Hi. I'm trying my first baby steps with prefect. I 'm running it in a ubuntu VMware following the protocol from https://docs.prefect.io/core/getting_started/installation.html#running-the-local-server-and-ui, and when accessing via chrome in VM, the UI functions flawlessly (and also the tutorial demos work fine). However, when accessing the same instance from my host with HTTP://myvmhostname:8080 the ui shows up, but reports the error "Connecting to Prefect Server at *null*". Is this intended or a known issue?

Hi friends! How to change the time format on the site from AM PM to 24 hours?

If I register the flows to the prefect.io and delete the code stored in my local computer. Would prefect still pick up the flows since they are registered?

A task failed ofinished in state <Failed: "Some reference tasks failed."> on Prefect UI, can I get more info about this error message?

Failed: "Failed to load and execute Flow's environment: StorageError('An error occurred while unpickling the flow:\n ModuleNotFoundError("No module named \'task\'")\nThis may be due to a missing Python module in your current environment

In the prefect.io UI, where can I change the password for my user?

Hello, is it possible to extract Prefect Cloud UI LOGS and show them in our dashboard for observability? What is the best practice here?

Hi all! I am attempting to use Prefect to standardize and simplify my team's ETL processes. One of the main problems is that it's never clear which script uses which files and which files are its outputs. I thought Prefect could help solve that with the DAG visualization, but I did not manage to get that to work: only input parameter names are visualized, and I don't see a way to visualize an output file. One hacky solution I came up with would be to have all paths (inputs and outputs) as Parameters with default values equal to the actual filepath. If I could then visualize the default parameter value in the DAG, I would have a working solution. However, I am not sure if I can visualize the default parameter values. Perhaps I can inherit from Task/Parameter and override its name to reflect that information? How could I do it, or is there a different solution altogether? Ideally, the graph would look something like

input_filepath

->

function

->

output_filepath

.

Hey all! Just a very quick question: I noticed that Prefect UI only shows the flow run history for the current month. Is there any way to view historic flow runs past to the current month? In case this is not possible, how can I inspect flow runs that are prior to that?

hi! flow concurrency is disabled on concurrency based plan?

Hi all! I am using tags for tasks and task concurrency. Is there a place where I can see the tags assigned to each running task? Thank you very much!

Anyone else noticing brutal load times of prefect cloud? It had been getting stuck perpetually loading, but if I close chrome and re-open it works immediately.

Hi 👋 ! First of all, thank you for such a great tool, I really enjoy using prefect 🙂 I'm using prefect-ui with hourly schedule to run an ETL flow. The agent is in a raspberrypi4 🙈 , and it sometimes get discconected from the network (Maybe I should stop using a Raspberry for this, I know). When this happen I see that all the missing hourly flows start executing when the agent is turned on (all at the same time). Is there any way to configure prefect to not start executing flows after the schedule time? Should I do it programatticaly? Or maybe just don't allow it to execute the same flow at the same time. Here is an example where many flows started running together:

How do I get around a Flow failing due to the "failed to detect heartbeat" on Prefect Cloud? This seems to be triggered by a long running task.

[Flow Schematic] Hi Guys! Some of my flows trigger other flows and I was wondering if there is any way I can see an aggregate schematic without having to join the tasks into a single flow and see the schematic of this unique flow.

Hi! Can’t remove agent, what the problem how to fix it?

Hi! I don't why I can't turn on/off the schedules in prefect cloud. When I click on the switch, nothing happened.

Hey all, I just noticed some quirky behavior on the Prefect Cloud UI when configuring Inputs on a Flow. I have some boolean Parameters set in the flow, and they appear to display their defaults correctly in the Cloud UI. However, when I try to switch from 

true

 -> 

false

 or vice versa, the UI appears to be converting them under the hood to strings (

"true"

 or 

"false"

 , as the case may be). This causes  conditional logic that checks for “truthiness” in my flow to behave incorrectly (i.e. conditionals expecting a 

False

 always evaluate as 

True

 since non-empty Python strings always evaluate as

True

). I verified this by toggling the values in Inputs UI and switching to the JSON configuration view of the data. I can get the Flow to run correctly by switching to the JSON configuration and correcting the issue, but figured that perhaps I’m missing something basic about the UI. Anyone have advice?

hi! is it possible to make default “rows per page” = 50 while watching flows list in cloud?

Has anyone else encountered issues with the Prefect Cloud UI simply refusing to load past the blue spinner? Seems to happen after my tab hangs from leaving the dashboard open too long (memory leak somewhere?). Closing it and opening a new tab results in an infinite spinner. Only way I’ve found to fix this is completely exit Chrome and restart the browser

heey everyone, does anybody know how to put more than one variable in a secret, maybe as json? thanks :)

how to create second team from same account? is it allowed to use different teams to cost optimization?

