[B! memory] hackedã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

hacked id:hacked

memoryã«é–¢ã™ã‚‹hackedã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (7)

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Solr ã®ãƒ¡ãƒ¢ãƒªä½¿ç”¨é‡ã‚’å°ã•ãã™ã‚‹ - ã¼ã†ãšã®æ—¥å¸¸çš„é›‘æ„Ÿ
Solr ã§ä½¿ã‚ã‚Œã‚‹ãƒ¡ãƒ¢ãƒªã‚’æ¸›ã‚‰ã™å¿…è¦ãŒã‚ã‚‹å ´åˆã«åƒ•ãŒã¨ã‚Šã‚ãˆãšè€ƒãˆã‚‹ã“ã¨ã‚’æŒ™ã’ã¾ã™ï¼Žä»¥ä¸‹ã®å†…å®¹ã¯åƒ•ã® Solr 1.3 ã§ã®çµŒé¨“ã«åŸºã¥ã„ã¦ã¾ã™ãŒï¼ŒãŠãã‚‰ãæ¬¡æœŸç‰ˆã® 1.4 ã§ã‚‚åŒã˜ã§ã¯ãªã„ã‹ã¨æ€ã„ã¾ã™ï¼Žã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚’å°ã•ãã™ã‚‹Solr ã¯ãƒ¡ãƒ¢ãƒªä¸Šã«æ¤œç´¢çµæžœã‚’ã‚ãƒ£ãƒƒã‚·ãƒ¥ã™ã‚‹æ©Ÿæ§‹ã‚’æŒã£ã¦ã„ã¾ã™ï¼Žã“ã‚Œã¯æ¤œç´¢æ€§èƒ½ã‚’å‘ä¸Šã™ã‚‹ã®ã«ã¨ã¦ã‚‚å½¹ç«‹ã¡ã¾ã™ãŒï¼Œãƒ¡ãƒ¢ãƒªã‚’é£Ÿã„ã¾ã™ï¼Žã‚ãƒ£ãƒƒã‚·ãƒ¥ã¯ (Solrã‚³ã‚¢ã®ãƒ›ãƒ¼ãƒ ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒª)/conf/solrconfig.xml ã§å®šç¾©ã•ã‚Œï¼Œã‚µã‚¤ã‚ºã‚’æŒ‡å®šã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ï¼ŽSolr ã®ã‚ãƒ£ãƒƒã‚·ãƒ¥ã¯ä½•ç¨®é¡žã‹ã‚ã‚Šï¼Œè‡ªåˆ†ã§ç”¨æ„ã™ã‚‹ã“ã¨ã‚‚ã§ãã¾ã™ãŒï¼ŒãŸã¨ãˆã°å…ƒã‹ã‚‰ç”¨æ„ã•ã‚Œã¦ãŠã‚Šä¸–è©±ã«ãªã‚‹å¯èƒ½æ€§ãŒé«˜ã„ filterCache ã¯ï¼ŒSolr æ·»ä»˜ã® example å†…ã® solrconfig.xml ã§æ¬¡ã®ã‚ˆã†ã«å®šç¾©ã•ã‚Œã¦ã„ã¾ã™: ã‚ãƒ£ãƒƒã‚·ãƒ¥ã®å®¹é‡ã‚’å°ã•ãã™ã‚‹ã«ã¯ï¼Œsize å±žæ€§ã®å€¤ã‚’
hacked 2011/01/19
solr

memory
ãƒªãƒ³ã‚¯
Javaã®ç†è«–ã¨å®Ÿè·µ: å¼±å‚ç…§ã§ãƒ¡ãƒ¢ãƒªãƒ¼ãƒ»ãƒªãƒ¼ã‚¯ã‚’å¡žã
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
hacked 2011/01/18
java

