Github user srowen commented on the issue:
https://github.com/apache/spark/pull/18499
Surely math.max is correct? or else the value is always 1.
On Tue, Jul 4, 2017 at 3:28 PM IngoSchuster <[email protected]>
wrote:
> Can we pull that also into 2.1.1? The original code in JettyUtils to limit
> the number of selector threads is actually wrong.
>
> Instead of
> val numSelectors = math.max(1, math.min(8,
> Runtime.getRuntime().availableProcessors() / 2))
> it should have been
> val numSelectors = math.min(1, math.max(8,
> Runtime.getRuntime().availableProcessors() / 2))
>
> With this PR, a fix for the bug above is no longer needed.
>
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