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https://issues.apache.org/jira/browse/BEAM-11959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17302294#comment-17302294
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Jens Wiren commented on BEAM-11959:
-----------------------------------
[~kenn] I have also tested with apache/beam_python3.7_sdk:2.27.0 and got the
same result. Essentially this is still the boot step in the SDK harness which
is run by a go script. I wanted to try to remove the extra package installation
step to see if the execution would then continue but I didn't manage to run the
goBuild target in the dev contained due to a go get error. It would be very
helpful just to be able to add the verbose flag to pip to see if it hangs
somewhere.
> Python Beam SDK Harness hangs when install pip packages
> -------------------------------------------------------
>
> Key: BEAM-11959
> URL: https://issues.apache.org/jira/browse/BEAM-11959
> Project: Beam
> Issue Type: Bug
> Components: runner-flink, sdk-py-harness
> Affects Versions: 2.27.0, 2.28.0
> Environment: Kubernetes v1.19.6
> Reporter: Jens Wiren
> Priority: P1
> Attachments: jobmanager-configmap.yaml, jobmanager-deploy.yaml,
> jobmanager-svc.yaml, taskmanager-deploy.yaml
>
>
> When running a Beam pipeline using Flink as backend, the python sdk harness
> hangs when trying to install pip packages. Tested using Flink 1.10.3.
> Images used:
> apache/beam_python3.7_sdk:2.28.0
> apache/flink:1.10.3
> Beam args used are:
> "--runner=FlinkRunner",
> "--flink_version=1.10",
> "--flink_master=http://flink-jobmanager.default:8081";,
> f"--artifacts_dir=/mnt/flink",
> "--environment_type=EXTERNAL",
> "--environment_config=localhost:50000",
>
> Specifically this was tested by running a TFX pipeline which gets submitted
> and registered as it should, but the SDK Harness hangs when installing:
> 2021/03/10 12:16:20 Initializing python harness: /opt/apache/beam/boot
> --id=1-1 --logging_endpoint=localhost:39795
> --artifact_endpoint=localhost:34095 --provision_endpoint=localhost:42999
> --control_endpoint=localhost:38129
> 2021/03/10 12:16:20 Found artifact: tfx_ephemeral-0.27.0.tar.gz
> 2021/03/10 12:16:20 Found artifact: extra_packages.txt
> 2021/03/10 12:16:20 Installing setup packages ...
> 2021/03/10 12:16:20 Installing extra package: tfx_ephemeral-0.27.0.tar.gz
> and nothing else is shown irregardless how long it is left. I can manually
> install the TFX package by exec into the container in < 3 min.
> The Flink task-manager then waits idling and periodically logs:
> 2021-03-10 11:29:26,287 INFO
> org.apache.beam.runners.fnexecution.environment.ExternalEnvironmentFactory -
> Still waiting for startup of environment from localhost:50000 for worker id
> 1-1
> Helm charts attached below.
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