PEN LOAD BALANCER WITH 2 NODES APACHE WEB SERVER

Transcription

1 Alternate Titles: MYSQL SSL Encryption Based Replication Setup Author: Muhammad Zeeshan Bhatti [LPI, VCP-DCV5, OCP (DBA), MCSA, SUSE CLA, RHCSA-7] ( PEN LOAD BALANCER WITH 2 NODES APACHE WEB SERVER Install Pen to configure Load Balance server. Pen is a light weight simple load balancer. This example shows to configure on the environment like follows (1) rackspace-jon [ ] - Pen Server (2) rackspace-nfs01 [ ] - Web Server#1 (3) rackspace-nfs02 [ ] - Web Server#2 [root@rackspace-jon ~]# yum -y install Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: centos-mirror.magsnet.net * extras: centos-mirror.magsnet.net * updates: centos-mirror.magsnet.net Setting up Install Process epel-release-6-8.noarch.rpm 14 kb 00:00 Examining /var/tmp/yum-root-g_ghvp/epel-release-6-8.noarch.rpm: epel-release-6-8.noarch Marking /var/tmp/yum-root-g_ghvp/epel-release-6-8.noarch.rpm to be installed Resolving Dependencies ---> Package epel-release.noarch 0:6-8 will be installed --> Finished Dependency Resolution Dependencies Resolved ================== Package Arch Version Repository Size ================== Installing: epel-release noarch 6-8 /epel-release-6-8.noarch 22 k Transaction Summary ================== Install 1 Package(s) Total size: 22 k Installed size: 22 k

2 Downloading Packages: Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : epel-release-6-8.noarch 1/1 Verifying : epel-release-6-8.noarch 1/1 Installed: epel-release.noarch 0:6-8 Complete! [root@rackspace-jon ~]# sed -i -e "s/enabled=1/enabled=0/g" /etc/yum.repos.d/epel.repo [root@rackspace-jon ~]# yum --enablerepo=epel install pen Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile epel/metalink 5.7 kb 00:00 * base: centos-mirror.magsnet.net * epel: mirrors.nayatel.com * extras: centos-mirror.magsnet.net * updates: centos-mirror.magsnet.net epel 4.4 kb 00:00 epel/primary_db 6.2 MB 00:03 Setting up Install Process Resolving Dependencies ---> Package pen.x86_64 0: el6 will be installed --> Processing Dependency: libgeoip.so.1()(64bit) for package: pen el6.x86_64 ---> Package GeoIP.x86_64 0: el6 will be installed --> Finished Dependency Resolution Dependencies Resolved ================== Package Arch Version Repository Size ================== Installing: pen x86_ el6 epel 71 k Installing for dependencies: GeoIP x86_ el6 epel 21 M Transaction Summary ================== Install 2 Package(s) Total download size: 21 M

3 Installed size: 42 M Is this ok [y/n]: y Downloading Packages: (1/2): GeoIP el6.x86_64.rpm 21 MB 00:11 (2/2): pen el6.x86_64.rpm 71 kb 00: Total 1.7 MB/s 21 MB 00:12 warning: rpmts_hdrfromfdno: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEY Retrieving key from file:///etc/pki/rpm-gpg/rpm-gpg-key-epel-6 Importing GPG key 0x0608B895: Userid : EPEL (6) <epel@fedoraproject.org> Package: epel-release-6-8.noarch (@/epel-release-6-8.noarch) From : /etc/pki/rpm-gpg/rpm-gpg-key-epel-6 Is this ok [y/n]: y Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : GeoIP el6.x86_64 1/2 Installing : pen el6.x86_64 2/2 Verifying : pen el6.x86_64 1/2 Verifying : GeoIP el6.x86_64 2/2 Installed: pen.x86_64 0: el6 Dependency Installed: GeoIP.x86_64 0: el6 Complete! Lets Start Configure PEN. [root@rackspace-jon ~]# vi /etc/pen.conf ################################### #WRITE BY MUHAMMAD ZEESHAN BHATTI # #Sr. Linux System Administrator # ################################### # log file LOGFILE=/var/log/pen.log # output file of status WEBFILE=/var/www/pen/webstats.html # control port CONTROL= :10080 # max connections

4 MAX_CONNECTIONS=500 # listen port PORT=80 # number of backend servers BACKEND=2 # IP address of a backend SERVER1= :80 # IP address of a backend SERVER2= :80 :wq! Next we can make Stratup Script for Pen. [root@rackspace-jon ~]# vi /etc/rc.d/init.d/pend #!/bin/bash # pend: Start/Stop Pend # chkconfig: # description: Pen is a light weight simple load balancer. # pidfile: /var/run/pen.pid. /etc/rc.d/init.d/functions. /etc/sysconfig/network. /etc/pen.conf LOCKFILE="/var/lock/subsys/pen" PID=/var/run/pen.pid PROG=/usr/bin/pen RETVAL=0 start() { echo -n $"Starting Pend: " SERVER=`grep "^SERVER" /etc/pen.conf cut -d= -f2` daemon $PROG -w $WEBFILE -x $MAX_CONNECTIONS -p $PID -l $LOGFILE -C $CONTROL -S $BACKEND -r $PORT $SERVER RETVAL=$? echo [ $RETVAL -eq 0 ] && touch $LOCKFILE return $RETVAL } stop() { echo -n $"Stopping Pend: " killproc $PROG RETVAL=$? echo

