Accept ENV['MEMCACHE_URL']

[seamusabshere]

hi Mike,

What do you think of accepting all of the configuration params in a single env var?

Redis has started doing it, Rails has done it for a while, and I just submitted a similar patch to mongo-ruby-driver.

Thanks!
Seamus

PS. Added lots of tests, existing tests pass
PPS. I made sure it doesn't do anything if the traditional MEMCACHE_SERVERS env var is set.

[mperham]

Why is this necessary? I don't like it because a URL shouldn't have multiple hosts. I'd like a more specific reason why this type of hack is necessary.

[seamusabshere]

Yah, Mongo has the same issue - I copied their solution.

I like the idea of configuring hosts, ports, and options from URL-like env var for various reasons, not least of which is doing what others are doing, but I agree it's not ideal for multiple hosts.

What it we did

MEMCACHE_SERVERS=[x,y,z]
MEMCACHE_URL="memcached://username:password@multiple:291"

and reserved the word "multiple"?

[mperham]

I still don't see a reason aside from "Mongo does this" and "I like this style of config". multiple just adds another hack into the mix. Sorry but I don't think this is a good idea.

[mperham]

And for the record, Redis / Mongo / RDBMS are usually single servers whereas memcached is frequently multiple servers. A URL maps to a single server well but not to multiple. That's one reason why I don't think this works well.

[maccman]

+1