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# ask-community
h

Heiner Hippke

08/17/2023, 1:51 PM
Hi, I am trying to limit the concurrency of runs with a specific tag, which does not seem to work properly. This is my config:
Copy code
run_coordinator:
  module: dagster._core.run_coordinator
  class: QueuedRunCoordinator
  config:
    max_concurrent_runs: 10
    tag_concurrency_limits:
    - key: database
      limit: 3
      value: exasol
I have built a job to test this limit:
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@job(
    tags=EXASOL_TAG,
)
def test_job_concurrency_inner():
    get_sleep_op(0)()


@job
def test_job_level_concurrency():
    @op(
        name=f"test_job_level_concurrency_{1}"
    )
    def start_part1(context):
        execute_job(
            reconstructable(test_job_concurrency_inner),
            instance=context.instance,
            tags=EXASOL_TAG,
        )

    @op(
        name=f"test_job_level_concurrency_{2}"
    )
    def start_part2(context):
        execute_job(
            reconstructable(test_job_concurrency_inner),
            instance=context.instance,
            tags=EXASOL_TAG,
        )

    @op(
        name=f"test_job_level_concurrency_{3}"
    )
    def start_part3(context):
        execute_job(
            reconstructable(test_job_concurrency_inner),
            instance=context.instance,
            tags=EXASOL_TAG,
        )

    @op(
        name=f"test_job_level_concurrency_{4}"
    )
    def start_part4(context):
        execute_job(
            reconstructable(test_job_concurrency_inner),
            instance=context.instance,
            tags=EXASOL_TAG,
        )

    @op(
        name=f"test_job_level_concurrency_{5}"
    )
    def start_part5(context):
        execute_job(
            reconstructable(test_job_concurrency_inner),
            instance=context.instance,
            tags=EXASOL_TAG,
        )

    start_part1()
    start_part2()
    start_part3()
    start_part4()
    start_part5()
The sleep op sleeps for 60 seconds by default. I would expect that at most 3 of the 5 parts start concurrently. But sadly all 5 are running at the same time (please see attached screenshot). I have also checked, that the tags of the runs are correct (see second screenshot). Maybe the limits do not apply when starting jobs by execute_job? Thank you very much in advance Heiner
🤖 1
a

alex

08/17/2023, 4:08 PM
execute_job
directly and immediately executes the job, bypassing the queue. You will need to
submit
the run instead if you want it to go through the queue and have the limits respected
h

Heiner Hippke

08/25/2023, 11:27 AM
@alex thank you very much! this seems to also apply for materialize right? how can i submit an asset materialization job via the graphql client? i tried to use the job name, that the gui creates when materializing an asset manually, which does not work. do i have to wrap my materialize call in a job that i explicitly name somehow to sumbmit it via graphql? i would prefer not to...
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