安装CDH5.4.0的时候,Validations界面中有以下提示内容,意思是需要在/etc/sysctl.conf中设置swappiness值为10,<br /><br />Cloudera recommends setting /proc/sys/vm/swappiness <span style="color:#E53333;">to at most 10. Current setting is 60</span>. Use the sysctl command to change this setting at runtim...【阅读全文】