noahshaw11 commented on pull request #3964:
URL: https://github.com/apache/couchdb/pull/3964#issuecomment-1074725480
Listed below are the errors found via adding the following spec:
```
diff --git a/src/couch/src/couch_server.erl b/src/couch/src/couch_server.erl
index 3c72e3357..72bd51375 100644
--- a/src/couch/src/couch_server.erl
+++ b/src/couch/src/couch_server.erl
@@ -90,6 +90,9 @@ get_spidermonkey_version() ->
list_to_binary(?COUCHDB_SPIDERMONKEY_VERSION).
sup_start_link(N) ->
gen_server:start_link({local, couch_server(N)}, couch_server, [N], []).
+-spec open(any(), [any()]) ->
+ {ok, any()} |
+ {error, all_dbs_active}.
open(DbName, Options) ->
try
validate_open_or_create(DbName, Options),
```
List of errors:
```
src/couch_db_split.erl:0: in couch_db_split:split/3[57-77]:The pattern
{'not_found', _} can never match the type
{'error', 'all_dbs_active'}
src/couch_db_split.erl:0: in couch_db_split:copy_local_docs/3[78-111]:The
pattern
{'not_found', _} can never match the type
{'error', 'all_dbs_active'}
src/couch_db_split.erl:0: in couch_db_split:cleanup_target/2[112-126]:The
pattern
{'not_found', _} can never match the type
{'error', 'all_dbs_active'}
src/cpse_test_open_close_delete.erl:0: in
cpse_test_open_close_delete:cpse_open_non_existent/1[32-38]:Guard test
{'error', 'all_dbs_active'} | {'ok', _} =:=
__X :: {'not_found', 'no_db_file'} can never succeed
src/cpse_test_open_close_delete.erl:0: in
cpse_test_open_close_delete:cpse_open_create/1[39-45]:Guard test
{'error', 'all_dbs_active'} | {'ok', _} =:=
__X :: {'not_found', 'no_db_file'} can never succeed
src/cpse_test_open_close_delete.erl:0: in
cpse_test_open_close_delete:cpse_open_when_exists/1[46-52]:Guard test
{'error', 'all_dbs_active'} | {'ok', _} =:=
__X :: {'not_found', 'no_db_file'} can never succeed
src/cpse_test_open_close_delete.erl:0: in
cpse_test_open_close_delete:cpse_terminate/1[53-59]:Guard test
{'error', 'all_dbs_active'} | {'ok', _} =:=
__X :: {'not_found', 'no_db_file'} can never succeed
src/dreyfus_rpc.erl:0: in dreyfus_rpc:get_or_create_db/2[104-113]:The
pattern
{'not_found', 'no_db_file'} can never match the type
{'error', 'all_dbs_active'} | {'ok', _}
src/mem3_rep.erl:0: in mem3_rep:go/1[106-132]:The pattern
{'not_found', 'no_db_file'} can never match the type
{'error', 'all_dbs_active'}
src/mem3_rep.erl:0: in mem3_rep:with_src_db/2[711-723]:The pattern
{'not_found', _} can never match the type
{'error', 'all_dbs_active'}
src/mem3_reshard_job.erl:0: in
mem3_reshard_job:wait_source_close_impl/1[499-516]:The pattern
{'not_found', _} can never match the type
{'error', 'all_dbs_active'}
src/mem3_util.erl:0: in mem3_util:ensure_exists/1[294-305]:The pattern
'file_exists' can never match the type
{'error', 'all_dbs_active'}
src/mem3_util.erl:0: in mem3_util:get_or_create_db/2[548-564]:The pattern
{'not_found', 'no_db_file'} can never match the type
{'error', 'all_dbs_active'}
src/mem3_util.erl:0: in mem3_util:get_or_create_db_int/2[565-582]:The
pattern
{'not_found', 'no_db_file'} can never match the type
{'error', 'all_dbs_active'}
src/mem3_util.erl:0: in mem3_util:get_shard_props/1[589-610]:The pattern
{'not_found', _} can never match the type
{'error', 'all_dbs_active'}
src/hastings_rpc.erl:0: in hastings_rpc:get_or_create_db/2[111-120]:The
pattern
{'not_found', 'no_db_file'} can never match the type
{'error', 'all_dbs_active'} | {'ok', _}
```
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