amazon s3 - Proper way to name objects in mass storage service -

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i wonder 1 of personal projects development goes further forward how should organize files ( images, videos, audio files ) uploaded users onto aws's s3/gce cloud storage, i'm used see these kinds of url below;

facebook fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-xft1/v/t1.0-9/11873531_1015...750483_5263546700711467249_n.jpg?oh=b3f06f7e...b7ebf7&oe=56392950&__gda__=1446569890_628...c7765669456 tumblr   36.media.tumblr.com/686b47...e93fa09c2478/tumblr_nt7lnyp3ld1rqbl96o1_500.png twitter  pbs.twimg.com/media/cmimixsv...aczem.jpg

does these random characters carry kind of meaning? or they're "uuids"? there performance/organization issue in using, instance kind of url below?

content.socialnetworkx.com/usery/post/customname_dinosaurs.jpg

edit: let clear i'm considering millions of files.

for s3, see performance considerations page talks object naming. specifically, if plan upload objects @ high rate, should avoid sequentially named objects, can bottleneck.

google cloud storage not have performance bottleneck. see this answer.


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