[MINOR][CONNECT][DOCS] Document parallelism=1 in Spark Connect testing #38992
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+1, LGTM. Merged to master.
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### What changes were proposed in this pull request? This PR proposes to document the correct way of running Spark Connect tests with `--parallelism 1` option in `./python/run-tests` script. ### Why are the changes needed? Without this option, the tests cannot run due to the port conflicts. It fails with port already in use. ### Does this PR introduce _any_ user-facing change? No, dev-only. ### How was this patch tested? Manually ran the commands. Closes apache#38992 from HyukjinKwon/minor-docs-test. Authored-by: Hyukjin Kwon <[email protected]> Signed-off-by: Dongjoon Hyun <[email protected]>
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What changes were proposed in this pull request?
This PR proposes to document the correct way of running Spark Connect tests with
--parallelism 1option in./python/run-testsscript.Why are the changes needed?
Without this option, the tests cannot run due to the port conflicts. It fails with port already in use.
Does this PR introduce any user-facing change?
No, dev-only.
How was this patch tested?
Manually ran the commands.