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From Alexander Shraer <shra...@gmail.com>
Subject Re: Any way to get information about cluster in CLI mode
Date Thu, 09 Nov 2017 08:05:18 GMT
In 3.5 there is also the "config" CLI command described here:
https://zookeeper.apache.org/doc/trunk/zookeeperReconfig.html#sc_reconfig_retrieving


Alex

On Tue, Nov 7, 2017 at 11:34 AM, Abraham Fine <afine@apache.org> wrote:

> Hi Pavel-
>
> The ZooKeeper CLI does not have a way to get information about the
> cluster. Although, there are other ways to get that information. You can
> use four letter words
> (https://zookeeper.apache.org/doc/r3.4.10/zookeeperAdmin.
> html#sc_zkCommands)
> or JMX (https://zookeeper.apache.org/doc/r3.4.10/zookeeperJMX.html).
>
> If you are running a version >= 3.5.0 you can use the AdminServer
> (https://zookeeper.apache.org/doc/r3.5.3-beta/zookeeperAdmin.html#sc_
> adminserver),
> which provides the same functionality as four letter words.
>
> Regarding your second question, it is ok to not include all of the nodes
> on the cluster. Just be aware that a client will only be aware of the
> nodes provided in the connection string and will not be able to connect
> if all of the nodes provided are unavailable.
>
> Hope this helps.
>
> Thanks,
> Abe
>
> On Tue, Nov 7, 2017, at 05:58, Pavel Drankov wrote:
> > Hi,
> >
> > I'd like to know is there any way to get information about cluster(amount
> > of nodes e.g.) from Zookeeper CLI? If not what should be used instead?
> >
> > One more question: when providing connectString(comma separated
> > addresses)
> > is that okay to not provide in the string all nodes in a cluster?
> >
> > Best wishes,
> > Pavel
>

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