{"id":156,"date":"2017-04-18T12:34:15","date_gmt":"2017-04-18T04:34:15","guid":{"rendered":"https:\/\/blog.espnlol.com\/?p=156"},"modified":"2017-04-18T12:35:15","modified_gmt":"2017-04-18T04:35:15","slug":"slb-haproxy-mycat%e4%bb%a3%e7%90%86mysql%e5%88%86%e5%ba%93%e5%88%86%e8%a1%a8%ef%bc%8c%e8%af%bb%e5%86%99%e5%88%86%e7%a6%bb","status":"publish","type":"post","link":"https:\/\/blog.espnlol.com\/?p=156","title":{"rendered":"SLB Haproxy Mycat\u4ee3\u7406mysql\u5206\u5e93\u5206\u8868\uff0c\u8bfb\u5199\u5206\u79bb"},"content":{"rendered":"

#\u968f\u7740\u4e1a\u52a1\u589e\u957f\uff0c\u5bf9\u4e8e\u540e\u7aef\u6570\u636e\u5e93\u7684\u538b\u529b\u8d8a\u6765\u8d8a\u5927\uff0c\u5c24\u5176\u662f\u4e2a\u4eba\u4fe1\u606f\u4e2d\u5fc3\u7b49\u8d85\u7ea7\u5927\u8868\uff0c\u8d85\u8fc7\u5343\u4e07\u7ea7\u522b\u7684\u8868\uff0c\u6211\u4eec\u51b3\u5b9a\u901a\u8fc7\u5206\u5e93\u5206\u8868\u6765\u51cf\u8f7b\u538b\u529b\uff0c\u8fd9\u5c31\u9700\u8981\u5728\u524d\u9762\u52a0\u4ee3\u7406\uff0c\u540e\u6765\u8c03\u7814\u5230mycat\u9002\u5408\u6211\u4eec\u7684\u4e1a\u52a1\uff0c\u53c8\u7531\u4e8e\u8dd1\u5728\u963f\u91cc\u4e91\uff0c\u901a\u8fc7slb\u76f4\u63a5\u4ee3\u7406mycat\u4f1a\u62a5\u9519\uff0c\u5c31\u60f3\u5230\u4e86\u901a\u8fc7haproxy\u6765\u505amycat\u7684\u4ee3\u7406\uff0c\u7531\u4e8e\u963f\u91cc\u4e91\u4e0d\u652f\u6301VIP\uff0c\u6240\u4ee5\u53ea\u80fd\u9009\u7528slb\u4ee3\u7406\u4e24\u4e2ahaproxy\uff0c\u518d\u901a\u8fc7haproxy\u4ee3\u7406\u4e24\u4e2amycat\u8fbe\u5230\u9ad8\u53ef\u7528\u8d1f\u8f7d\u5747\u8861\u7684\u67b6\u6784\u3002<\/p>\n

#haproxy\u7684\u4f18\u70b9
\n1\u3001HAProxy\u662f\u652f\u6301\u865a\u62df\u4e3b\u673a\u7684\uff0c\u53ef\u4ee5\u5de5\u4f5c\u57284\u30017\u5c42(\u652f\u6301\u591a\u7f51\u6bb5)\uff1b
\n2\u3001\u80fd\u591f\u8865\u5145Nginx\u7684\u4e00\u4e9b\u7f3a\u70b9\u6bd4\u5982Session\u7684\u4fdd\u6301\uff0cCookie\u7684\u5f15\u5bfc\u7b49\u5de5\u4f5c\uff1b
\n3\u3001\u652f\u6301url\u68c0\u6d4b\u540e\u7aef\u7684\u670d\u52a1\u5668\uff1b
\n4\u3001\u5b83\u8ddfLVS\u4e00\u6837\uff0c\u672c\u8eab\u4ec5\u4ec5\u5c31\u53ea\u662f\u4e00\u6b3e\u8d1f\u8f7d\u5747\u8861\u8f6f\u4ef6\uff1b\u5355\u7eaf\u4ece\u6548\u7387\u4e0a\u6765\u8bb2HAProxy\u66f4\u4f1a\u6bd4Nginx\u6709\u66f4\u51fa\u8272\u7684\u8d1f\u8f7d\u5747\u8861\u901f\u5ea6\uff0c\u5728\u5e76\u53d1\u5904\u7406\u4e0a\u4e5f\u662f\u4f18\u4e8eNginx\u7684\uff1b
\n5\u3001HAProxy\u53ef\u4ee5\u5bf9Mysql\u8bfb\u8fdb\u884c\u8d1f\u8f7d\u5747\u8861\uff0c\u5bf9\u540e\u7aef\u7684MySQL\u8282\u70b9\u8fdb\u884c\u68c0\u6d4b\u548c\u8d1f\u8f7d\u5747\u8861\uff0c\u4e0d\u8fc7\u5728\u540e\u7aef\u7684MySQL slaves\u6570\u91cf\u8d85\u8fc710\u53f0\u65f6\u6027\u80fd\u4e0d\u5982LVS\uff1b
