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Blogging Roller (Comments)

Updated: 2018-03-14T21:38:52+00:00


Re: Powered by Postgresql and Docker Swarm



No specific issue with MySQL.

I had some inexplicable problems running MySQL under Docker and switched to PostgreSQL in hopes of solving those problems. The change did not really help. I suspect there was some problem in Digital Ocean networking that was causing problems in Docker Swarm. Those problems eventually went away.


Re: Now hosted on DigitalOcean


Nope, I did not setup Apache or Ngnix. Just Tomcat on port 80.

Re: Now hosted on DigitalOcean


"The move was easy, or as easy as setting up OpenJDK 8, Tomcat 7 and MySQL 5.5 can be."

I think you forgot to mention one thing: webserver(apache/nginx)

Re: Powered by Postgresql and Docker Swarm


Any particular issue, you find with mysql ?I think postgresql consume more RAM compare to mysql.


Re: Now hosted on DigitalOcean


Thanks, that's valuable information in helping me judge what I'll probably need.

Re: Now hosted on DigitalOcean


Hi Glen, I'm still happy with DO and still using the $10 plan and just one Droplet, which seems to work fine for my (extremely low :-) level of traffic. I'm using 64-bit Ubuntu. - Dave

Re: Now hosted on DigitalOcean


Hi Dave, I'm thinking of switching my blog's hosting provider and have a few questions about Digital Ocean: (1) are you still happy with DO, (2) was it just one droplet necessary to host both the database and ubuntu/Tomcat? (3) through one year, has the $10 plan held up or you found you needed to upgrade to the $20 plan for performance to be acceptable? (4) What server did you choose -- 32bit or 64bit ubuntu or? Thanks! Glen

Re: Composite Keys in Apache Cassandra


Interesting post - I was fascinated by the information , Does anyone know where my assistant can get access to a fillable a form copy to work with ?

Re: Doesn't anybody have anything bad to say about Groovy?


It does not have compile time checking, so some idiot error is not caught until runtime. Sure they added a static compile annotation, but at that point why not just use Java. Groovy programmers are not disciplined, so they write sloppy code that looks like VB 6, and Groovy lets them get away from it. It is 2016, and Groovy is still dog slow when compared to Java. Pivotal dropped Groovy, so who is their sponsor now? Not going to bank a corporate information system on some toy project with no corporate sponsors and then find out the devs have given up to focus on "Real Life (TM)" -> which happens to be the lamest excuse to stop supporting a project.

Re: Now hosted on DigitalOcean


Thanks Amit, that's nice tip. I don't think manual installation will cause any performance problems.

Re: Now hosted on DigitalOcean


There is also one click install app for roller weblog

(just sign in to bitnami, go to launchpad, and install the roller weblog on digital ocean droplet.)

It is easy then manually installation of roller blog on digital ocean,specially new bee like me.

However I don't know , whether it will make performance issue over manual installation or not?

Re: Roller Strong #12


Here is some example code for displaying the tags of an entry:

Re: Roller Strong #12


Could you please let me know the code to get tags under each entry like you have it
Dave Johnson in Roller 03:27PM Jan 04, 2008 Comments [0]
Tags: blogging ibm roller

Re: Usergrid-Vagrant updated for Usergrid 2


Hi Ganesh,

Thanks for the feedback. I just tried to run the VagrantFile on a different computer and it failed to install.

I'll update this issue once I figure out what is wrong:

Re: Usergrid-Vagrant updated for Usergrid 2


Hi Dave,

Thank you for the work you have done. I followed the mentioned steps and bring up the application but the authentication fails for superuser and password test.

Re: How to create a Roller 4.0 theme, part 1


Hi Ron, this is a custom theme and I haven't (yet) made it available outside of my blog site.

Re: How to create a Roller 4.0 theme, part 1


I like your theme! Is this theme available to anyone, or is it your own custom theme?

Re: Upgraded to latest 5.1.0-SNAPSHOT


I just added some more detail to the page. Hope it helps.

Re: Upgraded to latest 5.1.0-SNAPSHOT


Hello, I'm trying to install roller-jspwiki-plugin to latest Roller, but not yet succeeded. do you have any plan to add some notes or instruction for in the repository?

Re: New Bootstrap based theme


Thanks Pat. I'll trim down that header images because you're right, nobody is going to see the whole thing. That Expires:0 thing must be a Roller bug.

Re: New Bootstrap based theme


It appears all your images are coming down with Expires: 0 on them, so they will always be reloaded. In addition, the banner image is 2483x420 and 1.7MB. Should resize that to 1000px wide, and you can prolly apply some JPEG compression. Also, it appears the image is clipped anyway, so almost no one is going to see those red leaves on the far right.

Re: Composite Keys in Apache Cassandra


This posting is really helpful for who are new to Cassandra.

Thank you for your posting :-D

Re: WIP #6: Feed-based Integration


Hello! What about other WIP chapters:
Advanced Patterns, Authentication Patterns,
Social Patterns?
Are the articles estimated?

Re: The X-rated SocialSite API


I agree Roy Fielding seems to need to work on his communication ( people ) skills

Re: HOWTO: Configure Roller to use Memcached


Hi Dave,
Thanks for your help...

Re: HOWTO: Configure Roller to use Memcached


Hi Dave,
i'm have problem with link download plugin memcached roller, Are you have other link download ??..

