I don’t think that Solr really provides (yet!) a great solution across datacenter. I lean towards, if you want to run in multiple datacenters, just run multiple fully independent clusters, and feed them from a common queue. That way, if something bad happens in one area, you don’t have the other area trying to connect/communicate across a barrier.
> On Sep 15, 2021, at 6:02 AM, Christian Pfarr <z0lt...@pm.me.INVALID> wrote: > > You can use autoscaling Feature to achieve this. We currently use it for > balancing nodes within a Datacenter, but should also work with different AZ > by providing a system property. > > > https://solr.apache.org/guide/8_7/solrcloud-autoscaling-policy-preferences.html#place-replicas-based-on-a-system-property > > <https://solr.apache.org/guide/8_7/solrcloud-autoscaling-policy-preferences.html#place-replicas-based-on-a-system-property> > > > combine 3 AZ rules with 33% each . > > > https://solr.apache.org/guide/8_7/solrcloud-autoscaling-policy-preferences.html#multiple-percentage-rules > > <https://solr.apache.org/guide/8_7/solrcloud-autoscaling-policy-preferences.html#multiple-percentage-rules> > > > Not totally sure if it works that way, but you can give it a try. > > > Regards, > > Christian > > > > > -------- Original-Nachricht -------- > Am 15. Sept. 2021, 07:44, Walter Underwood schrieb: > > You need three data centers. We split our Zookeeper ensemble across three AWS > availability zones. > > sunder > > Sent from my iPad > > > On Sep 14, 2021, at 10:28 PM, HariBabu kuruva <hari2708.kur...@gmail.com> > > wrote: > > > > Hi All, > > > > We have Solr cloud running on 10 nodes with Zookeeper running on 5 nodes. > > They are running across 2 data centers. > > > > As part of high availability we would like to run solr so that it should > > sustain even if one data center goes down. > > > > How can we achieve this approach as we need to maintain the Quorum rule for > > Zookeepers. > > > > Please advise > > > > -- > > > > Thanks and Regards, > > Hari > > Mobile:9790756568 > > <publickey - EmailAddress(s=z0lt...@pm.me) - 0xF0E154C5.asc> _______________________ Eric Pugh | Founder & CEO | OpenSource Connections, LLC | 434.466.1467 | http://www.opensourceconnections.com <http://www.opensourceconnections.com/> | My Free/Busy <http://tinyurl.com/eric-cal> Co-Author: Apache Solr Enterprise Search Server, 3rd Ed <https://www.packtpub.com/big-data-and-business-intelligence/apache-solr-enterprise-search-server-third-edition-raw> This e-mail and all contents, including attachments, is considered to be Company Confidential unless explicitly stated otherwise, regardless of whether attachments are marked as such.
