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서버 인프라를 지탱하는 기술 5.1-5.2
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allting
April 27, 2013
Technology
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서버 인프라를 지탱하는 기술 5.1-5.2
서버 인프라를 지탱하는 기술 5.1-5.2
allting
April 27, 2013
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Transcript
5.1 ࢲ࠺झ оزхद Nagios
оز хद ઙܨ ഐझա ࢲ࠺झ оز࢚కੋ ࢎഝ࢚క хद. ഐझ CPU
ࢎਊܫա ࢲ࠺झ زदܻਸ ١ ࠗೞ࢚క хद. ੌदр(1ѐਘա 1֙١) زউ ࢲ࠺झо ઁҕغҊ ח ࠺ਯੋ оزܫ ஏ.
ࢎഝ ࢚క хद ౠ ӝמ زೞҊ ח ৈࠗܳ ഛੋ. оز
хद ӝࠄ غח хद. ping ਵ۽ ഐझо ইח ৈࠗ, TCP োѾ оמ ৈࠗ, ࢲ࠺झ оמ ৈࠗ. োѾܻо غ ঋח ҃ ҙܻীѱ ాࠁ.
ച хद пп ഐझী ೧ хद. VIP(о࢚ IPࣗ)ী ೧ хद.
ചغয ח ੌࠗ গੋ, ࢲ࠺झ গੋ ഛੋ.
ࠗೞ ࢚క хद ࠺࢚ੋ ࠗೞо ח ഛੋ. CPUࠗೞ, OSۨ߰ীࢲ ӝ
۽ࣁझ ࣻ١ ਸ ஏೞৈ хद. ࢲ࠺झ ਃ௸ী ӝ ਃ ࣻա ਃ द рਸ ஏೞৈ ೠ ܻо غח хद.
җبೠ ࠗೞ DoSҕѺҗ э ࠺࢚ੋ ਃী ೠ ࠗೞ. Shashdotബҗ৬ э
جߊੋ ਃী ೠ ࠗೞ. ࣽࣻೞѱ ࢲ࠺झо ੋӝܳ ਵ۽ॄ ੌೞѱ ਬغח ਃী ೠ ࠗೞ.
оزܫ ஏ ੌ ӝрزউ хदബҗܳ ࠙ࢳೣਵ۽ॄ दझమ ӝੋ ѐࢶਸ ೞӝ
ਤೣ. दझమ ੋ ച ࣻળա ҙܻ ਬࠁࣻ ઁ١ ۚ ౸ױਸ ب.
Nagios ѐਃ ping ী ೠ ഐझ ࢎഝхद. TCPࣘী ೠ
пઙ ࢲ࠺झ хद. SNMP ী ೠ ഐझ ࢚క хद. ۞Ӓੋਸ ాೠ хद. ೞ٘ਝয хद.
ب http://sourceforge.net/ projects/nagios/
Nagios ࢸ - v 3.0.2
host ࢸ хद ࢚ غח ഐझ. flap_detection_enabled - ېೝ ઁೠ.
max_check_attempts - গ ߊࢤ ౸. notification_period - ాೡ दр. ex)24x7, workhours, none... check_command - хदী ࢎਊೡ ݺ۸য.
service ࢲ࠺झ ഐझ࢚ীࢲ زೞח ࢲ࠺झܳ .
command ݺ۸
contactҗ contactgroup contact ਵ۽ ా ࢚. contactgroup ਵ۽ ా ࢚
Ӓܛ .
Nagiosࢎਊߨ-ഐझ/ࢲ࠺झ
ా ݫੌ, IRC,IM, ോച...
ਊ - оزܫ ஏ http:// www.hatena.ne.jp Nagios झە хद graph
p258
ةੋ ۞Ӓੋ MySql ܻܻா࣌ хद - show slave status MySql
۽ࣁझ ѐࣻ хद - show processlist memcached хद - 2546 line
5.2 ࢲߡ ܻࣗझ ݽפఠ݂ Ganglia ݽפఠ݂ - ߸زਸ ҙೠ. ࢲߡ
࢚కܳ աఋղח নೠ чਸ ҅ࣘਵ۽ ӝ۾ೞҊ दпച೧ࢲ ҃ೱա ߸زਸ ঈೞӝ औѱ ೞח Ѫ.
Ganglia ֢٘ (ࢲߡ )୶о ਊ. ୶оೠ ֢٘ী ী(gmond) प೯ ࣻҗ
Ӓېܳ Ӓܻח झప࣌(gmetad) ݣ౭நझ ਊ. Ӓې ੌݾਃোೣ.
http://ganglia.wikimedia.org/latest/
ই ۽ࣁझ ࢚క Ӓېച ই ݽٕ mod_status ࢸ. /server-status/?auto gmetric
-> gmetad
Ӓ ߆ ழझథ Ӓې MySQL пઙ நद(ః, ௪ܻ நद) ਯ.
ୡױਤ ܻ ௪ܻ ࣻ Ӓې. ౠ ௰ܻ ࠺ਯ. InnoDB ప࠶ झಕझ թ ਊ. ࣘ োѾ ࣻ. T omcat ൩ ݫݽܻ ࢎਊ ࢚ട.