Hi,

I am finally trying to use an fts engine with dovecot. My version is 2.3.7.2 under Ubuntu 20.04.

I installed solr 7.7.3 and then 8.6.0 to see if this was a version-related error. I copied the schema from 7.7.0 as many people said this was fine.

I get the following error when trying to reindex a user's mailbox:

doveadm(francis@francisaugusto.com): Error: fts_solr: Indexing failed: 400 Bad Request
doveadm(francis@francisaugusto.com): Error: Mailbox INBOX: Transaction commit failed: FTS transaction commit failed: backend deinit
doveadm(francis@francisaugusto.com): Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Disconnected: Connection closed (fd=10)

On Solr I get this error:

org.apache.solr.common.SolrException: Exception writing document id 210/9fd7941e8297d25d91600000c3fdd3da/francis@francisaugusto.com to the index; possible analysis error: cannot change field "box" from index options=DOCS_AND_FREQS_AND_POSITIONS to inconsistent index options=DOCS
    at org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:246)

Parallel to this, I got some log messages on Solr before attempting to reindex the user (sorry for the garbadged text:
 
Time (Local) Level Core Logger Message
7/21/2020, 6:38:47 PM WARN false x:dovecot SolrResourceLoader Solr loaded a deprecated plugin/analysis class [solr.TrieLongField]. Please consult documentation how to replace it accordingly.
7/21/2020, 6:38:47 PM WARN false x:dovecot SolrResourceLoader Solr loaded a deprecated plugin/analysis class [solr.SynonymFilterFactory]. Please consult documentation how to replace it accordingly.
7/21/2020, 6:38:47 PM WARN false x:dovecot SolrResourceLoader Solr loaded a deprecated plugin/analysis class [solr.WordDelimiterFilterFactory]. Please consult documentation how to replace it accordingly.
7/22/2020, 6:43:46 PM ERROR false x:dovecot RequestHandlerBase java.lang.IllegalStateException: Type mismatch: uid was indexed as SORTED_NUMERIC
7/22/2020, 6:43:46 PM ERROR false x:dovecot HttpSolrCall null:java.lang.IllegalStateException: Type mismatch: uid was indexed as SORTED_NUMERIC
7/22/2020, 6:43:49 PM ERROR false x:dovecot RequestHandlerBase java.lang.IllegalStateException: Type mismatch: uid was indexed as SORTED_NUMERIC
7/22/2020, 6:43:49 PM ERROR false x:dovecot HttpSolrCall null:java.lang.IllegalStateException: Type mismatch: uid was indexed as SORTED_NUMERIC
7/22/2020, 6:43:56 PM ERROR false x:dovecot RequestHandlerBase java.lang.IllegalStateException: Type mismatch: uid was indexed as SORTED_NUMERIC
7/22/2020, 6:43:56 PM ERROR false x:dovecot HttpSolrCall null:java.lang.IllegalSta

Could anyone point me the right direction to make this work?
 
Best,