zombodb安裝試用

pg 數據庫安裝

參考如下安裝

yum install https://download.postgresql.org/pub/repos/yum/10/redhat/rhel-7-x86_64/pgdg-centos10-10-2.noarch.rpm
yum install postgresql10
yum install postgresql10-server
yum install -y postgresql10-contrib

安裝zombodb 擴展

• 下載pg10 版本的擴展

wget https://www.zombodb.com/releases/v10-1.0.3/zombodb_centos7_pg10-10-1.0.3_1.x86_64.rpm

• 安裝zombodb

rpm -Uvh zombodb_centos7_pg10-10-1.0.3_1.x86_64.rpm

• pg 數據庫配置&&啟動

  為了簡單，直接使用沒有密碼的模式，在pg_hba.conf 添加一下配置,注意生產環境堅決不能這么搞

• pg_hba.conf

host all all 0.0.0.0/0 trust

• postgresql.conf

listen_addresses = '0.0.0.0'
port = 5432

• 數據庫啟動

/usr/pgsql-10/bin/postgresql-10-setup initdb
systemctl enable postgresql-10
systemctl start postgresql-10

安裝es

為了方便docker 安裝

• docker 安裝（可選，如果沒有安裝的話）

yum install -y yum-utils
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum install -y docker-ce
加速
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://b3uey254.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

• docker-compose 文件

version: '2'
services:
  elasticsearch:
    image: elasticsearch:6.6.0
    ports: 
    - "9200:9200"
    environment:
      - http.host=0.0.0.0
      - transport.host=0.0.0.0
      - network.host=0.0.0.0
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    mem_limit: 1g

可能需要配置系統vm 參數
echo vm.max_map_count=655360 >> /etc/sysctl.conf && \
sysctl -p

• 啟動

docker-compose up -d

配置擴展

• 創建擴展

CREATE EXTENSION zombodb;

• 創建測試表

CREATE TABLE products (
    id SERIAL8 NOT NULL PRIMARY KEY,
    name text NOT NULL,
    keywords varchar(64)[],
    short_summary text,
    long_description zdb.fulltext, 
    price bigint,
    inventory_count integer,
    discontinued boolean default false,
    availability_date date
);

• 導入測試數據

COPY products FROM PROGRAM 'curl https://raw.githubusercontent.com/zombodb/zombodb/master/TUTORIAL-data.dmp';

• 創建索引

CREATE INDEX idxproducts 
                     ON products 
                  USING zombodb ((products.*))
                   WITH (url='http://localhost:9200/');

• 查詢

SELECT * FROM products WHERE products ==> 'sports box';

• 查看查詢計划
  
• es 索引數據
  
• 擴展的schema
  

說明

zombodb 功能很強大，使用標准擴展我們可以方便的進行全文檢索系統的開發，同時集合graphql 以及timescaledb 我們可以設計強大的分析系統

參考資料

https://github.com/zombodb/zombodb/blob/master/INSTALL.md
https://hub.docker.com/_/elasticsearch?tab=tags
https://www.postgresql.org/download/linux/redhat/
https://github.com/zombodb/zombodb/blob/master/TUTORIAL.md