\n6\u3001HAProxy\u7684\u7b97\u6cd5\u8f83\u591a\uff0c\u8fbe\u52308\u79cd\uff1b<\/p>\n

#\u8f6f\u4ef6\u7248\u672c
\n\u5e73\u53f0\uff1a\u963f\u91cc\u4e91
\n\u64cd\u4f5c\u7cfb\u7edf\uff1aCentOS Linux release 7.0.1406 (Core)
\nhaproxy\uff1ahaproxy-1.5.18-3.el7_3.1.x86_64
\nJava\uff1ajava version “1.8.0_112”
\nmycat\uff1aMycat-server-1.6-RELEASE-20161028204710-linux.tar.gz<\/p>\n

#\u67b6\u6784\u56fe<\/p>\n

\"\"<\/a><\/p>\n

#\u8f6f\u4ef6\u7248\u672c
\n\u5e73\u53f0\uff1a\u963f\u91cc\u4e91
\n\u64cd\u4f5c\u7cfb\u7edf\uff1aCentOS Linux release 7.0.1406 (Core)
\nhaproxy\uff1ahaproxy-1.5.18-3.el7_3.1.x86_64
\nJava\uff1ajava version “1.8.0_112”
\nmycat\uff1aMycat-server-1.6-RELEASE-20161028204710-linux.tar.gz<\/p>\n

#\u914d\u7f6eMyCat\u72b6\u6001\u68c0\u67e5\u670d\u52a1\uff08\u5728MyCat\u8282\u70b9\u4e3b\u673a\u4e0a\u914d\u7f6e)
\n#\u589e\u52a0mycat\u670d\u52a1\u7684\u72b6\u6001\u68c0\u6d4b\u811a\u672c\uff0c\u5e76\u5f00\u653e\u76f8\u5e94\u7684\u68c0\u6d4b\u7aef\u53e3\uff0c\u4ee5\u63d0\u4f9b\u7ed9HAProxy\u5bf9MyCat\u7684\u670d\u52a1\u72b6\u6001\u8fdb\u884c\u68c0\u6d4b\u5224\u65ad\u3002\u53ef\u4ee5\u4f7f\u7528xinetd\u6765\u5b9e\u73b0\uff0c\u901a\u8fc7xinetd\uff0cHAProxy\u53ef\u4ee5\u7528httpchk\u6765\u68c0\u6d4bMyCat\u7684\u5b58\u6d3b\u72b6\u6001\u3002\uff08xinetd\u5373extended internet daemon\uff0cxinetd\u662f\u65b0\u4e00\u4ee3\u7684\u7f51\u7edc\u5b88\u62a4\u8fdb\u7a0b\u670d\u52a1\u7a0b\u5e8f\uff0c\u53c8\u53eb\u8d85\u7ea7Internet\u670d\u52a1\u5668\u3002\u7ecf\u5e38\u7528\u6765\u7ba1\u7406\u591a\u79cd\u8f7b\u91cf\u7ea7Internet\u670d\u52a1\u3002xinetd\u63d0\u4f9b\u7c7b\u4f3c\u4e8einetd+tcp_wrapper\u7684\u529f\u80fd\uff0c\u4f46\u662f\u66f4\u52a0\u5f3a\u5927\u548c\u5b89\u5168\u3002xinetd\u4e3alinux\u7cfb\u7edf\u7684\u57fa\u7840\u670d\u52a1\uff09
\n#\u5b89\u88c5xinetd<\/p>\n

yum install xinetd<\/pre>\n
#\u7f16\u8f91mycat_statuswenjan<\/p>\n
vi \/etc\/xinetd.d\/mycat_status\r\nservice mycat_status\r\n{\r\nflags = REUSE\r\n# \u4f7f\u7528\u8be5\u6807\u8bb0\u7684socket_type\u4e3astream\uff0c\u5c01\u5305\u5904\u7406\u65b9\u5f0f\uff0cStream\u4e3aTCP\u6570\u636e\u5305,\u9700\u8981\u8bbe\u7f6ewait\u4e3ano\r\nsocket_type = stream\r\n# \u670d\u52a1\u76d1\u542c\u7aef\u53e3\r\nport = 48700\r\n# \u8868\u793a\u4e0d\u9700\u7b49\u5f85\uff0c\u5373\u670d\u52a1\u5c06\u4ee5\u591a\u7ebf\u7a0b\u7684\u65b9\u5f0f\u8fd0\u884c\r\nwait = no\r\n# \u6267\u884c\u6b64\u670d\u52a1\u8fdb\u7a0b\u7684\u7528\u6237\r\nuser = root\r\n# \u9700\u8981\u542f\u52a8\u7684\u670d\u52a1\u811a\u672c\r\nserver = \/opt\/mycat_status\r\n# \u767b\u5f55\u5931\u8d25\u8bb0\u5f55\u7684\u5185\u5bb9\r\nlog_on_failure += USERID\r\n# \u8981\u542f\u52a8\u670d\u52a1\uff0c\u5c06\u6b64\u53c2\u6570\u8bbe\u7f6e\u4e3ano\r\ndisable = no\r\n}<\/pre>\n
