Radio Liferay

Welcome to Radio Liferay, a peek into what is going on in Liferay from the people doing it themselves.


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Radio Liferay Episode 60: Performance and Permissions with Preston Crary

  An episode on the "Per" things: Performance and Permissions. I spoke to Preston Crary, who amazingly was not mad at me for losing an earlier recording.

We're talking about these (and more) topics

  • We open with the attention to detail that's required for working on performance tuning and some short conversation about this topic.
  • Sadly, there's not often a single silver bullet, but many areas of dust.
  • Sometimes the fastest code is not the most optimal
  • Continuing with Preston's work on Permissions:
  • ResourceBlock is deprecated, and there's an easy migration path
  • The usecase for Resources, ResourcePermission, and ResourceBlocks (as they're not at all visible on the UI)
  • Preston's way through Liferay from Support to working on the topics that he's now working on
  • The new API for Permissions - and the documentation is also done already (as of me writing this article, not yet published, but available on github - should be a matter of days or hours)
  • Should you implement your own permission system? (and how the answer to this question might change in 7.1)
  • Upgrades are being performance tuned. I smell a future episode coming up. Paging the team that is working on this area
  • The remarkable memory savings that refactoring the UserBag introduced
  • What happend during login
  • Passwords are PBKDF2WithHmacSHA1/160/128000 hashed, a deliberately expensive password hashing algorithm.
  • LPS-75747 and an update to my hardball question: Document Library's default.xml is still in core, can't be updated through a module, just through an ext.

Follow @RadioLiferay, Preston and me (@olafk) on twitter.

You'll find this episode - and make sure that you don't miss any of the future episodes - by subscribing to You can also subscribe on itunes.: Just search for "Radio Liferay" or just "Liferay" in the podcast directory. Make sure to write a review for the podcast directory of your choice - or find everything about Radio Liferay on

Or just download the MP3 here:

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Threaded Replies Author Date
Clicked the link to and Chrome... Dante Wang March 28, 2018 8:37 PM
Whoops, sorry - Something went wrong in the... Olaf Kock April 3, 2018 1:05 AM

Clicked the link to and Chrome warned me about invalid cert...
Posted on 3/28/18 8:37 PM.
Whoops, sorry - Something went wrong in the reconfiguration of that server. Non-https works for now, it's just a forwarder to anyways...
Thanks for letting me know
Posted on 4/3/18 1:05 AM in reply to Dante Wang.

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Radio Liferay Episode 28: James Falkner

 Please welcome a return guest, James Falkner, Liferay's Community manager. I got him on to talk about the changes in the upcoming symposium's structure, but we continued with conversations about a lot of topics he also mentioned in his previous Community Roundup as well as a brave move that I'd like to tease here: He gives us the definitive release date for Liferay 6.2 - so remember: you've heard it first on Radio Liferay

Some more keywords from the conversation:

  • Change to symposiums: This year we split some of the symposiums into business (Liferay Portal Solutions Forum) and technical (Developer Conference) events - especially in Europe.
  • LPSF 24. September in Frankfurt
  • DevCon (8.) 9.+10. October in Berlin
  • LPSF 7. November in UK
  • Symposium October US/SF
  • Symposium 16.+17. October Spain
  • Call for Paper open or soon to be opened for SF, Spain, Berlin: Help us by submitting long before the deadline
  • Unconference style, agenda finding
  • Last Milestone (M6) has been published just before we recorded
  • BugSquad is on again, finding those pesky bugs in the current milestone releases - thanks a lot to the bugsquad team for the help
  • Work done by the Community Verifier Team
  • Edward Gonzalez' role to pick up fixes that have been submitted without targetting a specific engineer (and shoutouts to Juan Fernandez, Cynthia Wilburn, Ed Chung)
  • Ideation
  • The "exit strategy" for ideas: Get it into the portal or create an App for Marketplace.
  • Project Learn, an e-learning platform, recently graduated to be a marketplace app (lookup name)
  • We're using my fabulous podcasting plugin as a means to describe how to publish an app on the marketplace (it's currently on its way)
  • Marketplace now has roughly 70 apps published by independent developers.
  • Marketplace App Contest: Participate and win one of 25 iPad minis and a trip to one of the symposiums or Liferay events of your choice - anywhere in the world.
  • various birthday coincidences
  • Community Leadership Team
  • Pointer back to the motivation thread, linked from Radio Liferay episode 1
  • Community Blogging
  • IRC: #liferay on freenode

Follow James, RadioLiferay or me on twitter

Thank you again to Auphonic for improving the sound quality dramatically. Unfortunately there are a few dropouts during the recording that even auphonic couldn't rescue, but they're minimal.

You'll find this episode - and make sure that you don't miss any of the future episodes - by subscribing to You can also subscribe on itunes.: Just search for "Radio Liferay" or just "Liferay" in the podcast directory.

download audio file

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