ScyllaDB Backup

Scylla is an open-source distributed NoSQL data store. It was designed to be compatible with Apache Cassandra while achieving significantly higher throughputs and lower latencies. Scylla is a fault tolerance system, even though it is recommended to regularly backup data to external storage. Backup is per node basis. Therefore take…

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Setup Puppet Server 5 on CentOS 7

Puppet is a ruby based configuration management tool (IT automation software), licensed under Apache 2.0 designed to help system administrators, automate many repetitive task they regularly perform . It is open-source, flexible, customizable framework for managing the configuratons of computer system. It defines and enforce the state of your infrustructure…

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ScyllaDB Monitoring

ScyllaDB Monitoring Stack can monitor all the Scylla infrastructure easily. Scylla team has beautifully explained, all the steps to setup monitoring. It’s very straight forward and any body can configure it using the below URLs. ScyllaDB URLs http://docs.scylladb.com/operating-scylla/monitoring/monitoring_stack/ http://docs.scylladb.com/operating-scylla/monitoring/monitor_without_docker/ Troubleshooting I’m just sharing up a scenario, where i faced some…

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Setup Cassandra Cluster on CentOS 7

Apache Cassandra is a free and open-source distributed NoSQL database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure. Cassandra offers robust support for clusters spanning multiple datacenters, with asynchronous masterless replication allowing low latency operations for…

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Setup Scylla Cluster on CentOS 7

Scylla Is Next Generation NoSQL. Power your mission-critical applications with the best traits of Apache Cassandra at 10x the performance and low tail-latency at all times. Prequisite CentOS 7.2 or later, for the 64-bit x86_64 architecture. ABRT conflict with Scylla coredump configuration. Remove it before installing Scylla: sudo yum remove…

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OrientDB DEMODB Database Queries

Connect to OrientDB console krishna@ubuntu:/opt/orientdb/bin$ ./console.sh OrientDB console v.3.0.0m2 (build 31b455cec3cc97d11be0748e31ed1a03ff6a23ac) https://www.orientdb.com Type ‘help’ to display all the supported commands. orientdb> orientdb> Connect to localhost orientdb> CONNECT remote:localhost root admin Disconnecting from the database [null]…OK Connecting to remote Server instance [remote:localhost] with user ‘root’…OK orientdb {server=remote:localhost/}> Connect to localhost with…

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