#\u589e\u52a0\u76d1\u6d4b\u811a\u672c<\/p>\n
vi \/opt\/mycat_status\r\n#!\/bin\/bash\r\n#\/opt\/mycat_status.sh\r\n# This script checks if a mycat server is healthy running on localhost.\r\n# It will return:\r\n# \"HTTP\/1.x 200 OK\\r\" (if mycat is running smoothly)\r\n# \"HTTP\/1.x 503 Internal Server Error\\r\" (else)\r\nmycat=`mysql -h 192.168.1.102 -P8066 --connect-timeout=2 -uhaproxy -e \"show databases\" |grep singleusercenter |wc -l`\r\nif [ \"$mycat\" = \"1\" ]; then\r\n\/bin\/echo -e \"HTTP\/1.1 200 OK\\r\\n\"\r\nelse\r\n\/bin\/echo -e \"HTTP\/1.1 503 Service Unavailable\\r\\n\"\r\nfi<\/pre>\n
#\u7ed9\u65b0\u589e\u811a\u672c\u8d4b\u4e88\u53ef\u6267\u884c\u6743\u9650<\/p>\n
chmod 755 \/opt\/mycat_status<\/pre>\n
#\u5728\/etc\/services\u4e2d\u52a0\u5165mycat_status\u670d\u52a1<\/p>\n
vi \/etc\/services\r\nmycat_status 48700\/tcp # mycat_status<\/pre>\n
#\u4fdd\u5b58\u540e\uff0c\u91cd\u542fxinetd\u670d\u52a1<\/p>\n
service xinetd restart<\/pre>\n
#\u9a8c\u8bc1mycat_status\u670d\u52a1\u662f\u5426\u6210\u529f\u542f\u52a8
\n[root@tomcat-test-2 conf]# \/opt\/mycat_status
\nHTTP\/1.1 200 OK<\/p>\n
#haproxy
\n#MyCat\u5b98\u65b9\u63a8\u8350\u4f7f\u7528HAProxy\u505aMyCat\u7684\u9ad8\u53ef\u7528\u8d1f\u8f7d\u5747\u8861\u4ee3\u7406\u3002
\n#HAProxy\u7684\u5b89\u88c5<\/p>\n
yum install haproxy -y<\/pre>\n
#\u7f16\u8f91haproxy<\/p>\n
vi \/etc\/haproxy\/haproxy.cfg\r\n# global\u914d\u7f6e\u4e2d\u7684\u53c2\u6570\u4e3a\u8fdb\u7a0b\u7ea7\u522b\u7684\u53c2\u6570\uff0c\u901a\u5e38\u4e0e\u5176\u8fd0\u884c\u7684\u64cd\u4f5c\u7cfb\u7edf\u6709\u5173\r\nglobal\r\n# \u5b9a\u4e49\u5168\u5c40\u7684syslog\u670d\u52a1\u5668\uff0c\u6700\u591a\u53ef\u4ee5\u5b9a\u4e492\u4e2a\r\nlog 127.0.0.1 local0 info\r\n# \u4fee\u6539HAProxy\u7684\u5de5\u4f5c\u76ee\u5f55\u81f3\u6307\u5b9a\u7684\u76ee\u5f55\u5e76\u5728\u653e\u5f03\u6743\u9650\u4e4b\u524d\u6267\u884c\r\nchroot \/var\/lib\/haproxy\r\n# \u8fdb\u7a0b\u6587\u4ef6\uff08\u9ed8\u8ba4\u8def\u5f84 \/var\/run\/haproxy.pid\uff09\r\npidfile \/var\/run\/haproxy.pid\r\n# \u540cuid\uff0c\u4f46\u8fd9\u91cc\u4f7f\u7528\u7684\u4e3a\u7528\u6237\u540d\r\nuser haproxy\r\n# \u540cgid\uff0c\u4e0d\u8fc7\u8fd9\u91cc\u4e3a\u6307\u5b9a\u7684\u7528\u6237\u7ec4\u540d\r\ngroup