#cdh的各组件的日志一般在/var/log目录下，查看/var/log下使用空间较大的文件夹，并由大到小排列
cd /var/log/
du -s ./* | sort -nr
rm -rf *.out.*
rm -rf *.log.*
#Cloudera Management Service服务产生的日志，存在/var/lib/.
cd /var/lib 
du -s ./* | sort -nr
rm /var/lib/cloudera-host-monitor/ts/*/partition*/* -rf
rm /var/lib/cloudera-service-monitor/ts/*/partition*/* -rf

#删除mysql的binlog日志
rm -rf /val/lib/mysql/mysql-bin.*