DSpace 5.x on Ubuntu 20.04 and Tomcat 9

[amgc...@gmail.com]

Dear all,

We are upgrading our DSpace VMs to Ubuntu 20.04 and discovered that Tomcat 8 is no longer available in the repositories, only from Tomcat 9.x.

Is anyone currently running DSpace 5.10 in Ubuntu 20.04 on Tomcat 9? It would be useful to know whether it is working OK for you or you've encountered any issues.

Thanks a lot!

Agustina

[Alan Orth]

Hi Agustina,

Yes I suspect you will run into some problems. There were many issues with DSpace 5.x on Tomcat versions beyond 7. As of DSpace 6 you can use Tomcat 8.5, but I haven't heard of anyone using Tomcat 9. For what it's worth, we are running Tomcat 7 on Ubuntu 18.04 via a binary distribution from Apache's website (https://tomcat.apache.org/). I deploy the Tomcat tarball into /usr/local and run it from there. This method works on any Linux distribution. I created systemd service units that run Tomcat and it all works really well actually, and I'm running the latest stable Tomcat 7. I can share more tips and configs if you'd like.

Regards,

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[Paul Münch]

Hello,

as an addition: we run DSpace 6.3 on Debian 10 with Tomcat 9 (from distro package sources).

Kind regards,

Paul
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[amgc...@gmail.com]

Hi Alan, Paul,

Many thanks for the information. Alan, do you have examples of issues people reported / you've experienced?

We've had DSpace 5.10 running on a test environment with Tomcat 9 and have been testing and haven't experienced any issue so far.

Best and many thanks!

Agustina

[Alan Orth]

Dear Agustina,

I looked in the DSpace Jira briefly and found these two issues:

- Failure to set dspace.current.user.id session cookie under Tomcat 8.5.x: https://jira.lyrasis.org/browse/DS-4140

- Stop relying on alphabetical loading of jars in WEB-INF/lib: https://jira.lyrasis.org/browse/DS-2437

- DSpace 6.3 REST-API fail to start on ubuntu 18.04 LTS's tomcat8: https://jira.lyrasis.org/browse/DS-4160

- Meta issue tracking various Tomcat 8 issues: https://jira.lyrasis.org/browse/DS-3092

Some of these are unresolved and some people report they are running on Tomcat 8. I'm surprised to hear that! Good news if so... we need to move with the ecosystem.

Regards,

To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-tech/033ac6aa-435f-4452-9f7b-af4edc3ddf93n%40googlegroups.com.

[amgc...@gmail.com]

Dear Alan,

This is really useful so big thank you. I was aware of the alphabetical loading of jars issue (which I've overcome by using context files and the preloading of the additions jar) but there's still all of the other that I wasn't aware of.

Best,

Agustina