你好，这里的每个人都有一个有关apache spark中的log4j的问题。在Spark Log4j中，如果我们使用" log4j.rootcategory = warn"，则意味着它将过滤出所有警告日志，但是现在，如果我只想过滤掉" spark"one_answers" yarn"日志，那么配置应该如何？
log4j.rootCategory=WARN, console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss} %p %c{1}: %m%n
下面的一些Spark Log4j配置软件包示例。
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# Set everything to be logged to the file target/unit-tests.log
#log4j.rootCategory=DEBUG, file
log4j.rootLogger=INFO,stdout
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.append=true
log4j.appender.file.file=target/unit-tests.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss.SSS} %t %p %c{1}: %m%n
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 (%F:%M(%L)) - %m%n
log4j.threshhold=ALL
# Ignore messages below warning level from a few verbose libraries.
log4j.logger.com.sun.jersey=WARN
log4j.logger.org.eclipse.jetty=WARN
log4j.logger.org.mortbay=WARN
log4j.logger.org.spark-project.jetty=WARN
# test package itself
log4j.logger.org.apache.spark.deploy.history.yarn=DEBUG
log4j.logger.org.apache.spark.deploy.history=DEBUG
log4j.logger.org.apache.spark.deploy.history.yarn.YarnTimelineUtils=INFO
log4j.logger.org.mortbay.jetty=WARN
# Spark noise
log4j.logger.org.apache.spark.ContextCleaner=WARN
log4j.logger.org.apache.spark.storage=WARN
log4j.logger.org.apache.spark.scheduler=WARN
log4j.logger.org.apache.spark.sparkEnv=WARN
log4j.logger.org.apache.spark.SecurityManager=WARN
log4j.logger.org.apache.spark.MapOutputTrackerMasterActor=WARN
log4j.logger.org.apache.spark.HttpFileServer=WARN
log4j.logger.org.apache.spark.util.AkkaUtils=WARN
log4j.logger.org.apache.spark.network.netty=WARN
log4j.logger.org.apache.spark.MapOutputTrackerMasterEndpoint=WARN
# Akka
log4j.logger.akka.remote=WARN
log4j.logger.akka.remote.Remoting=WARN
# Hadoop source debugging
log4j.logger.org.apache.hadoop.yarn.client.api=DEBUG
log4j.logger.org.apache.hadoop.yarn.server.timeline=DEBUG
#crank back on some Hadooop noise
log4j.logger.org.apache.hadoop=INFO
log4j.logger.org.apache.hadoop.http=ERROR
log4j.logger.org.apache.hadoop.ipc=ERROR
log4j.logger.org.apache.hadoop.util.JvmPauseMonitor=ERROR
log4j.logger.org.apache.hadoop.util.Shell=ERROR
log4j.logger.org.apache.hadoop.util.LightWeightGSet=ERROR
log4j.logger.org.apache.hadoop.util.NativeCodeLoader=ERROR
log4j.logger.org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner=WARN
log4j.logger.org.apache.hadoop.hdfs.server.blockmanagement=WARN
log4j.logger.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=WARN
log4j.logger.org.apache.hadoop.hdfs=WARN
log4j.logger.BlockStateChange=WARN
log4j.logger.org.apache.hadoop.yarn.factories.impl=WARN
log4j.logger.org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor=WARN
log4j.logger.org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl=WARN
log4j.logger.org.apache.hadoop.yarn.server.resourcemanager.security=WARN
log4j.logger.org.apache.hadoop.metrics2=ERROR
log4j.logger.org.apache.hadoop.util.HostsFileReader=WARN
log4j.logger.org.apache.hadoop.yarn.event.AsyncDispatcher=WARN
log4j.logger.org.apache.hadoop.security.token.delegation=WARN
log4j.logger.org.apache.hadoop.yarn.util.AbstractLivelinessMonitor=WARN
log4j.logger.org.apache.hadoop.yarn.server.nodemanager.security=WARN
log4j.logger.org.apache.hadoop.yarn.server.resourcemanager.RMNMInfo=WARN
log4j.logger.org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager=FATAL
log4j.logger.org.apache.hadoop.yarn.server.timeline.security.TimelineDelegationTokenSecretManagerService=INFO