[B! linux] m-ohshitaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

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linuxã«é–¢ã™ã‚‹m-ohshitaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (11)

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ï¿½Linux/DB Tuning (DevSumi2010, Japanese)
1. é«˜æ€§èƒ½ãƒ»å®‰å®šé‹ç”¨ã®ãŸã‚ã® Linux/DB ã‚·ã‚¹ãƒ†ãƒ æ§‹ç¯‰ / é‹ç”¨æŠ€è¡“ æ¾ä¿¡ å˜‰ç¯„ (MATSUNOBU Yoshinori) ã‚µãƒ³ãƒ»ãƒžã‚¤ã‚¯ãƒã‚·ã‚¹ãƒ†ãƒ ã‚ºæ ªå¼ä¼šç¤¾ ãƒ—ãƒªãƒ³ã‚·ãƒ‘ãƒ« MySQL ã‚³ãƒ³ã‚µãƒ«ã‚¿ãƒ³ãƒˆ 2. ãƒ—ãƒãƒ•ã‚£ãƒ¼ãƒ« 2006 å¹´ 9 æœˆã‹ã‚‰ MySQL->Sun(-> ã‚ªãƒ©ã‚¯ãƒ« ) ã§ MySQL ã‚³ãƒ³ã‚µãƒ«ã‚¿ãƒ³ãƒˆã¨ã—ã¦å‹¤å‹™ ä¸»ãªè‘—æ›¸ Linux-DB ã‚·ã‚¹ãƒ†ãƒ æ§‹ç¯‰ / é‹ç”¨å…¥é–€ ç¾å ´ã§ä½¿ãˆã‚‹ MySQL Java ãƒ‡ãƒ¼ã‚¿ã‚¢ã‚¯ã‚»ã‚¹å®Ÿè·µè¬›åº§ Twitter: matsunobu Blog: http://opendatabaselife.blogspot.com * ä»Šå›žã®è³‡æ–™ã¯å…¬é–‹ã—ã¾ã™ * MySQL ç”¨èªžãŒã‚ã¡ã“ã¡ã«å‡ºã¾ã™ãŒã€ çµŒé¨“ã®ç„¡ã„æ–¹ã«ã‚‚åˆ†ã‹ã‚‹ã‚ˆã†ã«é…æ…®ã—ã¦ã„ãã¤ã‚‚ã‚Šã§ã™ 3. å®‰å®šç¨¼åƒã¨é«˜æ€§èƒ½ã‚’æ”¯ãˆã‚‹è¦ç´ ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³å±¤ã«é–¢ã™ã‚‹æŠ€è¡“ ãƒ†ãƒ¼ãƒ–ãƒ«è¨è¨ˆã€ã‚¤ãƒ³ãƒ‡ãƒƒã‚¯ã‚¹è¨
m-ohshita 2010/02/18
linux

