Hello, everyone!
This post describes SolrServerAdmin Fails to Be Started.
[Applicable Versions]
6.5.x
[Symptom]
SolrServerAdmin fails to be started after Solr is started or restarted.
[Fault Locating]
When checking /var/log/Bigdata/solr/SolrHAServer/prestartDetail.log of the node on which SolrServerAdmin resides, you can find that the information "float IP is invalid" is printed in the log.
[Solution]
Change the floating IP address to an unused one, save the configuration, and restart the controller.
Hope you can learn from it, thank you!