@samitouri / QOS-React-2 / commits / af1a4cbf7a

Revert expiration for retry lanes (#21300)

Retries should be allowed to expire if they are CPU bound for too long, but when I made this change it caused a spike in browser crashes. There must be some other underlying bug; not super urgent but ideally should figure out why and fix it. Unfortunately we don't have a repro for the crashes, only detected via production metrics.

Andrew Clark committed Apr 16, 2021 at 16:45 UTC af1a4cbf7adf2acae6f869e397198752d150e29a

2 files changed +14 -2

packages/react-reconciler/src/ReactFiberLane.new.js

+7 -1

@@ -362,12 +362,18 @@ function computeExpirationTime(lane: Lane, currentTime: number) {

362 case TransitionLane14:

363 case TransitionLane15:

364 case TransitionLane16:

365 + return currentTime + 5000;

366 case RetryLane1:

367 case RetryLane2:

368 case RetryLane3:

369 case RetryLane4:

370 case RetryLane5:

370 - return currentTime + 5000;

371 + // TODO: Retries should be allowed to expire if they are CPU bound for

372 + // too long, but when I made this change it caused a spike in browser

373 + // crashes. There must be some other underlying bug; not super urgent but

374 + // ideally should figure out why and fix it. Unfortunately we don't have

375 + // a repro for the crashes, only detected via production metrics.

376 + return NoTimestamp;

377 case SelectiveHydrationLane:

378 case IdleHydrationLane:

379 case IdleLane:

packages/react-reconciler/src/ReactFiberLane.old.js