dovecot fts-solr + solr 8.7.0 upgrade: "Indexing failed: 401 Unauthorized" + "Transaction commit failed: FTS transaction commit failed: backend deinit" ?

[PGNet Dev]

On 11/13/20 9:56 AM, PGNet Dev wrote:
>> (2) see here: https://wiki.dovecot.org/Plugins/FTS/Solr
>>
>> two useful settings are debug and rawlog_dir=whatever to be added in the same line as fts_solr

with

	fts_solr = ... debug

line #35 @ https://pastebin.com/9ecLQspD _looks_ like the 401's from solr server itself.


i do NOT currently have

   service indexer{}
   service indexer-worker {}

configured in dovecot conf; i.e., at whatever the defaults are.
didn't have to before ...

still dunno why the 401. :-/