hadoop-zookeeper-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Patrick Hunt <ph...@apache.org>
Subject Re: Guaranteed message delivery until session timeout?
Date Wed, 30 Jun 2010 23:33:53 GMT
On 06/30/2010 09:37 AM, Ted Dunning wrote:
> Which API are you talking about?  C?
>
> I think that the difference between connection loss and session expiration
> might mess you up slightly in your disjunction here.
>
> On Wed, Jun 30, 2010 at 7:45 AM, Bryan Thompson<bryan@systap.com>  wrote:
>
>> I am wondering what guarantees (if any) zookeeper provides for reliable
>> messaging for operation return codes up to a session timeout.  Basically, I

in particular see "timeliness" 
http://hadoop.apache.org/zookeeper/docs/current/zookeeperProgrammers.html#ch_zkGuarantees

>> would like to know whether a zookeeper client can rely on observing the
>> return code for a successful operation which creates an ephemeral (or
>> ephemeral sequential) znode -or- have a guarantee that its session was timed
>> out and the ephemeral znode destroyed.  That is, does zookeeper provide

Any ephemeral node(s) associated with a session will be deleted when the 
session is invalidated (session expiration or client close request).

Patrick

Mime
View raw message