ELK(Elasticserach, Logstash, and Kibana) STACK

ELK stack some of you may have heard for the very first time and some of you are very well aware. For the people who heard for the very first time, you guys. Let’s have a walk-through of ELK stack components.

ELK stack is one of the most powerful upcoming technologies used in the field of analytics. Written in Java and built on top of Apache lucense.

Pros

1. Powerful search engine.
2. Can be used as an analytic platform.
3. Analyze application logs and system metrics.
4. APM(application performance management) keeps track of errors and system issues, CPU and memory usage.
5. Great at analyzing lots of data.
6. Using ML for predicting the future and forecast.
7. Anomaly detection

Cons

1. Don’t use elasticsearch as a primary data store.
2. Joins are expensive in elastic search.

ElasticSearch(Heart of ELK stack)

1. Performs aggregation faster as compared to SQL.

😮How?

(i) Elasticsearch uses a structure called Inverted Indexes which allow fast full-text searches.