Indexer error after upgrade to 2.3.11.3

[Alessio Cecchi]

Hi,

after the upgrade to Dovecot 2.3.11.3, from 2.3.10.1, I see frequently 
these errors from different users:

Aug 18 11:02:35 Panic: indexer-worker(info at domain.com) 
session=<g71KISOttvS5LNVj:O3ahCyuZO18cYAAAEPCW+w>: file 
http-client-request.c: line 1232 (http_client_request_send_more): 
assertion failed: (req->payload_input != NULL)
Aug 18 11:02:35 Error: indexer-worker(info at domain.com) 
session=<g71KISOttvS5LNVj:O3ahCyuZO18cYAAAEPCW+w>: Raw backtrace: 
/usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x2f) 
[0x7f0ee3c828bf] -> 
/usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x26) [0x7f0ee3c829d6] 
-> /usr/lib64/dovecot/libdovecot.so.0(+0xeb7ba) [0x7f0ee3c8d7ba] -> 
/usr/lib64/dovecot/libdovecot.so.0(+0xeb801) [0x7f0ee3c8d801] -> 
/usr/lib64/dovecot/libdovecot.so.0(+0x42ff1) [0x7f0ee3be4ff1] -> 
/usr/lib64/dovecot/libdovecot.so.0(http_client_request_send_more+0x415) 
[0x7f0ee3c2ba25] -> 
/usr/lib64/dovecot/libdovecot.so.0(http_client_connection_output+0x114) 
[0x7f0ee3c30994] -> /usr/lib64/dovecot/libdovecot.so.0(+0x115470) 
[0x7f0ee3cb7470] -> 
/usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x55) 
[0x7f0ee3ca4eb5] -> 
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xdc) 
[0x7f0ee3ca6ebc] -> 
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x5c) 
[0x7f0ee3ca4fac] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) 
[0x7f0ee3ca51f8] -> /usr/lib64/dovecot/libdovecot.so.0(+0x8a955) 
[0x7f0ee3c2c955] -> 
/usr/lib64/dovecot/libdovecot.so.0(http_client_request_finish_payload+0x21) 
[0x7f0ee3c2cbd1] -> 
/usr/lib64/dovecot/lib21_fts_solr_plugin.so(solr_connection_post_end+0x45) 
[0x7f0ee1c85d15] -> /usr/lib64/dovecot/lib21_fts_solr_plugin.so(+0x3fa0) 
[0x7f0ee1c81fa0] -> /usr/lib64/dovecot/lib20_fts_plugin.so(+0x86cc) 
[0x7f0ee297f6cc] -> 
/usr/lib64/dovecot/lib20_fts_plugin.so(fts_backend_update_deinit+0x2c) 
[0x7f0ee297f74c] -> /usr/lib64/dovecot/lib20_fts_plugin.so(+0xfd04) 
[0x7f0ee2986d04] -> /usr/lib64/dovecot/lib20_fts_plugin.so(+0xff3f) 
[0x7f0ee2986f3f] -> /usr/lib64/dovecot/lib10_quota_plugin.so(+0xf64b) 
[0x7f0ee2dc764b] -> /usr/lib64/dovecot/lib01_acl_plugin.so(+0xde43) 
[0x7f0ee2fdce43] -> 
/usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit_get_changes+0x54) 
[0x7f0ee3f91db4] -> 
/usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit+0x16) 
[0x7f0ee3f91e76] -> dovecot/indexer-worker [info at domain.com 
INBOX](+0x291c) [0x557584acb91c] -> dovecot/indexer-worker 
[info at domain.com INBOX](+0x2e54) [0x557584acbe54] -> 
/usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x55) 
[0x7f0ee3ca4eb5] -> 
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xdc) 
[0x7f0ee3ca6ebc] -> 
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x5c) 
[0x7f0ee3ca4fac] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) 
[0x7f0ee3ca51f8]
Aug 18 11:02:35 Error: indexer: Indexer worker disconnected, discarding 
1 requests for info at domain.com
Aug 18 11:02:35 Error: imap(info at domain.com) session=<g71KISOttvS5LNVj>: 
indexer failed to index mailbox INBOX
Aug 18 11:02:35 Fatal: indexer-worker(info at domain.com) 
session=<g71KISOttvS5LNVj:O3ahCyuZO18cYAAAEPCW+w>: master: 
service(indexer-worker): child 24604 killed with signal 6 (core dumps 
disabled - https://dovecot.org/bugreport.html#coredumps)

I'm using FTS with Solr 6.6.5. What is it?

Thanks

-- 
Alessio Cecchi
Postmaster @ http://www.qboxmail.it
https://www.linkedin.com/in/alessice

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