1 - DevOps can alleviate this issue .. implicit in the model. 2 - exploded directory deployment would allow you to change log4j assuming log4j is configured to reload its configuration on change
I'm not sure how classpath contexts are assigned to war files .. but I'm sure there is way. Anyone else have a suggestion? On 2/21/19, Thomas Rohde <t...@ordix.de> wrote: > Hi Chris, > > -----Ursprüngliche Nachricht----- > Von: Christopher Schultz [mailto:ch...@christopherschultz.net] > Gesendet: Mittwoch, 20. Februar 2019 16:41 > An: users@tomcat.apache.org > Betreff: Re: Logging web applications with log4j 1.2 > >> > -----BEGIN PGP SIGNED MESSAGE----- >> > Hash: SHA256 >> > >> > Thomas, >> > >> > On 2/20/19 08:00, Thomas Rohde wrote: >> > > I've some basic questions regarding the usage of log4j 1.2 in Tomcat >> > > 8.5. >> > > >> > > We are running more than one web application in Tomcat. Each >> > > application uses log4j via slf4j and ships the log4j.jar in >> > WEB-INF/lib. The Tomcat itself uses JULI. >> > >> > We are using a common log4j.xml file for configuration. >> > >> > The file path is set as system property in CATALINA_OPTS as >> > follows: -Dlog4j.configuration=/path/to/file/log4j.xml >> > >> > 1. Is this a valid setup or are there any side effects in >> > initialization log4j by the different WebAppClassLoaders? >> >> You are not using classpath-based config-file-loading, so it should not be >> a problem[*]. >> >> > 2. We are observing weird things in rolling the files hourly. The >> > timestamp of the log messages doesn't fit to the timestamp suffix of >> > the file. Why does this happen? >> >> Possibly conflicting time zones, somewhere? Because log4j.jar is in each >> application's class loader, they CAN have different in-memory >> configurations. > No there are no different time zones in use. > >> >> [*] While this will work, why would you ever want multiple applications to >> have their logging configuration all tied together? >> Why not separate the logging configuration into one config-per web >> application? OR are you trying to unify all logging into the same file(s >> )? > Yes I would like to do that, but I'm not sure how to achieve it without > putting the log4j.xml into the WAR file. Do you have any hint? > >> >> - -chris >> -----BEGIN PGP SIGNATURE----- >> Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ >> >> iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAlxtdSUACgkQHPApP6U8 >> pFhxow//T+5ALVYJcljqLxykHND7ZSy9NHf0+a+jnWzlDO5S6oO+bxjso9raJZYC >> jUG4nhBwuAtD5MWyS04t0UedYUBP+n1iw4aAGs7PrhFgPxLiHZpMOTBBaeDSYgny >> bI+7GuqOhkiauPA8Jb6guE8SkrT18d9X+k7xzy6puYgqbTws0iwk2yEmSV+KNtXy >> 0EsVC20KGhU9pCdD7MLSpYX8PaM8sctazxSSVMygL9Ed03WKkJ6BRPavq4ao1uGg >> V0ZlTQb7f9PRPOXOQzoAlsaWNTCVRKQES82/HHJE/uJG5tg7jnQ5Syjs53FyfVwH >> 0AtfNpJiOI4LES5ejR7E5JZ8Lx0/J41XwsPO5hOmYaiHHs35EFtozCETNNwjYxcb >> 245z++YsBw0bnBDRpAFi5Kq5UL8ludo0CqDTfKQSIqrMoNHoiULm4U3niGl2P01w >> O8k2KrwqtYWu77esh+TpJpXTTaLnEhCc+YWFGWnER3w8WAOHitvjbmAi21gL3NIG >> 3PJEFEdrNMaoI2h3SkK+DJzuVVJRmXRMV2wduX4+3qGW6l31Jo3ihFiDDdXyGB+b >> jtpU1JHYfYP+ck8mEXgOvI6RXZEG7R8Ef7ectYuKdhRRpE+S9wx1llZminsxY/fr >> 0apA+L6paBo9R7EGxJVt237wx/L+tRnfF5raLZoAJrkks7SkWgE= >> =sjai >> -----END PGP SIGNATURE----- >> > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
