syslog events after the application name is changed.

Current result

The "appname" tag remains the old application name after the application name is changed.

[cf-gitbot]

We have created an issue in Pivotal Tracker to manage this:

https://www.pivotaltracker.com/story/show/171936601

The labels on this github issue will be updated when the story is started.

[arl505]

This issue is affecting me as I have lost insight to the blue green deployment process, the name change is not being picked up and thus all logs come in with the same app name. Will watch this issue and hope for a fix soon.

[MapFilterMagic]

This still seems to be a persistent problem, specifically for blue-green app deployments where the names of the applications are being swapped. My org has had to get very inventive with regex solutions to try and get around this. Can someone take another look at this @philippthun ?