log4j.properties

log4j.rootLogger=INFO, stdout 
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.MaxFileSize=100MB
log4j.appender.file.MaxBackupIndex=20
log4j.appender.file.File=logs/solr.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ISO8601} [%t] %-5p %c{3} %x - %m%n
log4j.logger.org.apache.zookeeper=WARN
log4j.logger.org.apache.http=WARN
log4j.logger.org.apache.solr.update.processor.LogUpdateProcessor=WARN

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ISO8601} [%t] %-5p %c{1} %x - %m%n