>   and store this in the Solr config.
I don't think it's ever possible.

On Sat, Sep 28, 2019 at 2:02 PM Jörn Franke <jornfra...@gmail.com> wrote:

> Some food for thoughts: if zookeeper can dynamically reconfigure then Solr
> must be able to do so as well. Let’s assume you start with an ensemble
> server1,server2,server3 and store this in the Solr config. During lifetime
> of the Solr service it is changed to server4,server5,server6. Now Solr
> service is restarted and it cannot connect anymore to zookeeper as
> server1,server2,server3 do not exist anymore.
> I propose to have a dynamic config file / Solr service to record those
> changes in a local file that is available after restart .
>
> > Am 27.09.2019 um 19:33 schrieb Shawn Heisey <apa...@elyograg.org>:
> >
> > On 9/27/2019 10:39 AM, LEE Ween Jiann wrote:
> >> FYI, solr-zookeeper-headless resolves to 3 different IPs. And
> getZkRawResponse() method only connects to 1 of the 3.
> >> My suggestion is the following:
> >> - List<String> zookeepers =
> Arrays.asList(zkHost.split("/")[0].split(","));
> >> + List<String> zookeeperHosts =
> Arrays.asList(zkHost.split("/")[0].split(","));
> >> + final List<String> zookeepers = new ArrayList<>();
> >> + for (String host : zookeeperHosts) {
> >> +   // resolve host and add all IP:port to zookeepers array
> >> + }
> >> Let me know your thoughts.
> >
> > I think that Solr should query the ZK client for information about what
> server hosts are active, rather than relying on the connection string,
> unless that information cannot be obtained by the client.
> >
> > That will be particularly important now that Solr contains ZK client
> version 3.5.x.  When paired with servers also running 3.5 or later, it is
> capable of dynamic reconfiguration.  It is entirely possible that the
> active server list will be very different than the connection string.
> >
> > According to the ZK team, the /zookeeper/config znode has this
> information.  I do not know if that is new in version 3.5 or if it also
> exists in 3.4.
> >
> > Thanks,
> > Shawn
>


-- 
Sincerely yours
Mikhail Khludnev

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