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Add jitter to job exponential backoff.

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This commit is contained in:
Greyson Parrelli
2021-01-16 03:37:11 -05:00
parent 93e9dd6425
commit 8f7fe5c3ee
1 changed files with 6 additions and 3 deletions
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9
app/src/main/java/org/thoughtcrime/securesms/jobmanager/JobController.java
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@@ -453,9 +453,12 @@ class JobController {
}
private long calculateNextRunAttemptTime(long currentTime, int nextAttempt, long maxBackoff) {
int boundedAttempt = Math.min(nextAttempt, 30);
long exponentialBackoff = (long) Math.pow(2, boundedAttempt) * 1000;
long actualBackoff = Math.min(exponentialBackoff, maxBackoff);
int boundedAttempt = Math.min(nextAttempt, 30);
long exponentialBackoff = (long) Math.pow(2, boundedAttempt) * 1000;
long actualBackoff = Math.min(exponentialBackoff, maxBackoff);
double jitter = 0.75 + (Math.random() * 0.5);
actualBackoff = (long) (actualBackoff * jitter);
return currentTime + actualBackoff;
}