Ning Kang created BEAM-10514:
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Summary: Make sure Interactive Beam cache file path length does
not exceed OS limits
Key: BEAM-10514
URL: https://issues.apache.org/jira/browse/BEAM-10514
Project: Beam
Issue Type: Improvement
Components: runner-py-interactive
Reporter: Ning Kang
The path length limit in Linux is 4096.
The limit in windows API is 260.
If long file name support is enabled in windows, the limit will be 32767.
An example path that doesn't work on windows is
c:\windows\temp\interactive-temp-xqj_fv471021776\cache-20-07-16-08_28_57\full\beam-temp-anonymous_pcollection_433934912-433934912-433938272-471021776-65e3a91ec73e11ea91b7e69191fc0bf0\284e0d91-ca8a-463c-a894-bde70cdec599.anonymous_pcollection_433934912-433934912-433938272-471021776
(length: 281).
Consider using obfuscation when mapping in-memory PCollections into files.
If long file name is needed, consider storing a reverse indexed mapping in
memory.
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