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Define ELK stack.

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Anjali Sharma answered on January 8, 2023 Popularity 10/10 Helpfulness 2/10

answer Define ELK stack.

Define ELK stack.

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The ELK Stack is made of three open-source products: 1) Elasticsearch, 2) Logstash, and 3) Kibana.

Elasticsearch: It is a NoSQL database which is based on the open-source search engine called Lucene.

Logstash: It is a data processing pipeline tool which accepts inputs from sources, performs different transformations, and exports the data to targets.

Kibana: Kibana helps users to visualize data with graphs and chart in Elasticsearch.

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Date;

import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
class ELKController {
	private static final Logger LOG = Logger.getLogger(ELKController.class.getName());

	@Autowired
	RestTemplate restTemplete;

	@Bean
	RestTemplate restTemplate() {
		return new RestTemplate();
	}

	@RequestMapping(value = "/elk")
	public String helloWorld() {
		String response = "Welcome to JavaInUse" + new Date();
		LOG.log(Level.INFO, response);

		return response;
	}

	@RequestMapping(value = "/exception")
	public String exception() {
		String response = "";
		try {
			throw new Exception("Exception has occured....");
		} catch (Exception e) {
			e.printStackTrace();
			LOG.error(e);

			StringWriter sw = new StringWriter();
			PrintWriter pw = new PrintWriter(sw);
			e.printStackTrace(pw);
			String stackTrace = sw.toString();
			LOG.error("Exception - " + stackTrace);
			response = stackTrace;
		}

		return response;
	}
}

https://www.javainuse.com/spring/springboot-microservice-elk

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: elk javascript

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Contributed on Jan 08 2023

Anjali Sharma

0 Answers Avg Quality 2/10

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