mysql
ãƒªãƒ³ã‚¯
NETDEV WATCHDOG - ç‹ã®æ—¥è¨˜
æœ€è¿‘ã€PowerEdgeã§ã‚¤ãƒ³ã‚¿ãƒ•ã‚§ãƒ¼ã‚¹ãŒå‹æ‰‹ã«å†èµ·å‹•ã™ã‚‹äº‹è±¡ã‚’ç¢ºèªã—ãŸã®ã§ã€ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’èª¿ã¹ã¦è¦‹ãŸã€‚ NETDEV WATCHDOG: eth0: transmit timed out ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã®å†…å®¹ã‚’èª¿ã¹ã¦ã¿ã‚‹ã¨ã€ NETDEV WATCHDOG: devname: transmit timed out ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ‡ãƒã‚¤ã‚¹ã® watchdog æ©Ÿèƒ½(*)ã«ã‚ˆã‚Šã€NIC ãŒå‹•ä½œã—ã¦ã„ãªã„çŠ¶æ…‹ã‚’æ¤œçŸ¥ã—ãŸã€‚ é€šå¸¸ã€ãƒ‡ãƒã‚¤ã‚¹ã«å†…è”µã•ã‚Œã¦ã„ã‚‹é€ä¿¡ãƒãƒƒãƒ•ã‚¡ã‚’ä½¿ã„åˆ‡ã‚Šãã†ã«ãªã‚‹ã¨ã€ã‚«ãƒ¼ãƒãƒ«ã¯ä¸€æ—¦ãƒ‡ãƒã‚¤ã‚¹ã¸ã®ãƒ‡ãƒ¼ã‚¿è»¢é€ã‚’ã‚„ã‚ã¦ã€ãƒ‡ãƒã‚¤ã‚¹ãŒã‚ã‚‹ç¨‹åº¦ãƒ‡ãƒ¼ã‚¿ã‚’é€ä¿¡ã™ã‚‹ã¾ã§å¾…ã¤ã€‚ å½“è©²ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã¯ã€ã“ã®å¾…ã¡çŠ¶æ…‹ã«ç§»è¡Œã—ã¦ã‹ã‚‰ã€ãƒ‡ãƒã‚¤ã‚¹ã”ã¨ã«è¨å®šã•ã‚Œã¦ã„ã‚‹é€ä¿¡ã‚¿ã‚¤ãƒ ã‚¢ã‚¦ãƒˆä»¥ä¸Šã®æ™‚é–“ãŒçµŒã£ã¦ã—ã¾ã£ãŸã“ã¨ã‚’é€šçŸ¥ã—ã¦ãŠã‚Šã€ãƒ‡ãƒã‚¤ã‚¹ã«ç•°å¸¸ãŒç™ºç”Ÿã—ã¦ã„ã‚‹å¯èƒ½æ€§ã‚’ç¤ºã—ã¦ã„ã‚‹ã€‚ éš£æŽ¥ã—ã¦ã„ã‚‹ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯æ©Ÿå™¨ã®æ•…éšœã‚„ã€LA
m-ohshita 2009/09/24
2

linux

network
ãƒªãƒ³ã‚¯
[users:12972] Re: NETDEV WATCHDOG: ã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ãŒå‡ºã‚‹
To: {users} {at} {turbolinux.co.jp} Subject: [users:12972] Re: NETDEV WATCHDOG: ã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ãŒå‡ºã‚‹ From: "{info} {at} {network.excel net.co.jp}" <{info} {at} {network.excel net.co.jp}> Date: Wed, 14 Dec 2005 11:12:59 +0900 ã‹ã‚ã‚€ã‚‰ï¼ ã‚¨ã‚¯ã‚»ãƒ«ã§ã™ åŒã˜æ§˜ãªç—‡çŠ¶ã«æ‚©ã¾ã•ã‚ŒãŸäº‹ãŒã‚ã‚Šã¾ã™ e1000ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã«æ˜Žç¤ºçš„ã«ãƒ‡ã‚£ãƒ•ã‚©ãƒ«ãƒˆã‚ªãƒ—ã‚·ãƒ§ãƒ³ã‚’æŒ‡å®šã™ã‚‹ã“ã¨ã§å›žé¿ å‡ºæ¥ã‚‹ãã†ã§ã™ ãã®æ™‚ã®æ‰‹é †ã§ã™ â†“ ï¼‘ï¼Žmodules.confã®[alias eth? e1000]ã®ä¸‹ã«ä»¥ä¸‹ã‚’è¿½åŠ # vi /etc/modules.conf options e1000 RxIntDelay=0,0 ï¼’ï¼Žå†èµ·å‹• #
m-ohshita 2009/09/24
4

