load balancing webserver
TRANSCRIPT
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LOAD BALANCING
WEB SERVER
Rachmad Tsalaatsa
System Administrator Univ Brawijaya
KOLAM Komunitas Linux Arek Malang
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LOAD BALANCING
DNS- Roundrobin- GSLB (Global Server Load Balancing)
Layer 3 atau 4- Piranha- UltraMonkey
Layer 7- Generic : HAProxy, UltraMonkey-L7- HTTP(S): Nginx, PD, Pen, Apache- Mysql : SQLRelay, MysqlProxy
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LOAD BALANCING
Proses dan teknologi yang mendistribusikan beban kedalam beberapa server
Mengurangi beban kerja setiap server sehingga tidakada server yang overload
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LOAD BALANCING
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LOAD BALANCING
Load balancer diletakkan di antara client dan server
Load balancer menampung trafik yang datang danmembaginya ke dalam request-request individualkemudian menentukan server mana yang menerimarequest tersebut
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LOAD BALANCING
Keuntungan
1.Scalability
2.HighAvailability
3.Manageability
4.Security
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LINUX VIRTUAL SERVER (LVS)
Teknologi pada OS Linux yang dapat membangunserver yang memiliki kinerja dan ketersediaan tinggimenggunakan sekumpulan server.
IP VirtualLDirectorReal Server
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LINUX VIRTUAL SERVER (LVS)
Teknik untuk mendistribusikan paket-paket IP kemasing-masing node atau server
1.NAT
2.Direct Routing3.IP Tunneling
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LINUX VIRTUAL SERVER (LVS)
NAT
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LINUX VIRTUAL SERVER (LVS)
DIRECT
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LINUX VIRTUAL SERVER (LVS)
Algoritma
1.Round Robin
2.Weighted Round-Robin
3.Least-connections
4.Weight Least-connections
5.Locality Based Least Connection
6.Destination Hashing
7.Source Hashing
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LINUX VIRTUAL SERVER (LVS)
Aplikasi
1.Piranha
2.Httpd
3.Ipvsadm
4.Pulse
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LINUX VIRTUAL SERVER (LVS)
LABS
1.VirtualBox
2.OS Linux CentOS
3.Virtual OS :1 LDirector2 RealServer
4.IP Virtual
IP LDirectorIP Real Server 1IP Real Server 2
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LINUX VIRTUAL SERVER (LVS)
LDIRECTOR
1. #yum install piranha
2. #piranha-passwd
3. #/etc/init.d/httpd start
4. #/etc/init.d/piranha-gui start
5. net.ipv4.ip_forward = 1
6. #/etc/init.d/pulse start
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LINUX VIRTUAL SERVER (LVS)
RealServer
1. #yum install httpd
2. #ip a a ip_virtual dev eth0 label eth0:0
Akses
1. http://ip_address:3636
2. username: piranhapassword: piranha-passwd
http://ip_address:3636/http://ip_address:3636/ -
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TERIMAKASIH
Rachmad TsalaatsaSystem Administrator Univ Brawijaya
KOLAM Komunitas Linux Arek Malang