[Elastic Stack] Elastic Stack 정리

# Elastic Stack

1. Elastic Stack

2. Elasticsearch

2-1. NRT(Near Realtime)

2-2. Cluster

2-3. Node

2-4. Index

2-5. Type

2-6. Document

2-7. Shards

2-8. Replication

3. Logstash

3-1. Input

3-2. Filter

3-3. Output

3-4. Codec

4. Kibana

5. Beats

5-1. Filebeat

5-2. Packetbeat

5-3. MetricBeat

5-4. WinlogBeat

6. ELK Stack Architecture

6-1. Small

6-2. Large