Fix: race in NextBackoff#92
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'Load' & 'Add' are two atomic ops, so concurrent callers can both pass the check before either increments. E.g., LimitRetry(.., 3) can occasionally allow 4+ attempts under high load. Switching to a single atomic Add fixes the race.
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@dim, can you please have a look when you have a minute? |
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Thanks!! |
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Load&Addare two atomic ops called one by one, so concurrent callers can both pass the check before either increments. E.g.,LimitRetry(.., 3)can occasionally allow4+attempts under high load. Switching to a single atomic Add fixes the race.