memory
ãƒªãƒ³ã‚¯
DBã‚µãƒ¼ãƒå‘ã‘Linuxãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã‚’è€ƒãˆã‚‹ ã€œ ãƒ¡ãƒ¢ãƒªã‚ªãƒ¼ãƒãƒ¼ã‚³ãƒŸãƒƒãƒˆç·¨ : DSASé–‹ç™ºè€…ã®éƒ¨å±‹
Cã§ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’æ›¸ã„ã¦ã„ã¦å¤§é‡ã®ãƒ¡ãƒ¢ãƒªã‚’ç¢ºä¿ã—ãŸããªã£ãŸã¨ãã€å¤§æŠµã¯ mallocã‚’ä½¿ã†ã¨æ€ã„ã¾ã™ãŒã€ãã®éš›ã«ã¯æˆ»ã‚Šå€¤ãŒNULLã‹ã©ã†ã‹ã‚’åˆ¤æ–ã—ã¦ã‚¨ãƒ©ãƒ¼å‡¦ç†ã«é£›ã°ã™ã¨æ€ã„ã¾ã™ã€‚ã—ã‹ã—ã€Linux ã®ãƒ¡ãƒ¢ãƒªç®¡ç†ã‚µãƒ–ã‚·ã‚¹ãƒ†ãƒ ã«ã¯ã€Œãƒ¡ãƒ¢ãƒªãƒ»ã‚ªãƒ¼ãƒãƒ¼ã‚³ãƒŸãƒƒãƒˆã€ã¨ã„ã†æ©Ÿæ§‹ãŒã‚ã‚Šã€å®Ÿè£…ã•ã‚Œã¦ã„ã‚‹ãƒ¡ãƒ¢ãƒªä»¥ä¸Šã®é ˜åŸŸã‚’ç¢ºä¿ã§ãã¦ã—ã¾ã„ã¾ã™ã€‚ #include <stdio.h> #include <stdlib.h> int main() { int i; char *p; for(i=0;i<65536;i++){ p = (char *)malloc(65536); if(0 == (long)p){ break; } } printf("SIZE=%dMB\n",i*65536/1024/1024); return(0); } swapoff ã—ãŸãƒ¡ãƒ¢ãƒª 1G ã®ãƒžã‚·ãƒ³ã§ã“ã‚Œã‚’å®Ÿè¡Œã™ã‚‹ã¨ã“ã‚“ãªæ„Ÿã˜ã«ãª
hacked 2010/07/14
memory

Linux

kernel
ãƒªãƒ³ã‚¯
Linux Memory Overcommit - memologue
ã‹ãªã‚Šæ˜”ã§ã™ãŒã€æˆ–æ—¥ã•ã‚“ã®Solaris8ã«ãŠã‘ã‚‹memory over commitã®è©±é¡Œã«è§¦ç™ºã•ã‚Œã€Linuxã®å ´åˆã«ã¤ã„ã¦èª¿ã¹ãŸäº‹ãŒã‚ã‚Šã¾ã™ã€‚æ£ã—ã•ã¯ä¿è¨¼ã—ã¾ã›ã‚“ãŒå½“æ™‚ã®ãƒ¡ãƒ¢ã‚’è²¼ã£ã¦ãŠãã¾ã™ã€‚ memory overcommit? ãƒ¡ãƒ¢ãƒªè³‡æºã®éžå¸¸ã«é™ã‚‰ã‚ŒãŸç’°å¢ƒã§Linuxã‚’ä½¿ç”¨ã—ã¦ã„ã‚‹ã¨ã‚ˆãéé‡ã™ã‚‹ç¾è±¡ãªã®ã ãŒã€kernel 2.4ã¾ã§ã®Linuxã§ã¯ã€"mallocãŒæˆåŠŸã‚’è¿”ã—ãŸã«ã‚‚ã‹ã‹ã‚ã‚‰ãšã€ãã®ç¢ºä¿ã—ãŸçˆã®ãƒ¡ãƒ¢ãƒªé ˜åŸŸã«ã‚¢ã‚¯ã‚»ã‚¹ã™ã‚‹ã¨ã€SIGKILLã«ã‚ˆã£ã¦kernelã‹ã‚‰å¼·åˆ¶çµ‚äº†ã•ã›ã‚‰ã‚Œã¦ã—ã¾ã†" ã¨ã„ã†ç¾è±¡ãŒ ç™ºç”Ÿã™ã‚‹ã“ã¨ãŒã‚ã‚‹ã€‚ã“ã‚Œã¯ã€ã€Œå…¨ãƒ—ãƒã‚»ã‚¹ãŒnew/mallocã—ãŸãƒ¡ãƒ¢ãƒªã®ç·é‡ã€ã«å¯¾ã—ã¦ç‰©ç†ãƒ¡ãƒ¢ãƒªé‡ãŒå°‘ãªã™ãŽã‚‹çž¬é–“ã«æ–¼ã„ã¦ã¯å¸¸ã«ç™ºç”Ÿã—å¾—ã‚‹ã€‚ ä½•ã«å›°ã£ã¦ã„ã‚‹ã‹ã¨ã„ãˆã°ã€C++ã§ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’newã—ãŸæ™‚ã«ã€ãƒ¡ãƒ¢ãƒªã®æž¯æ¸‡ã‚’std::bad_allocä¾‹å¤–é€å‡ºã¨ã„ã†å½¢ã§
hacked 2010/07/14
é«˜æž—å“²ã•ã‚“ã®blog

