Mat Brown wrote: > Hi all, > > Wondering if anyone can point me at a simple way to specify basic > logging options (log level, log file location) when starting the Solr > example jar from the command line. > > As a bit of background, I maintain a Ruby library for Solr called > Sunspot that ships with a Solr installation for ease of use. Sunspot > includes a script for starting Solr with various options, including > logging options. With Solr 1.3, I was able to write out a > logging.properties file and then set the system property > java.util.logging.config.file via the command line; this no longer > seems to work with Solr 1.4. > > I understand that Solr 1.4 has moved to SLF4J, but I haven't been able > to find a readily available answer to the above question in the SLF4J > or Solr logging documentation. To be honest, I've always found logging > in Java rather mystifying. > > Any help much appreciated! > Mat > By default, even though Solr uses SLF4J, it will actually use the Java Util logging Impl:
http://wiki.apache.org/solr/SolrLogging So you just specify a util logging properties file on the sommand line with: -Djava.util.logging.config.file=myLoggingConfigFilePath An example being: handlers=java.util.logging.FileHandler, java.util.logging.ConsoleHandler # Default global logging level. # Loggers and Handlers may override this level .level=INFO java.util.logging.ConsoleHandler.level=INFO java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter # --- FileHandler --- # Override of global logging level java.util.logging.FileHandler.level=ALL # Naming style for the output file: # (The output file is placed in the directory # defined by the "user.home" System property.) java.util.logging.FileHandler.pattern=%h/java%u.log # Limiting size of output file in bytes: java.util.logging.FileHandler.limit=50000 # Number of output files to cycle through, by appending an # integer to the base file name: java.util.logging.FileHandler.count=1 # Style of output (Simple or XML): java.util.logging.FileHandler.formatter=java.util.logging.SimpleFormatter -- - Mark http://www.lucidimagination.com
