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Re: Quorum reads on zookeeper - Zookeeper - [mail # dev]
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...Yes. Sure. But Abishek's question is pretty basic so it deserved the basic answer. On Tue, Mar 26, 2013 at 4:19 PM, Alexander Shraer wrote: ...
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Author: Ted Dunning,
2013-03-26, 18:56
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Re: Quorum reads on zookeeper - Zookeeper - [mail # dev]
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...Because the leader is the one who leads all writes, it suffices to catch up with that one node. There is no need to read from a quorum. Another way to look at this is that there ...
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Author: Ted Dunning,
2013-03-26, 08:21
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Re: Consistency in zookeeper - Zookeeper - [mail # user]
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...Yes. Sync doesn't guarantee up to date. It guarantees an ordering. It guarantees that if event A involves a ZK update and if you can guarantee that A occurs before sync, th...
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Author: Ted Dunning,
2013-03-02, 02:03
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Re: Consistency in zookeeper - Zookeeper - [mail # user]
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...That is always true due to pesky things like propagation delay. The idea of before and after are very slippery unless you have and use primitives like sync to force boundaries. O...
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Author: Ted Dunning,
2013-03-02, 02:00
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Re: High availability backend services via zookeeper or TCP load balancer - Zookeeper - [mail # user]
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...I think that Camille's points are well founded. However, I have just had two years experience with the opposite approach in which we use ZK as a way of doing application level load bal...
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Author: Ted Dunning,
2013-02-26, 20:55
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[ZOOKEEPER-1366] Zookeeper should be tolerant of clock adjustments - Zookeeper - [issue]
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...If you want to wreak havoc on a ZK based system just do [date -s "+1hour"] and watch the mayhem as all sessions expire at once.This shouldn't happen. Zookeeper could ...
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http://issues.apache.org/jira/browse/ZOOKEEPER-1366
Author: Ted Dunning,
2013-02-25, 18:19
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Re: async multi requests in the Java client - Zookeeper - [mail # dev]
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...Yeah. It was an oversight. I did the java client and I ten not to think much about the asynchronous interfaces so I never designed anything along those lines. Should...
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Author: Ted Dunning,
2013-02-02, 03:48
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Re: Getting confused with the "recipe for lock" - Zookeeper - [mail # user]
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...On Mon, Jan 14, 2013 at 10:32 PM, Hulunbier wrote: How is a distributed clock going to work if you can't talk to zookeeper?...
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Author: Ted Dunning,
2013-01-17, 11:43
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Re: Getting confused with the "recipe for lock" - Zookeeper - [mail # user]
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...Yes. And in general, you can't have precise distributed lock control. There will always be a bit of slop. So decide which penalty is easier to pay. Do you want "at-mo...
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Author: Ted Dunning,
2013-01-14, 16:05
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Re: Move/Rename api - Zookeeper - [mail # dev]
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...Also, frankly, the multi doesn't otherwise have any way of communicating the contents obtained by get to the subsequent create. This alternative sequence is much cleaner that way. &nbs...
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Author: Ted Dunning,
2013-01-12, 06:52
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