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Re: ephemerals on ZK failure - Zookeeper - [mail # user]
...Camille's response is much more important.  She figured out how your problem can happen.  On Wed, Sep 28, 2011 at 12:49 AM, Ishaaq Chandy  wrote:  ...
   Author: Ted Dunning, 2011-09-28, 00:56
Re: [announce] Accord: A high-performance coordination service for write-intensive workloads - Zookeeper - [mail # user]
...I meant that the performance of ZK in your test using /dev/shm looks about the same as ZK on a hard-disk should look.  What file system is the log file and snapshot on?  On Sun, Se...
   Author: Ted Dunning, 2011-09-26, 11:56
Re: zookeeper cluster spanning datacenters - Zookeeper - [mail # user]
...Wow.  Brutal, but effective.  On Thu, Sep 22, 2011 at 10:26 AM, Fournier, Camille F.  wrote:  ...
   Author: Ted Dunning, 2011-09-22, 19:01
Re: Creating a znode with SEQUENTIAL_EPHEMERAL mode becomes corrupt in case of unstable network - Zookeeper - [mail # dev]
...If you cannot tolerate this sort of situation, then the only solution is typically to avoid sequential ephemerals.  The problem is that in the presence of a flaky network you cannot alw...
   Author: Ted Dunning, 2011-09-21, 14:30
Re: Lock recipes and the lock path - Zookeeper - [mail # user]
...Multi ops might help here although there might be some difficult because all we have is an existence check and not a non-existence check.  One way to hack that is to have each normal fi...
   Author: Ted Dunning, 2011-09-20, 21:17
Re: Distributed locks for global barrier synchronization - Zookeeper - [mail # user]
...Conceptually, it might be good to have two barriers, one for the beginning of a computation and one for the end.  The first barrier is guaranteed not to have the fast finish characteris...
   Author: Ted Dunning, 2011-09-20, 00:52
Re: disconnects and auto renewal - Zookeeper - [mail # user]
...On Wed, Sep 14, 2011 at 8:16 PM, Martin Serrano  wrote:    The issue here is that disconnects can occur for many reasons and are generally rather benign.  For instance, i...
   Author: Ted Dunning, 2011-09-14, 20:46
Re: Zookeeper Memory Leak? - Zookeeper - [mail # user]
...OK.  And how much memory do you have on the machine?  How much memory did you allocate to each of the Zookeeper servers you are running?  What else is on the machine?  Wh...
   Author: Ted Dunning, 2011-09-14, 18:59
Re: Use a RAM database to store zookeeper data - Zookeeper - [mail # user]
...Also keep in mind that it probably won't change throughput all that much.  You should run tests before counting your chickens.  On Fri, Sep 9, 2011 at 7:37 AM, Kapil Thangavleu wro...
   Author: Ted Dunning, 2011-09-09, 16:04
Re: Database support - Zookeeper - [mail # user]
...On Wed, Sep 7, 2011 at 3:09 PM, Uday Subbarayan wrote:   This is trivial to do.  Probably the easiest way would be to use a java web framework of some kind to build a simple access...
   Author: Ted Dunning, 2011-09-07, 22:34
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