linux

network
ãƒªãƒ³ã‚¯
NETDEV WATCHDOG: eth0: transmit timed out
æœ€è¿‘ã®ãƒˆãƒ©ãƒƒã‚¯ãƒãƒƒã‚¯ æœ€è¿‘ã®ã‚³ãƒ¡ãƒ³ãƒˆ NETDEV WATCHDOG: eth0: transmit timed out Kaz [11/20 02:25] Turbolinux 8 Server ã¯ç„¡äº‹ã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«æˆåŠŸ ã¿ã„ [03/29 23:01] winwood [03/30 13:23] ã‹ãªã‚Šã€ä¹…ã—ã¶ã‚Šã®æ›¸ãè¾¼ã¿ã«ãªã£ã¦ã—ã¾ã£ãŸãŒã€è¡¨é¡Œã®äº‹è±¡ã«æ‚©ã¾ã•ã‚Œç¶šã‘ã¦ã„ãŸã€‚ï¼ˆï¼‘ãƒ¶æœˆç¨‹å‰ã«ã¯ã»ã¼è§£æ±ºã—ãŸãŒã€ã“ã“ã‚’å¿˜ã‚Œã¦ã„ãŸãƒ»ãƒ»ãƒ»ï¼‰ DELL PowerEdge 1850ã«TurboLinux 10sã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ã€httpã‚µãƒ¼ãƒãƒ¼ã‚’é‹ç”¨ã—å§‹ã‚ã¦ï¼‘é€±é–“ç¨‹ãŸã£ãŸã‚ã‚‹æ—¥ã€messages ãƒã‚°ã«è¡¨é¡Œã®ãƒã‚°ã‚’å‡ºåŠ›ã—ã¦ã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚«ãƒ¼ãƒ‰ãŒãƒ€ã‚¦ãƒ³ã—ã¦ã—ã¾ã£ãŸã€‚ ã¨ã‚Šã‚ãˆãšã€ãƒªãƒ–ãƒ¼ãƒˆã—ã¦å¾©æ´»ã•ã›ãŸãŒã€ã¾ãŸï¼‘é€±é–“ç¨‹ã§ãƒ€ã‚¦ãƒ³ã€ãã®å¾Œã‚‚ä½•åº¦ã¨ç„¡ãä¸å®šæœŸï¼ˆï¼‘æ—¥ï½žï¼‘é€±é–“ç¨‹åº¦ï¼‰ã«ãƒ€ã‚¦ãƒ³ã‚’ç¹°ã‚Šè¿”
m-ohshita 2009/09/24
5

linux

network
ãƒªãƒ³ã‚¯
cron ã®å®Ÿè¡Œé †åºã‚’åˆ¶å¾¡ã™ã‚‹æ–¹æ³• | Carpe Diem
cron ã®ãƒãƒƒãƒå‡¦ç†ã®å®Ÿè¡Œé †åºã‚’åˆ¶å¾¡ã™ã‚‹ã¨ãã¯ã€setlock ã‚’ä½¿ã†ã¨ä¾¿åˆ©ãã†ã ã£ãŸã®ã§ã€è¨å®šã—ã¦ã¿ãŸã€‚ã“ã®æ–¹æ³•ã§ã¯ã€setlock ã« setlock ã‚’è¨å®šã—ã¦ã„ã‚‹ç†ç”±ãŒã‚ˆãåˆ†ã‹ã‚‰ãªã‹ã£ãŸã®ã§ã€ä½•ã¯ã¨ã‚‚ã‚ã‚Œè©¦ã—ã¦ã¿ãŸã€‚ setlock ã«ã¤ã„ã¦ã®ãƒ˜ãƒ«ãƒ—ã¯ã€ã“ã¡ã‚‰ã€‚ ã¾ãšã€daemontools ã® RPM ã¯ã€daemontools.spec ã‚’ä½¿ã†ã¨ã™ãã«ä½œã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚daemontools ã¯ã€/usr/local/bin ã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã•ã‚Œã‚‹ã€‚ æ¬¡ã«ã€ãƒãƒƒãƒå‡¦ç†ã«è¦‹ç«‹ã¦ãŸç°¡å˜ãªæ¬¡ã®ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’æº–å‚™ã™ã‚‹ã€‚ 1.rb: ä¸€ç•ªæœ€åˆã«å®Ÿè¡Œã•ã‚Œã‚‹æ¯Žæ™‚ãƒãƒƒãƒ #!/usr/bin/env ruby require â€˜dateâ€™ p â€œ#{__FILE__} start #{DateTime.now}â€ sleep 120 p â€œ#{__FILE__} end #{DateTime.n
m-ohshita 2009/09/21
6

daemontools

linux

tips
ãƒªãƒ³ã‚¯
IBM Developer
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.
m-ohshita 2009/09/16
6

