Update dbConnect.js #19644
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Update dbConnect.js #19644
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The previous logic was in my opinion prone to errors in situations when different calls to this function from different locations may happen at the same time ( like a race condition ). If the readyState is anything but not 0, then we must not try to perform a new connection as this may cause consequent connections! I hope this makes sense
mustafaKamal-fe
requested review from
chibicode,
ijjk,
lfades,
Timer and
timneutkens
as code owners
Stats from current PRDefault Server Mode (Decrease detected ✓)General
Page Load Tests Overall decrease
|
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| / failed reqs | 0 | 0 | ✓ |
| / total time (seconds) | 2.009 | 1.985 | -0.02 |
| / avg req/sec | 1244.29 | 1259.16 | +14.87 |
| /error-in-render failed reqs | 0 | 0 | ✓ |
| /error-in-render total time (seconds) | 1.128 | 1.142 | |
| /error-in-render avg req/sec | 2215.98 | 2188.83 |
Client Bundles (main, webpack, commons)
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| 677f882d2ed8..8b6e.js gzip | 12.8 kB | 12.8 kB | ✓ |
| framework.HASH.js gzip | 39 kB | 39 kB | ✓ |
| main-90b3d5a..55ad.js gzip | 6.54 kB | 6.54 kB | ✓ |
| webpack-e067..f178.js gzip | 751 B | 751 B | ✓ |
| Overall change | 59 kB | 59 kB | ✓ |
Legacy Client Bundles (polyfills)
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| polyfills-4b..e242.js gzip | 31 kB | 31 kB | ✓ |
| Overall change | 31 kB | 31 kB | ✓ |
Client Pages
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| _app-7231d4b..5856.js gzip | 1.28 kB | 1.28 kB | ✓ |
| _error-fca3d..2eb1.js gzip | 3.44 kB | 3.44 kB | ✓ |
| hooks-d4591d..e7c2.js gzip | 887 B | 887 B | ✓ |
| index-17468f..5d83.js gzip | 227 B | 227 B | ✓ |
| link-db223d9..dbd7.js gzip | 1.61 kB | 1.61 kB | ✓ |
| routerDirect..924c.js gzip | 284 B | 284 B | ✓ |
| withRouter-7..c13d.js gzip | 284 B | 284 B | ✓ |
| Overall change | 8.01 kB | 8.01 kB | ✓ |
Client Build Manifests
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| _buildManifest.js gzip | 321 B | 321 B | ✓ |
| Overall change | 321 B | 321 B | ✓ |
Rendered Page Sizes
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| index.html gzip | 614 B | 614 B | ✓ |
| link.html gzip | 621 B | 621 B | ✓ |
| withRouter.html gzip | 608 B | 608 B | ✓ |
| Overall change | 1.84 kB | 1.84 kB | ✓ |
Serverless Mode
General
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| buildDuration | 10.5s | 10.3s | -194ms |
| nodeModulesSize | 85 MB | 85 MB | ✓ |
Client Bundles (main, webpack, commons)
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| 677f882d2ed8..8b6e.js gzip | 12.8 kB | 12.8 kB | ✓ |
| framework.HASH.js gzip | 39 kB | 39 kB | ✓ |
| main-90b3d5a..55ad.js gzip | 6.54 kB | 6.54 kB | ✓ |
| webpack-e067..f178.js gzip | 751 B | 751 B | ✓ |
| Overall change | 59 kB | 59 kB | ✓ |
Legacy Client Bundles (polyfills)
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| polyfills-4b..e242.js gzip | 31 kB | 31 kB | ✓ |
| Overall change | 31 kB | 31 kB | ✓ |
Client Pages
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| _app-7231d4b..5856.js gzip | 1.28 kB | 1.28 kB | ✓ |
| _error-fca3d..2eb1.js gzip | 3.44 kB | 3.44 kB | ✓ |
| hooks-d4591d..e7c2.js gzip | 887 B | 887 B | ✓ |
| index-17468f..5d83.js gzip | 227 B | 227 B | ✓ |
| link-db223d9..dbd7.js gzip | 1.61 kB | 1.61 kB | ✓ |
| routerDirect..924c.js gzip | 284 B | 284 B | ✓ |
| withRouter-7..c13d.js gzip | 284 B | 284 B | ✓ |
| Overall change | 8.01 kB | 8.01 kB | ✓ |
Client Build Manifests
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| _buildManifest.js gzip | 321 B | 321 B | ✓ |
| Overall change | 321 B | 321 B | ✓ |
Serverless bundles
| vercel/next.js canary | mustafaKamal-fe/next.js patch-1 | Change | |
|---|---|---|---|
| _error.js | 996 kB | 996 kB | ✓ |
| 404.html | 2.67 kB | 2.67 kB | ✓ |
| hooks.html | 1.92 kB | 1.92 kB | ✓ |
| index.js | 996 kB | 996 kB | ✓ |
| link.js | 1.05 MB | 1.05 MB | ✓ |
| routerDirect.js | 1.04 MB | 1.04 MB | ✓ |
| withRouter.js | 1.04 MB | 1.04 MB | ✓ |
| Overall change | 5.13 MB | 5.13 MB | ✓ |
lfades
reviewed
Dec 30, 2020
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The previous logic was in my opinion prone to errors in situations when different calls to this function from different locations may happen at the same time ( like a race condition ). If the readyState is anything but not 0, then we must not try to perform a new connection as this may cause consequent connections!
I hope this makes sense