Joseph Lynch created CASSANDRA-14816:
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Summary: Add Operating System Specific Setup Documentation for
Cassandra
Key: CASSANDRA-14816
URL: https://issues.apache.org/jira/browse/CASSANDRA-14816
Project: Cassandra
Issue Type: Wish
Components: Documentation and Website
Reporter: Joseph Lynch
There are a number of operating system tunings that can vastly improve
Cassandra's performance on Linux in particular things like:
# Setting {{/sys/block/${DEVICE}/queue/read_ahead_kb}} to something more
reasonable like 32
# Setting the qdisc on modern linux to something better like {{tc-fq}} with
{{bbr}}
# Setting {{nofile}} ulimits properly and {{fs.file-max}}
# Potentially raising {{vm.max_map_count}} even higher than the default debian
package does
# Using raid instead of jbod
# Mounting /tmp on a tmpfs and turning back on {{PerfDisableSharedMem}}
And many more ... I think many of the recommendations from [Amy
Tobey's|https://tobert.github.io/pages/als-cassandra-21-tuning-guide.html] 2.1
guide may still be pretty relevant.
Perhaps we can document some of these in the website's Operations section?
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