[jira] [Created] (FLINK-28114) The path of the Python client interpreter could not point to an archive file in distributed file system

["Dian Fu (Jira)" <ji...@apache.org>]

Dian Fu created FLINK-28114:
-------------------------------

             Summary: The path of the Python client interpreter could not point to an archive file in distributed file system
                 Key: FLINK-28114
                 URL: https://issues.apache.org/jira/browse/FLINK-28114
             Project: Flink
          Issue Type: Bug
          Components: API / Python
            Reporter: Dian Fu
             Fix For: 1.16.0, 1.15.1


See https://github.com/apache/flink/blob/master/flink-python/src/main/java/org/apache/flink/client/python/PythonEnvUtils.java#L178 for more details about this limitation.

Users could execute PyFlink jobs in YARN application mode as following:
{code}
./bin/flink run-application -t yarn-application \
      -Djobmanager.memory.process.size=1024m \
      -Dtaskmanager.memory.process.size=1024m \
      -Dyarn.application.name=<ApplicationName> \
      -Dyarn.ship-files=/path/to/shipfiles \
      -pyarch shipfiles/venv.zip \
      -pyclientexec venv.zip/venv/bin/python3 \
      -pyexec venv.zip/venv/bin/python3 \
      -py shipfiles/word_count.py
{code}

In the above case, venv.zip will be distributed to the TMs via Flink blob server. However, blob server doesn't support files with size exceeding of 2GB. See https://github.com/apache/flink/blob/ea52732dc48a4f1c5be0925890cd8aa1ea2a11ed/flink-runtime/src/main/java/org/apache/flink/runtime/blob/BlobServerConnection.java#L223 for more details. This is very serious problem as Python users usually tend to install a lot Python libraries inside the venv.zip and some Python libraries are very large.



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