Nebula Graph Console

This repository contains the Nebula Graph Console for Nebula Graph 2.0. Nebula Graph Console (Console for short) is a console for Nebula Graph. With Console, you can create a graph schema, import the demonstration nba dataset, and retrieve data.

Features

• Supports interactive and non-interactive mode.
• Supports viewing the history statements.
• Supports autocompletion.
• Supports multiple OS and architecture (We recommend Linux/AMD64).

How to Install

From Source Code

1. Build Nebula Graph Console

   To build Nebula Graph Console, make sure that you have installed Go.

   NOTE: Go version provided with apt on ubuntu is usually "outdated".

   Run the following command to examine if Go is installed on your machine.

   $ go version

   The version should be newer than 1.13.

   Use Git to clone the source code of Nebula Graph Console to your host.

   $ git clone https://github.com/vesoft-inc/nebula-console

   Run the following command to build Nebula Graph Console.

   $ cd nebula-console
   $ make

   You can find a binary named nebula-console.

2. Connect to Nebula Graph

   To connect to your Nebula Graph services, use the following command.

   $ ./nebula-console -addr <ip> -port <port> -u <username> -p <password>
       [-t 120] [-e "nGQL_statement" | -f filename.nGQL]

   Option	Description
   -h	Shows the help menu.
   -addr/-address	Sets the IP/HOST address of the graphd service.
   -P/-port	Sets the port number of the graphd service.
   -u/-user	Sets the username of your Nebula Graph account. See authentication.
   -p/-password	Sets the password of your Nebula Graph account.
   -t/-timeout	Sets an integer-type timeout threshold for the connection. The unit is second. The default value is 120.
   -e/-eval	Sets a string-type nGQL statement. The nGQL statement is executed once the connection succeeds. The connection stops after the result is returned.
   -f/-file	Sets the path of an nGQL file. The nGQL statements in the file are executed once the connection succeeds. You'll get the return messages and the connection stops then.
   -enable_ssl	Enable SSL when connecting to Nebula Graph
   ssl_root_ca_path	Sets the path of the certification authority file
   ssl_cert_path	Sets the path of the certificate file
   ssl_private_key_path	Sets the path of the private key file
   ssl_insecure_skip_verify	Controls whether a client verifies the server's certificate chain and host name

   E.g.,

   $./nebula-console -addr=192.168.10.111 -port 9669 -u root -p nebula
   2021/03/15 15:21:43 [INFO] connection pool is initialized successfully
   Welcome to Nebula Graph!

   Check options for ./nebula-console -h:

   • try ./nebula-console in interactive mode directly.

   • And try ./nebula-console -e 'show hosts' for the direct script mode.

   • And try ./nebula-console -f demo.nGQL for the script file mode.

From Binary

• Download the binaries on the Releases page

• Add execute permissions to the binary

• Connect to your Nebula Graph services:

$ ./<$YOUR_BINARY> -addr <ip> -port <port> -u <username> -p <password>
        [-t 120] [-e "nGQL_statement" | -f filename.nGQL]

Docker

Create a container:

$ docker run --rm -ti --network nebula-docker-compose_nebula-net --entrypoint=/bin/sh vesoft/nebula-console:nightly

To connect to your Nebula Graph services, run the follow command in the container:

docker> nebula-console -u <user> -p <password> --address=<graphd> --port=9669

Console side commands:

NOTE: The following commands are case insensitive.

• Export the result of the following statement to a csv file:

nebula> :csv a.csv

• Export the execution plan in graphviz format to a dot file when profiling a statement with format "dot" or "dot:struct":

nebula> :dot a.dot
nebula> PROFILE FORMAT="dot" GO FROM "Tony Parker" OVER like;

You can paste the content in the dot file to https://dreampuf.github.io/GraphvizOnline/ to show the execution plan.

• Load the demonstration nba dataset:

nebula> :play nba
Start loading dataset nba...

Load dataset succeeded!

• Repeat to execute a statement n times, the average execution time will also be printed:

nebula> :repeat 3

• Sleep for some seconds, it's just used in :play nba:

nebula> :sleep 3

• Exit the console

You can use :EXIT or :QUIT to disconnect from Nebula Graph. For convenience, nebula-console supports using these commands in lower case without the colon (":"), such as quit.

nebula> :QUIT

Bye root!

nebula> :EXIT

Bye root!

nebula> quit

Bye root!

nebula> exit

Bye root!

Keyboard Shortcuts

Key Binding	Description
Ctrl-A, Home	Move cursor to beginning of line
Ctrl-E, End	Move cursor to end of line
Ctrl-B, Left	Move cursor one character left
Ctrl-F, Right	Move cursor one character right
Ctrl-Left, Alt-B	Move cursor to previous word
Ctrl-Right, Alt-F	Move cursor to next word
Ctrl-D, Del	(if line is not empty) Delete character under cursor
Ctrl-D	(if line is empty) End of File --- quit from the console
Ctrl-C	Reset input (create new empty prompt)
Ctrl-L	Clear screen (line is unmodified)
Ctrl-T	Transpose previous character with current character
Ctrl-H, BackSpace	Delete character before cursor
Ctrl-W, Alt-BackSpace	Delete word leading up to cursor
Alt-D	Delete word following cursor
Ctrl-K	Delete from cursor to end of line
Ctrl-U	Delete from start of line to cursor
Ctrl-P, Up	Previous match from history
Ctrl-N, Down	Next match from history
Ctrl-R	Reverse Search history (Ctrl-S forward, Ctrl-G cancel)
Ctrl-Y	Paste from Yank buffer (Alt-Y to paste next yank instead)
Tab	Next completion
Shift-Tab	(after Tab) Previous completion

TODO

• CI/CD
• batch process to reduce memory consumption and speed up IO