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Web Infrastructure Team

Our team manages web infrastructure & hardware for efficient services, including virtual machines, software, and databases, with a focus on optimization and automation.

linus-jenkins
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Web Infrastructure Team

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  1. Web Infrastructure Team • Our Services and our Hardware • Owen Le Blanc

  2. Outline • Services we provide • Hardware we manage • Virtual machines • Software • Managing it all

  3. AFS Xen External Hosting Virtual Hosts Minor services Development Summary of Services • Web services • Portal service • Information • Publication • Load balancing • Databases

  4. 20 servers 2 servers 3 servers? 3 servers + devel + test 1 server Web Services • Apache • Software ESD • Tomcat • Content Managemt • User admin (ssl)

  5. 8 servers 9 servers 2 servers Portal service • Web servers • Development • Mysql

  6. 1 server 2 servers 1 server 2 servers 2 servers Information Services • Anonymous FTP • rsync • ntp • Request Tracker • Web Log processing, anal

  7. 3 servers 2 servers Publication Services • ssh • sftp • ftp

  8. 2 servers Load Balancing • ipvsadm • heartbeat, pacemaker • ssh

  9. 9 servers 2 servers 3 servers 1 server Databases, etc • MySQL • Postgres • Subversion • CVS

  10. 3 servers 12 servers 2 servers 2 servers Andrews File System • Kerberos servers • Database servers • File servers • special file servers • Backup servers

  11. 49 machines 4 machines 2 machines 1 machine Xen • Xen hosts (ours) • Portal • EPS • Manc City Art G

  12. 2 servers 1 server 1 server 1 server 1 server External Servers (1) • Ensembl • Phoenix • Access Grid Recording service • NCESS • EMU

  13. 1 server 3? servers 6 servers 2 servers 1 server 1 server External Servers (2) • MACE • Azura Group • EPS Intranet • Equella project • Genetic Research • Museum java devel

  14. 1 servers 1 server 2 servers Virtual Hosts • Email development • Physics web site • Status web site

  15. 1 server 1 server 1 server 1 server 1 server 1 server Minor Services • AFS mail • Web Farm mail • tftp • administration • cron jobs • mirroring

  16. 4 servers 3 servers 2 servers 1 server 2 servers 2 servers Development • Compilation • Testing • AFS • Java • MySQL • Xen • IPVS/Heartbeat

  17. 11 49 16 5 18 99 machines Machines • Development • Xen servers • Other servers • Portal servers • External (!xen) • Total

  18. Virtual Hosts • 151 virtual hosts under Xen: • 1 fully virtualised

  19. Disk Format (Xen, standalone)

  20. Software • Debian lenny,squeeze • ipvsadm, heartbeat, pacemaker • Xen, LVM • OpenAFS • Closely parallel machines • Rapid deployment • “Daily” security patching

  21. Documentation (1) • Mirrors of package documents • http://orgs.man.ac.uk/documentation/ • Wiki • http://wiki.manchester.ac.uk/websupport/ • My web site • http://people.man.ac.uk/~zlsiial/docs/ • Software and configuration area • /afs/mcc.ac.gb/common/config/

  22. Documentation (2) • System backup area • /afs/mcc.ac.gb/ftp/.private/misc/backups/ • admin folder • .../web/farm/Admin/ • Email • various places in /afs/

  23. Documentation (2) • System backup area • /afs/mcc.ac.gb/ftp/.private/misc/backups/ • admin folder • .../web/farm/Admin/ • Email • various places in /afs/

  24. Managing It All • Database of machines • Automate as much as possible • Use standard versions • As little local compilation as possible • As little locally written software as possible • Revise and rethink

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