24  <!--

    25 log4j.rootCategory=INFO, stdout

    26 

    27 log4j.appender.stdout=org.springframework.data.document.mongodb.log4j.MongoLog4jAppender

    28 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

    29 log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - <%m>%n

    30 log4j.appender.stdout.host = localhost 

    31 log4j.appender.stdout.port = 27017

    32 log4j.appender.stdout.database = logs

    33 log4j.appender.stdout.collectionPattern = %X{year}%X{month}

    34 log4j.appender.stdout.applicationId = my.application

    35 log4j.appender.stdout.warnOrHigherWriteConcern = FSYNC_SAFE

    36 

    37 log4j.category.org.apache.activemq=ERROR

    38 log4j.category.org.springframework.batch=DEBUG

    39 log4j.category.org.springframework.data.document.mongodb=DEBUG

    40 log4j.category.org.springframework.transaction=INFO

    41 -->