Hi,
I'm facing the same problem with Solrcloud 7x - 8x.
I have TLOG type of replicas and when I delete Leader, log is always full
of this:
2019-12-28 14:46:56.239 ERROR (indexFetcher-45942-thread-1) [ ]
o.a.s.h.IndexFetcher No files to download for index generation: 7166
2019-12-28 14:48:03.157
1> an incorrectly formed query has been sent to Solr. This is just a syntax
error in the query.
2> Not sure about that one.
3> Older versions of Solr had a bogus error that would be generated by the
admin UI, see: https://issues.apache.org/jira/browse/SOLR-8793
In future, it would help to see bo