Command Line Interface

The command line interface (CLI) can be used to interact with the local Joule service or any Joule node on the network. Arguments can often be supplied in both short and long forms, and many are optional. The documentation uses the following conventions:

An argument that takes an additional parameter is denoted -f FILE.

The syntax -f FILE, --file FILE indicates that either the short form (-f) or long form (--file) can be used interchangeably.

Square brackets ([]) denote optional arguments.

Pipes (A|B) indicate that either A or B can be specified, but not both.

Curly braces ({}) indicate a list of mutually-exclusive argument choices.

Usage: joule ~ [--help] [--node|-n] [--version] {subcommand} ...
Arguments: --node Node: Specify a different node than the default (see ''node list'' for available nodes) --help: Print a help message with usage information on all supported command-line arguments. This can also be specified after the subcommand in which case the usage and arguments of the subcommand are shown instead --version: print the joule CLI version subcommand: The subcommand followed by its arguments. This is required

node

info

show information about the selected node

Usage: joule node info ~ [--help]
Arguments: none
Example: $> joule node info --connecting to [XXXX]-- Server Version: 0.9.XX Database Location: /var/lib/postgresql/12/main Database Size: 2GiB Space Available: 20GiB

list

add

delete

default

module

list

list all active modules and pipe connections.

Usage: joule module list ~ [--help]
Arguments: none
Example: $> joule module list ╒════════════╤══════════╤═════════════════╤═════════╤═════════════╕ │ Name │ Inputs │ Outputs │ CPU % │ Mem (KiB) │ ╞════════════╪══════════╪═════════════════╪═════════╪═════════════╡ │ Visualizer │ │ /random/output2 │ 0 │ 59880 │ ├────────────┼──────────┼─────────────────┼─────────┼─────────────┤ │ Producer1 │ │ /random/10hertz │ 0 │ 62644 │ ├────────────┼──────────┼─────────────────┼─────────┼─────────────┤ │ Producer2 │ │ /demo/stream1 │ 0 │ 8028 │ ╘════════════╧══════════╧═════════════════╧═════════╧═════════════╛

info

information about the specified module

Usage: joule module info ~ [--help] NAME
Arguments: NAME: module name (from configuration file)
Example: $> joule module info Visualizer Name: Visualizer Description: visualizes data Inputs: --none-- Outputs: output: /random/output2

logs

print module logs

Usage: joule module logs ~ [--help] NAME
Arguments: NAME: module name (from configuration file)
Example: $> joule module logs Visualizer [2018-09-11T20:45:58.799616]: ---starting module--- [2018-09-11T20:45:59.736744]: starting web server at [wattsworth.joule.0]

stream

list

show the contents of the stream database

Usage: joule stream list ~ [-l] [-s] [--help]
Arguments: -l, --layout: include stream layout -s, --status: include stream status
Example: $> joule stream list ├── demo │ ├── f1 │ │ └── stream0(1) │ ├── copied2(6) │ ├── copy one(5) │ └── stream1(4) └── random ├── 10hertz(3) ├── output(2) └── output2(7)

info

Display information about the specified stream

Usage: joule stream info ~ [--help] PATH
Arguments: PATH: stream path
Example: $> joule stream info /random/10hertz Name: 10hertz Description: — Datatype: float32 Keep: all data Decimate: yes Status: ● [active] Start: 2018-07-25 20:35:49.427396 End: 2018-09-11 22:11:39.839133 Rows: 216040 ╒════════╤═════════╤════════════╤═══════════╕ │ Name │ Units │ Display │ Min,Max │ ╞════════╪═════════╪════════════╪═══════════╡ │ x │ — │ continuous │ auto │ ├────────┼─────────┼────────────┼───────────┤ │ y │ — │ continuous │ auto │ ├────────┼─────────┼────────────┼───────────┤ │ z │ — │ continuous │ auto │ ╘════════╧═════════╧════════════╧═══════════╛

destroy

Completely remove the stream at the specified path

Usage: joule stream destroy ~ PATH
Arguments: PATH: path of stream to destroy

move

Move a stream into a new folder.

Usage: joule stream move ~ PATH DESTINATION
Arguments: PATH: path of stream to move DESTINATION: path of destination folder
Notes: The folder will be created if it does not exist. A stream cannot be moved into a folder which has a stream with the same name

folder

move

move a folder into a new parent folder.

