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level101/metrics_and_monitoring/observability/index.html
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<h2 id="_1"></h2>
<h1 id="observability">Observability</h1>
<p>Engineers often use observability when referring to building reliable
systems. <em>Observability</em> is a term derived from control theory, It is a
systems. <em>Observability</em> is a term derived from control theory, it is a
measure of how well internal states of a system can be inferred from
knowledge of its external outputs. Service infrastructures used on a
daily basis are becoming more and more complex; proactive monitoring
@@ -2177,7 +2177,7 @@ value and take further action.</p>
Logstash, Kibana), which provides centralized log processing. Beats is a
collection of lightweight data shippers that can ship logs, audit data,
network data, and so on over the network. In this use case specifically,
we are using filebeat as a log shipper. Filebeat watches service log
we are using Filebeat as a log shipper. Filebeat watches service log
files and ships the log data to Logstash. Logstash parses these logs and
transforms the data, preparing it to store on Elasticsearch. Transformed
log data is stored on Elasticsearch and indexed for fast retrieval.