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calling: update TurnCallRouter to shuffle instance IPs to prevent allocation skew

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Co-authored-by: Jonathan Klabunde Tomer <125505367+jkt-signal@users.noreply.github.com>
This commit is contained in:
adel-signal
2024-05-02 12:34:34 -07:00
committed by GitHub
parent cc6ec1d351
commit 854ab353b3
4 changed files with 19 additions and 11 deletions
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9
service/src/main/java/org/whispersystems/textsecuregcm/util/Util.java
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@@ -169,21 +169,18 @@ public class Util {
}
/**
* Chooses min(values.size(), n) random values.
* Chooses min(values.size(), n) random values in shuffled order.
* <br>
* Copies the input Array - use for small lists only or for when n/values.size() is near 1.
*/
public static <E> List<E> randomNOf(List<E> values, int n) {
public static <E> List<E> randomNOfShuffled(List<E> values, int n) {
if(values == null || values.isEmpty()) {
return Collections.emptyList();
}
List<E> result = new ArrayList<>(values);
if(n >= values.size()) {
return result;
}
Collections.shuffle(result);
return result.stream().limit(n).toList();
}