memory

binary

Linux

overcommit
ãƒªãƒ³ã‚¯
blog-category-9.html
ã‚¿ã‚¤ãƒˆãƒ«ã®ã‚¨ãƒ©ãƒ¼ãŒ$TOMCAT_HOME/logs/catalina.outã«å‡ºåŠ›ã•ã‚Œã‚¹ãƒ¬ãƒƒãƒ‰ãŒçµ‚äº†ã—ã¦ã„ãŸã€‚ã€‚ ã“ã®ã‚¨ãƒ©ãƒ¼ã®ã‚±ãƒ„ã«æ³¨ç›®ã€‚ ã“ã‚ŒãŒPermGen spaceã§ã¯ãªãJava Heap Spaceã¨å‡ºã‚Œã°javaã®ãƒ’ãƒ¼ãƒ—é ˜åŸŸãŒä¸è¶³ã—ã€ Out of Memoryã‚¨ãƒ©ãƒ¼ãŒèµ·ãã¦ã‚¹ãƒ¬ãƒƒãƒ‰ãŒçµ‚äº†ã—ã¦ã„ãŸã¨è€ƒãˆã‚‰ã‚Œã‚‹ã€‚ ãƒ’ãƒ¼ãƒ—é ˜åŸŸãŒä¸è¶³ã—ãŸå ´åˆã¯Tomcatãƒ—ãƒã‚»ã‚¹ã«å‰²ã‚Šå½“ã¦ã‚‰ã‚Œã‚‹OSãŒè¨±ã™æœ€å¤§ã®ãƒ¡ãƒ¢ãƒªé ˜åŸŸ ã‚’æŒ‡ã™ã®ã§ä¸è¶³ã—ã¦ã„ã‚‹ã¨ã„ã†ã“ã¨ã¯ãƒ—ãƒã‚°ãƒ©ãƒ ãŒãƒ¡ãƒ¢ãƒªã‚’é–‹æ”¾ã•ã›ã‚‹ã‚ˆã†çµ„ã¾ã‚Œã¦ã„ãªã„ã‹ã€ ãƒ¡ãƒ¢ãƒªã«ã‚´ãƒŸãŒãŸã¾ã‚Šã‚„ã™ã„ã‚ˆã†è¨è¨ˆã•ã‚Œã¦ã„ãªã„ã‹ãªã©ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ç–‘ã†ã“ã¨ãŒã§ãã¾ã™ã€‚ ã—ã‹ã—ã€ä»Šå›žã®ã°ã‚„ã„ã€PermGen spaceãªã®ã§ã“ã‚Œã¯éžãƒ’ãƒ¼ãƒ—é ˜åŸŸã§ã™ã€‚ ã˜ã‚ƒã‚ã“ã®é ˜åŸŸã¯ãªã‚“ãªã‚“ã§ã—ã‚‡ã†ï¼Ÿ ãã‚Œã¯Permanenté ˜åŸŸã¨è¨€ã£ã¦ä¸»ã«Javaã‚¯ãƒ©ã‚¹ã®ãƒ¡ã‚¿æƒ…å ±ãŒæ ¼ç´ã•ã‚Œã¾ã™ã€‚ å˜ç´”ãªãƒ—
hacked 2010/06/15
memory

