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perf(build): add memory management during page rendering to prevent OOM errors #4955

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perf(build): add memory management during page rendering to prevent OOM errors #4955

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d207c97
fix: add memory management to prevent heap overflow during large site…
Sep 23, 2025
2796a2e
Merge branch 'main' into fix-memory-leak-4833
lev-corrupted Sep 24, 2025
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21 changes: 20 additions & 1 deletion src/node/build/build.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -136,6 +136,11 @@ export async function build(

const usedIcons = new Set<string>()

// Memory management: track processed pages for periodic cleanup
let processedCount = 0
const totalPages = ['404.md', ...siteConfig.pages].length
const cleanupInterval = 50

await pMap(
['404.md', ...siteConfig.pages],
async (page) => {
Expand All @@ -152,8 +157,22 @@ export async function build(
additionalHeadTags,
usedIcons
)

// Memory management: periodic cache clearing and garbage collection
processedCount++
if (processedCount % cleanupInterval === 0) {
siteConfig.logger.info(
`Processed ${processedCount}/${totalPages} pages, clearing cache to manage memory...`
)
clearCache()

// Optional garbage collection hint
if (global.gc) {
global.gc()
}
}
},
{ concurrency: siteConfig.buildConcurrency }
{ concurrency: Math.min(10, siteConfig.buildConcurrency || 10) }
)

const icons = require('@iconify-json/simple-icons/icons.json')
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