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Hi, sorry if this is a naive question—when running...
# announcementsb
Basil V
03/06/2020, 10:13 PMHi, sorry if this is a naive question—when running
dagitdagit Copy code
dagster.check.CheckError: Failure condition: Could not find mode default in pipeline <PIPELINE_NAME>execute_pipelineRunConfiga
abhi
03/06/2020, 10:17 PMHi Basil. Can you show me your pipeline decorator code and how you are initializing dagit? Is this error popping up when you run dagit, or when you try to execute a pipeline in the playground?
b
Basil V
03/06/2020, 10:17 PMIts popping up when I run
dagitBasil V
03/06/2020, 10:18 PM Copy code
@pipeline(
mode_defs=[
ModeDefinition(
name='development',
resource_defs={
'postgres_db': postgres.postgres_resource
},
description='Mode to be used in development.',
),
],
)Basil V
03/06/2020, 10:22 PMI cleared my storage & history folders, and now it seems when I run
dagitBasil V
03/06/2020, 10:23 PMStill curious if mode can be set via config though. Thanks!
m
max
03/06/2020, 10:24 PMif you're running in dagit, you need to use the UI to select mode
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b
Basil V
03/06/2020, 10:25 PMOk, good to know. Thanks!
👍 1
a
abhi
03/06/2020, 10:27 PMThe reasoning for this is that the playground is meant to be a part of your dev process which means you really want to use the UI to toggle between modes. However, when you start using schedules to run pipelines in production or are using the python API, you need to configure and express the mode you want to execute your pipelines in which is provided by the execute_pipeline/execute_pipeline_with_presets functions
m
max
03/06/2020, 10:28 PMyep, but if it feels natural to specify mode in config, it's possible that we are organizing things wrong
b
Basil V
03/06/2020, 10:28 PMOk awesome thanks. The UI is actually giving me another error, not sure if it is related:
Copy code
Missing required field "resources" at document config root. Available Fields: "['exection', 'loggers', 'resources', 'solids', 'storage'].Basil V
03/06/2020, 10:28 PMWhat is the "document config root"
Basil V
03/06/2020, 10:29 PMAlso FYI my updated pipeline decorator:
Basil V
03/06/2020, 10:29 PM Copy code
@pipeline(
mode_defs=[
ModeDefinition(
name='development',
resource_defs={
'postgres_db': postgres.postgres_resource
},
description='Mode to be used in development.',
),
],
preset_defs=[
PresetDefinition.from_files(
name='development',
mode='development',
environment_files=[
file_relative_path(__file__, '../../utils/environments/development.yaml'),
],
),
],
)Basil V
03/06/2020, 10:29 PMAnd my
development.yaml Copy code
resources:
postgres:
config:
username: test
password: test
hostname: localhost
db_name: testBasil V
03/06/2020, 10:30 PMDoes the error mean that my yaml file is not getting loaded properly via in the presets?
Basil V
03/06/2020, 10:30 PM(sorry to chase my question with another!)
a
abhi
03/06/2020, 10:30 PMyeah you need to select your presets in the UI
abhi
03/06/2020, 10:31 PMthat should be on the right if you see the + box.
b
Basil V
03/06/2020, 10:33 PMAh ok—still getting used to developing with the UI I guess. Got that to work. Many thanks!!
a
abhi
03/06/2020, 10:34 PMglad to help! This is useful feedback for us as well so please don't hesitate to reach out if you ever have any questions with the UI
b
Basil V
03/06/2020, 10:34 PMWill do, thanks again
s
sashank
03/06/2020, 10:37 PMYou have discovered a real error with deleting a mode definition after creating a run with the mode. Tracking here: https://github.com/dagster-io/dagster/issues/2249
sashank
03/06/2020, 10:38 PMThank you for catching and reporting!
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