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Going through the untriaged Nova bugs, and there are a few on a similar
pattern:

Nova operation in progress.... takes a while
Crosses keystone token expiration time
Timeout thrown
Operation fails
Terrible 500 error sent back to user

It seems like we should have a standard pattern that on token expiration
the underlying code at least gives one retry to try to establish a new
token to complete the flow, however as far as I can tell *no* clients do
this.

I know we had to add that into Tempest because tempest runs can exceed 1
hr, and we want to avoid random fails just because we cross a token
expiration boundary.

Anyone closer to the clients that can comment here?

	-Sean

-- 
Sean Dague
http://dague.net