๋ชฉ๋ก๋Œ€์šฉ๋Ÿ‰์—‘์…€์—…๋กœ๋“œ (1)

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POI SAX XSSFReader ๋Œ€์šฉ๋Ÿ‰ ์—‘์…€ ํŒŒ์ผ ์ฝ๊ธฐ OOME(Out of Memory Error) ๋ฐฉ์ง€

* ์ผ๋‹จ ์‹œ์ž‘ ์ „์— ๋Œ€์šฉ๋Ÿ‰ ํ…Œ์ŠคํŠธ๋ฅผ ์œ„ํ•œ  eclipse Heap ์˜์—ญ ๋Š˜๋ฆฌ๊ธฐeclipse .ini ํŒŒ์ผ์„ ์—ด๊ธฐ Xms (์‹œ์ž‘ํฌ๊ธฐ) / Xmx (์ตœ๋Œ€ํฌ๊ธฐ) ์ˆ˜์ •ํ•˜๊ธฐ ์ฐธ๊ณ ๋กœ Xmx ์ตœ๋Œ€ํฌ๊ธฐ๋Š” ์ž๊ธฐ์˜ pc ram ์‚ฌ์–‘์„ ํ™•์ธํ•˜๊ณ  ๋ฐ”๊พธ๊ธฐ ์ถ”์ฒœ  JVM ๋ฉ”๋ชจ๋ฆฌ ์ฒดํฌํ•˜๋Š” ๋ฐฉ๋ฒ• // ์—‘์…€ ํŒŒ์ผ ์ฒ˜๋ฆฌ ์ „์˜ ๋ฉ”๋ชจ๋ฆฌ ์ƒํƒœ ์ถœ๋ ฅRuntime runtime = Runtime.getRuntime();long memoryBefore = runtime.totalMemory() - runtime.freeMemory();totalMemory(): JVM์ด ํ• ๋‹นํ•œ ์ „์ฒด ๋ฉ”๋ชจ๋ฆฌ ์–‘์„ ๋ฐ˜ํ™˜. JVM์˜ ์ดˆ๊ธฐ ๋ฉ”๋ชจ๋ฆฌ ํฌ๊ธฐ์™€ ์ตœ๋Œ€ ๋ฉ”๋ชจ๋ฆฌ ํฌ๊ธฐ๋ฅผ ํ•ฉ์นœ ๊ฐ’ freeMemory(): ํ˜„์žฌ ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ๋ฉ”๋ชจ๋ฆฌ ์–‘์„ ๋ฐ˜ํ™˜. ํ˜„์žฌ ํ• ๋‹น๋œ ๋ฉ”๋ชจ๋ฆฌ ์ค‘์—์„œ..

Spring 2024. 5. 23. 16:23