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Re: Is ZooKeeper the right tool for our needs? - Zookeeper - [mail # user]
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...You seed the client with the list of servers to connect to. If you only seed it with one server, it will only connect to one server even if there are others in the quorum, so this should not...
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Author: Camille Fournier,
2012-06-04, 22:23
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Re: Distribution Problems With Multiple Zookeeper Clients - Zookeeper - [mail # user]
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...Again, if you want your clients to perform equal work, you need to balance when they will take jobs with how many jobs they are currently processing. If instance1 is doing 100 jobs and it sh...
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Author: Camille Fournier,
2012-05-25, 17:58
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Re: Distribution Problems With Multiple Zookeeper Clients - Zookeeper - [mail # user]
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...If your code is doing the following: client gets watch notification client immediately tries to grab lock client then puts job in queue to process That's not going to work. You n...
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Author: Camille Fournier,
2012-05-25, 16:48
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Re: Distribution Problems With Multiple Zookeeper Clients - Zookeeper - [mail # user]
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...You can put random sleeps in after you get a notification before you try to grab the lock, or sleeps based on the active job count, to favor workers with no or few jobs in flight. It seems t...
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Author: Camille Fournier,
2012-05-24, 22:22
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Re: How to recover previous watcher & event after "session expired" - Zookeeper - [mail # user]
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...I'm not sure what you mean in question #1. A session expired event generally causes the client to become completely invalid, you could wrap the client in your own logic to record what you we...
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Author: Camille Fournier,
2012-05-18, 22:20
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Re: Distribution Problems With Multiple Zookeeper Clients - Zookeeper - [mail # user]
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...The below is written assuming that all clients are seeing all events, but then they race to get a lock of some sort to do the work, and the same 10 are always getting the lock to do the work...
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Author: Camille Fournier,
2012-05-17, 18:21
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Re: Possible issue with cluster availability following new Leader Election - ZK 3.4 - Zookeeper - [mail # dev]
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...This pretty much matches what I expect. It would be great if you wanted to try your hand at creating a patch and submitting it to the ticket that was created for this problem, but if not, pl...
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Author: Camille Fournier,
2012-05-17, 02:50
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Re: Distribution Problems With Multiple Zookeeper Clients - Zookeeper - [mail # user]
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...I'm not sure what you mean by messages. Are you talking about watches? Can you describe your clients in more detail? Thanks, Camille On Tue, May 15, 2012 at 1:29 PM, Narasimha Ta...
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Author: Camille Fournier,
2012-05-15, 18:20
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Re: Possible issue with cluster availability following new Leader Election - ZK 3.4 - Zookeeper - [mail # dev]
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...Thanks. I just ran a couple of tests to start the debugging. Mark, I don't see a long cluster settle with a mostly empty data set, so I think this might be two different problems. I do see a...
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Author: Camille Fournier,
2012-05-14, 15:30
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Re: Possible issue with cluster availability following new Leader Election - ZK 3.4 - Zookeeper - [mail # user]
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...I will take a look at this soon, have you created a Jira for it? If not please do so. Thanks, C On Thu, May 10, 2012 at 7:20 AM, wrote: ,...
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Author: Camille Fournier,
2012-05-10, 13:57
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