Installation and configuration of ELK Elasticsearch __elk

1. Terminology explanation
Cluster: Cluster
Node: Nodes
Index: Database similar to MySQL
Type: Table similar to MySQL
Doccument: Content
Shard: Data fragmentation, Shard maximum default doccument number is 2,147,483,519
Replicas: Number of copies of data, also used when querying, not just backup

2. Installation

(a) Elasticsearch run dependent JRE,JRE installation reference: Ubuntu Install JRE

(b) Download address: https://www.elastic.co/, click on the top right corner downloads

(c) The version I choose is elasticsearch-2.2.0.tar.gz (d) Decompression: TAR-ZXVF elasticsearch-2.2.0.tar.gz (e) decompression can be used, the execution program in the bin directory
(f) Background operation:./elasticsearch-d
3. Check cluster health status Curl ' localhost:9200/_cat/health?v ' status has three kinds: green,yellow,red

4. Check cluster node Curl ' localhost:9200/_cat/nodes?v ' * Callout node is master node

5. Show All index curl ' localhost:9200/_cat/indices?v '
PRI: Shard, default 5
Rep: replicas, default 1

6. Create Delete index
Index:customer
Pretty: Display optimization, line wrapping
Create: Curl-xput ' Localhost:9200/customer?pretty '
Delete: Curl-xdelete ' Localhost:9200/customer?pretty '

7. About Configuration
Es_home/config directory:
Master configuration: Elasticsearch.yml
Log configuration: Logging.yml
Single-point elasticsearch configuration reference:

Cluster.name:bs2test
network.host:0.0.0.0
path.logs:/data/elasticsearch/logs
path.data:/data/ Elasticsearch/data

Summary: A lot of details, the main reader network configuration document
Official website Document: https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html
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