Cassandra

Deploy CNPG Postgres on Kubernetes Cluster !!

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ConfigMaster Nodes: 1Worker Nodes: 3DB Cluster Nodes: 2Postgres Operator: CNPGCluster Mode: 1 primary 1 standby Cluster Details: Hostname IP Node Name Role External Storage master.localdomain  192.168.115.190 k3s-master master NA worker1.localdomain  192.168.115.195 k3s-worker1 worker 200GiB worker2.localdomain   192.168.115.196 k3s-worker2 worker 200GiB worker3.localdomain   192.168.115.197 k3s-worker3 worker 200GiB Entry in /etc/hosts: Create VG from external disks in 3 worker … Read more

Apache Cassandra Performance Tuning

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What is Apache Cassandra? ▪ NoSQL database ▪ Schema-free ▪ Very fast ‘write’ ▪ Cassandra is designed to handle big data workloads across multiple nodes with no single point of failure ▪ Cassandra addresses the problem of failures by employing a peer-to-peer distributed system across homogeneous nodes where data is distributed among all nodes in … Read more

Cassandra import & export

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Cassandra.csv file data: Create keyspace and create tables and then importing the data form local system to Cassandra: $./bin/nodetool status $./cqlsh 192.168.0.104 Below are copied csv data from local system: Now we will export data from Cassandra to local file system: