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L4 ½ºÀ§Ä¡ ¾øÀÌ Load Balancing(·Îµå¹ë·±½Ì) ±¸¼ºÇϱâ - crossroads
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[L4 ½ºÀ§Ä¡ ¾øÀÌ Load Balancing ±¸¼ºÇϱâ - crossroads]

°í°¡¿ë¼º ½Ã½ºÅÛ ±¸¼ºÀ» À§ÇØ L4 ½ºÀ§Ä¡¸¦ ¸¹ÀÌ »ç¿ëÇÑ´Ù. ÇÏÁö¸¸ ¸®´ª½º¿¡´Â L4 ½ºÀ§Ä¡°¡ ÇÏ´Â ¿ªÇÒÀ» ´ë½Å ÇÒ¼öÀÖ´Â ¿ÀǼҽº°¡ ¸¹ÀÌ Á¸ÀçÇÑ´Ù. ´ëÇ¥ÀûÀÎ°Ô Zen,Haproxy,ipvsadm, crossroads µîÀÌ ÀÖ´Ù. ÀÌÁß¿¡¼­ ¿À´ÃÀº crossroads ¶ó´Â ¿ÀǼҽº¿¡ ´ëÇØ¼­ Çѹø ¾Ë¾Æº¸µµ·Ï ÇϰڴÙ.


crossroads ´Â L4 Àåºñ°¡ ¼öÇàÇÏ´Â ±âº»ÀûÀÎ ·Îµå¹ë·±½º ±â´ÉÀ» °¡Áö°íÀÖ´Ù. 2´ëÀÌ»óÀÇ ¼­¹ö°¡ ¼­ºñ½ºÁß¿¡ 1´ë°¡ Àå¾Ö°¡ ¹ß»ýÇÒ°æ¿ì ³ª¸ÓÁö 1´ëÀÇ ¼­¹ö·Î ÀÚµ¿À¸·Î TCP ¿¬°áÀÌ µÇµµ·Ï ±¸¼ºµÇ¾îÀÖ´Ù.


Screenshot - 2016³â 01¿ù 23ÀÏ - 15½Ã 39ºÐ 10ÃÊ.png


B1,B2,B3 ´Â ¼­·Î µ¥ÀÌÅͰ¡ °øÀ¯µÇ°í ÀÖÀ¸¸ç, Ŭ·¯½ºÅÍ, glusterfs, nfs µî µ¥ÀÌÅÍ °øÀ¯°¡ µÇ°íÀÖ´Â »óÅ´Ù.


¼³Ä¡¹æ¹ýµµ °£´ÜÇϸç Àß È°¿ëÇϸé load balancing À» ±¸¼ºÇÏ¿© ½±°Ô »ç¿ëÇÒ¼ö ÀÖ´Ù.


XR crossroads Gateway  Server  : 192.168.0.8

WEB 1 : 192.168.0.2:80

WEB 2 : 192.168.0.4:80


WEB1°ú WEB2´Â µ¿ÀÏÇÏ°Ô ¼ÂÆÃ µÈ ¼­¹ö ÀÌ´Ù. µ¥ÀÌÅÍ µ¿±âÈ­´Â  ±Û·¯½ºÅÍ,  NFC, rsync µî ¿©·¯¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© µ¿±âÈ­¸¦ ÁøÇà½ÃÄѳõ´Â´Ù.


3´ëÀÇ ¼­¹ö ¸ðµÎ SUlinux 2014 R6 64bit ¹öÀüÀ» ÀÌ¿ëÇÏ¿© ¼³Ä¡ÇÏ¿´´Ù.



[¼³Ä¡¹æ¹ý]


gcc ÄÄÆÄÀÏ·¯°¡ ÇÊ¿äÇÏ´Ù. ¾Æ·¡¿Í °°ÀÌ ¼³Ä¡ÇØÁØ´Ù.


yum install gcc gcc-c++ make


ÇÏÁö¸¸ sulinux °¡ ¼³Ä¡µÇ¾îÀÖ´Ù¸é gcc ´Â ¼³Ä¡ ÇÏÁö ¾Ê¾Æµµ µÈ´Ù.


wget https://crossroads.e-tunity.com/downloads/crossroads-stable.tar.gz

tar xvf crossroads-stable.tar.gz

cd crossroads-2.74

make install



¿¡·¯¾øÀÌ Á¤»óÀûÀ¸·Î ¼³Ä¡°¡ ¿Ï·áµÇ¸é ¾Æ·¡ÀÇ ÆÄÀÏÀ» ¸¸µé¾î ÁØ´Ù.