linux

inotify
ãƒªãƒ³ã‚¯
lsyncdã‚’ã¤ã‹ã£ã¦ç°¡å˜ã«ãƒ•ã‚¡ã‚¤ãƒ«åŒæœŸã‚’ - UNIXçš„ãªã‚¢ãƒ¬
lsyncdã¨ã„ã†ãƒ„ãƒ¼ãƒ«ã‚’ã”å˜ã˜ã§ã—ã‚‡ã†ã‹ï¼Ÿã“ã‚Œã‚’å°Žå…¥ã™ã‚‹ã“ã¨ã§ã€ãƒªãƒ¢ãƒ¼ãƒˆã®ãƒ›ã‚¹ãƒˆã¨ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªå˜ä½ã§åŒæœŸã‚’ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ å…ˆæ—¥ã®ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã§ã‚‚ç´¹ä»‹ã—ã¦ã„ã¾ã™ãŒã€å®Ÿã¯è¨å®šã‚„å°Žå…¥ãŒã™ã”ãç°¡å˜ã§ã™ã€‚ã—ãŸè¨å®šã§ãƒªãƒ¢ãƒ¼ãƒˆé–“ã§ãƒ•ã‚¡ã‚¤ãƒ«ã®åŒæœŸã‚’ã¨ã‚Œã‚‹ã®ã¯ã‚„ã¯ã‚Šä¾¿åˆ©ã§ã™ã‚ˆãã€‚ ã•ã¦ã€ä»Šå›žã¯lsyncdã®ç°¡å˜ãªå°Žå…¥æ–¹æ³•ã‚’ç´¹ä»‹ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ lsyncdã®ä»•çµ„ã¿ lsyncdã¯linux kernel2.6.13ã§å°Žå…¥ã•ã‚ŒãŸã€inotifyã¨ã„ã†APIã‚’ã¤ã‹ã£ã¦å‹•ä½œã—ã¦ã„ã¾ã™ã€‚ inotifyã¯ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã®ã‚¤ãƒ™ãƒ³ãƒˆã‚’å–å¾—ã™ã‚‹ã“ã¨ãŒã§ãã‚‹APIã§ã€ãƒ•ã‚¡ã‚¤ãƒ«ã®ä½œæˆã‚„å‰Šé™¤ãªã©ã‚’ãã‚Œãžã‚Œã‚¤ãƒ™ãƒ³ãƒˆã¨ã—ã¦å–å¾—ã‚’ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ ã“ã®ä»•çµ„ã¿ã¨ã€rsyncã‚’çµ„ã¿åˆã‚ã›ã¦ãƒ•ã‚¡ã‚¤ãƒ«ã®åŒæœŸã‚’è¡Œã†ã“ã¨ã‚’å®Ÿç¾ã—ã¦ã„ã¾ã™ã€‚ lsyncdã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ« ã¾ãšã€ä»¥ä¸‹ã®ãƒšãƒ¼ã‚¸ã‹ã‚‰sourceã‚’ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã—ã¦ãã ã•ã„ã€‚
m-ohshita 2009/09/14
91

