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From Cee Tee <c.turks...@gmail.com>
Subject Re: Zookeeper client with single address pointing to multiple servers
Date Fri, 27 Sep 2019 17:09:32 GMT
The latest config is available in node /zookeeper/config or via the config 
command in the cli. If you want to know what servers are actually taking 
requests you will have to go over them one by one issuing admin api server 
stats calls.

On 27 September 2019 19:04:35 Shawn Heisey <apache@elyograg.org> wrote:

> On 9/27/2019 9:24 AM, Benjamin Reed wrote:
>> are you making the assumption that you have a single machine that will
>> always be up? that is not a common assumption these days, which is why
>> solr might be resistant to such a change.
>>
>> you can have a single DNS name resolve to multiple IP addresses and
>> ZooKeeper client will use all those addresses if you don't like
>> specifying a list on all the clients.
>
> Is there something in the ZK client API that will allow Solr to ask the
> ZK client for a list of active servers that it is connected to?
>
> Currently Solr just parses the zkHost string to obtain a server list for
> the "ZK status" portion of our admin UI.  This code was written when we
> used ZK 3.4.x ... but because we're now using 3.5.x which has dynamic
> reconfiguration, the list of active servers can be different than the
> zkHost string used when Solr started.
>
> Thanks,
> Shawn




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