haproxy\r\n# \u6307\u5b9a\u542f\u52a8\u7684haproxy\u8fdb\u7a0b\u4e2a\u6570\r\nnbproc 1\r\n# \u8bbe\u5b9a\u6bcf\u4e2ahaproxy\u8fdb\u7a0b\u6240\u63a5\u53d7\u7684\u6700\u5927\u5e76\u53d1\u8fde\u63a5\u6570\r\nmaxconn 4096\r\n# \u5b9a\u4e49\u5f53\u524d\u8282\u70b9\u7684\u540d\u79f0\uff0c\u7528\u4e8eHA\u573a\u666f\u4e2d\u591ahaproxy\u8fdb\u7a0b\u5171\u4eab\u540c\u4e00\u4e2aIP\u5730\u5740\u65f6\r\nnode mycat-haproxy-01\r\n# \u5f53\u524d\u5b9e\u4f8b\u7684\u63cf\u8ff0\u4fe1\u606f\r\ndescription edu-haproxy-01\r\n\r\ndefaults\r\n# \u7ee7\u627fglobal\u4e2dlog\u7684\u5b9a\u4e49\r\nlog global\r\n# mode:\u6240\u5904\u7406\u7684\u6a21\u5f0f (tcp:\u56db\u5c42 , http:\u4e03\u5c42 , health:\u72b6\u6001\u68c0\u67e5,\u53ea\u4f1a\u8fd4\u56deOK)\r\n# tcp: \u5b9e\u4f8b\u8fd0\u884c\u4e8e\u7eaftcp\u6a21\u5f0f\uff0c\u5728\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u4e4b\u95f4\u5c06\u5efa\u7acb\u4e00\u4e2a\u5168\u53cc\u5de5\u7684\u8fde\u63a5\uff0c\r\n# \u4e14\u4e0d\u4f1a\u5bf97\u5c42\u62a5\u6587\u505a\u4efb\u4f55\u7c7b\u578b\u7684\u68c0\u67e5\uff0c\u6b64\u4e3a\u9ed8\u8ba4\u6a21\u5f0f\r\n# http:\u5b9e\u4f8b\u8fd0\u884c\u4e8ehttp\u6a21\u5f0f\uff0c\u5ba2\u6237\u7aef\u8bf7\u6c42\u5728\u8f6c\u53d1\u81f3\u540e\u7aef\u670d\u52a1\u5668\u4e4b\u524d\u5c06\u88ab\u6df1\u5ea6\u5206\u6790\uff0c\r\n# \u6240\u6709\u4e0d\u4e0eRFC\u6a21\u5f0f\u517c\u5bb9\u7684\u8bf7\u6c42\u90fd\u4f1a\u88ab\u62d2\u7edd\r\n# health\uff1a\u5b9e\u4f8b\u8fd0\u884c\u4e8ehealth\u6a21\u5f0f\uff0c\u5176\u5bf9\u5165\u7ad9\u8bf7\u6c42\u4ec5\u54cd\u5e94\u201cOK\u201d\u4fe1\u606f\u5e76\u5173\u95ed\u8fde\u63a5\uff0c\r\n# \u4e14\u4e0d\u4f1a\u8bb0\u5f55\u4efb\u4f55\u65e5\u5fd7\u4fe1\u606f \uff0c\u6b64\u6a21\u5f0f\u5c06\u7528\u4e8e\u76f8\u5e94\u5916\u90e8\u7ec4\u4ef6\u7684\u76d1\u63a7\u72b6\u6001\u68c0\u6d4b\u8bf7\u6c42\r\nmode http\r\n# \u542f\u7528\u65e5\u5fd7\u8bb0\u5f55HTTP\u8bf7\u6c42\r\noption httplog\r\nretries 3\r\n# serverId\u5bf9\u5e94\u7684\u670d\u52a1\u5668\u6302\u6389\u540e,\u5f3a\u5236\u5b9a\u5411\u5230\u5176\u4ed6\u5065\u5eb7\u7684\u670d\u52a1\u5668\r\noption redispatch\r\n# \u524d\u7aef\u7684\u6700\u5927\u5e76\u53d1\u8fde\u63a5\u6570\uff08\u9ed8\u8ba4\u4e3a2000\uff09\r\n# \u5176\u4e0d\u80fd\u7528\u4e8ebackend\u533a\u6bb5\uff0c\u5bf9\u4e8e\u5927\u578b\u7ad9\u70b9\u6765\u8bf4\uff0c\u53ef\u4ee5\u5c3d\u53ef\u80fd\u63d0\u9ad8\u6b64\u503c\u4ee5\u4fbf\u8ba9haproxy\u7ba1\u7406\u8fde\u63a5\u961f\u5217\uff0c\r\n# \u4ece\u800c\u907f\u514d\u65e0\u6cd5\u5e94\u7b54\u7528\u6237\u8bf7\u6c42\u3002\u5f53\u7136\uff0c\u6b64\u6700\u5927\u503c\