Elasticsearch7.2.1环境搭建

OS：CentOS release 6.9

1 ES获取

elasticsearch-7.2.1-linux-x86_64.tar.gz

curl -L -O https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.2.1-linux-x86_64.tar.gz

2 OS配置

ulimit -n
vi /etc/security/limits.conf

-------------打开最大文件数------------------------
*              soft    nproc   65535
*              hard    nproc   65535
*              soft    nofile  65535
*              hard    nofile  65535

vi /etc/sysctl.conf

------------添加内容------------------------
vm.max_map_count=262144


sysctl -p

3 elasticsearch.yml

/app/elasticsearch/config/elasticsearch.yml

1】节点192.168.1.31

cluster.name: elk-es
node.name: node-01
network.host: 192.168.1.31
discovery.seed_hosts: ["192.168.1.31", "192.168.1.32", "192.168.1.33"]
cluster.initial_master_nodes: ["node-01","node-02","node-03"]
bootstrap.system_call_filter: false

2】节点192.168.1.32

cluster.name: elk-es
node.name: node-02
network.host: 192.168.1.32
discovery.seed_hosts: ["192.168.1.31", "192.168.1.32", "192.168.1.33"]
cluster.initial_master_nodes: ["node-01","node-02","node-03"]
bootstrap.system_call_filter: false

3】节点192.168.1.33

cluster.name: elk-es
node.name: node-03
network.host: 192.168.1.33
discovery.seed_hosts: ["192.168.1.31", "192.168.1.32", "192.168.1.33"]
cluster.initial_master_nodes: ["node-01","node-02","node-03"]
bootstrap.system_call_filter: false

4 jvm.options

/app/elasticsearch/config/jvm.options

-Xms30g 
-Xmx30g 

#-XX:+UseConcMarkSweepGC
-XX:+UseG1GC

5 JDK环境变量

vi /app/elasticsearch/bin/elasticsearch

---------------添加内容---------------------
export JAVA_HOME=/app/elasticsearch/jdk
export PATH=$JAVA_HOME/bin:$PATH

6 启动关闭

cd /app/elasticsearch/bin

# 启动
./elasticsearch -d

# 关闭
ps -ef|grep elasticsearch|awk '{print $2}'|xargs kill -9

7 集群健康检查

curl -XGET "http://10.110.39.241:9200/_cluster/health"

curl -XGET "http://10.110.39.241:9200/_cat/health?v"

curl -XGET "http://10.110.39.241:9200/?pretty"

8 日志索引清除

delete_es_index.sh

#/bin/bash
#es-index-clear
#只保留7天内的日志索引
LAST_DATA=`date -d "-8 days" "+%Y.%m.%d"`
curl -XDELETE 'http://10.119.97.210:9200/*-'${LAST_DATA}'*'