Elasticsearch-linux环境部署-安装7.3.0版本

elasticsearch 7以上版本开始内置了jdk，如本文中部署的7.3.0版本就内置了jdk 11，如果使用的服务器已经安装配置了jdk 1.8的话，可以直接使用elasticsearch-7.3.0自带的jdk。

解压压缩文件

cd /data2
tar -zxvf elasticsearch-7.3.0-linux-x86_64.tar.gz

更改配置文件elasticsearch.yml

path.data: /data2/elasticsearch-7.3.0/data
path.logs: /data2/elasticsearch-7.3.0/logs
network.host: 0.0.0.0
http.port: 19200
#  以下配置都是出现异常后的，新增的配置 一台服务器中部署两个elasticsearch不同版本的服务
#  注：node.name 的值要与 cluster.initial_master_nodes 的值保持一致
node.name: node-2
discovery.seed_hosts: ["127.0.0.1"]
cluster.initial_master_nodes: ["node-2"]

更改配置文件jvm.options

# 由于在启动时，出现了异常，需要更换GC算法
#-XX:+UseConcMarkSweepGC
-XX:+UseG1GC

更换脚本文件elasticsearch-env

#if [ ! -z "$JAVA_HOME" ]; then
#  JAVA="$JAVA_HOME/bin/java"
#else
#  if [ "$(uname -s)" = "Darwin" ]; then
#    # OSX has a different structure
#    JAVA="$ES_HOME/jdk/Contents/Home/bin/java"
#  else
#    JAVA="$ES_HOME/jdk/bin/java"
#  fi
#fi
# 将以上原始的脚本段注释掉，使用以下内容；JAVA 为 elasticsearch自带的jdk的路径
if [ ! -z "$JAVA_HOME" ]; then
  JAVA="/data2/elasticsearch-7.3.0/jdk/bin/java"
else
  if [ "$(uname -s)" = "Darwin" ]; then
    # OSX has a different structure
    JAVA="/data2/elasticsearch-7.3.0/jdk/bin/java"
  else
    JAVA="/data2/elasticsearch-7.3.0/jdk/bin/java"
  fi
fi

切换es用户启动

su es
cd /data2/elasticsearch-7.3.0
# 后台启动elasticsearch服务
./bin/elasticsearch -d

查看是否启动成功

查看日志

cd /data2/elasticsearch-7.3.0/logs
# 查看日志是否正常启动
tail -f elasticsearch.log

查看进程
```
ps -ef |grep elasticsearch
```

查看api：http://10.10.87.20:19200/

{
  "name" : "centos74-0.novalocal",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "_na_",
  "version" : {
    "number" : "7.3.0",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "de777fa",
    "build_date" : "2019-07-24T18:30:11.767338Z",
    "build_snapshot" : false,
    "lucene_version" : "8.1.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

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Elasticsearch-linux环境部署-安装7.3.0版本

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