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  • Copy the default configuration file of log4j (provided with ONOS) inside the proper config folder

    Code Block
    languagetext
    $ cp ~/onos/tools/package/etc/org.ops4j.pax.logging.cfg ~/onos/tools/package/config/org.ops4j.pax.logging.cfg
  • Edit the configuration file with the editor you prefer and modify it accordingly

    Code Block
    languagetext
    #
    #       http://www.apache.org/licenses/LICENSE-2.0
    #
    #    Unless required by applicable law or agreed to in writing, software
    #    distributed under the License is distributed on an "AS IS" BASIS,
    #    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    #    See the License for the specific language governing permissions and
    #    limitations under the License.
    #
    ################################################################################
    
    # Root logger
    log4j.rootLogger=INFO, out, syslog, osgi:*
    log4j.throwableRenderer=org.apache.log4j.OsgiThrowableRenderer
    
    # CONSOLE appender not used by default
    log4j.appender.stdout=org.apache.log4j.ConsoleAppender
    log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
    log4j.appender.stdout.layout.ConversionPattern=%d{ISO8601} | %-5.5p | %-16.16t | %-32.32c{1} | %X{bundle.id} - %X{bundle.name} - %X{bundle.version} | %m%n
    
    # Syslog appender
    log4j.appender.syslog=org.apache.log4j.net.SyslogAppender
    log4j.appender.syslog.layout=org.apache.log4j.PatternLayout
    log4j.appender.syslog.layout.ConversionPattern=%d{ISO8601} | %-5.5p | %-16.16t | %-32.32c{1} | %X{bundle.id} - %X{bundle.name} - %X{bundle.version} | %m%n
    log4j.appender.syslog.syslogHost=IP-OF-SYSLOG-SERVER
    log4J.appender.syslog.facility=KARAF
    log4j.appender.syslog.facilityPrinting=false
    
    # File appender
    log4j.appender.out=org.apache.log4j.RollingFileAppender
    log4j.appender.out.layout=org.apache.log4j.PatternLayout
    log4j.appender.out.layout.ConversionPattern=%d{ISO8601} | %-5.5p | %-16.16t | %-32.32c{1} | %X{bundle.id} - %X{bundle.name} - %X{bundle.version} | %m%n
    log4j.appender.out.file=${karaf.data}/log/karaf.log
    log4j.appender.out.append=true
    log4j.appender.out.maxFileSize=1MB
    log4j.appender.out.maxBackupIndex=10
    
    # Sift appender
    log4j.appender.sift=org.apache.log4j.sift.MDCSiftingAppender
    log4j.appender.sift.key=bundle.name
    log4j.appender.sift.default=karaf
    log4j.appender.sift.appender=org.apache.log4j.FileAppender
    log4j.appender.sift.appender.layout=org.apache.log4j.PatternLayout
    log4j.appender.sift.appender.layout.ConversionPattern=%d{ISO8601} | %-5.5p | %-16.16t | %-32.32c{1} | %m%n
    log4j.appender.sift.appender.file=${karaf.data}/log/$\\{bundle.name\\}.log
    log4j.appender.sift.appender.append=true
  • Reconfigure the target ONSO ONOS nodes / deploy ONOS, as described in the users guide on the wiki.