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upgrading zookeeper - Zookeeper - [mail # user]
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...Hi all, We are currently running v3.3.5 and I need to move the ensemble over to new boxes, so while I'm doing that I thought I might as well see if it's feasible to upgrade as well. Re...
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Author: Ishaaq Chandy,
2013-01-04, 05:45
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semaphore recipe - Zookeeper - [mail # user]
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...Hi all, Am looking for a recipe to implement distributed semaphores in zk. Any suggestions? Thanks, Ishaaq...
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Author: Ishaaq Chandy,
2012-10-18, 04:16
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Re: split ZK cluster across DCs? - Zookeeper - [mail # user]
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...Ok, I guess that means we're better of with keeping all the zk nodes in our main DC and letting our app nodes on the remote DC do the hop for ZK comms. Thanks for the input! On 2...
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Author: Ishaaq Chandy,
2012-10-01, 05:50
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split ZK cluster across DCs? - Zookeeper - [mail # user]
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...Hi all, We're in the process of understanding the implications of splitting some of the nodes of our system into a different DC. The DC will be situated in a different continent to be geogra...
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Author: Ishaaq Chandy,
2012-09-28, 04:13
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Re: 2 server cluster? - Zookeeper - [mail # user]
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...Interestingly, we had a server kernel crash a few days ago which meant that we only had two nodes up out of three. Which makes me wonder if three is really a suboptimal cluster size. Perhaps...
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Author: Ishaaq Chandy,
2012-09-12, 03:34
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Re: Error in zookeeper recipes documention of " Leader Election" - Zookeeper - [mail # user]
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...Yes, I mentioned this over a year and a half ago: - http://zookeeper-user.578899.n2.nabble.com/leader-election-td6086870.html - looks like it still hasn't been rectified. Ishaaq ...
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Author: Ishaaq Chandy,
2012-09-11, 01:26
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Re: Input on a change - Zookeeper - [mail # dev]
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...Fair enough, if you think it is an anti-pattern then perhaps you can suggest an alternative that allows one to write tests that are (in descending order of priority): 1. Quick and easy...
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Author: Ishaaq Chandy,
2012-04-16, 16:52
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Re: Input on a change - Zookeeper - [mail # dev]
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...I'd go so far as to say that even the server-code should avoid System.exit. Just because it is "meant" to be a standalone system doesn't mean that code that makes it impossible to embed it s...
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Author: Ishaaq Chandy,
2012-04-16, 03:20
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Re: puzzling BadVersionException - Zookeeper - [mail # user]
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...Ok, false alarm - the problem was a mis-configuration in our code that was causing multiple processes to update that znode whereas only one should have. Apologies for wasting your time...
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Author: Ishaaq Chandy,
2011-10-11, 05:55
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Re: puzzling BadVersionException - Zookeeper - [mail # user]
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...Technically we don't need the contents as we're going to overwrite it anyway, we're just asserting the fact that we're the only one writing to that node. Was just checking if it is a k...
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Author: Ishaaq Chandy,
2011-10-11, 02:09
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