While migrating to Solr9 checked logs and found this ->
23:52:40, 001[Finish bulk] [WARN ] SolrCloudDocumentUtil: problem adding doc, will retry:Error from server at localhost:8083/.../fec52148-8700-45ea-8840-f10339aaa32a_234_shard1_replica_n1: ClusterState says we are the leader (localhost:8083/.../fec52148-8700-45ea-8840-f10339aaa32a_234_shard1_replica_n1), but locally we don't think so. Request came from null
23:52:46, 355[Finish bulk] [ERROR] SolrCloudDocumentUtil: retry failed adding doc to index.
3000+ such entries in log
Something to worry about ?
David