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Cassandra

Cassandra

Tips

Here are some tips for performance tuning Cassandra

  • Use the right hardware: Choose hardware that is optimized for Cassandra workloads, including SSDs for storage and a high-performance network.
  • Tune the JVM: Cassandra is built on top of the Java Virtual Machine (JVM), so tuning the JVM can have a significant impact on performance. Set the right heap size, garbage - collection settings, and other JVM parameters to optimize performance.
  • Configure Cassandra settings: Tune the settings in the Cassandra configuration file to optimize performance, including the number of threads used for processing requests, the - maximum number of connections, and the maximum amount of memory allocated for the memtable.
  • Optimize data model: Design your data model carefully to optimize read and write performance. This includes choosing the right data types, using appropriate partition keys, - and avoiding over-indexing.
  • Use compression: Enable compression to reduce the amount of data stored on disk and improve read and write performance.
  • Monitor and optimize performance: Monitor performance metrics such as CPU usage, disk usage, and network throughput to identify bottlenecks and optimize performance.
  • Upgrade to the latest version: Upgrade to the latest version of Cassandra to take advantage of the latest performance improvements and bug fixes.
  • Use caching: Use caching to improve read performance by keeping frequently accessed data in memory.
  • Use batch operations: Use batch operations to reduce the number of round trips to the database and improve write performance.
  • Consider using partitioning: Partitioning allows you to split your data across multiple nodes, improving scalability and performance.

Installation

How to Install Cassandra on Ubuntu 22.04

# Install Java 8
apt-get install openjdk-8-jdk -y
java -version

# install the required dependencies
apt-get install apt-transport-https gnupg2 -y

# import the Cassandra GPG key
wget -q -O - https://www.apache.org/dist/cassandra/KEYS | apt-key add -
# add the Cassandra repository to APT
sh -c 'echo "deb http://www.apache.org/dist/cassandra/debian 311x main" > /etc/apt/sources.list.d/cassandra.list'

# install the Apache Cassandra
apt-get update -y
apt-get install cassandra -y
systemctl status cassandra

ss -antpl | grep java

# check the status
nodetool status
# cli connect
cqlsh
# flush the system cache 
nodetool flush system

# restart
systemctl restart cassandra

Reference

  • https://cassandra.apache.org/_/index.html
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