Radio Liferay

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

 

Latest Broadcast

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  http://feeds.feedburner.com/RadioLiferay. 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 radioliferay.com.

Or just download the MP3 here:

download audio file

Average (0 Votes)
The average rating is 0.0 stars out of 5.


Threaded Replies Author Date
Clicked the link to radioliferay.com 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 radioliferay.com 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 https://liferay.com/radio anyways...
Thanks for letting me know
Posted on 4/3/18 1:05 AM in reply to Dante Wang.

Tell others

If you enjoy this podcast and are subscribing on itunes or any other aggregator: Please consider telling them how much you like it - just use their rating system. And consider leaving feedback and comments (at the shownotes, linked for each episode)

Older Episodes

« Back

Radio Liferay Episode 43: Brett Swaim on Application Performance Monitoring

  I'm talking with Brett Swaim, Principal Consultant at Liferay US, on application performance monitoring, horror stories and things to avoid. Brett is dealing with a lot of customers. He's one of Liferay's go-to resources for performance tuning and monitoring. Brett had a presentation on DevOps Best Practices with Liferay, Logstash, Kibana, Elasticsearch, and New Relic  at Devcon (among other symposiums and events). If you missed it or just want the audio summary (both were my motivations to talk to him), we're talking about his experience, using one of the projects (an unnamed one) as an example.

This is a short conversation as we didn't have a lot of time in between different appointments, but we've committed to making this a series of episodes on similar topics - and more in depth.

We talked about

  • Application Lifecycle and Performance monitoring, New Relic  (used as a sample here), Compuware , AppDynamics. Or check the Gartner Quadrant
  • If you can't host in the cloud, you can use the same strategies that Brett is talking about with on-premise solutions
  • How do you know your application is slow?
  • ELK-Stack (Elasticsearch, Logstash and Kibana)
  • adding page load times to Apache Logs
  • It matters where you measure from: Internal network, external network.
  • Default configuration of Liferay - memory, garbage collection and other JVM settings
  • You can have too much memory in your JVM
  • Liferay's Whitepapers have starting points, you shouldn't use them as your final settings.
  • ...and you'll actually need to measure for yourself in order to find your number...
  • CDN setup and its results on high volume site
  • Be proactive. You'll find bottlenecks before your users do.

Follow @RadioLiferay, @Brett_Swaim and @olafk on twitter.

You'll find this episode - and make sure that you don't miss any of the future episodes - by subscribing to  http://feeds.feedburner.com/RadioLiferay. You can also subscribe on itunes.: Just search for "Radio Liferay" or just "Liferay" in the podcast directory. If you like this, make sure to write a review for the podcast directory of your choice - or leave your feedback on www.liferay.com/radio.

Or just download the MP3 here:

download audio file

Average (0 Votes)
The average rating is 0.0 stars out of 5.


No comments yet. Be the first.