bq: My theory is that the field was changed from a string to
text_lowercase, and docValues set to false then data was reloaded
That would do it. For most changes in the schema, you should expect to
_have_ to completely blow away the index and re-index from scratch.
The underlying structures can be
Yesterday I restarted a development solrcloud. After the cloud restarted 2
collections failed to come back.
I see this in the log:
2018-02-16 15:31:16.684 ERROR
(coreLoadExecutor-6-thread-1-processing-n:ae1c-ecomdev-msc02:8983_solr) [
] o.a.s.c.CachingDirectoryFactory Error closing
directory:org.