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Re: Ephermal node and notifications for stateless sessions - Zookeeper - [mail # dev]
...In what you're describing, your service creates ephemeral nodes on behalf of its clients, and has to track the clients liveness. You're redoing a lot of the logic ZK would handle for you if ...
   Author: Camille Fournier, 2012-05-08, 14:29
Re: How to replace a zookeeper server ? - Zookeeper - [mail # user]
...Agreed that just restarting is probably the easiest way to go. I'm trying to reason how to do this with a rolling restart without any downtime at all, and I'm not 100% sure that is safely po...
   Author: Camille Fournier, 2012-04-18, 14:04
Re: Input on a change - Zookeeper - [mail # user]
...I've done extensive ZK client testing mostly using mocks with great success. I agree that there's cases when embedding a ZK is probably the easiest way to go, but it is actually much easier ...
   Author: Camille Fournier, 2012-04-16, 18:40
Re: Please vote for ZOOKEEPER-107 to be presented in the Hadoop Summit - Zookeeper - [mail # dev]
...Congrats alex that's great news!  C  On Apr 4, 2012 1:51 AM, "Alexander Shraer"  wrote:  nd-operations...
   Author: Camille Fournier, 2012-04-04, 13:46
Re: Ephemeral deletion order - Zookeeper - [mail # user]
...We associate ephemerals to the session id via a HashSet, so the watches will be triggered in the order items are returned from the HashSet, which is practically, undefined.  C  On ...
   Author: Camille Fournier, 2012-03-20, 02:18
Re: Newbie design question - Zookeeper - [mail # user]
...Run an ensemble of ZK machines. Each job node just needs to use a zookeeper client library to pull jobs down. You do not want to run a large ensemble of ZK nodes unless absolutely necessary....
   Author: Camille Fournier, 2012-03-05, 14:30
Re: methods to figure out what causes an ephemeral node to be deleted - Zookeeper - [mail # user]
...Depends on what you're doing with the clients. I mean, within the same process it's likely that you might want to have only one connection to a given cluster, for reasons like the cause of y...
   Author: Camille Fournier, 2012-03-02, 04:05
Re: sync vs. async vs. multi performances - Zookeeper - [mail # user]
...True. We do have an outstanding jira that Ben filed on a perf problem in 3.4.X that could be contributing: https://issues.apache.org/jira/browse/ZOOKEEPER-1390   On Tue, Feb 14, 2012 at...
   Author: Camille Fournier, 2012-02-14, 18:38
Re: [ANNOUNCE] Sijie Guo is now a bookkeeper committer - Zookeeper - [mail # dev]
...Congrats Sijie!  C  On Mon, Feb 13, 2012 at 3:08 PM, Benjamin Reed  wrote:  ...
   Author: Camille Fournier, 2012-02-13, 20:09
Re: ZooKeeper Memory Usage - Zookeeper - [mail # user]
...That is interesting. Can you send us the stress test so we can investigate? Also, could you possibly run it on the new RC to see if it's still a problem?  Thanks, C  2012/2/9 César...
   Author: Camille Fournier, 2012-02-09, 14:59
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