This page contains information about how demo.dspace.org server is setup/configured. This demo.dspace.org server is managed jointly by the DSpace Committer Team. Any Committer can request server access.
If major issues occur or something needs to be installed requiring root access, contact Tim Donohue or "sysadmin AT duraspace DOT org"
General Server Setup / Info
Here's an overview of how everything is setup on the 'demo.dspace.org' server:
- The server is currently running on DuraSpace's Amazon EC2 account with the following configurations:
- Amazon AMI (EBS Image), currently m3.medium
- Ubuntu Linux 16.04 LTS server (64-bit)
- Puppet Setup scripts: https://github.com/DSpace-Labs/puppet-dspace-demo
- All DSpace requirements/software are installed using our puppet-dspace module: https://github.com/DSpace/puppet-dspace
- Puppet Setup script which installs these prerequisites: https://github.com/DSpace-Labs/puppet-dspace-demo/blob/master/manifests/site.pp
- Open JDK 8
- Tomcat is configured to run on port 8080
- Apache web server
- Forwards all requests to Tomcat via AJP
- DSpace Source:
- DSpace Install:
'dspace' user account
- The 'dspace' user has FULL 'sudo' access on system.
- The 'dspace' user's
~/bin/includes various useful scripts
Who to Contact
Only a DuraSpace employee can do the following:
- Recreate the server (using Puppet scripts). NOTE: The instructions for recreating the server are in the https://github.com/DSpace-Labs/puppet-dspace-demo repository README
- Upgrade Ubuntu to next version of Ubuntu
- Create Snapshots of server volumes and restore server based on one of those Snapshots
Getting SSH access to demo.dspace.org
This is how you provide a DSpace Committer with command-line access to this server.
- Have Committer generate an SSH Key on their computer and send you their PUBLIC Key.
- Append their PUBLIC Key on the end of the 'dspace' user's
NOTE: Please add a comment regarding who's key this is, so that it makes it easier to clean up later on. For example:
They should now be able to connect as follows:
Updating / Upgrading DSpace installation
To ensure we are consistently updating DSpace in the same manner, please perform the following steps when updating any configuration
or making any customization to DSpace.
(If you have updates/suggestions, please let us know – we can change these processes, but we just need to make sure we are all consistently following the same general steps)
Make all Configuration/File Changes in '~/dspace-src/' FIRST
~/dspace-src/ folder is a Git clone of the DSpace-demo GitHub Repository: https://github.com/DSpace-Labs/demo.dspace.org
- This is a public fork of the main DSpace/DSpace GitHub Repository, with a few small tweaks specific to our Demo site
In this local Git repository, we are running off of a branch named "demo". You can see all the branches by running
Changes that you wish to keep should be committed to this "demo" branch.
At any one time, you can compare this 'demo' branch to any version of DSpace. For example, to compare 'demo' to DSpace 5.5 run:
WARNING: If you make direct config edits to ~/dspace/config/ you can expect that they may be overwritten in future (unless you also copy them to ~/dspace-src/dspace/config/)
You have been warned! Again, if your changes don't make it to ~/dspace-src/ then THEY WILL BE LOST during the next update!
Upgrade DSpace Source
If you are upgrading to the next stable version of DSpace, you can use
git merge to help you merge all changes.
NOTE: You should make sure to pay close attention to whether any Conflicts occurred. If so, you will need to resolve them manually.
Resolving Conflicts: Here are some hints on how to resolve / manage conflicts encountered during a merge:
If there were a lot of conflicts and you just want to accept the "master" or tagged version (and overwrite any local changes), you can use:
If you need to completely delete a file that caused conflict, just use:
If you need to abort an in-process merge that had conflicts, just run:
Update the Splash Page and News
These contain the DSpace version number, and should match what we are running! See Managing Website Content below.
Push out Updates
WARNING: this overwrites existing configs in
Double check everything still looks to be working.
Also make sure your changes made it to
~/dspace/ (and that you didn't remove previous settings, especially configs)
An easy way to double check config changes is to do a 'diff' of the latest dspace.cfg with the most recent '.old' one.
Commit your changes to "demo" branch
Assuming your changes are already over in
~/dspace-src/ this is easy...
