Can somebody explain in more detail about the problem with two Apache processes writing to the same log file? Is it because two processes can not open the same file for writing simultaneously? If that is the case - what will happen if 2nd Trac tries to access the opened file - is it paused until the lock is released or fails immediately? Is this error written to Apache error.log or Trac somehow intercepts and stubs it?
I'd like to receive all complete information if my Trac misbehaves, so if some of this info is lost - it is definitely bad for developers and admin troubleshooters. -- anatoly t. On Thu, Jun 3, 2010 at 7:49 PM, Noah Kantrowitz <[email protected]> wrote: > You can always use a backend like syslog that prevents this if you are > worried. > > --Noah > > On Jun 3, 2010, at 7:58 AM, Dexter, Gordon M. wrote: > >> I was looking into the logging code and I found that trac doesn't do much >> customization; just a standard python logging object. That should work fine >> in some cases, since the Python logging object is thread-safe. However it's >> not fully concurrency-safe for multiple processes, and we use Trac through >> mod_python, meaning there are always at least two apache processes running >> at any one time. The trac log is env specific, but the environment isn't >> linked to a specific apache process, so it sounds like it's possible to lose >> log events. Is there something I'm missing (e.g. special handling in >> mod_python) that prevents this? >> >> --Gordon >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Trac Development" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/trac-dev?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Trac Development" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/trac-dev?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Trac Development" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/trac-dev?hl=en.
