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Inside GOC

Inside GOC. Soichi Hayashi Software Engineer. Hardware. VM Hosts Production (B-town & Indi) Dev & ITB (B-town) LDAP Server (389) Internal.grid.iu.edu VM Install scripts / data Service soft-backup IU Services SVN, Footprint, etc. 1 Service = 1 machine. Backup.

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Inside GOC

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  1. Inside GOC Soichi Hayashi Software Engineer

  2. Hardware • VM Hosts • Production (B-town & Indi) • Dev & ITB (B-town) • LDAP Server (389) • Internal.grid.iu.edu • VM Install scripts / data • Service soft-backup • IU Services • SVN, Footprint, etc..

  3. 1 Service = 1 machine

  4. Backup • Soft Backup (/usr/local/backup @internal) • MySQL Replication • All transitory files are periodically synced • Key configuration files are also synced • Hard Backup • TSM backup system running on internal

  5. VM • Most services are redundant (DNS RR-ed) • Wget access secondary service if one is failing • Load balancing / “Higher” failure tolerance • No HA at this point • “Stemcell” • Default GOC node with DHCP, LDAP, etc • Master Install Script • Service Install Scripts • Download files / configs, then run install script • Pulls softback data from internal.grid

  6. Install Script • Installs everything to setup a certain GOC service • Updated when service machine is updated

  7. Software Development • Nothing fancy.. Really… (sorry!) • PHP/Python for POC, Java for production • MyOSG (PHP, MySQL, Java, Google Chart, Python, jQuery) • OIM (Java, MySQL, DivRep) • GOC Ticket (PHP, SOAP, MySQL, jQuery) • Others stuff in scripting languages

  8. DivRep Framework • Simple user interface framework for Java • Easy to learn, easy to implement • In academic environment, not everyone is software engineer • Minimizes the required knowledge • Build stuff using what they know • Basic Java, Basic HTML, Bit of Servlet • Secret is in “Replacing Content” • Sacrifices bit of responsiveness for • Greatly simplified development / testing

  9. Contact • hayashis@indiana.edu

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