Questions & Help>Questions

Making sure the application is running

#mix#mix-release
AwesomeHunter

AwesomeHunter

Making sure the application is running

Hi!
I want to start the release using bin/my_app start and then call functions using rpc requests. How do I check if the application is running? Does running the start command more than once start the application multiple times, or only the first time? If multiple times, is the appropriate solution to send an rpc request and see if it succeeded?

3 comments
#mix-release
8 133 3

Marked As Solved

dimitarvp

dimitarvp

Make a small endpoint that basically tries to read something from the DB and if it succeeds the endpoint returns HTTP 200 OK. Use that to make sure that the application is running.

Basically roll your own small liveness / readiness k8s probe of sorts.

3
Post #3

Also Liked

LostKobrakai

LostKobrakai

You could also start the application with a systems level init system like systemd and ask that if the service is running.

4
Post #4
SirWerto

SirWerto

Hi!

If you have a process with a certain name, you can info to it or use Application.ensure_started/2 but the latter will start the application if it wasn’t already running.

Hope it helps!

1
Post #2

Where Next?

View thread on forum (has 3 responses!)
mix
mix-release
Home Questions & Help>Questions
#mix#mix-release
8 134 3
Last post

Popular in Questions Top

LegitStack
Questions & Help>Questions

Best way to get Elixir to work with python?
I’m hoping you guys can give me some general advice and perhaps code examples if you’re feeling up to it. I’m very interested in Elixir,...
#python#interoperability
35 13513 9
New
tduccuong
Questions & Help>Questions

Desktop GUI app with Elixir?
Hi, is there any work on GUI with Elixir, that is similar to Electron/Javascript? My idea is to bundle Phoenix and BEAM into a single se...
/phoenix#gui
34 13194 12
New
Kagamiiiii
Questions & Help>Questions

Get ascii value of a character
Student & New to elixir. Nice language. I want to convert a english character, e.g. “a”, which is stored in a variable, to it’s asci...
#learning-elixir
22 13106 4
New
polypush135
Questions & Help>Questions

Proper use of Task.async?
As many of you may have realized by now (sorry for all the posts here) I’ve been working on a db problem where I’m trying to aggregate a ...
#task
26 15568 8
New
mcarvalho
Questions & Help>Questions

System.get_env vs. Application.get_env
What is the difference between System.get_env and Application.get_env? For example, what are best practices to use one versus another.
#environment
13 17021 6
New
Fl4m3Ph03n1x
Questions & Help>Questions

How to test a GenServer?
Background Let’s assume I have a typical GenServer that receives messages as requests, does some operation in a DB and returns responses....
#testing#actor-model
77 13824 19
New
johnnyicon
Questions & Help>Questions

How do I use the Postgres JSONB / Postgrex JSON extension?
Hi all, I've just started learning Elixir and Phoenix Framework, so please pardon my n00bness at this stage. I'm trying to use Postg...
#ecto
22 17588 9
New
Codball
Questions & Help>Questions

Mix format on save VSCode
Mix format works fine if run from the cmd. I’ve followed this to facilitate the implementation into VSC which involves downloading an ext...
#mix
29 13345 4
New
wernerlaude
Questions & Help>Questions

How to get all entries by user_id
In AR this is so simple @articles = current_user.articles How to do in Ecto? def index(conn, _params) do current_user = conn.assig...
/phoenix#ecto#troubleshooting
4 14281 14
New
joeerl
Questions & Help>Questions

Upgrading Elixir - how to check versions, delete, and upgrade?
Hello again - after a longish gap I’ve decided I really must dig into Elixir and see what’s been happening here - so I have a few questio...
#upgrade
63 40940 13
New

Other popular topics Top

aalberti333
Questions & Help>Questions

Enum.map over list of key/value pairs with a map as the value
As the title describes, I’m trying to run Enum.map() over a list of key/value pairs, where the value is a map. My data looks like this: ...
#enummap
7 19677 6
New
sergio_101
Questions & Help>Questions

Pattern matching against a string
I am VERY much an elixir newbie. I have taken one elixir course and one phoenix course on Udemy. During that course, I saw the instructor...
#pattern-matching
27 26685 14
New
fireproofsocks
Questions & Help>Questions

Defining Ecto Schemas (PostGres) to use NOT NULL in column definitions
I’m working on defining a simple Ecto schema for a table (in PostGres), but I don’t see where I can define a column as NOT NULL. Conside...
#ecto
29 14078 4
New
hariharasudhan94
Questions & Help>Questions

What is the best IDE for elixir?
I would like to know what is the best IDE for elixir development?
#code-editors
33 49503 23
New
ashish173
Questions & Help>Questions

Difference in between :utc_datetime and :naive_datetime in Ecto
I am using Ecto timestamps with postgres, I can see the timestamps() use the :naive_dateime but for my use case I wanted to store the ti...
#ecto#timestamps
79 27907 15
New
stefanluptak
Questions & Help>Questions

Using VSCode on multiple monitors
Hello everybody, usually, I use a 29" ultra-wide monitor for VSCode which can easily accomodate explorer (files panel) + file with code ...
#vscode#vscode-elixir
7 17615 6
New
chrisalley
Questions & Help>Questions

How to describe many contexts in ExUnit without a hierarchy
ExUnit now has describe blocks which is a welcome addition coming from RSpec. In the docs, it states that nested hierarchies of describe ...
#testing#exunit
66 16773 4
New
lucidguppy
Questions & Help>Questions

How do I read a file and enumerate its lines
I have a super simple question about elixir - how would I take a file like this foo bar baz and output a new file that enumerates th...
#how-to-question
20 15454 3
New
TunkShif
Chat & Discussions>Wikis

Neovim - Elixir Setup Configuration from Scratch Guide
This post is an instruction guide to help you setup your Neovim for Elixir development from scratch. It includes general information on h...
#wiki#code-editors#neovim#language-server-protocol
273 38985 115
New
magnetic
Learning Resources>Guides/Tuts/Tips/Info

Configuring VSCode to use with Elixir and Phoenix Templates
Hey :wave:t3: Elixir community, I’ve been learning Elixir, and working on some side projects. My editor of choice is VSCode, and althoug...
#phoenix_html#vs-code#vscode-elixir#elixir-ls
43 16832 15
New
Back to top

Questions & Help>Questions

Questions Questions ❯

Latest on Elixir Forum

Elixir Forum ❯

Sponsor Spotlight

EEF

Supporting innovation across the BEAM ecosystem.

Our Sponsors

Dashbit

Build Elixir applications with speed and confidence.

EEF

Supporting innovation across the BEAM ecosystem.

Coders51

We build reliable cloud platforms for business-critical systems.

AppSignal

Catch errors, track performance, monitor hosts and more.

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Manning

Develop your skills with books, videos, and courses.

Potions

The deployment platform built for Elixir: PaaS ease, VPS control.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Sub Categories:

Forums

Our Sponsors

Dashbit

Build Elixir applications with speed and confidence.

EEF

Supporting innovation across the BEAM ecosystem.

Coders51

We build reliable cloud platforms for business-critical systems.

AppSignal

Catch errors, track performance, monitor hosts and more.

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Manning

Develop your skills with books, videos, and courses.

Potions

The deployment platform built for Elixir: PaaS ease, VPS control.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement