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From Gustavo Niemeyer <gust...@niemeyer.net>
Subject Re: How to reestablish a session
Date Fri, 19 Nov 2010 20:15:01 GMT
> is_unrecoverable() means exactly that: the session is toast. nothing you do
> will get it back.

Ok, I was wondering about what exactly was unrecoverable indeed.

> zookeeper_init is almost never used with a non-null client_id. the main use
> case for it is crash recovery. i've rarely seen it used, but you can start a
> session, save off the client_id to disk, create ephemerals etc., then if
> your program crashes, you can restart and recover the session and pick back
> up where you left off. in this case we don't worry about the session being
> closed by the previous instance of the program because it crashed. it's
> pretty tricky to use.

Understood.  I agree this is a pretty unique case, and a very hard one
to get right by itself (how to get the app in the proper state to
receive watches after the whole application has crashed?).

-- 
Gustavo Niemeyer
http://niemeyer.net
http://niemeyer.net/blog
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