Solr的日志配置

solr的日志配置可以在 ../server/resources/log4j.properties中修改：

#  Logging level
solr.log=logs

#log4j.rootLogger=INFO, file, CONSOLE

log4j.rootLogger=INFO, file

#log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
#log4j.appender.CONSOLE.layout=org.apache.log4j.EnhancedPatternLayout
#log4j.appender.CONSOLE.layout.ConversionPattern=%-4r %-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

log4j.logger.org.apache.zookeeper=WARN
log4j.logger.org.apache.hadoop=WARN

# set to INFO to enable infostream log messages
log4j.logger.org.apache.solr.update.LoggingInfoStream=OFF

我本来是设置log4j.rootLogger=INFO, file, CONSOLE的，但是console的log过大导致磁盘空间满，所以干脆关掉了CONSOLE