Swappiness setting recommendation swap sysctl.conf performance improvement Hadoop system

Stupid Salmon answered on June 15, 2022 Popularity 1/10 Helpfulness 1/10

answer Swappiness setting recommendation swap sysctl.conf performance improvement Hadoop system

Swappiness setting recommendation swap sysctl.conf performance improvement Hadoop system

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# To change the swappiness on a running machine, use the following command:
echo "1" > /proc/sys/vm/swappiness

# To ensure the swappiness is set appropriately on reboot, use the following command:
echo "vm.swappiness=1" >> /etc/sysctl.conf

# NOTE: Virtual Memory swapping can have a large impact on the performance of a Hadoop system. 
# Because of the memory requirements of YARN containers and processes running on the nodes in the cluster.
# The swapping process out of memory to disk can cause serious performance limitations.

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Source: Grepper

Tags: hadoop performance setting shell swap system

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Contributed on Jun 15 2022

Stupid Salmon

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Swappiness setting recommendation swap sysctl.conf performance improvement Hadoop system

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