5 [ $RETVAL -eq 0 ] && rm -f $PID $LOCKFILE return $RETVAL } case "$1" in start) start ;; stop) stop ;; status) status pend ;; restart) stop start ;; *) echo $"Usage: $0 {start stop status restart}" exit 1 esac exit $? :wq! Next we can Set Logrotate Setting. [root@rackspace-jon ~]# vi /etc/logrotate.d/pen # this is an example /var/log/pen.log { daily copytruncate compress notifempty missingok postrotate /etc/rc.d/init.d/pend restart 2>&1 > /dev/null true endscript } :wq! [root@rackspace-jon ~]# chmod 755 /etc/rc.d/init.d/pend [root@rackspace-jon ~]# /etc/rc.d/init.d/pend start Starting Pend: [ OK ] [root@rackspace-jon ~]# chkconfig --add pend

6 ~]# chkconfig pend on Verify pen logs ~]# tail -f /var/log/pen.log GET / HTTP/ GET / HTTP/1.1 Great Pen is Runing. WEB SERVER 01 [root@rackspace-nfs01 ~]# yum isntall httpd Loaded plugins: fastestmirror No such command: isntall. Please use /usr/bin/yum --help [root@rackspace-nfs01 ~]# yum install httpd Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.nayatel.com * extras: mirrors.nayatel.com * updates: mirrors.nayatel.com base 3.7 kb 00:00 extras 3.4 kb 00:00 updates 3.4 kb 00:00 updates/primary_db 3.8 MB 00:03 Setting up Install Process Resolving Dependencies ---> Package httpd.x86_64 0: el6.centos will be updated --> Processing Dependency: httpd = el6.centos for package: httpd-devel el6.centos.x86_64 ---> Package httpd.x86_64 0: el6.centos will be an update --> Processing Dependency: httpd-tools = el6.centos for package: httpd el6.centos.x86_64 ---> Package httpd-devel.x86_64 0: el6.centos will be updated ---> Package httpd-devel.x86_64 0: el6.centos will be an update ---> Package httpd-tools.x86_64 0: el6.centos will be updated ---> Package httpd-tools.x86_64 0: el6.centos will be an update --> Finished Dependency Resolution Dependencies Resolved ================== Package Arch Version Repository Size ================== Updating: httpd x86_ el6.centos updates 824 k

7 Updating for dependencies: httpd-devel x86_ el6.centos updates 151 k httpd-tools x86_ el6.centos updates 73 k Transaction Summary ================== Upgrade 3 Package(s) Total download size: 1.0 M Is this ok [y/n]: y Downloading Packages: (1/3): httpd el6.centos.x86_64.rpm 824 kb 00:00 (2/3): httpd-devel el6.centos.x86_64.rpm 151 kb 00:00 (3/3): httpd-tools el6.centos.x86_64.rpm 73 kb 00: Total 1.0 MB/s 1.0 MB 00:00 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Warning: RPMDB altered outside of yum. Updating : httpd-tools el6.centos.x86_64 1/6 Updating : httpd el6.centos.x86_64 2/6 Updating : httpd-devel el6.centos.x86_64 3/6 Cleanup : httpd-devel el6.centos.x86_64 4/6 Cleanup : httpd el6.centos.x86_64 5/6 Cleanup : httpd-tools el6.centos.x86_64 6/6 Verifying : httpd el6.centos.x86_64 1/6 Verifying : httpd-tools el6.centos.x86_64 2/6 Verifying : httpd-devel el6.centos.x86_64 3/6 Verifying : httpd el6.centos.x86_64 4/6 Verifying : httpd-tools el6.centos.x86_64 5/6 Verifying : httpd-devel el6.centos.x86_64 6/6 Updated: httpd.x86_64 0: el6.centos Dependency Updated: httpd-devel.x86_64 0: el6.centos httpd-tools.x86_64 0: el6.centos Complete! [root@rackspace-nfs01 ~]# /etc/init.d/httpd start Starting httpd: httpd: Could not reliably determine the server's fully qualified domain name, using for ServerName [ OK ]

