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 <[email protected]> > > 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 [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 [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
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