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  1. Ambari
  2. AMBARI-21254

Alert if linux kernel changes are not in place for LLAP

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      Following changes were made per rbalamohan's recommendation (count has been bumped up from 8K to 16K for somaxconn and backlog).

      sudo sysctl -w net.core.somaxconn=16384 
sudo sysctl -w net.core.netdev_max_backlog=16384
sudo sysctl -w net.ipv4.ip_local_port_range="4096    60999"
sudo sysctl -w net.ipv4.tcp_fin_timeout=10
sudo sysctl -w vm.swappiness=0
sudo sysctl -w vm.dirty_ratio=80

      Since these configs has significant impact on shuffle, should this be enforced/alerted somehow to the user.

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            Unassigned Unassigned
            prasanth_j Prasanth Jayachandran
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              Created:
              Updated: