Clivern
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16 June 2019
Leader election is the process of designating a single node as the organizer of some task distributed among several nodes. The leader will be responsible for managing the others and coordinate the actions performed by other nodes. If for any reason the leader fails, other nodes will elect another leader and so on. This can help to ensure that nodes don't conflict with each other.
24 May 2019
It all began when I started to build some web services in golang. and everytime I have to create the whole architecture from scratch than solving whatever problem I was trying to solve.
08 May 2019
Consul DNS interface allows applications to make use of service discovery without any integration with Consul. For example, instead of making HTTP API requests to Consul, a host can use the DNS server directly via name lookups like clivern.service.us.consul.
27 April 2019
Everyone want to keep Django timezone support but sometimes you need to keep your SQL queries a way from timezone conversion especially if by default your application timezone is UTC. Django will do something like this `CONVERT_TZ(`app_incident`.`datetime`, 'UTC', 'UTC'))` and it will return `Null` if the timezone table is empty. Even that conversion is not even needed.
23 April 2019
By default Django has a `date` lookup that support timezones. It actually will wrap your field with `CONVERT_TZ` in case `USE_TZ` is `True`. This is pretty awesome unless you have timezones table empty because this call will return `Null.`
16 February 2019
Load balancers aren't efficient in a dynamic environment where we scale services up or down. Consul uses a registry to keep a real-time list of services, their location, and their health. Services query the registry to discover the location of upstream services and then connect directly. This allows services to scale up/down and gracefully handle failure
11 January 2018
Consul is a tool for discovering and configuring services in your infrastructure. It provides several key features like service discovery, health checking, KV store and multi datacenter support.
21 October 2017
Docker is a set of platform as a service (PaaS) products that use OS-level virtualization to deliver software in packages called containers. Containers are isolated from one another and bundle their own software, libraries and configuration files.
20 October 2017
Today Iβll show you how to build your own Facebook Messenger Chat Bot in Java. Weβll use Spark Web Framework, Racter Java Package, Gradle and Ngrok. So Letβs get started.
03 September 2017
One of the most difficult tasks for software engineers is scaling out the databases incase of large traffic applications. Today we will discuss one of the horizontal scaling techniques which is the Master-Master replication. Master-Master replication adds speed and redundancy and also distribute the writes load over many servers.