janhoy opened a new issue, #556: URL: https://github.com/apache/solr-operator/issues/556
We support topologySpreadConstraint in #350, so Solr PODs are spread across AZs. But for Solr to be able to place replicas across AZs with the [Affinity placement plugin](https://solr.apache.org/guide/solr/latest/configuration-guide/replica-placement-plugins.html#affinityplacementfactory), Solr needs access to *node label* `topology.kubernetes.io/zone` as a java sysprop `availability_zone`. This is non-trivial, as node labels are not exposed to PODs, and you'd need special permissions to fetch it from ApiServer. Instead of each user going through hoops of setting up Init containers to pull in this info, let's have the operator handle it and inject `topology.kubernetes.io/zone` as a system property into Solr. Elastic has done a similar thing, referenced in https://the-asf.slack.com/archives/C01JR8WE1M5/p1669108868939589?thread_ts=1668633426.926589&cid=C01JR8WE1M5 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@solr.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@solr.apache.org For additional commands, e-mail: issues-h...@solr.apache.org
