shunping commented on PR #34748:
URL: https://github.com/apache/beam/pull/34748#issuecomment-2832064992

   > Does this help with #33623 in combination with the Singleton experiment?
   
   Yes, there are multiple changes recently to address #33623. 
   - #34616: fixed the cached mechanism so that we won't try to overwrite a 
running prism binary if the binary is in cache
   - #34715: supported a remote filesystem path in `--prism_location`. Note 
that in this case by design, cache will be disabled, so a proper md5sum 
checking was implemented so that we won't overwrite a running prism binary if 
the remote file has the same md5 as the cached one.
   - #34623: the singleton experiment. If the case of than one pipelines 
running before the interpreter (or the kernel in colab) terminates, we will 
only start one prism server and run all pipelines with it. This is useful for 
batch pipelines where pipelines will run and finish by themselves.
   - #34748: This PR. It fixes a bug when we run a streaming pipeline and click 
the stop button in colab. 
   
   


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