[SPARK-33132][WEBUI] Make formatBytes return 0.0 B for negative input instead of NaN
#30030
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formatBytes return 0.0 B for negative input instead of NaN
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+1, LGTM. Thank you for your first contribution, @akiyamaneko .
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What changes were proposed in this pull request?
when bytesRead metric was negative,
formatBytesinui.jsshould just return0.0 Bto avoidNaN Undefinedresult.Why are the changes needed?
Strengthen the parameter validataion to improve metric display on Summary Metrics of Spark Stage UI.
Does this PR introduce any user-facing change?
No
How was this patch tested?
It's a small change, just manual test.