On Jul 10, 2009, at 4:19 PM, Chris Anderson wrote:

On Fri, Jul 10, 2009 at 11:47 AM, Zachary
Zolton<[email protected]> wrote:
Argh... accidentally hit "send" too soon~!!

Awesome, but since I'm still using 0.9 in production, I'll need to do
something else in the meantime.

Will stale=ok queries remain performant during the re-indexing imposed
by pushing an updated design document?

If that's gonna work for me, I'll probably change my deployment
strategy to the following:
 1) flip the "latency" switch on, in a admin page
 2) now all queries use stale=ok
 3) push our new design documents
 4) "prime" a view for each design document
 5) somehow know when the indexing has finished
 6) flip the "latency" switch off
 7) now queries should go to the freshly-built indexes!

Does anyone see glaring problems with this approach?


You can simplify:

users hitting _design/foo/_view/bar

upload new ddoc to _design/fooX

query view at _design/fooX/_view/bar once to trigger generation

when it's done, http COPY _design/fooX to _design/foo

users querying _design/foo/_view/bar should never see downtime

(let me know if this works it's based on a new feature I just added)

But Zach's looking for something that works in 0.9. And Zach, I'm afraid your plan won't work there. In my experience your stale=ok queries will return 0 rows after you upload the new design doc. Best,

Adam

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