Usage: joule folder move ~ PATH DESTINATION
Arguments: PATH: path of folder to move DESTINATION: path of new parent folder
Note:: The parent folder will be created if it does not exist. A folder cannot be moved into a parent folder which has a folder with the same name

remove

remove a folder

Usage: joule folder remove ~ [-r] PATH
Arguments: -r, --recursive: remove subfolders PATH: path of folder to remove
Notes: If the folder has subfolders, add -r to recursively remove them. The folder and its subfolders may not have any streams, if they do more or remove them first.

data

copy

copy data between streams

Usage: joule data copy ~ [-s] [-e] [-n] [-d] [--source-url] SOURCE DESTINATION
Arguments: -s, --start: timestamp or descriptive string, if omitted start copying at the beginning of SOURCE -e, --end: timestamp or descriptive string, if omitted copy to the end of SOURCE -n, --new: copy starts at the last timestamp of the destination -d: destination node name or Nilmdb URL if different than source --source-url: copy from a Nilmdb URL (specify a Joule node with top level -n flag)

read

extract data from a stream

Usage

joule data read ~ [-s] [-e] [-r|-d] [-b] [-m] [-i] [-f] PATH

Arguments

-s, --start: timestamp or descriptive string, if omitted start reading at the beginning -e, --end: timestamp or descriptive string, if omitted read to the end -r: limit the response to a maximum number of rows (this will produce a decimated result) -d: specify a particular decimation level, may not be used with -r, default is 1 -b: include min/max limits for each row of decimated data -m: include [# interval break] tags in the output to indicate broken data intervals -f, --file: filename to write data to rather than stdout (written in hdf5 format) -i: indices of elements to read, separate multiple elements with , The first element is index 0

PATH: path of stream to read

Example

# write the last hour of data from /demo/random into data.txt $> joule data read /demo/random --start="1 hour ago" > data.txt $> head data.txt 1538744825370107 0.383491 0.434531 1538744825470107 0.317079 0.054972 1538744825570107 0.572721 0.875278 1538744825670107 0.350911 0.680056 1538744825770107 0.839264 0.189361 1538744825870107 0.259714 0.394411 1538744825970107 0.027148 0.963998 1538744826070107 0.828187 0.704508 1538744826170107 0.738999 0.082351 1538744826270107 0.828530 0.916019

remove

remove data from a stream

Usage: joule data remove ~ [--from] [--to] STREAM
Arguments: -s, --start: timestamp or descriptive string, if omitted start reading at the beginning of SOURCE -e, --end: timestamp or descriptive string, if omitted read to the end of SOURCE

consolidate

merge data intervals with short gaps

Usage: joule data consolidate ~ [-s] [-e] [--max-gap] STREAM
Arguments: -s, --start: timestamp or descriptive string, if omitted start at the beginning of STREAM -e, --end: timestamp or descriptive string, if omitted run to the end of STREAM -m, --max-gap: remove intervals shorter than this (in us). Default is 2 seconds

admin

The following commands require super user (sudo) permission and only operate on the local node. They should only be run when the joule service (jouled) is stopped.

initialize

prepare a system to run the joule service (jouled)

Usage: joule admin initialize ~ --dsn DSN_STRING
Arguments: --dsn: connection string to PostgreSQL database

authorize

authorize the current user access to the local node

Usage: joule admin authorize ~ [-c]
Arguments: -c, --config: configuration file default is /etc/joule/main.conf

erase

remove all data from the node

Usage: joule admin erase ~ [-c] [-l] [--yes]
Arguments: -c, --config: configuration file default is /etc/joule/main.conf -l, --links: remove master/follower relationships, default removes only data --yes: force, do not prompt for confirmation

backup

archive all node data into a single file

Usage: joule admin backup ~ [-c] [-f]
Arguments: -c, --config: configuration file default is /etc/joule/main.conf -f, --file: backup file name default is joule_backup.tar

ingest

bulk copy data into the local node

Usage: joule admin ingest ~ [-c] [-f] [-d|-f] [-m] [-y] [-s] [-e]
Arguments: -c, --config: configuration file default is /etc/joule/main.conf -f, --file: copy data from backup file, default is joule_backup.tar -d, --dsn: live copy data from another node, may not be specified with -f -m, --map: map file relating source streams to destination streams -y, --yes: force, do not prompt for confirmation -s, --start: timestamp or descriptive string, if omitted copy from start of source -e, --end: timestamp or descriptive string, if omitted copy to the end of source