On Wed, Dec 17, 2008 at 10:54 PM, Ryan McKinley <ryan...@gmail.com> wrote: > I'm not sure I understand... > > are you suggesting that rather then configuring our logger like this: > static Logger log = LoggerFactory.getLogger(SolrCore.class); > > We get the Logger everytime we use it with something like: > Logger log = LoggerFactory.getLogger(classname+":"+core.getName() );
how about logging the core name using a context variable in Log4j? but you won't the logs in different files but you can know which core the log came from http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/MDC.html > > That seems like a lot of overhead for marginal gain... > > ------ > > Another option I can think of (shooting from the hip here) is to add the > core object to each log message. For example, rather then: > log.info( logid+"Searching for listeners: " +path ); > we call: > log.info( logid+"Searching for listeners: " +path, core ); > > this way, one *could* implement the SLF4J api to look for cores as > parameters and delegate the logger appropriately. > > other ideas? > > > On Dec 17, 2008, at 10:42 AM, Erik Hatcher wrote: > >> Can't we log with the core as part of the context of the logger, rather >> than just the classname? This would give you core logging granularity just >> by config, rather than scraping. >> >> Yes? >> >> Erik >> >> On Dec 17, 2008, at 9:47 AM, Ryan McKinley wrote: >> >>> As is, the log classes are statically bound to the class, so they are >>> configured for the entire VM context. >>> >>> Off hand i can't think of any good work around either. The only thing to >>> note is that most core specific log messages include the core name as a >>> prefix: [core0] ... >>> >>> ryan >>> >>> >>> On Dec 17, 2008, at 6:07 AM, Marc Sturlese wrote: >>> >>>> >>>> Hey there, >>>> >>>> My original app (before getting into Solr) use to have 3 index in the >>>> same >>>> web app. I used log4j with a log file per index. >>>> >>>> Now in Solr I have different cores and I am trying to set a log file per >>>> core via slf4 but don't know how to do it. >>>> As I understood this thread: >>>> >>>> http://www.nabble.com/Details-on-logging-in-Solr-td21027267.html#a21027540 >>>> You can just instantiate a log file per sol web_app and not per core? >>>> >>>> Thanks in advance >>>> -- >>>> View this message in context: >>>> http://www.nabble.com/setting-a-log-file-per-core-with-slf4-tp21051199p21051199.html >>>> Sent from the Solr - User mailing list archive at Nabble.com. >>>> >> > > -- --Noble Paul
