Dgraph安装以及使用1

it2022-05-05  220

1.首先安装docker和docker-compose:

 docker:

    curl -sSL https://get.daocloud.io/docker | sh

将当前用户添加到docker用户组:sudo gpasswd -a ${USER} docker su root 切换到root用户 su yifan 再切换到原来的应用用户以上配置才生效

   docker-compose:

   apt remove docker-compose

   pip install docker-compose -i https://mirrors.aliyun.com/pypi/simple/

   在.bashrc中增加

   export PATH="/home/yifan/.local/bin":$PATH

2. 编写docker-compose:

version: "3" services: zero: image: dgraph/dgraph:latest volumes: - ./data0/data-volume:/dgraph ports: - 5080:5080 - 6080:6080 command: dgraph zero --my=zero:5080 --replicas 3 server_1: image: dgraph/dgraph:latest hostname: "server_1" volumes: - ./data1/data-volume:/dgraph ports: - 8080:8080 - 9080:9080 command: dgraph alpha --my=server_1:7080 --lru_mb=2048 --zero=zero:5080 server_2: image: dgraph/dgraph:latest hostname: "server_2" volumes: - ./data2/data-volume:/dgraph ports: - 8081:8081 - 9081:9081 command: dgraph alpha --my=server_2:7081 --lru_mb=2048 --zero=zero:5080 -o 1 server_3: image: dgraph/dgraph:latest hostname: "server_3" volumes: - ./data3/data-volume:/dgraph ports: - 8082:8082 - 9082:9082 command: dgraph alpha --my=server_3:7082 --lru_mb=2048 --zero=zero:5080 -o 2 ratel: image: dgraph/dgraph:latest hostname: "ratel" ports: - 8000:8000 command: dgraph-ratel   3.启动docker-compose: docker-compose up -d   4.查看界面: http://localhost:8000   以下内容参考了:https://blog.csdn.net/hotqin888/article/details/81156959

运行

1) 添加数据

{ set { _:luke <name> "Luke Skywalker" . _:leia <name> "Princess Leia" . _:han <name> "Han Solo" . _:lucas <name> "George Lucas" . _:irvin <name> "Irvin Kernshner" . _:richard <name> "Richard Marquand" . _:sw1 <name> "Star Wars: Episode IV - A New Hope" . _:sw1 <release_date> "1977-05-25" . _:sw1 <revenue> "775000000" . _:sw1 <running_time> "121" . _:sw1 <starring> _:luke . _:sw1 <starring> _:leia . _:sw1 <starring> _:han . _:sw1 <director> _:lucas . _:sw2 <name> "Star Wars: Episode V - The Empire Strikes Back" . _:sw2 <release_date> "1980-05-21" . _:sw2 <revenue> "534000000" . _:sw2 <running_time> "124" . _:sw2 <starring> _:luke . _:sw2 <starring> _:leia . _:sw2 <starring> _:han . _:sw2 <director> _:irvin . _:sw3 <name> "Star Wars: Episode VI - Return of the Jedi" . _:sw3 <release_date> "1983-05-25" . _:sw3 <revenue> "572000000" . _:sw3 <running_time> "131" . _:sw3 <starring> _:luke . _:sw3 <starring> _:leia . _:sw3 <starring> _:han . _:sw3 <director> _:richard . _:st1 <name> "Star Trek: The Motion Picture" . _:st1 <release_date> "1979-12-07" . _:st1 <revenue> "139000000" . _:st1 <running_time> "132" . } }

拷贝到命令行,切换到mutate,然后run

2) 添加索引

curl localhost:8080/alter -XPOST -d $' name: string @index(term) . release_date: datetime @index(year) . revenue: float . running_time: int . ' | python -m json.tool | less

3) 查询

{ me(func:allofterms(name, "Star Wars")) @filter(ge(release_date, "1980")) { name release_date revenue running_time director { name } starring { name } } }

拷贝到命令行,切换到query,然后run

     

转载于:https://www.cnblogs.com/jy451/p/10664431.html

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