vi /etc/xrctl.xml


<?xml version=<94>1.0<94> encoding=<94>UTF-8<94>?>

<configuration>

<system>

<uselogger>true</uselogger>

<logdir>/tmp</logdir>

</system>

<service>

<name>M-test</name>

<server>

<address>192.168.0.8:7777</address>

<type>tcp</type>

<webinterface>0:8010</webinterface>

<verbose>yes</verbose>

<clientreadtimeout>0</clientreadtimeout>

<clientwritetimout>0</clientwritetimeout>

<backendreadtimeout>0</backendreadtimeout>

<backendwritetimeout>0</backendwritetimeout>

</server>

<backend>

<address>192.168.0.2:80</address>

</backend>

<backend>

<address>192.168.0.4:80</address>

</backend>

</service>

</configuration>



xrctl ¸í·ÉÀ» ÀÌ¿ëÇÏ¿© ¼­ºñ½º¸¦ ½ÃÀÛÇÑ´Ù.


xrctl start

Service Tecmint: started


xrctl status

Service Tecmint: running


7777 port °¡ 80 port ¿¬°áµÉ¼öÀÖµµ·Ï. ÁÖ¼Òâ¿¡ Æ÷Æ®¹øÈ£ ¾øÀÌ Á¢±Ù.

iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 7777


netstat -lnp ¸í·É¾î·Î ¿­·ÁÀÖ´Â Æ÷Æ®¸¦ È®ÀÎÇÑ´Ù.

7777Æ÷Æ®´Â XR Server¿¡¼­ ¼³Á¤ÇÑ Æ÷Æ®À̸ç 8010Æ÷Æ®´Â °ü¸®ÀÚ ÆäÀÌÁö¿ë Æ÷Æ®ÀÌ´Ù.

tcp        0      0 192.168.0.8:7777         0.0.0.0:*                   LISTEN      17081/xr-M-test

tcp        0      0 0.0.0.0:8010                0.0.0.0:*                   LISTEN      17081/xr-M-test



°ü¸®ÀÚ ¸ð´ÏÅ͸µ ÆäÀÌÁö http://¼­¹ö¾ÆÀÌÇÇ:8010 À¸·Î Á¢¼ÓÇÑ´Ù.


Screenshot - 2016³â 01¿ù 22ÀÏ - 11½Ã 25ºÐ 32ÃÊ.png


http://192.168.0.8 ·Î Á¢¼ÓÀ» ÇÏ°ÔµÇ¸é  WEB1, WEB2 ·Î load balancing °¡ ÀÌ·ï Áö°íÀÖ´Ù.


L4 Àåºñ°¡ ¾øÀ»°æ¿ì DNS·Îµå¹ß¶õ½Ì, IPVSADMµîÀ» ÀÌ¿ëÇØ¼­ ¼­¹ö±¸¼ºÀÌ °¡´ÉÇϸç À̹ø¿¡ crossroads·Î ±¸¼ºÇØ º¸¾Ò´Ù.

±â°¡±Þ L4Àåºñ´Â ºñ½ÑÆíÀε¥ ¿ÀǼҽº¸¦ Ȱ¿ëÇØ¼­µµ ·Îµå¹ß¶õ½Ì ±¸¼ºÀÌ °¡´ÉÇÏ´Ù´Â°É ¾Ë¾Æº¸±â À§Çؼ­ ¼³Ä¡ÇÏ¿´´Ù.


¼³Ä¡°¡ ½¬¿ì¸ç, °ü¸®°¡ ½±´Ù´Â ÀåÁ¡ÀÌ ÀÖÁö¸¸, ±×¸¸Å­ ±â´ÉÀº ºÎÁ·ÇÑ ¸éÀÌ ÀÖ´Ù. ´Ü¼ø DNS ¶ó¿îµå·Îºó ¹æ½Ä º¸´Ù´Â ÀÌ°Ô Á»´õ ÀÌÁ¡Àº Àִ°Š°°´Ù.



[¿ø±Û¸µÅ©] : https://www.linux.co.kr/home2/board/subbs/board.php?bo_table=lecture&wr_id=1866


ÀÌ ±ÛÀ» Æ®À§ÅÍ·Î º¸³»±â ÀÌ ±ÛÀ» ÆäÀ̽ººÏÀ¸·Î º¸³»±â ÀÌ ±ÛÀ» ¹ÌÅõµ¥ÀÌ·Î º¸³»±â

 
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