How to work with frozen flows? I see in agent log that flow finished but in cloud UI it is influently in running state. How to debug this problem?

My flow has several

DatabricksRunNow

tasks that run Databricks jobs. The tasks take parameters, which I provide via Prefect’s

Parameter

construct. These parameters that are fed into Databricks tasks always show up in the UI with these extra nodes for

List

and

Dict

. I don’t understand what they’re for, or why I need to see them in the UI, and they really clutter things up. Is this something I can eliminate by restructuring my flow somehow? Or is there some part of Prefect that needs to be changed to eliminate these noisy nodes from the schematic? Or are these

List

and

Dict

nodes actually useful for something?

Hi, I'm seeing som weird behavior in the UI this morning. No matter the selection it shows the full historiy of fails (note 24 hour selection):

if you're an admin for your prefect team, is there any way via the UI to edit your other team members' first + last name or do they have to do that themselves?

Hi at all, im trying to use the following function:

For convenience, you can use the snowflake.sqlalchemy.URL method to construct the connection string and connect to the database. The following example constructs the same connection string from the previous example:

from snowflake.sqlalchemy import URL
from sqlalchemy import create_engine

engine = create_engine(URL(
    account = 'myorganization-myaccount',
    user = 'testuser1',
    password = '0123456',
    database = 'testdb',
    schema = 'public',
    warehouse = 'testwh',
    role='myrole',
))

I want to create an engine with passing the input for URL with ** instead of putting every variable but I dont know how to write the input, it should be a str format that's what I tried, maybe you have an idea how input data should look like

###selecting order data
@task(log_stdout=True)
def create_engine(snowflake_salesforce):
    config = configparser.ConfigParser()
    engine=create_engine(URL(**config[snowflake_salesforce]))

with Flow('UWG-Mail') as flow:
    snowflake_credentials=PrefectSecret("Snowflake")
    connection=create_engine(snowflake_salesforce=snowflake_credentials)

but resulting in this error

[12:03 Uhr] Unexpected error: TypeError("unhashable type: 'dict'")
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/prefect/engine/runner.py", line 48, in inner
    new_state = method(self, state, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/prefect/engine/task_runner.py", line 863, in get_task_run_state
    value = prefect.utilities.executors.run_task_with_timeout(
  File "/usr/local/lib/python3.8/site-packages/prefect/utilities/executors.py", line 298, in run_task_with_timeout
    return task.run(*args, **kwargs)  # type: ignore
  File "<input>", line 36, in create_engine
  File "/usr/local/lib/python3.8/configparser.py", line 959, in __getitem__
    if key != self.default_section and not self.has_section(key):
  File "/usr/local/lib/python3.8/configparser.py", line 668, in has_section
    return section in self._sections
TypeError: unhashable type: 'dict'

Good morning! I*m having issues with starting my prefect server locally on my machine (mac) here's the error message upon prefect startup:

$prefect server start
Pulling postgres  ... done
Pulling hasura    ... done
Pulling graphql   ... done
Pulling apollo    ... done
Pulling scheduler ... done
Pulling ui        ... done
Creating network "prefect-server" with the default driver
Creating t_postgres_1 ... done
Creating t_hasura_1   ... done
Creating t_hasura_1   ... error

ERROR: for t_hasura_1  Cannot start service hasura: driver failed programming external connectivity on endpoint t_hasura_1 (d6f6316d7f501eb40399dccdacd6bce8c09e565a6057ec6c6d5433274be1f707): Bind for 0.0.0.0:3000 failed: port is already allocated

ERROR: for hasura  Cannot start service hasura: driver failed programming external connectivity on endpoint t_hasura_1 (d6f6316d7f501eb40399dccdacd6bce8c09e565a6057ec6c6d5433274be1f707): Bind for 0.0.0.0:3000 failed: port is already allocated
ERROR: Encountered errors while bringing up the project.

on docker here's the error message for that container t_hasura_1:

t_hasura_1 exited with code 128

After starting prefect-server, I get this error in the logs.

apollo_1     | 2021-07-02T15:47:56.760Z {"message":"Cannot query field \"api\" on type \"Query\".","locations":[{"line":2,"column":3}],"extensions":{"code":"GRAPHQL_VALIDATION_FAILED"}}

When I access the gui, website partially loads

Hi everyone — this may be a silly question, but on the UI there’s a page called “notifications” but I couldn’t find any documentation on how to “create” a notification or how it works.. can anyone shed some light to this please?