8 we can verify httpd logs to load balning is working. ~]# tail -f /var/log/httpd/access_log [19/Jul/2014:11:09: ] "GET /pen/westatus HTTP/1.1" "-" [19/Jul/2014:11:11: ] "GET / HTTP/1.1" "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:11: ] "GET /icons/powered_by_rh.png HTTP/1.1" " "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:11: ] "GET / HTTP/1.1" "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:12: ] "GET / HTTP/1.1" "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:12: ] "GET / HTTP/1.1" "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:12: ] "GET /icons/powered_by_rh.png HTTP/1.1" " "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:16: ] "GET / HTTP/1.1" "-" [19/Jul/2014:11:17: ] "GET / HTTP/1.1" "-" [19/Jul/2014:11:18: ] "GET / HTTP/1.1" "-" [19/Jul/2014:11:22: ] "GET / HTTP/1.1" "-" "ELinks/0.12pre5 (textmode; Linux; 134x31-2)" Great Working Fine. First Request Pen Server send on Port server1 port 80. WEB SERVER 02 [root@rackspace-nfs02 ~]# yum install httpd Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.nayatel.com * extras: mirrors.nayatel.com * updates: mirrors.nayatel.com base 3.7 kb 00:00 extras 3.4 kb 00:00 updates 3.4 kb 00:00 updates/primary_db 3.8 MB 00:02 Setting up Install Process Resolving Dependencies

9 ---> Package httpd.x86_64 0: el6.centos will be updated --> Processing Dependency: httpd = el6.centos for package: httpd-devel el6.centos.x86_64 ---> Package httpd.x86_64 0: el6.centos will be an update --> Processing Dependency: httpd-tools = el6.centos for package: httpd el6.centos.x86_64 ---> Package httpd-devel.x86_64 0: el6.centos will be updated ---> Package httpd-devel.x86_64 0: el6.centos will be an update ---> Package httpd-tools.x86_64 0: el6.centos will be updated ---> Package httpd-tools.x86_64 0: el6.centos will be an update --> Finished Dependency Resolution Dependencies Resolved ================== Package Arch Version Repository Size ================== Updating: httpd x86_ el6.centos updates 824 k Updating for dependencies: httpd-devel x86_ el6.centos updates 151 k httpd-tools x86_ el6.centos updates 73 k Transaction Summary ================== Upgrade 3 Package(s) Total download size: 1.0 M Is this ok [y/n]: y Downloading Packages: (1/3): httpd el6.centos.x86_64.rpm 824 kb 00:00 (2/3): httpd-devel el6.centos.x86_64.rpm 151 kb 00:00 (3/3): httpd-tools el6.centos.x86_64.rpm 73 kb 00: Total 957 kb/s 1.0 MB 00:01 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Warning: RPMDB altered outside of yum. Updating : httpd-tools el6.centos.x86_64 1/6 Updating : httpd el6.centos.x86_64 2/6 Updating : httpd-devel el6.centos.x86_64 3/6

10 Cleanup : httpd-devel el6.centos.x86_64 4/6 Cleanup : httpd el6.centos.x86_64 5/6 Cleanup : httpd-tools el6.centos.x86_64 6/6 Verifying : httpd el6.centos.x86_64 1/6 Verifying : httpd-tools el6.centos.x86_64 2/6 Verifying : httpd-devel el6.centos.x86_64 3/6 Verifying : httpd el6.centos.x86_64 4/6 Verifying : httpd-tools el6.centos.x86_64 5/6 Verifying : httpd-devel el6.centos.x86_64 6/6 Updated: httpd.x86_64 0: el6.centos Dependency Updated: httpd-devel.x86_64 0: el6.centos httpd-tools.x86_64 0: el6.centos Complete! [root@rackspace-nfs02 ~]# /etc/init.d/httpd start Starting httpd: httpd: Could not reliably determine the server's fully qualified domain name, using for ServerName [ OK ] now we can verify httpd access to 2nd request pen server send on where.. [root@rackspace-nfs02 tmp]# tail -f /var/log/httpd/access_log [19/Jul/2014:11:10: ] "GET /pen/westatus HTTP/1.1" "-" [19/Jul/2014:11:11: ] "GET /icons/apache_pb.gif HTTP/1.1" " "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:11: ] "GET /favicon.ico HTTP/1.1" "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:11: ] "GET /icons/powered_by_rh.png HTTP/1.1" " "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:12: ] "GET /icons/powered_by_rh.png HTTP/1.1" " "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:12: ] "GET /icons/apache_pb.gif HTTP/1.1" " "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/537.36" [19/Jul/2014:11:16: ] "GET / HTTP/1.1" "-" [19/Jul/2014:11:17: ] "GET / HTTP/1.1" "-" [19/Jul/2014:11:18: ] "GET / HTTP/1.1" "-"

11 [19/Jul/2014:11:18: ] "GET / HTTP/1.1" "-" [19/Jul/2014:11:24: ] "GET / HTTP/1.1" "-" 4 Great That's Load Blancer Working Perfectly Fine.