hadoop和spark开启日志

# 开启日志
[root@bigdata04 neo4j-community-3.5.21]# cd /data/soft/spark-2.4.3-bin-hadoop2.7
[root@bigdata04 spark-2.4.3-bin-hadoop2.7]# sbin/start-history-server.sh


[root@bigdata01 hadoop-3.2.0]# history | grep mapred
   59  vi mapred-site.xml
   63          mapreduce_shuffle
   73          mapreduce_shuffle
  130  vi mapred-site.xml
  215  bin/mapred --daemon start historyserver
  479  bin/mapred --daemon start historyserver
  904  history | grep mapred
[root@bigdata01 hadoop-3.2.0]# bin/mapred --daemon start historyserver