u4e0d\u80fd\u8d85\u8fc7\u201cglobal\u201d\u6bb5\u4e2d\u7684\u5b9a\u4e49\u3002\r\n# \u6b64\u5916\uff0c\u9700\u8981\u7559\u5fc3\u7684\u662f\uff0chaproxy\u4f1a\u4e3a\u6bcf\u4e2a\u8fde\u63a5\u7ef4\u6301\u4e24\u4e2a\u7f13\u51b2\uff0c\u6bcf\u4e2a\u7f13\u5b58\u7684\u5927\u5c0f\u4e3a8KB\uff0c\r\n# \u518d\u52a0\u4e0a\u5176\u4ed6\u7684\u6570\u636e\uff0c\u6bcf\u4e2a\u8fde\u63a5\u5c06\u5927\u7ea6\u5360\u752817KB\u7684RAM\u7a7a\u95f4\uff0c\u8fd9\u610f\u5473\u7740\u7ecf\u8fc7\u9002\u5f53\u4f18\u5316\u540e \uff0c\r\n# \u6709\u77401GB\u7684\u53ef\u7528RAM\u7a7a\u95f4\u65f6\u5c06\u7ef4\u62a440000-50000\u5e76\u53d1\u8fde\u63a5\u3002\r\n# \u5982\u679c\u6307\u5b9a\u4e86\u4e00\u4e2a\u8fc7\u5927\u503c\uff0c\u6781\u7aef\u573a\u666f\u4e2d\uff0c\u5176\u6700\u7ec8\u6240\u5360\u636e\u7684\u7a7a\u95f4\u53ef\u80fd\u4f1a\u8d85\u8fc7\u5f53\u524d\u4e3b\u673a\u7684\u53ef\u7528\u5185\u5b58\uff0c\r\n# \u8fd9\u53ef\u80fd\u4f1a\u5e26\u6765\u610f\u60f3\u4e0d\u5230\u7684\u7ed3\u679c\uff0c\u56e0\u6b64\uff0c\u5c06\u5176\u8bbe\u5b9a\u4e00\u4e2a\u53ef\u63a5\u53d7\u503c\u653e\u4e3a\u660e\u667a\u7edd\u5bf9\uff0c\u5176\u9ed8\u8ba4\u4e3a2000\r\nmaxconn 2000\r\n# \u8fde\u63a5\u8d85\u65f6(\u9ed8\u8ba4\u662f\u6beb\u79d2,\u5355\u4f4d\u53ef\u4ee5\u8bbe\u7f6eus,ms,s,m,h,d)\r\ntimeout connect 5000ms\r\n# \u5ba2\u6237\u7aef\u8d85\u65f6\r\ntimeout client 50000ms\r\n# \u670d\u52a1\u5668\u8d85\u65f6\r\ntimeout server 50000ms\r\n\r\n# HAProxy\u7684\u72b6\u6001\u4fe1\u606f\u7edf\u8ba1\u9875\u9762\r\nlisten admin_stats\r\n# \u7ed1\u5b9a\u7aef\u53e3\r\nbind 192.168.1.102:48800\r\n#\u7edf\u8ba1\u9875\u9762\r\nstats uri \/admin-status\r\n# \u8bbe\u7f6e\u7edf\u8ba1\u9875\u9762\u8ba4\u8bc1\u7684\u7528\u6237\u548c\u5bc6\u7801\uff0c\u5982\u679c\u8981\u8bbe\u7f6e\u591a\u4e2a\uff0c\u53e6\u8d77\u4e00\u884c\u5199\u5165\u5373\u53ef\r\nstats auth admin:admin\r\nmode http\r\n# \u542f\u7528\u65e5\u5fd7\u8bb0\u5f55HTTP\u8bf7\u6c42\r\noption httplog\r\n\r\n# listen: \u7528\u4e8e\u5b9a\u4e49\u901a\u8fc7\u5173\u8054\u201c\u524d\u7aef\u201d\u548c\u201c\u540e\u7aef\u201d\u4e00\u4e2a\u5b8c\u6574\u7684\u4ee3\u7406\uff0c\u901a\u5e38\u53ea\u5bf9TCP\u6d41\u91cf\u6709\u7528\r\nlisten mycat_servers\r\n# \u7ed1\u5b9a\u7aef\u53e3\r\nbind 192.168.1.102:3309\r\nmode tcp\r\n# \u8bb0\u5f55TCP\u8bf7\u6c42\u65e5\u5fd7\r\noption tcplog\r\n# \u662f\u5426\u5141\u8bb8\u5411server\u548cclient\u53d1\u9001keepalive\r\noption tcpka\r\n# \u540e\u7aef\u670d\u52a1\u72b6\u6001\u68c0\u6d4b\r\noption httpchk OPTIONS * HTTP\/1.1\\r\\n192.168.1.102:48700\\ www\r\n# \u5b9a\u4e49\u8d1f\u8f7d\u5747\u8861\u7b97\u6cd5\r\nbalance roundrobin\r\nserver mycat_01 10.44.173.30:8066 check port 48700 inter 2000ms rise 2 fall 3 weight 10\r\nserver mycat_02 10.51.92.145:8066 check port 48700 inter 2000ms rise 2 fall 3 weight 10\r\n# \u683c\u5f0f\uff1aserver <name> <address>[:[port]] [param*]\r\n# serser \u5728\u540e\u7aef\u58f0\u660e\u4e00\u4e2aserver\uff0c\u53ea\u80fd\u7528\u4e8elisten\u548cbackend\u533a\u6bb5\u3002\r\n# <name>\u4e3a\u6b64\u670d\u52a1\u5668\u6307\u5b9a\u7684\u5185\u90e8\u540d\u79f0\uff0c\u5176\u5c06\u4f1a\u51fa\u73b0\u5728\u65e5\u5fd7\u53ca\u8b66\u544a\u4fe1\u606f\u4e2d\r\n# <address>\u6b64\u670d\u52a1\u5668\u7684IPv4\u5730\u5740\uff0c\u4e5f\u652f\u6301\u4f7f\u7528\u53ef\u89e3\u6790\u7684\u4e3b\u673a\u540d\uff0c\u4f46\u8981\u5728\u542f\u52a8\u65f6\u9700\u8981\u89e3\u6790\u4e3b\u673a\u540d\u81f3\u54cd\u5e94\u7684IPV4\u5730\u5740\r\n# [:[port]]\u6307\u5b9a\u5c06\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\u53d1\u5f80\u6b64\u670d\u52a1\u5668\u65f6\u7684\u76ee\u6807\u7aef\u53e3\uff0c\u6b64\u4e3a\u53ef\u9009\u9879\r\n# [param*]\u4e3a\u6b64server\u8bbe\u5b9a\u7684\u4e00\u7cfb\u5217\u53c2\u6570\uff0c\u5747\u4e3a\u53ef\u9009\u9879\uff0c\u53c2\u6570\u6bd4\u8f83\u591a\uff0c\u4e0b\u9762\u4ec5\u8bf4\u660e\u51e0\u4e2a\u5e38\u7528\u7684\u53c2\u6570\uff1a\r\n# weight:\u6743\u91cd\uff0c\u9ed8\u8ba4\u4e3a1\uff0c\u6700\u5927\u503c\u4e3a256\uff0c0\u8868\u793a\u4e0d\u53c2\u4e0e\u8d1f\u8f7d\u5747\u8861\r\n# backup:\u8bbe\u5b9a\u4e3a\u5907\u7528\u670d\u52a1\u5668\uff0c\u4ec5\u5728\u8d1f\u8f7d\u5747\u8861\u573a\u666f\u4e2d\u7684\u5176\u4ed6server\u5747\u4e0d\u53ef\u4ee5\u542f\u7528\u6b64server\r\n# check:\u542f\u52a8\u5bf9\u6b64server\u6267\u884c\u76d1\u63a7\u72b6\u6001\u68c0\u67e5\uff0c\u5176\u53ef\u4ee5\u501f\u52a9\u4e8e\u989d\u5916\u7684\u5176\u4ed6\u53c2\u6570\u5b8c\u6210\u66f4\u7cbe\u7ec6\u7684\u8bbe\u5b9a\r\n# inter:\u8bbe\u5b9a\u76d1\u63a7\u72b6\u6001\u68c0\u67e5\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u5355\u4f4d\u4e3a\u6beb\u79d2\uff0c\u9ed8\u8ba4\u4e3a2000\uff0c\r\n# \u4e5f\u53ef\u4ee5\u4f7f\u7528fastinter\u548cdowninter\u6765\u6839\u636e\u670d\u52a1\u5668\u7aef\u4e13\u9898\u4f18\u5316\u6b64\u4e8b\u4ef6\u5ef6\u8fdf\r\n# rise:\u8bbe\u7f6eserver\u4ece\u79bb\u7ebf\u72b6\u6001\u8f6c\u6362\u81f3\u6b63\u5e38\u72b6\u6001\u9700\u8981\u68c0\u67e5\u7684\u6b21\u6570\uff08\u4e0d\u8bbe\u7f6e\u7684\u60c5\u51b5\u4e0b\uff0c\u9ed8\u8ba4\u503c\u4e3a2\uff09\r\n# fall:\u8bbe\u7f6eserver\u4ece\u6b63\u5e38\u72b6\u6001\u8f6c\u6362\u81f3\u79bb\u7ebf\u72b6\u6001\u9700\u8981