Please Help,

Re: HOWTO: Configure Roller to use Memcached


The code from the old "Roller Support" project is now part of the "Roller Extras" project on Google Code. That's where you can find the source for the Roller Memcache plugin there:

Re: Roller 5 and JBoss 6


What happened to the install guide you wrote? I can't seem to get roller running on JBoss 6.0.0 or 6.1.0.

Re: 10 years ago today


[Trackback] Wouldn't you know it, I missed my 10-year blogiversary. 10 years ago yesterday, I wrote my first blog post . This was shortly after reading Dave Johnson's article about Roller . I originally started this blog to share a bunch of tips and tricks I'd...

Re: 10 years ago today


In my knowledge roller is best blogware. I had used roller 3.1 with struts 1.x and roller 4.x with struts 2.x in 2007-2008. I have learned a lot from this blogware.

Re: 10 years ago today


A 10 year long Time well spent I must say. This kind of product matters larger than any tangible benefit you could get.

Just stopped by to say thanks for all your work you have done so far to make this great.

Re: The future of Project SocialSite: Apache?


Simer, I've given up on trying to get Oracle to donate SocialSite as they promised. If you're interested in OpenSocial-based infrastructure, checkout Apache Rave and Apache Shindig. - Dave

Re: The future of Project SocialSite: Apache?


Hey Dave, how is the progress now ?

Re: SocialSite@Apache


That's great Dave. So what's happening with SocialSite now after 3 years ? Is it still in progress ?

Re: The X-rated SocialSite API


Roy Fielding's post is a dictatorial rant showing himself to be petty and egotistical. REST is a great idea, but he should not at all be surprised that many would prefer to cherry pick on his enshrined constraints than wade through pedantic white papers.

There are a lot of broken manuals out there, by his own admission, and he's going to have to accept that his academic dissertation has turned into a buzz word. Just call your API Rest-like, and ignore Fielding.

Re: 10 years ago today


After 2000+ entries on Roller I think I can claim that this is one of the very rare software that has never let me down.

Kudos Dave for all the work and energy you've put into this!

Re: 10 years ago today


the best blogger ever

Re: Tri-XML 2006 presentation


Re: Shindig/Java internals diagram updated


Hi Guys,

I am using a web server and have DNS restrictions for context mapping.

Can we modify



what I need is:


I tried doing this and it shows me Js Uri path invalid, expected prefix: /gadgets/js, is: /app/gadgets/js/shindig-container:rpc

Any help on this? With this I can call the shindig js.

Thanks in advance

Re: Upgraded to Roller 5.1-dev


It might be possible to integrate Roller with 5.0, but I have never tested it. Your best change of getting an answer is on the Roller mailing lists.

Re: Upgraded to Roller 5.1-dev


Hi Dave, I was trying to figure out how to integrate LDAP with roller 5.0. There's almost no documentation on this. Can you please throw some light on this? I am planning to propose roller as a blogger in our IT organization over here. Thanks for your help.


Re: Comments fixed


Hello, I just installed Roller 5.0 and I'm having an issue with the Fauxcoly Theme. Basically in this theme, if I enable comments for an entry, I get the "Comments are closed for this entry." message. If I switch to the "Brushed metal" theme, the comments are enabled for that entrie. Is this a known issue or do you know how I can fix this?

Re: Obama Administration Comes Out Against SOPA, PIPA


This is just terrible....SOPA is the equivalent of curing a headache with a guillotine. It may stop piracy, but it would shut down our economy and unconstitutionally erode our most basic freedoms in the process.

I just hope that everyone realizes how important this is and does their part to save the internet & our economy! is another good video that explains the consequences of SOPA pretty well:

1,000s of more websites have joined the force and went dark today, we need EVERYONES help!!!!

Re: 2012


Thanks Bill. I'll try not to get any stranger. And hey, we need to catch-up on our Trali meetup plan.

Re: 2012


It's wonderful to hear that things are going so well Dave. Please don't be a stranger.

Re: Fork it all


That is one of my goals, but I don't like the idea of targeting one cloud provider. For now I just want to simplify Roller and drastically reduce the number of modules, dependencies and old legacy stuff that is not fun to work with like Struts and Spring.

Re: Fork it all


So I guess you plan to make cloud-ready version for Roller ;-) Which cloud provider will you target?

Re: GSOC 2011: Mobile-enabled themes for Roller


sorry, i just testing now i'm remove the post. sorry :)

Re: GSOC 2011: Mobile-enabled themes for Roller


Looks like another great addition.

Re: Kattare ROCKS!


Kattare have hosted my website for nearly three years in a mixed php/java environment. We have had only two significant outages in the 3 years, and in both cases I was able to reach support quickly and find out what the issue was, and it was quickly resolved. When I cannot reach someone when their offices are closed, I will call the emergency number (when truly needed). In every case someone either answers, or gets back to me within an hour or two (yes, they do not have true 24x7 phone support, but they are on a Linux platform - things seldom go wrong!). Once you reach someone, their service is truly incredible. I am not a programmer, nor do I have a website administrator on staff. Kattare will go out of their way to work through issues with me, including changing my code to close security vulnerabilities when needed. They are never condescending, and will take the time to answer questions when clarification is needed. Having been responsible for several web sites before, their service is the best I have ever experienced. As the COO, it is the best spent $39 a month I have ever authorized. I highly recommend Kattare.