Archive for March, 2013

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AEM 5.6 and Timewarp

March 31, 2013

Adobe CQ (AEM) comes with this handy feature called timewarp – in a nutshell, it allows you to see the page in different versions by adding a timewarp cookie or timewarp parameter to your page. Just go to the sidekick and go to the version tab. Expand the timewarp tab. select a date and time and click go (or timewarp to see a modal with a history of the edits.

If you want to access an older version of the page directly, add ?timewarp=(long) as a time to your URL and you should see the older version.

Starting with 5.6, you may want to exit the timewarp before you do anything else. Going back to the new touch UI projects screen while in the timewarp mode throws an exception (the timewarp is by default set as a cookie and filters the repository accordingly, so this may start to fail).

I’d say Adobe has some work to do here – somewhere along the lines of ‘let’s do the timewarp again’

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AEM (Adobe CQ) Performance on different Hardware

March 29, 2013

The other day we ran into a bit of a problem because of storage speed in one of the environments we were setting up CQ5.5 in. It was a VMWare environment with 10GB of ram, 8 CPUs and lots of storage configured for it – however, the storage was configured over NFS. The performance of the storage was very poor until the team mounted the NFS storage on the host operating system and configured a vmdk file as storage for the VM. Now CQ is running fast and smooth.

CQ has a handy tool in the Felix Console to measure disk speed. If I run it on my own computer I get the following output (you can find it at http://localhost:4502/system/console/diskbenchmark , click start, wait for a couple of minutes and then hit stop):

Operation Type Operations Per Second for Block Sizes
256 B 512 B 1 KB 2 KB 4 KB 8 KB 16 KB
write 297 569 1105 2858 16175 15915 14990
read 290468 285605 276539 265199 245365 194254 125938
write 16654 16955 16485 16294 16280 15868 15232
read 289515 285575 274960 260759 246216 192033 126604
write 16687 16481 16507 16076 16243 15812 15494
read 288390 282803 273778 263346 241982 192439 123351
write 16609 16585 16484 16630 16418 15811 15149
read 287073 282856 272822 263683 242169 192894 126518
write 16477 16370 16294 16412 16225 16034 15048

Note: Java7, CQ5.5, Sony Vaio with Intel i7-3682CM @2.2GHz, Win8 wirth a hard disk performance index of 5.9

I ran the same test in AEM5.6, the numbers are about the same. The disk speed test does not test true repository speed but the actual speed of reading and writing files from java to the directory that is specified.

Well, I shared my numbers – please share yours (I’ll post more as well soon) – Would be great to get a nice long list of different servers, developer boxes, os’s, etc compiled here.

Some more numbers

MacBook Air 1.7GHz Intel Core i5, 60GB Solid State Disk
Operation Type Operations Per Second for Block Sizes
256 B 512 B 1 KB 2 KB 4 KB 8 KB 16 KB
write 5097 6752 10098 13113 14913 14868 14419
read 522298 498729 479957 444013 386557 283406 175218
write 15102 15159 14810 14671 15023 14763 14234
read 519715 496583 480427 443306 383299 281750 176323
write 13236 14569 14770 15120 14971 14816 14390
read 524098 498535 484440 442899 389182 284113 175112
write 15251 14893 14755 14784 15086 14784 14429
read 528208 502405 484314 442884 387000 284755 174811
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David and Cedric’s Top 10 Adobe AEM Features from Summit 2013

March 16, 2013

If you have not seen the recurring ‘Experience Manager Top 10’ talk (well used to be CQ Top 10) from the Adobe Summit or if you want to watch it again you can do so by following this link to Adobe TV

http://tv.adobe.com/embed/1181/16516/

Traditionally, the top 10 were presented by David Nuescheler, this year he is passing on the torch only doing an introduction and presenting the first item and then Cedric Huesler, the Senior Product Manager of the tool is taking over.

Here’s the list of the top 10 items:

  1. Touch (all new user interface)
  2. Launches
  3. Creative Cloud
  4. Responsive Design
  5. Communities
  6. Commerce
  7. Articles & DPS
  8. EMail Publishing
  9. Target Everyting
  10. Landing Pages

Have you explored any of these features? If yes, why don’t you leave a comment here and let everybody know what your experience has been?

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Setting up a Clean Instance of CQ5.6 without the Samples

March 13, 2013

While installing CQ5.6 I found a log entry that sounded quite interesting:

SlingSettingsServiceImpl Active run modes: [ author, crx2, crx3mongo, samplecontent ]

apparently (not sure if this is new in CQ5.6) you can pass in a runmode during installation to trigger different features of CQ to be installed or not.

Running CQ the first time with these arguments will not install the geometrixx samples at all and to me seems to be the better approach than installing CQ first and then uninstalling the geometrixx samples as suggested in various places and the security guide for CQ.

java -jar cq.5.6.jar -r nosamplecontent

After this installation, your copy of CQ (AEM) will be almost clean of any geometrixx atrifacts (there are however some geometrixx-media users that are left over, they are probably not contained in the example geometrixx code.

Other Available Options

It seems the following options can be set for installation purposes (one from each row, if non is selected the first one is taken):

  • author | publish
  • crx2 | crx3
  • crx3mongo | crx3h2
  • samplecontent | nosamplecontent

I gave the crx3 | crx3mongo runmodes a try but did not really get a working version of AEM out of that combination – I am sure there will be some sort of documentation from Adobe about those features soon 🙂

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Adobe Summit 2013 Breakout Session Videos

March 7, 2013

In case you did not make it to Adobe Summit this year to hear more about CQ and all the other products they offer you can watch the breakout sessions at https://summit.adobe.com/online2013.html for free.

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Access to Adobe CQ Package Share without Adobe CQ

March 5, 2013

I meant to post this a while back. We did an install of Adobe CQ in an environment that’s pretty restrictive with internet access and thus we were not able to connect to the Adobe CQ Packageshare website from within CQ. After a bit of digging we found the following URL:

http://dev.day.com/packageshare/packages.html

after logging in you are able to download any of the packages on that site without accessing it through CQ.

Hope this will help others as well.