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Running DSpace: Technical overview, lessons learned, workflows and essential skills
 

Running DSpace: Technical overview, lessons learned, workflows and essential skills

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Presented by Alan Orth and Sisay Webshet at Dspace Ethiopia Interest Group Meeting and Training, Addis Ababa, Ethiopia, 28 October – 1 November 2013.

Presented by Alan Orth and Sisay Webshet at Dspace Ethiopia Interest Group Meeting and Training, Addis Ababa, Ethiopia, 28 October – 1 November 2013.

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    Running DSpace: Technical overview, lessons learned, workflows and essential skills Running DSpace: Technical overview, lessons learned, workflows and essential skills Presentation Transcript

    • Running Dspace Technical overview, lessons learned, workflows and essential skills Alan Orth and Sisay Webshet Dspace Ethiopia Interest Group Meeting Addis Ababa, 28 October 2013
    • DSpace Instances One server, two instances... CGSpace DSpace Test Hosted at CGNET in California, USA
    • Instance Overview CGSpace (cgspace.cgiar.org) ● “Production” ● Should always be up & stable ● Is the “reference” implementation DSpace Test (dspacetest.cgiar.org) ● “Development” ● Changes to style, functionality, DSpace etc are tested here first ● Sometimes wiped clean
    • Two DSpaces, one server!
    • Living With Legacy Decisions... CGSpace and DSpace Test on the same machine… ● In 2010 CGSpace had a fraction of the content, users, etc, so it didn’t affect the running of the system ● Not true anymore! ● 100s of 1000s of monthly views... ● Large assetstore, log files, RAM / CPU usage, etc
    • (Near) Future Plans Separate instances on Amazon EC2! cgspace.cgiar.org dspacetest.cgiar.org
    • CGSpace Code Is 100% Open Source code is on github: github.com/ilri/DSpace
    • How The Code Is Organized Production code lives in the 3_x-prod branch; this is stable, tested code. Updates (if any) come from the development branch on Monday. Development code lives in the 3_x-dev branch; this is semi-tested code! Changes throughout the week.
    • “Social Coding” on GitHub ● Anyone can “fork” the code repository to their own GitHub account ● Source code repositories can share code via “pull requests” ● Developers can comment on changes and discuss issues GitHub “OctoCat”
    • “Pull request” from @mire introducing the CUA module
    • All changes were not created equal...
    • Workflow Lessons Learned ● Sending changes is good, but leaves the burden of merging to me ● Sending patches is better, but requires sender to know how to generate them ● Sending a pull request is best, but requires sender knows how to use git, branches, etc
    • Go Forth And Fork! … and send pull requests!
    • Scenario: Create A New Theme Creating an XMLUI theme for a new community Create community in DSpace (ie, 10568/38440) Add custom metadata (ie, cg.subject.bioversity) Add custom submission template (input-forms.xml) Copy existing XMLUI theme (ie ILRI) as a reference, and customize for center-specific metadata, look & feel, etc 5. Update search & browse indexes (dspace.cfg) 6. Update XMLUI config for new theme (xmlui.xconf) 1. 2. 3. 4.
    • DSpace Sysadmin Crashcourse DSpace... ● is a Java application ● builds using maven and ant ● uses PostgreSQL as a database backend ● stores PDFs and other blobs in the filesystem (“assetstore”) ● runs best on Linux
    • CGSpace Stack Apache httpd Apache Tomcat PostgreSQL Bitstreams Debian GNU/Linux
    • Why Not Use Tomcat Directly? Any sysadmin will tell you that working with Tomcat is a joy*. Surprisingly**, these things are annoying in Tomcat: ● Virtual hosting ● SSL ● redirects ● caching and manipulating headers *for some definitions of “joy” **not surprising, actually
    • Essential Technical Skills Managing a DSpace instance doesn’t require “programmers” or “developers” (but it doesn’t hurt). Mainly, you’ll need: ● Linux experience (Debian, CentOS, Ubuntu) ● Administration experience (web servers, log files, cron jobs, security) ● Software development concepts (git, patches, branching/merging)
    • Better lives through livestock ilri.org The presentation has a Creative Commons licence. You are free to re-use or distribute this work, provided credit is given to ILRI.