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Re: lost ZK events across datacenters - Zookeeper - [mail # user]
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...Ben, Some details below. The call that sets the watcher simple calls getChildren with watcher flag set to true. The triggering change is that one of the child nodes (which is eph...
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Author: Jun Rao,
2011-06-03, 08:40
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Re: lost ZK events across datacenters - Zookeeper - [mail # user]
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...All my clients were on different machines. 2 of them got the watcher fired about the same time. The third one never got the watcher triggered. Thanks, Jun On Wed, Jun 1, 20...
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Author: Jun Rao,
2011-06-01, 22:14
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Re: lost ZK events across datacenters - Zookeeper - [mail # user]
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...The most important feature that I rely zkclient on is to hide zkConnectionLoss exception (just block and retry when connection is in sync mode again). I assume that quite a few applications ...
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Author: Jun Rao,
2011-06-01, 21:05
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Re: lost ZK events across datacenters - Zookeeper - [mail # user]
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...I am using the zkclient package (https://github.com/sgroschupf/zkclient.git). The watcher code seems reasonable. Basically, each watcher event is first added to a queue. A separate event thr...
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Author: Jun Rao,
2011-06-01, 20:08
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lost ZK events across datacenters - Zookeeper - [mail # user]
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...Hi, I have a setup where multiple ZK clients are sitting in a different datacenter from the ZK server. All clients registered the same child watcher on a path. However, when the childr...
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Author: Jun Rao,
2011-06-01, 18:40
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Re: PurgeTxnLog - Zookeeper - [mail # user]
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...OK, figure this out. It seems that the utility only takes relative path, not the absolute path. Jun On Mon, Apr 25, 2011 at 5:22 PM, Jun Rao wrote: ...
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Author: Jun Rao,
2011-04-26, 00:43
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PurgeTxnLog - Zookeeper - [mail # user]
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...Hi, We got a lot of log data and snapshots accumlated in ZK (version 3.3.3). I tried to run the following command to clean things up. However, nothing gets deleted. Did I do anything w...
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Author: Jun Rao,
2011-04-26, 00:22
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list watchers from ZK shell - Zookeeper - [mail # user]
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...Hi, Is there a way to list all watchers and their creators from the ZK shell? Thanks, Jun...
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Author: Jun Rao,
2011-04-19, 00:52
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ZK upgrade - Zookeeper - [mail # user]
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...Hi, How should I upgrade ZK from 3.2.1 to 3.3.x? Does ZK support rolling upgrade? Does ZK automatically migrate the on-disk structures? Thanks, Jun...
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Author: Jun Rao,
2011-02-14, 15:53
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Re: ephemeral node not deleted after client long gone - Zookeeper - [mail # user]
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...I saw the following entries on the session. It seems that the client that created the ephemeral node has already been closed. Also, I was using ZK 3.2.1 server and ZK 3.3.0 client. Any issue...
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Author: Jun Rao,
2011-02-11, 22:49
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