Hi,
I'm running solr v6.6.5 using a pretty generic log4j properties file:
# Default Solr log4j config
# rootLogger log level may be programmatically overridden by -Dsolr.log.level
solr.log=${solr.log.dir}
log4j.rootLogger=INFO, file, CONSOLE
# Console appender will be programmatically disabled when Solr is started with
option -Dsolr.log.muteconsole
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.EnhancedPatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS}
%-5p (%t) [%X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%n
#- size rotation with log cleanup.
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.MaxFileSize=4MB
log4j.appender.file.MaxBackupIndex=9
#- File to log to and log format
log4j.appender.file.File=${solr.log}/solr.log
log4j.appender.file.layout=org.apache.log4j.EnhancedPatternLayout
#log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS/zzz }
%-5p (%t) [%X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%n
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd
HH:mm:ss}{America/New_York} %-5p (%t) [%X{collection} %X{shard} %X{replica}
%X{core}] %c{1.} %m%n
# Adjust logging levels that should differ from root logger
log4j.logger.org.apache.zookeeper=WARN
log4j.logger.org.apache.hadoop=WARN
log4j.logger.org.eclipse.jetty=WARN
log4j.logger.org.eclipse.jetty.server.Server=INFO
log4j.logger.org.eclipse.jetty.server.ServerConnector=INFO
# set to INFO to enable infostream log messages
log4j.logger.org.apache.solr.update.LoggingInfoStream=OFF
This is working.
It would be nice if there was a way to log the client's http header? We
eventually want to use this as an element in our log analysis software. Other
elements in the http request would be helpful too if that's possible. From
reading I see there is a way to write to more than one log, I've tried it,
along with trying to and it isn't working.
From reading it seems like I should be able to log a lot of information with
log4j. I get the impression the Solr implementation might be a 'lighter'
version tailored specifically for debugging and monitoring, not sure if that's
true.
Here is my latest log4j.properties that isn't working for reference:
# Default Solr log4j config
# rootLogger log level may be programmatically overridden by -Dsolr.log.level
solr.log=${solr.log.dir}
log4j.rootLogger=INFO, file, CONSOLE
# Console appender will be programmatically disabled when Solr is started with
option -Dsolr.log.muteconsole
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.EnhancedPatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS}
%-5p (%t) [%X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%n
#- size rotation with log cleanup.
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.MaxFileSize=4MB
log4j.appender.file.MaxBackupIndex=9
#- File to log to and log format
log4j.appender.file.File=${solr.log}/solr.log
log4j.appender.file.layout=org.apache.log4j.EnhancedPatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS} %-5p
(%t) [%X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%n
#-----
#- Logger for HTTP requests
log4j.logger.httplog=INFO, httplog
#- size rotation with log cleanup.
log4j.appender.httplog=org.apache.log4j.RollingFileAppender
log4j.appender.httplog.MaxFileSize=4MB
log4j.appender.httplog.MaxBackupIndex=9
#- File to log to and log format
log4j.appender.httplog.File=${solr.log}/solr_http.log
log4j.appender.httplog.layout=org.apache.log4j.PatternLayout
#log4j.appender.httplog.layout.ConversionPattern=%-5p - %d{yyyy-MM-dd
HH:mm:ss.SSS}; %C; %m\n
log4j.appender.httplog.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS}
%-5p (%t) [%X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%n
#-----
# Adjust logging levels that should differ from root logger
#log4j.logger.org.apache.zookeeper=WARN
#log4j.logger.org.apache.hadoop=WARN
log4j.logger.org.eclipse.jetty=WARN
log4j.logger.org.eclipse.jetty.server.Server=INFO
log4j.logger.org.eclipse.jetty.server.ServerConnector=INFO
log4j.logger.org.apache.solr.core.SolrCore.Request=DEBUG
log4j.logger.org.apache.solr.search=DEBUG
# set to INFO to enable infostream log messages
log4j.logger.org.apache.solr.update.LoggingInfoStream=OFF
Thank you for any assistance.