DSpace Tweaks (for Demo site)
Disabling the editing of all EPerson Email addresses
In May/June 2015, we ran into several scenarios where users were logging in as a demo Admin account and promptly changing the email address associated with that account. In order to avoid this, it is HIGHLY recommended to disable editing of email addresses on demo.dspace.org.
Here's how it's done:
In Mirage2, the following jQuery can be added to the ~/dspace-src/dspace-xmlui-mirage2/src/main/webapp/xsl/core/page-structure.xsl:
In JSPUI, the following jQuery can be added to the ~/dspace-src/dspace-jspui/src/main/webapp/layout/header-submission.jsp:
Managing Website Content
Website / Splash page
- Tomcat is configured to run on port 8080
- Apache runs on port 80, and forwards all requests to Tomcat via AJP
- DSpace Webapps are run from
~/dspace/webapps/(configured in Tomcat's context fragments in
- The main "splash" page (http://demo.dspace.org) is served by Tomcat and is located at:
- Its content is also managed via the GitHub Repository at: https://github.com/DSpace-Labs/demo.dspace.org-site
- Info on updating & pushing to GitHub can be found in the README at https://github.com/DSpace-Labs/demo.dspace.org-site
- The JavaDocs pages (http://demo.dspace.org/javadocs/) are static pages served by Tomcat and are located at:
- These JavaDocs can be regenerated at any time by running the following (from the root source directory,
- If you're generating javadoc of a snapshot version of DSpace, the above would fail. Use
mvn install javadoc:aggregate && rm -rf ~/.m2/repository/org/dspaceinstead.
- The "javadoc:aggregate" command generates a single set of javadocs which aggregate the APIs of all DSpace modules. See http://maven.apache.org/plugins/maven-javadoc-plugin/plugin-info.html
- The resulting javadoc is in
[dspace-source]/target/site/apidocs. Upload it to
- NOTE: We've encountered some oddities with the results when this is run from demo.dspace.org itself (the resulting CSS isn't applied). So, it's recommended to run this command from your local machine.
- It worked fine on 2 machines running Java 6, Maven 2.2.1 and 3.0.3, respectively. It didn't work on demo, which was running Java 7 and Maven 2.2.1.
- Later, it worked fine on demo running Java 8u181 and Maven 3.3.9.
Starting / Stopping DSpace (and related services)
The 'dspace' user can easily start/stop PostgreSQL and Tomcat using the corresponding service scripts:
Log file locations
Important Cron Jobs
Obviously, you can get the latest information on the existing Cron jobs by logging into the demo.dspace.org server and running:
However, here's a brief overview of a few of the more important Cron jobs.
Reset DSpace Content (based on AIPs) every Saturday
EVERY SATURDAY NIGHT (currently at 23:59 UTC), all existing DSpace content is automatically REMOVED and reset to the AIPs located at
This is controlled by the
~/bin/reset-dspace-content script (source code in GitHub)
This is a BASH script that essentially does the following:
- Stops Tomcat
- Backs up current DB & Assetstore to
~/tmp/data-backup(This backup is performed just in case something goes wrong and we
need to quickly restore DSpace.)
- Deletes existing DB & Assetstore
- Resets DSpace back to a 'fresh_install' state (by restoring database tables, sequences, registries, and initial Admin user acct)
- Imports the AIPs in
~/AIP-restoreinto DSpace as default content (This also autocreates the demo EPeople and Groups)
- SEE README in ~/AIP-restore/ for info on updating these AIPs
- Refreshes all Indexes (Lucene/DB & Discovery) & Restarts Tomcat
- A log of the entire 'reset' process is written to
How to update the set of demo AIPs
The set of demo AIPs are all stored in the
To update these AIPs, you must use the DSpace AIP Backup & Restore tools as described at:
AIP Backup and Restore
You can regenerate / update these AIPs by doing the following:
- Install a fresh (empty) copy of DSpace on your local server.
- Configure it to have the same handle prefix as demo.dspace.org (handle prefix: 10673) & setup an initial administrative user (ideally 'firstname.lastname@example.org' which is the Demo Administrator on demo.dspace.org).
