Bug Wiki State & Data ConsistencyStale cache

39 examples

Stale cache

Serving outdated data due to caching issues.

[ FAQ1 ]

What is stale cache?

A stale cache refers to cached content that remains stored beyond its validity period, resulting in users viewing outdated or incorrect information. Caching mechanisms like browser caches, content delivery networks (CDNs), or service workers store copies of frequently accessed data to improve performance. However, without proper cache invalidation strategies, cached resources may not refresh promptly when original content changes. This mismatch causes inconsistencies and confusion, degrading user experience and potentially compromising data accuracy in web applications.

[ FAQ2 ]

How to fix stale cache issues

To fix stale cache issues, implement effective cache invalidation techniques to ensure users receive up-to-date content. Configure HTTP headers properly, such as Cache-Control, ETag, and Expires, to manage browser and CDN caching behavior effectively. Utilize versioning strategies by appending query parameters or unique hashes to resource URLs when updates occur, prompting browsers or CDNs to fetch fresh content. In modern web applications, leverage service workers' cache management APIs to control caching behavior precisely. Regularly audit and test caching mechanisms, ensuring consistency across caching layers to minimize stale cache occurrences.

greptileai/react-benchmark·#1336

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#3395

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is module-level and persists between runs. Consider clearing it when onlyChanged is false to prevent stale cache entries.

greptileai/react-benchmark·#1507

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#2278

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is module-level and persists between runs. Consider clearing it when onlyChanged becomes false to prevent stale cache entries.

greptileai/react-benchmark·#1175

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#1173

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#1138

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache state in long-running processes

greptileai/react-benchmark·#1342

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#2676

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

style: Global state variables could be cleared between runs to prevent stale cache issues

greptileai/react-benchmark·#3071

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#3580

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: Persistent eslintCache is never cleared between runs; confirm if stale cache is acceptable.

greptileai/react-benchmark·#5272

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

style: Global state (changedFiles and eslintCache) could be cleared between runs to prevent stale cache issues

greptileai/react-benchmark·#4877

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: Global variables changedFiles and eslintCache could be cleared between runs, potentially causing stale cache issues

greptileai/react-benchmark·#4893

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is module-level and persists between runs. Consider clearing it when onlyChanged is false to prevent stale cache entries.

greptileai/react-benchmark·#5009

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is module-level and persists between runs. Consider clearing it when onlyChanged is false to prevent stale cache entries.

greptileai/react-benchmark·#5077

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

style: Global state variables could be cleared between runs to prevent stale cache issues

greptileai/react-benchmark·#5401

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#5465

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

-function runESLintOnFilesWithOptions(filePatterns, onlyChanged, options) {

- const cli = new CLIEngine(options);

- const formatter = cli.getFormatter();

+async function runESLintOnFilesWithOptions(filePatterns, onlyChanged, options = {}) {

+ const defaultOptions = {

+ cache: true,

+ cacheLocation: '.eslintcache',

+ fix: false,

+ maxWarnings: 100,

+ ...options

+ };

+ const cli = new CLIEngine(defaultOptions);

+ const formatter = cli.getFormatter('stylish');

if (onlyChanged && changedFiles === null) {

- // Calculate lazily.

- changedFiles = [...listChangedFiles()];

+ try {

+ changedFiles = [...await listChangedFiles()];

+ changedFiles.forEach(file => {

+ if (!eslintCache.has(file)) {

+ eslintCache.set(file, null);

+ }

+ });

greptile

logic: Cache is being set before linting results are known, which could lead to stale cache entries if linting fails.

greptileai/react-benchmark·#5870

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#5792

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#5915

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#6006

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#6072

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache state

greptileai/react-benchmark·#1113

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

-function runESLintOnFilesWithOptions(filePatterns, onlyChanged, options) {

- const cli = new CLIEngine(options);

- const formatter = cli.getFormatter();

+async function runESLintOnFilesWithOptions(filePatterns, onlyChanged, options = {}) {

+ const defaultOptions = {

+ cache: true,

+ cacheLocation: '.eslintcache',

+ fix: false,

+ maxWarnings: 100,

+ ...options

+ };

+ const cli = new CLIEngine(defaultOptions);

+ const formatter = cli.getFormatter('stylish');

if (onlyChanged && changedFiles === null) {

- // Calculate lazily.

- changedFiles = [...listChangedFiles()];

+ try {

+ changedFiles = [...await listChangedFiles()];

+ changedFiles.forEach(file => {

+ if (!eslintCache.has(file)) {

+ eslintCache.set(file, null);

+ }

+ });

+ } catch (error) {

+ console.error('Error getting changed files:', error);

+ throw error;

+ }

}

greptile

logic: Cache initialization only happens when changedFiles is null, which could lead to stale cache if files change during runtime

greptileai/react-benchmark·#1080

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#1287

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#1448

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is not cleared between runs, which could lead to stale cache entries persisting across multiple executions

greptileai/react-benchmark·#1600

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is module-level and persists between runs. Consider clearing it when needed to prevent stale cache issues.

greptileai/react-benchmark·#1300

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: These global variables could be reset between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#2524

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: Global state variables could be cleared between runs, potentially causing stale cache issues in long-running processes

greptileai/react-benchmark·#1544

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is module-level and persists between runs. Consider clearing it when onlyChanged is false to prevent stale cache entries.

greptileai/react-benchmark·#5724

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: Global variables changedFiles and eslintCache could be cleared between runs, potentially causing stale cache issues

greptileai/react-benchmark·#3047

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: Global state variables could be cleared between runs, potentially causing stale cache issues

greptileai/react-benchmark·#2726

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: Global variables changedFiles and eslintCache could be cleared between runs, potentially causing stale cache issues

greptileai/react-benchmark·#2731

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is module-level and persists between runs. Consider clearing it when onlyChanged is false to prevent stale cache entries.

greptileai/react-benchmark·#3054

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is module-level and persists between runs. Consider clearing it when onlyChanged becomes false to prevent stale cache entries.

greptileai/react-benchmark·#3120

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

style: Global state variables could be cleared between runs to prevent stale cache issues

greptileai/react-benchmark·#2620

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is module-level and persists between runs. Consider clearing it when onlyChanged is false to prevent stale cache entries.

greptileai/react-benchmark·#2462

diff block

const CLIEngine = require('eslint').CLIEngine;

const listChangedFiles = require('../shared/listChangedFiles');

-const allPaths = ['**/*.js'];

+const allPaths = ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx'];

let changedFiles = null;

+let eslintCache = new Map();

greptile

logic: eslintCache is module-level and persists between runs. Consider clearing it when onlyChanged becomes false to prevent stale cache entries.

Want to avoid this bug in your codebase? Try Greptile.

Avoid this bug!

Stale cache

What is stale cache?

How to fix stale cache issues

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