ES集群部署

1.环境准备

主机名	IP地址	CPU	内存	硬盘
gztxy-prd-es01	192.168.1.11	8	16	200
gztxy-prd-es01	192.168.1.12	8	16	200
gztxy-prd-es01	192.168.1.13	8	16	200

2.安装并配置

安装：

wget https://mirrors.huaweicloud.com/elasticsearch/6.8.2/elasticsearch-6.8.2.tar.gz
tar -xf elasticsearch-6.8.2.tar.gz -C /usr/local/
ln -s /usr/local/elasticsearch-6.8.2 /usr/local/elasticsearch
#安装分词插件
/usr/local/elasticsearch/bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.8.2/elasticsearch-analysis-ik-6.8.2.zip

配置：

#配置JVM参数，系统内存的一半
sed -i "s#-Xms1g#-Xms8g#g" /usr/local/elasticsearch/config/jvm.options
sed -i "s#-Xmx1g#-Xmx8g#g" /usr/local/elasticsearch/config/jvm.options

#配置ES配置
mv /usr/local/elasticsearch/config/elasticsearch.yml /usr/local/elasticsearch/config/elasticsearch.yml-bak
cat >/usr/local/elasticsearch/config/elasticsearch.yml<<EOF
cluster.name: gztxy-prd-behavior
#每个节点node名称唯一
node.name: node-01
path.data: /data/es/data
path.logs: /data/es/logs
path.repo: ["/es_backup/bak"]
node.master: true
node.data: true
node.ingest: true
bootstrap.memory_lock: true
network.host: 0.0.0.0
http.port: 9200
transport.tcp.port: 9300
discovery.zen.ping.unicast.hosts: ["192.168.1.11:9300", "192.168.1.12:9300","192.168.1.13:9300"]
discovery.zen.minimum_master_nodes: 2
http.cors.enabled: true
http.cors.allow-origin: "*"
http.cors.allow-headers: "Authorization,X-Requested-With,Content-Length,Content-Type"
thread_pool:
  write:
    queue_size: 1000
  search:
    queue_size: 1000
EOF

创建数据目录并授权：

#创建数据目录及备份目录
mkdir -p /data/es/{data,logs,backup}
mkdir -p /es_backup/bak

#目录授权
id app > /dev/null 2>&1 || useradd app
chown -R app.app /data/es/ /usr/local/elasticsearch* /es_backup

添加启动脚本：

cat >/usr/local/elasticsearch/config/elasticsearch.service <<EOF
[Unit]
Description=Elasticsearch
Documentation=http://www.elastic.co
Wants=network-online.target
After=network-online.target

[Service]
RuntimeDirectory=elasticsearch
Environment=ES_HOME=/usr/local/elasticsearch
Environment=ES_PATH_CONF=/usr/local/elasticsearch/config
Environment=PID_DIR=/usr/local/elasticsearch
EnvironmentFile=-/etc/sysconfig/elasticsearch
WorkingDirectory=/usr/local/elasticsearch

LimitMEMLOCK=infinity

User=app
Group=app

ExecStart=/usr/local/elasticsearch/bin/elasticsearch -p ${PID_DIR}/elasticsearch.pid --quiet

# StandardOutput is configured to redirect to journalctl since
# some error messages may be logged in standard output before
# elasticsearch logging system is initialized. Elasticsearch
# stores its logs in /var/log/elasticsearch and does not use
# journalctl by default. If you also want to enable journalctl
# logging, you can simply remove the "quiet" option from ExecStart.
StandardOutput=journal
StandardError=inherit

# Specifies the maximum file descriptor number that can be opened by this process
LimitNOFILE=65536

# Specifies the maximum number of processes
LimitNPROC=4096

# Specifies the maximum size of virtual memory
LimitAS=infinity

# Specifies the maximum file size
LimitFSIZE=infinity

# Disable timeout logic and wait until process is stopped
TimeoutStopSec=0

# SIGTERM signal is used to stop the Java process
KillSignal=SIGTERM

# Send the signal only to the JVM rather than its control group
KillMode=process

# Java process is never killed
SendSIGKILL=no

# When a JVM receives a SIGTERM signal it exits with code 143
SuccessExitStatus=143

[Install]
WantedBy=multi-user.target

# Built for distribution-6.3.2 (distribution)
EOF

启动：

cp /usr/local/elasticsearch/config/elasticsearch.service /usr/lib/systemd/system
chmod +x /usr/lib/systemd/system/elasticsearch.service
systemctl daemon-reload
systemctl enable elasticsearch > /dev/null 2>&1
systemctl start elasticsearch
systemctl status elasticsearch

3.测试