Previous Part To know about what is Amazon Storage devices . Click here! What is Block Store ? — Concept of cloud hosted data persistence (such as physical hard drive, form of network-attached-storage[NAS]). Storage in such is organized as blocks (physical record, is sequence of bytes,bits). This Behavior are seen…

Before diving in to Aerospike, we should know about what is RDBMS vs NoSql. RDBMS (Relational Database) — Structured Schema dealing with Relational databases , which is effectively used in insert,search,update and delete database records. RDBMS is right option for ACID problems. Support Dynamic Queries.(Great choice for complex queries). Predefined…

Amazon Web Services (AWS) is one of the most “popular cloud infrastructure service provider” (like other Microsoft Azure, Google Cloud Platform,Digital Ocean,Heroku). The AWS EC2 Cloud server is absolutely unique and helped many resources in intensive business websites scale seamlessly across the globe. What is AWS ? — is comprehensive…

As you might have read about How Linux Boots it uses runlevels to determine what to do.Lets study runlevels and rc scripts in detail. Runlevels: Runlevels are the state to which computer intends to go or it intends to reach. There are total 7 runlevels. Runlevel 0: Halt or Shutdown Runlevel…

First step towards the most popular application development framework for enterprise Java applications. When Spring came out it was “simpler,light-weight alternative to J2EE, to make J2EE development easier”. Now hold on! what enterprise java refers too? — Its computer software that satisfy the needs of an organization rather than single/individual…

About Terraform : With Terminal a few bytes of code and no SSH logins we can spin up in minute , a production ready cluster and a capable of heavy work loads and here it comes “Terraform” — an extremely powerful tool written in “Go” that helps us “writing ,planing…

In Tradition IT World, there are limited number of servers to handle the application load.when the number of requests increases load on the server also increases, which cause failures and latency in system. Amazon web service provide Amazon EC2 auto scaling services to overcome this failure.Auto …

Storage Devices that available Simple Storage Service (S3): Glacier Elastic Block Store Elastic File System Storage Gateway Snowball. Simple Storage Service : ? Designed to store and access any kind of data over internet. Server-less Service Yes! Obviously file server ,an operating system, a hard disk but we don’t need…

Before Diving into Frequency rule type , let see some configuration common to rule types. ElastAlert has global configuration file “config.yaml” which defines several aspects of its operation. Configurations: es_host : host name of elasticsearch cluster. elastalert records metadata about it searches in es_host (which seen in previous elastalert index…