Java

tuning

ãƒ¡ãƒ¢ãƒª
ãƒªãƒ³ã‚¯
OutOfMemoryã‚¨ãƒ©ãƒ¼ç™ºç”Ÿ!? GCãŒã‚ã‚‹ã®ã«ã€ãªãœï¼Ÿ
ä»Šå›žã®æ¦‚è¦ æœ¬ç¨¿ã§ã¯Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®é–‹ç™ºãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§å®Ÿéš›ã«ç›´é¢ã—ãŸãƒ¡ãƒ¢ãƒªã«é–¢ã™ã‚‹ãƒˆãƒ©ãƒ–ãƒ«äº‹ä¾‹ã®ä¸ã‹ã‚‰java.lang.OutOfMemoryErrorã‚’é¡Œæã¨ã—ãŸTipsã‚’ç´¹ä»‹ã™ã‚‹ã€‚ å¸°å®…ç›´å‰ã«ã€çªç„¶é›»è©±ãŒé³´ã‚ŠéŸ¿ã æ¥å‹™ã‚’çµ‚ãˆã¦å¸°å®…ã—ã‚ˆã†ã¨ã—ãŸã¨ã‚ã‚‹å¤œã€çªç„¶é›»è©±ãŒé³´ã‚‹ã€‚ç›¸æ‰‹ã¯ç¤¾å†…ã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã®ãƒžãƒãƒ¼ã‚¸ãƒ£ã§ã‚ã‚‹ã€‚ ã€Œç¾åœ¨ã€ãƒ†ã‚¹ãƒˆã‚’å®Ÿæ–½ã—ã¦ã„ã‚‹ãŒã€æ•°åˆ†çµŒã¤ã¨OutOfMemoryErrorãŒç™ºç”Ÿã—ã¦ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ãŒè½ã¡ã¦ã—ã¾ã†ã€‚å†èµ·å‹•ã‚’æŽ›ã‘ã‚‹ã¨ã€ã¾ãŸé †èª¿ã«å‹•ããŒã€ã—ã°ã‚‰ãåˆ©ç”¨ã—ã¦ã„ã‚‹ã¨ã€åŒã˜ã‚ˆã†ã«OutOfMemoryErrorãŒç™ºç”Ÿã™ã‚‹ã€‚ãƒ¡ãƒ¢ãƒªä¸è¶³ã®ã‚¨ãƒ©ãƒ¼ãªã®ã§ã€ç‰©ç†ãƒ¡ãƒ¢ãƒªã‚’å¢—ã‚„ãã†ã‹ã¨æ€ã£ã¦ã„ã‚‹ãŒã€ç‰©ç†ãƒ¡ãƒ¢ãƒªå¢—è¨ã®å‰ã«ã€ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã¨ã„ã†è¦³ç‚¹ã‹ã‚‰ãƒ¡ãƒ¢ãƒªä¸è¶³ã‚’å¼•ãèµ·ã“ã™å•é¡ŒãŒãªã„ã‹èª¿æŸ»ã—ã¦ã»ã—ã„ã€ å–ã‚Šã‚ãˆãšã€åŽŸå› ã‚’æŽ¢ã‚‹ãŸã‚ã«ç¾å ´ã«æ€¥è¡Œã—ãŸã€‚ ç¾å ´ã«ã¦ãƒˆãƒ©ãƒ–ãƒ«ã®è©³ç´°ã‚’ãƒ’ã‚¢
hacked 2007/07/26
development

gc

java

memory

performance

programming
ãƒªãƒ³ã‚¯
http://www.valueland.jp/product_info.php/products_id/2960?osCsid=db631d3b2d989306047e035b7969d5bc
hacked 2007/04/02
memory

DDR2
ãƒªãƒ³ã‚¯
1