\u68c0\u67e5\u7684\u6b21\u6570\uff08\u4e0d\u8bbe\u7f6e\u7684\u60c5\u51b5\u4e0b\uff0c\u9ed8\u8ba4\u503c\u4e3a3\uff09\r\n# cookie:\u4e3a\u6307\u5b9aserver\u8bbe\u5b9acookie\u503c\uff0c\u6b64\u5904\u6307\u5b9a\u7684\u503c\u5c06\u4f1a\u5728\u8bf7\u6c42\u5165\u7ad9\u65f6\u88ab\u68c0\u67e5\uff0c\r\n# \u7b2c\u4e00\u6b21\u4e3a\u6b64\u503c\u6311\u9009\u7684server\u5c06\u4f1a\u88ab\u540e\u7eed\u7684\u8bf7\u6c42\u6240\u9009\u4e2d\uff0c\u5176\u76ee\u7684\u5728\u4e8e\u5b9e\u73b0\u6301\u4e45\u8fde\u63a5\u7684\u529f\u80fd\r\n# maxconn:\u6307\u5b9a\u6b64\u670d\u52a1\u5668\u63a5\u53d7\u7684\u6700\u5927\u5e76\u53d1\u8fde\u63a5\u6570\uff0c\u5982\u679c\u53d1\u5f80\u6b64\u670d\u52a1\u5668\u7684\u8fde\u63a5\u6570\u76ee\u9ad8\u4e8e\u6b64\u5904\u6307\u5b9a\u7684\u503c\uff0c\r\n# \u5176\u5c06\u88ab\u653e\u7f6e\u4e8e\u8bf7\u6c42\u961f\u5217\uff0c\u4ee5\u7b49\u5f85\u5176\u4ed6\u8fde\u63a5\u88ab\u91ca\u653e\r\n# \u6ce8\u610f\uff1a\u591a\u8282\u70b9\u90e8\u7f72\u65f6node \u3001 description\u7684\u503c\u8981\u505a\u76f8\u5e94\u8c03\u6574\u3002<\/pre>\n
#\u542f\u52a8\u670d\u52a1<\/p>\n
systemctl start haproxy.service<\/pre>\n
#\u7f16\u5199haproxy\u5065\u5eb7\u5b88\u62a4\u8fdb\u7a0b\u907f\u514d\u7a0b\u5e8f\u5047\u6b7b\u9020\u6210\u7684\u95ee\u9898<\/p>\n
#\u7f16\u5199haproxy_status\u811a\u672c<\/p>\n
vi \/opt\/haproxy_status\r\nwhile :\r\ndo\r\nmycat=`mysql -h 192.168.1.102 -P3309 --connect-timeout=2 -uhaproxy -e \"show databases\" |grep singleusercenter |wc -l`\r\ntime=`date +%F_%T`\r\nif [ \"$mycat\" = \"1\" ]; then\r\n\/bin\/echo -e \"HTTP\/1.1 200 OK at $time\" >> \/tmp\/haproxy_status.log\r\nelse\r\nif [ \"$mycat\" = \"1\" ]; then\r\n\/bin\/echo -e \"HTTP\/1.1 200 OK at $time\" >> \/tmp\/haproxy_status.log\r\nelse\r\n\/bin\/echo -e \"HTTP\/1.1 503 Service Unavailable at $time\" >> \/tmp\/haproxy_status.log\r\nsystemctl stop haproxy\r\nsleep 600\r\nfi\r\nfi\r\nsleep 2\r\ndone<\/pre>\n
#\u8d4b\u4e88\u6267\u884c\u6743\u9650<\/p>\n
chmod 755 \/opt\/haproxy_status<\/pre>\n
#\u5b89\u88c5screen<\/p>\n
yum install screen -y<\/pre>\n
#\u6267\u884c\u5b88\u62a4\u8fdb\u7a0b<\/p>\n
screen\r\n\/opt\/haproxy_status &\r\n\r\n<\/pre>\n
#\u5f00\u542frsyslog\u7684haproxy\u65e5\u5fd7\u8bb0\u5f55\u529f\u80fd<\/p>\n
#\u9ed8\u8ba4\u60c5\u51b5\u4e0b haproxy\u662f\u4e0d\u8bb0\u5f55\u65e5\u5fd7\u7684\uff0c\u5982\u679c\u9700\u8981\u8bb0\u5f55\u65e5\u5fd7\uff0c\u8fd8\u9700\u8981\u914d\u7f6e\u7cfb\u7edf\u7684syslog\uff0c\u5728linux\u7cfb\u7edf\u4e2d\u662frsyslog\u670d\u52a1\u3002syslog\u670d\u52a1\u5668\u53ef\u4ee5\u7528\u4f5c\u4e00\u4e2a\u7f51\u7edc\u4e2d\u7684\u65e5\u5fd7\u76d1\u63a7\u4e2d\u5fc3\uff0crsyslog\u662f\u4e00\u4e2a\u5f00\u6e90\u5de5\u5177\uff0c\u88ab\u5e7f\u6cdb\u7528\u4e8eLinux\u7cfb\u7edf\u4ee5\u901a\u8fc7TCP\/UDP\u534f\u8bae\u8f6c\u53d1\u6216\u63a5\u6536\u65e5\u5fd7\u6d88\u606f\u3002
