You would need to add a 'owner_guid' key to the array. Example: 'owner_guid' => get_loggedin_userid()

what is your favourit one?

( hey cash , thx for answering,which one do u recommend)?

search kaltura

well "izap_videos" is also there. No ?

what about 500000 (0.5 million ) users with 6000 concurrent users? does it support?

what resources you recommend for supporting this ?

thx.

(which server features are really important for larg scale elgg site)

Supporting lots of concurrent users is more about the hardware than anything else. Take a look at this thread - especially the comments by Brett and Justin: http://groups.google.com/group/elgg-development/browse_thread/thread/a9987c59963f2c14

thx cash it is very useful ( i really love the topic)

but for example what is the best hardware and software config for 200,000 users with maximum 100 concurrent users?

for example : CPU/RAM/... other configs.

if any one can help