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ubuntu_hortonworks [2016/01/28 11:18] steve |
ubuntu_hortonworks [2016/01/28 11:23] steve |
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</code> | </code> | ||
- | Disable IPv6 in ''/etc/sysctl.conf'': | + | Disable IPv6 completely in ''/etc/sysctl.conf''. HortonWorks also recommends disabling swapping completely, and increasing max user instances: |
<code> | <code> | ||
Line 27: | Line 27: | ||
net.ipv6.conf.default.disable_ipv6 = 1 | net.ipv6.conf.default.disable_ipv6 = 1 | ||
net.ipv6.conf.lo.disable_ipv6 = 1 | net.ipv6.conf.lo.disable_ipv6 = 1 | ||
+ | vm.swappiness = 0 | ||
+ | fs.epoll.max_user_instances = 2048 | ||
</code> | </code> | ||
- | Also disable it for the running machine: | + | Disable it directly as well: |
<code> | <code> | ||
Line 35: | Line 37: | ||
sysctl -w net.ipv6.conf.default.disable_ipv6=1 | sysctl -w net.ipv6.conf.default.disable_ipv6=1 | ||
sysctl -w net.ipv6.conf.lo.disable_ipv6=1 | sysctl -w net.ipv6.conf.lo.disable_ipv6=1 | ||
+ | sysctl -w vm.swappiness=0 | ||
+ | sysctl -w fs.epoll.max_user_instances=2048 | ||
+ | </code> | ||
+ | |||
+ | HortonWorks recommends disabling transparent hugepages as well. Add to ''/etc/rc.local'': | ||
+ | |||
+ | <code> | ||
+ | echo never > /sys/kernel/mm/transparent_hugepage/enabled | ||
+ | echo never > /sys/kernel/mm/transparent_hugepage/defrag | ||
</code> | </code> | ||
Line 43: | Line 54: | ||
apt-key adv --recv-keys --keyserver keyserver.ubuntu.com B9733A7A07513CAD | apt-key adv --recv-keys --keyserver keyserver.ubuntu.com B9733A7A07513CAD | ||
aptitude update | aptitude update | ||
+ | </code> | ||
+ | |||
+ | Install the Ambari package: | ||
+ | |||
+ | <code> | ||
+ | ambari-server | ||
</code> | </code> |