\n#\u5b89\u88c5rsyslog<\/p>\n
yum install rsyslog -y<\/pre>\n
#\u914d\u7f6ersyslog<\/p>\n
#$ModLoad imudp \u548c $UDPServerRun 514\u524d\u9762\u7684 # \u53bb\u6389\r\n$ModLoad imudp\r\n$UDPServerRun 514\r\n#\u5141\u8bb8514\u7aef\u53e3\u63a5\u6536\u4f7f\u7528UDP\u548cTCP\u534f\u8bae\u8f6c\u53d1\u8fc7\u6765\u7684\u65e5\u5fd7<\/pre>\n
#\u521b\u5efahaproxy.conf\u63a5\u53d7\u65e5\u5fd7<\/p>\n
vi \/etc\/rsyslog.d\/haproxy.conf\r\nlocal0.* \/var\/log\/haproxy.log<\/pre>\n
#\u542f\u52a8rsyslog\u670d\u52a1<\/p>\n
systemctl start rsyslog.service<\/pre>\n
#\u914d\u7f6e\u7cfb\u7edf\u5185\u6838\u7684IP\u5305\u8f6c\u53d1\u529f\u80fd<\/p>\n
vi \/etc\/sysctl.conf\r\nnet.ipv4.ip_forward = 1<\/pre>\n
#\u4f7f\u914d\u7f6e\u751f\u6548<\/p>\n
sysctl -p<\/pre>\n
#\u91cd\u542fhaproxy\u5e76\u8bbe\u7f6e\u5f00\u673a\u542f\u52a8<\/p>\n
systemctl restart haproxy.service\r\nsystemctl enable haproxy.service<\/pre>\n
 <\/p>\n
 <\/p>\n
<\/h4>\n","protected":false},"excerpt":{"rendered":"
#\u968f\u7740\u4e1a\u52a1\u589e\u957f\uff0c\u5bf9\u4e8e\u540e\u7aef\u6570\u636e\u5e93\u7684\u538b\u529b\u8d8a\u6765\u8d8a\u5927\uff0c\u5c24\u5176\u662f\u4e2a\u4eba\u4fe1\u606f\u4e2d\u5fc3\u7b49\u8d85\u7ea7\u5927\u8868\uff0c\u8d85\u8fc7 … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"class_list":["post-156","post","type-post","status-publish","format-standard","hentry","category-25"],"_links":{"self":[{"href":"https:\/\/blog.espnlol.com\/index.php?rest_route=\/wp\/v2\/posts\/156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.espnlol.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.espnlol.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.espnlol.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.espnlol.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=156"}],"version-history":[{"count":4,"href":"https:\/\/blog.espnlol.com\/index.php?rest_route=\/wp\/v2\/posts\/156\/revisions"}],"predecessor-version":[{"id":165,"href":"https:\/\/blog.espnlol.com\/index.php?rest_route=\/wp\/v2\/posts\/156\/revisions\/165"}],"wp:attachment":[{"href":"https:\/\/blog.espnlol.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.espnlol.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.espnlol.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}