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https://issues.apache.org/jira/browse/BEAM-12792?focusedWorklogId=732203&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-732203
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ASF GitHub Bot logged work on BEAM-12792:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 24/Feb/22 10:07
Start Date: 24/Feb/22 10:07
Worklog Time Spent: 10m
Work Description: phoerious commented on a change in pull request #16658:
URL: https://github.com/apache/beam/pull/16658#discussion_r813728029
##########
File path: sdks/python/apache_beam/runners/worker/worker_pool_main.py
##########
@@ -51,6 +51,28 @@
_LOGGER = logging.getLogger(__name__)
+def kill_process_gracefully(proc, timeout=10):
+ """
+ Kill a worker process gracefully by sending a SIGTERM and waiting for
+ it to finish. A SIGKILL will be sent if the process has not finished
+ after ``timeout`` seconds.
+ """
+ def _kill():
+ proc.terminate()
+ t = time.time()
+ while time.time() < t + timeout:
+ time.sleep(0.01)
+ if proc.poll() is not None:
Review comment:
I changed it to wait with timeout, but again, we can reduce it even more
if we can guarantee that the child process will not hang indefinitely.
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Issue Time Tracking
-------------------
Worklog Id: (was: 732203)
Time Spent: 11h 10m (was: 11h)
> Multiple jobs running on Flink session cluster reuse the persistent Python
> environment.
> ---------------------------------------------------------------------------------------
>
> Key: BEAM-12792
> URL: https://issues.apache.org/jira/browse/BEAM-12792
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-harness
> Affects Versions: 2.27.0, 2.28.0, 2.29.0, 2.30.0, 2.31.0
> Environment: Kubernetes 1.20 on Ubuntu 18.04.
> Reporter: Jens Wiren
> Priority: P1
> Labels: FlinkRunner, beam
> Time Spent: 11h 10m
> Remaining Estimate: 0h
>
> I'm running TFX pipelines on a Flink cluster using Beam in k8s. However,
> extra python packages passed to the Flink runner (or rather beam worker
> side-car) are only installed once per deployment cycle. Example:
> # Flink is deployed and is up and running
> # A TFX pipeline starts, submits a job to Flink along with a python whl of
> custom code and beam ops.
> # The beam worker installs the package and the pipeline finishes succesfully.
> # A new TFX pipeline is build where a new beam fn is introduced, the pipline
> is started and the new whl is submitted as in step 2).
> # This time, the new package is not being installed in the beam worker
> causing the job to fail due to a reference which does not exist in the beam
> worker, since it didn't install the new package.
>
> I started using Flink from beam version 2.27 and it has been an issue all the
> time.
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