Thanks! All of you :) Now I have much more understanding about tomcat logging.
Thanks a lot! On Mon, Aug 11, 2014 at 7:26 PM, Christopher Schultz < ch...@christopherschultz.net> wrote: > Sangeeta, > > On 8/11/14, 5:41 AM, sangeeta lal wrote: > > Actually I have data for other log levels also. Debug =600 statements, > > error=400 statements, trace =90 statements etc. > > I would usually expect in a typical project that there would be more > TRACE logging statements than anything else. On the other hand, DEBUG > tends to be the default log level used by most developers that I observe. > > There are likely many DEBUG statements in Tomcat's code that perhaps > should be TRACE statements. > > 400 ERROR versus 600 DEBUG seems like an awfully large number of ERROR > statements, but that may simply be evidence that most errors are > properly-logged while there is less DEBUG logging than average. > > > I am just curious, what could be the possible reason for having such few > > "fatal" statements. Can you give your opinion about this? > > There aren't too many things that ate truly /fatal/ to Tomcat. If we can > read config files, mostly everything is okay. One might consider that > failing to bind to a port is a fatal error, but Tomcat can start up > "successfully" even if no connectors can start properly. This is because > connectors can be configured on the fly, etc. and, in embedded contexts, > the state of the container can change from within and therefore zero > live connectors is no cause for alarm. > > Most errors don't take-down the container/JVM, so they aren't considered > fatal. > > I wouldn't expect to see very many FATAL log messages in any product, > really: the truly fatal things happen at the JVM level and would end up > emitting a message to stdout and possibly bringing-down the JVM entirely > (e.g. segmentation fault). > > If you have some /suggestions/ for what conditions might be fatal, we > might be able to comment on those specifically. But, we aren't going to > re-evaluate every component in Tomcat for logging to satisfy your > academic curiosity about logging practices in the Tomcat source. > > -chris > > -- Regards... Sangeeta Assistant Professor CSE Department @JIIT Noida
