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asynq/tools/asynq
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cmd Fix history command 2020-07-28 22:45:57 -07:00
main.go Rename CLI to asynq 2020-04-19 08:51:17 -07:00
README.md Update docs for pause feature 2020-06-08 06:22:14 -07:00

Asynq CLI

Asynq CLI is a command line tool to monitor the tasks managed by asynq package.

Table of Contents

Installation

In order to use the tool, compile it using the following command:

go get github.com/hibiken/asynq/tools/asynq

This will create the asynq executable under your $GOPATH/bin directory.

Quickstart

The tool has a few commands to inspect the state of tasks and queues.

Run asynq help to see all the available commands.

Asynq CLI needs to connect to a redis-server to inspect the state of queues and tasks. Use flags to specify the options to connect to the redis-server used by your application.

By default, CLI will try to connect to a redis server running at localhost:6379.

Stats

Stats command gives the overview of the current state of tasks and queues. You can run it in conjunction with watch command to repeatedly run stats.

Example:

watch -n 3 asynq stats

This will run asynq stats command every 3 seconds.

Gif

History

History command shows the number of processed and failed tasks from the last x days.

By default, it shows the stats from the last 10 days. Use --days to specify the number of days.

Example:

asynq history --days=30

Gif

Servers

Servers command shows the list of running worker servers pulling tasks from the given redis instance.

Example:

asynq servers

List

List command shows all tasks in the specified state in a table format

Example:

asynq ls retry
asynq ls scheduled
asynq ls dead
asynq ls enqueued:default
asynq ls inprogress

Enqueue

There are two commands to enqueue tasks.

Command enq takes a task ID and moves the task to Enqueued state. You can obtain the task ID by running ls command.

Example:

asynq enq d:1575732274:bnogo8gt6toe23vhef0g

Command enqall moves all tasks to Enqueued state from the specified state.

Example:

asynq enqall retry

Running the above command will move all Retry tasks to Enqueued state.

Delete

There are two commands for task deletion.

Command del takes a task ID and deletes the task. You can obtain the task ID by running ls command.

Example:

asynq del r:1575732274:bnogo8gt6toe23vhef0g

Command delall deletes all tasks which are in the specified state.

Example:

asynq delall retry

Running the above command will delete all Retry tasks.

Kill

There are two commands to kill (i.e. move to dead state) tasks.

Command kill takes a task ID and kills the task. You can obtain the task ID by running ls command.

Example:

asynq kill r:1575732274:bnogo8gt6toe23vhef0g

Command killall kills all tasks which are in the specified state.

Example:

asynq killall retry

Running the above command will move all Retry tasks to Dead state.

Cancel

Command cancel takes a task ID and sends a cancelation signal to the goroutine processing the specified task.
You can obtain the task ID by running ls command.

The task should be in "in-progress" state. Handler implementation needs to be context aware in order to actually stop processing.

Example:

asynq cancel bnogo8gt6toe23vhef0g

Pause

Command pause pauses the spcified queue. Tasks in paused queues are not processed by servers. To resume processing from the queue, use unpause command. To see which queues are currently paused, use stats command.

Example:

asynq pause email
asynq unpause email

Config File

You can use a config file to set default values for the flags. This is useful, for example when you have to connect to a remote redis server.

By default, asynq will try to read config file located in $HOME/.asynq.(yaml|json). You can specify the file location via --config flag.

Config file example:

uri: 127.0.0.1:6379
db: 2
password: mypassword

This will set the default values for --uri, --db, and --password flags.