Rocketry
Dev tools
task scheduler library
SHOW HN2022
How HN took it
6 positive, 23 neutral or asking, 1 mixed, 2 critical, out of 32 comments about the project. Thread score +0.08.
Idea: 2 for, 1 againstDesign: 2 for, 0 againstExecution: 2 for, 0 againstDocs: 0 for, 1 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Clean, pythonic API and light configuration
From 2 comments
Anyone using this? It's not spelled out, but it's apparent you just run the python file containing the app definition and leave it running in the background? Looks very clean and…
bckr on HNThis looks brilliant. I like that it’s kept light as a concept - feels like you can just sprinkle it over your existing tasks without getting bogged down in complex…
aidos on HN
Native async and choice of execution mode (async, thread, process)
From 2 comments
Biggest win I see here is the native support for async methods. Celery, the default option for most, does not support it and there are only hacky ways to make async work. Kudos…
realyashnag on HNBeing able to configure simply the execution (async, process, thread) is pure gold, I am tempted to use it for this alone.
reedf1 on HN
Objections
Requires a Python process to keep running, less efficient than cron
From 2 comments
I don't really use schedulers for work and have never really worked with them. So this may sound trivial but do i have to keep a terminal open and the script running for this to…
chirau on HNPutting it mildly, this is nothing more than a sophisticated Python while loop. And it's not as performance friendly as Cron due to that Rocketry runs on Python. You need to be…
Miksus on HN
No built-in missed-task handling yet
From 1 comment
I wrote my own ideas of how it compares to APScheduler (and other alternatives) here:…
Miksus on HN
Requests
Multiple time zone support
From 1 comment
Does this support multiple time zones simultaneously? We have clients that are in different time zones, and (for example) they all want weekly summary emails every Monday morning…
smaccona on HN
Monitoring UI showing run history
From 1 comment
if it provides monitoring ui (e.g. success/failure status for last N runs), then i'd seriously give it a try.
qkhhly on HN
API accessible from other languages
From 1 comment
I like the idea, but this should be an api that can be accessed from any language.
dwils098 on HN
Questions
How task state persists across restarts
From 2 comments
Hey cool project, congrats! How does Rocketry saves execution state? Like, if it crashes and goes back up again, does it know which tasks were executed and which ones were not?
pid-1 on HNDoes it keep track of the status of each task? Imagine I run an app with three processes A, B, C. A runs perfectly, but B fails and halts the app. If I start the app again, is it…
alexmolas on HN
How it compares to APScheduler
From 1 comment
Interesting. How does this compare to APScheduler? How does it deal with concurrently scheduled tasks and the possibility of missed tasks?
jwmoz on HN
Which backends are supported
From 1 comment
What backends do you support? Do I need Redis or it can work with PostgreSQL? Cant find this info in readme.
pplonski86 on HN
Alternatives named
APScheduler
From 2 comments
Interesting. How does this compare to APScheduler? How does it deal with concurrently scheduled tasks and the possibility of missed tasks?
jwmoz on HNI quickly went through the docs but didn't see a reference to be able to dynamically schedule and unschedule tasks at runtime. I've used APScheduler in the past and it does…
nickjj on HN
Celery
From 2 comments
Biggest win I see here is the native support for async methods. Celery, the default option for most, does not support it and there are only hacky ways to make async work. Kudos…
realyashnag on HNCelery supports solar scheduling, though it's not obvious how you would do +/- some time from the solar event. You would probably need to extend their implementation, but I don't…
powvans on HN
Airflow
From 2 comments
Add some logging and connectors and you have an airflow replacement with the pipelining or am I missing something?
gigatexal on HNPutting it mildly, this is nothing more than a sophisticated Python while loop. And it's not as performance friendly as Cron due to that Rocketry runs on Python. You need to be…
Miksus on HN
Prefect
From 1 comment
How does it compare to prefect?
mpeg on HN
cron and systemd timers
From 1 comment
... or make CLI version of your tasks and let the system mangement daemon ("cron" or in my case systemd timers) handle it. For clarity make a subfolder called "tasks" or…
svennek on HN