[GitHub] [couchdb] jaydoane commented on issue #2729: Don't advertise unimplemented features

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jaydoane commented on issue #2729: Don't advertise unimplemented features
URL: https://github.com/apache/couchdb/pull/2729#issuecomment-605528437
 
 
   > Also perhaps instead of commenting those out we just remove the feature set lines. Except for scheduler since we intend to bring it back.
   > 
   > Another crazy idea is to not start couch_server at all. I am guessing this will breaking a whole bunch of things that try to open system databases and such but if you're curious and want to see what happens that will auto-magically disable all these features. If that works we would want to move access-ready to another place then.
   
   I commented out the couch_server child spec in couch_primary_sup.erl, but couch layer failed to start:
   
   ```erlang
   {"init terminating in do_boot",{{error,{{shutdown,{failed_to_start_child,mem3_nodes,{badarg,[{ets,lookup,[couch_dbs_locks,<<"_nodes">>],[]},{couch_server,validate_open_or_create,2,[{file,"src/couch_server.erl"},{line,711}]},{couch_server,open,2,[{file,"src/couch_server.erl"},{line,83}]},{couch_db,open,2,[{file,"src/couch_db.erl"},{line,160}]},{mem3_util,ensure_exists,1,[{file,"src/mem3_util.erl"},{line,270}]},{mem3_nodes,initialize_nodelist,0,[{file,"src/mem3_nodes.erl"},{line,94}]},{mem3_nodes,init,1,[{file,"src/mem3_nodes.erl"},{line,45}]},{gen_server,init_it,2,[{file,"gen_server.erl"},{line,374}]}]}}},{mem3_app,start,[normal,[]]}}},[{boot_node,start_app,3,[{file,"dev/boot_node.erl"},{line,146}]},{lists,foldl,3,[{file,"lists.erl"},{line,1263}]},{boot_node,start_app,3,[{file,"dev/boot_node.erl"},{line,136}]},{lists,foldl,3,[{file,"lists.erl"},{line,1263}]},{boot_node,start_app,3,[{file,"dev/boot_node.erl"},{line,136}]},{lists,foldl,3,[{file,"lists.erl"},{line,1263}]},{boot_node,start_app,3,[{file,"dev/boot_node.erl"},{line,136}]},{lists,foldl,3,[{file,"lists.erl"},{line,1263}]}]}}
   ```
   
   I think it's going to probably require a bit more work to turn it off, which I presume is out of scope for this commit.

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