@Kevin Vasko Please see this http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.4/bk_Knox_Gateway_Admin_Guide/content/ch06.html ... View more

@Kevin Vasko There are several vendors who provides SSO. "paid" Open Source SSO ... View more

@Robin Dong You have to do this in all the nodes. *** Disable THP *** In ambari host vi /etc/rc.local and add following lines if test -f /sys/kernel/mm/transparent_hugepage/enabled; then echo never > /sys/kernel/mm/transparent_hugepage/enabled fi if test -f /sys/kernel/mm/transparent_hugepage/defrag; then echo never > /sys/kernel/mm/transparent_hugepage/defrag fi ... View more

@Robin Dong See this /etc/init.d/iptables stop Disable SELinux and PackageKit and check the UMASK Value Disable THP /etc/init.d/ntpd start sysctl -w vm.swappiness=0 sysctl -w fs.file-max=300000 Again...please follow this as it will make things way easier https://gist.github.com/nsabharwal/683adf76260ea9010532 ... View more

@Michel Sumbul Based on the compression type...Yes If I correctly understand the slides, I should expect a raise of the CPU usage between 5% and 60% depending of the compression algorythm. That can be really important! HBASE - Link (Unofficial) HBASE official guide - Production systems should use compression with their ColumnFamily definitions. See Appendix C, Compression In HBase for more information. ... View more

@Abhishek Srivastava Did it help? ... View more

@Robin Dong It's really doc and please follow it step by step. Most of the production installs works on local repo. ... View more