Download the existing AIPs from this directory, e.g.
Use the downloaded AIPs to "restore" content to your local server's empty DSpace, e.g.
- Update your DSpace's content as you see fit (adding/removing/changing objects)
Export a fresh set of AIPs, by performing a full SITE export e.g.
- The above example just exports ORIGINAL & LICENSE bundles into AIPs, and also exports user passwords into AIPs (so that they can also be restored).
Upload those newly updated AIPs to demo.dspace.org, e.g.
- NOTE: Before putting them on demo.dspace.org, you may want to do your own test restore using these AIPs, just to ensure there are no issues.
How to share AIPs for public download
At this time, sharing AIPs is not automated. It's also not currently possible to share them from the default
~/AIP-restore/ location, so this is a bit of a "temporary hack" that needs fixing in the future.
First, copy all the AIPs to a shareable location. Below, we chose
Next, update the Apache configuration for demo.dspace.org to provide access to that shareable location:
Reload Apache and test it out:
Assuming everything works, here's a
wgetcommand that can be used to download the AIPs to a local computer
Reset "News" sections every night
Since the "News" sections are editable via the JSPUI, there is a cron job that automatically resets them each night.
It's a rather simple cron job that just copies the original "news-*" files from the
Reset Demo User Passwords every hour
Since people have been known to change our demo user passwords on this demo.dspace.org server, we now reset them to the default password every hour.
This functionality is just a simple set of SQL UPDATE commands that are run via the
kompewter IRC bot
The kompewter IRC bot is on the server at
It's source code is managed in GitHub at https://github.com/DSpace-Labs/kompewter
Starting / Stopping kompewter
To start kompewter just run:
(NOTE: The "nohup" command ensures that kompewter will keep running even after you log off the server.)
Slack / IRC integration bot
As we now have a DSpace Slack setup, this bot integrates our DSpace Slack with IRC (per the below configuration). It allows messages to be sent from Slack to IRC and vice versa.
Currently, this installation is NOT automated via Puppet (That should be changed at some point)
We are using this tool: https://github.com/ekmartin/slack-irc
Installation is rather simple:
Per the documentation at https://github.com/ekmartin/slack-irc , we just need a valid JSON config file to configure this bot.
Here's the current config (save it to
This configuration ensures messages on #duraspace IRC are also on the Slack #dev-mtg channel (and vice versa). It also ensures messages on #dspace IRC are also on the Slack #irc channel (and vice versa). Finally, it also authenticates as the registered "DSpaceSlackBot" account with Freenode, which ensures the account is trusted (i.e. won't be blocked). This account is managed by Tim Donohue, so contact him for more info.
Starting / Stopping slack-irc
To start the slack-irc bot just run:
(NOTE: The "nohup" command ensures that slack-irc will keep running even after you log off the server.)
Java Profiling using YourKit
Remote Profiling Using YourKit
Full instructions available at: http://www.yourkit.com/docs/95/help/profiling_j2ee_remote.jsp
In order to locate potential memory issues in DSpace, we've installed YourKit on demo.dspace.org at
It can be accessed remotely so that we can perform various Java profiling tasks.
On your local computer:
- Download & Install YourKit Profiler. Put in your open source license key (available to all DSpace Committers).
- Open up YourKit, select "Connect to remote application..." option.
- Point it at "demo.dspace.org:10001" and start doing some profiling!
- If it's not running, start it using ~/yjp/bin/yjp.sh
- If needed, logs are in ~/.yjp/log/
Let's Encrypt free DV X.509 certificate
TODO: add to puppet scripts (install package, pull configuration from S3, create cron file)
First-time installation will validate domain ownership and generate a private key. Any subsequent certificate requests will reuse the private key. The
/etc/letsencrypt directory should be backed up in private S3 storage (TODO).
The certificate is issued for 3 months. The script that checks for renewals needed is running twice a day on a random minute from
Papertrail log viewer
The logs of demo can be consulted in a webUI through https://papertrailapp.com/systems/demo/events. Ask on #dev for the credentials if you want to have a look.
Installation of this viewer required a SyslogAppender appender to be added to /dspace/config/log4j.properties