linux

server

tips
ãƒªãƒ³ã‚¯
Linux ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚° - Ext3 ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’æœ€å¤§åŒ–ã•ã›ã‚‹
ã˜ã¤ã¯è‡ªå®…ã‚µãƒ¼ãƒã®ãƒãƒ¼ãƒ‰ã‚¢ãƒ™ãƒ¬ãƒ¼ã‚¸ãŒä¸ŠãŒã‚Šç¶šã‘ã¦ã„ã¾ã™ã€‚åˆ†æžã®çµæžœã€ãƒœãƒˆãƒ«ãƒãƒƒã‚¯ã¯ I/O å‡¦ç†ã§ã—ãŸã€‚CPU ã¯ Athlon64 X2 4400+ ã§ã™ãŒã€ã¾ã ã¾ã å½“åˆ†ã“ã® CPU ã§é–“ã«åˆã„ãã†ã§ã™ã€‚HDD ã¯å½“æ™‚ã¯ 7200 å›žè»¢ã§æœ€é€Ÿã ã£ãŸ HITACHI Deskstar T7K250 SATA2 250GB ã‚’ RAID1 æ§‹æˆã«ã—ãŸã®ã§ã™ãŒã€ä»Šæ€ãˆã°é€Ÿåº¦å„ªå…ˆã§ RAID0 ã«ã—ã¦ãŠã‘ã°è‰¯ã‹ã£ãŸã¨å°‘ã—ã ã‘å¾Œæ‚”ã€‚ I/O ãŒãƒœãƒˆãƒ«ãƒãƒƒã‚¯ã«æˆã£ã¦ã„ã‚‹ç†ç”±ã§ã™ãŒã€Drk7jp ãŒå…¬é–‹ã—ã¦ã„ã‚‹ã‚µãƒ¼ãƒ“ã‚¹ã®å…¨ã¦ãŒã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒ•ã‚¡ã‚¤ãƒ«ã‚’åˆ©ç”¨ã—ãŸé«˜é€ŸåŒ–æ‰‹æ³•ã‚’å–ã£ã¦ã„ã‚‹ã®ã§ã™ãŒã€å˜ç´”ã«ãã‚Œã‚‰ãƒ•ã‚¡ã‚¤ãƒ«ã® write å‡¦ç†ãŒè¿½ã„ã¤ã„ã¦ã„ã¾ã›ã‚“ã€‚å¸¸ã«ä½•ã‚‰ã‹ã®ãƒ—ãƒã‚»ã‚¹ã§ I/O å¾…ã¡çŠ¶æ…‹ãŒç™ºç”Ÿã—ã¦ã„ã‚‹ã‚ˆã†ãªçŠ¶æ³ã§ã™ã€‚æŠœæœ¬çš„ãªè§£æ±ºæ–¹æ³•ã¨ã—ã¦ã¯ disk ã‚’é«˜é€Ÿãªã‚‚ã®ã«äº¤æ›ã™ã‚‹ä»¥å¤–ã‚ã‚Šã¾ã›ã‚“ã€‚ ã¨ã„ã†ã‚ã‘ã§
m-ohshita 2009/06/03
103

linux

performance
ãƒªãƒ³ã‚¯
æ°—ã¾ãã‚Œã‚½ãƒ•ãƒˆãƒã‚¦ã‚¹ Â» Samba3.0+OpenLDAP+Winbindã§ãƒ•ã‚¡ã‚¤ãƒ«ã‚µãƒ¼ãƒ
Fedora Core 3ä¸Šã§Samba3.0ã‚’ç¨¼å‹•ã•ã›ã€Windowsãƒ‰ãƒ¡ã‚¤ãƒ³ï¼ˆæœ¬ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆã§ã®Windowsãƒ‰ãƒ¡ã‚¤ãƒ³ã¨ã¯å…¨ã¦ActiveDirectoryãƒ‰ãƒ¡ã‚¤ãƒ³ã‚’ç¤ºã—ã¾ã™ï¼‰ã«å‚åŠ ã—ãŸãƒ•ã‚¡ã‚¤ãƒ«ã‚µãƒ¼ãƒã‚’æ§‹ç¯‰ã—ã¾ã™ã€‚ãƒ¦ãƒ¼ã‚¶ç®¡ç†ã¯LDAPã‚µãƒ¼ãƒã«ã‚ˆã£ã¦è¡Œã„ã¾ã™ã€‚ã¾ãŸã€Sambaãƒ¦ãƒ¼ã‚¶ã¨ã—ã¦ã€æ—¢å˜ã®Windowsãƒ‰ãƒ¡ã‚¤ãƒ³ä¸Šã®ãƒ¦ãƒ¼ã‚¶ã€ã‚°ãƒ«ãƒ¼ãƒ—ã‚’åˆ©ç”¨ã§ãã‚‹ã‚ˆã†ã«ã€Winbindã‚’ä½¿ç”¨ã—ã¾ã™ã€‚ # up2date openldap-servers openldap-clients â† å¿…è¦ãªãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ« Fetching Obsoletes list for channel: fedora-core-3... Fetching Obsoletes list for channel: updates-released-fc3... Fetching rpm headers...
m-ohshita 2009/03/26
3

linux

samba
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Open Tech Press | Linuxã®ã‚¹ãƒ¯ãƒƒãƒ—å‡¦ç†ã‚’æœ€é©åŒ–ã™ã‚‹ãŸã‚ã®ãƒ’ãƒ³ãƒˆ
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m-ohshita 2007/12/05
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m-ohshita 2007/10/09
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