taosExplorer 参考手册
taosExplorer 是一个为用户提供 TDengine 实例的可视化管理交互工具的 web 服务,虽然它没有开源,但随开源版安装包免费提供。本节主要讲述其安装和部署。它的各项功能都是基于简单易上手的图形界面,可以直接尝试,如果有需要也可以参考高级功能和运维指南中的相关内容。为了确保访问 taosExplorer 的最佳体验,请使用 Chrome 79 及以上版本,或 Edge 79 及以上版本。
安装
taosExplorer 无需单独安装,从 TDengine 3.3.0.0 版本开始,它随着 TDengine 安装包一起发布,安装完成后,就可以看到 taos-explorer
服务。如果按照 GitHub 里步骤自己编译 TDengine 源代码生成的安装包不包含 taosExplorer。
配置
在启动 taosExplorer 之前,请确保配置文件中的内容正确。
# This is a automacically generated configuration file for Explorer in [TOML](https://toml.io/) format.
#
# Here is a full list of available options.
# Explorer server port to listen on.
# Default is 6060.
#
port = 6060
# IPv4 listen address.
# Default is 0.0.0.0
addr = "0.0.0.0"
# IPv6 listen address.
# ipv6 = "::1"
# explorer server instance id
#
# The instanceId of each instance is unique on the host
# instanceId = 1
# Explorer server log level.
# Default is "info"
#
# Deprecated: use log.level instead
log_level = "info"
# All data files are stored in this directory
# data_dir = "/var/lib/taos/explorer" # Default for Linux
# data_dir = "C:\\TDengine\\data\\explorer" # Default for Windows
# REST API endpoint to connect to the cluster.
# This configuration is also the target for data migration tasks.
#
# Default is "http://localhost:6041" - the default endpoint for REST API.
#
cluster = "http://localhost:6041"
# native endpoint to connect to the cluster.
# Default is disabled. To enable it, set it to the native API URL like "taos://localhost:6030" and uncomment it.
# If you enable it, you will get more performance for data migration tasks.
#
# cluster_native = "taos://localhost:6030"
# API endpoint for data replication/backup/data sources. No default option.
# Set it to API URL like "http://localhost:6050".
#
x_api = "http://localhost:6050"
# GRPC endpoint for "Agent"s.
# Default is "http://localhost:6055" - the default endpoint for taosX grpc API.
# You should set it to public IP or FQDN name like:
# "http://192.168.111.111:6055" or "http://node1.company.domain:6055" and
# ensure to add the port to the exception list of the firewall if it enabled.
grpc = "http://localhost:6055"
# CORS configuration switch, it allows cross-origin access
cors = true
# Enable ssl
# If the following two files exist, enable ssl protocol
#
[ssl]
# SSL certificate
#
# certificate = "/path/to/ca.file" # on linux/macOS
# certificate = "C:\\path\\to\\ca.file" # on windows
# SSL certificate key
#
# certificate_key = "/path/to/key.file" # on linux/macOS
# certificate_key = "C:\\path\\to\\key.file" # on windows
# log configuration
[log]
# All log files are stored in this directory
#
# path = "/var/log/taos" # on linux/macOS
# path = "C:\\TDengine\\log" # on windows
# log filter level
#
# level = "info"
# Compress archived log files or not
#
# compress = false
# The number of log files retained by the current explorer server instance in the `path` directory
#
# rotationCount = 30
# Rotate when the log file reaches this size
#
# rotationSize = "1GB"
# Log downgrade when the remaining disk space reaches this size, only logging `ERROR` level logs
#
# reservedDiskSize = "1GB"
# The number of days log files are retained
#
# keepDays = 30
说明:
port
:taosExplorer 服务绑定的端口。addr
:taosExplorer 服务绑定的 IPv4 地址,默认为0.0.0.0
。如需修改,请配置为localhost
之外的地址以对外提供服务。ipv6
:taosExplorer 服务绑定的 IPv6 地址,默认不绑定 IPv6 地址。instanceId
:当前 explorer 服务的实例 ID,如果同一台机器上启动了多个 explorer 实例,必须保证各个实例的实例 ID 互不相同。log_level
:日志级别,可选值为 "error", "warn", "info", "debug", "trace"。此参数已弃用,请使用log.level
代替。cluster
:TDengine 集群的 taosAdapter 地址。cluster_native
:TDengine 集群的原生连接地址,默认关闭。x_api
:taosX 的 gRPC 地址。grpc
:taosX 代理向 taosX 建立连接的 gRPC 地址。cors
:CORS 配置开关,默认为false
。当为true
时,允许跨域访问。ssl.certificate
:SSL 证书(如果同时设置了 certificate 与 certificate_key 两个参数,则启用 HTTPS 服务,否则不启用)。ssl.certificate_key
:SSL 证书密钥。log.path
:日志文件存放的目录。log.level
:日志级别,可选值为 "error", "warn", "info", "debug", "trace"。log.compress
:日志文件滚动后的文件是否进行压缩。log.rotationCount
:日志文件目录下最多保留的文件数,超出数量的旧文件被删除。log.rotationSize
:触发日志文件滚动的文件大小(单位为字节),当日志文件超出此大小后会生成一个新文件,新的日志会写入新文件。log.reservedDiskSize
:日志所在磁盘停止写入日志的阈值(单位为字节),当磁盘剩余空间达到此大小后停止写入日志。log.keepDays
:日志文件保存的天数,超过此天数的旧日志文件会被删除。
启动停止
然后启动 taosExplorer,可以直接在命令行执行 taos-explorer 或者使用 systemctl 命令:
systemctl start taos-explorer # Linux
sc.exe start taos-explorer # Windows
相应地,用如下命令停止
systemctl stop taos-explorer # Linux
sc.exe stop taos-explorer # Windows
问题排查
-
当通过浏览器打开 Explorer 站点遇到“无法访问此网站”的错误信息时,请通过命令行登录 taosExplorer 所在机器,并使用命令
systemctl status taos-explorer
检查服务的状态,如果返回的状态是inactive
,请使用命令systemctl start taos-explorer
启动服务。 -
如果需要获取 taosExplorer 的详细日志,可通过命令
journalctl -u taos-explorer
。 -
当使用 Nginx 或其他工具进行转发时,注意进行 CORS 设置或在配置文件中使用
cors = true
。这是一个 Nginx 配置文件 CORS 设置的例子:
http {
server {
listen 6060;
location ~* {
proxy_pass http://explorer;
if ($request_method = 'OPTIONS') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
add_header 'Access-Control-Max-Age' 86400;
add_header 'Content-Type' 'text/plain charset=UTF-8';
add_header 'Content-Length' 0;
return 204; break;
}
if ($request_method = 'POST') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
}
if ($request_method = 'GET') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
}
proxy_set_header Host $host:$server_port;
proxy_set_header X-Real-IP $remote_addr;
#proxy_http_version 1.1;
proxy_read_timeout 60s;
proxy_next_upstream error http_502 http_500 non_idempotent;
}
}
upstream explorer{
ip_hash;
server 192.168.1.65:6060 ;
server 192.168.1.68:6060 ;
}
}
注册登录
安装好,打开浏览器,默认访问http://ip:6060
来访问 taos-explorer 服务。如果还没有注册过,则首先进入注册界面。输入手机号获取验证码,输入正确的验证码后,即可注册成功。
登录时,请使用数据库用户名和密码登录。首次使用,默认的用户名为 root
,密码为 taosdata
。登录成功后即可进入数据浏览器
页面,您可以使用查看数据库、 创建数据库、创建超级表/子表等管理功能。
其他功能页面,如数据写入-数据源
等页面,为企业版特有功能,您可以点击查看和简单体验,并不能实际使用。