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handoff handing about swift

asked 2014-01-05 11:09:15 -0600

DennyZhang gravatar image

updated 2014-01-05 16:17:39 -0600

torgomatic gravatar image

how openstack swift select the hand off node when a primary node is not available? and how to find out all the objects sent to hand off node during the unavailable period? thanks!

a simple case is 

proxy send create object A request to node X,  X is down. request send to hand off node Y, store A in Y there are N such objects in Y now X is up proxy try to read object A, now both X and Y are up

simple way is to contact both X and Y and find out which one owns A. but this need double look up. anyway to save one look up?

and also how to know all the N objects and handover back to X?


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answered 2014-01-06 14:03:20 -0600

smaffulli gravatar image

If reading the code is not enough for you to understand the inner workings of Swift, I'd suggest you to hop on IRC and chat there with developers.

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Asked: 2014-01-05 11:09:15 -0600

Seen: 257 times

Last updated: Jan 06 '14