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From: Markus Jelsma <markus@buyways.nl>
Reply-To: markus@buyways.nl
Organization: Buyways
To: user@couchdb.apache.org
Subject: Strange error during indexing
Date: Fri, 22 Jan 2010 16:03:41 +0100
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Hello all,


I have a sharded setup using 4 couch nodes and 2 lounge nodes. Each couch has 
8 database shards and yesterday i imported some 150.000 user profiles for 
which i just made a simple view for testing.

Anyway, one instance of the 5th shard on the 4th node has had a problem during 
indexing and sends the following error to the couch log:

[Fri, 22 Jan 2010 13:29:11 GMT] [error] [<0.28173.12>] {error_report,<0.23.0>,
    {<0.28173.12>,crash_report,
     [[{initial_call,{mochiweb_socket_server,acceptor_loop,['Argument__1']}},
       {pid,<0.28173.12>},
       {registered_name,[]},
       {error_info,
           {error,
               {case_clause,{error,enotconn}},
               [{mochiweb_request,get,2},
                {couch_httpd,handle_request,5},
                {mochiweb_http,headers,5},
                {proc_lib,init_p_do_apply,3}]}},
       {ancestors,
           [couch_httpd,couch_secondary_services,couch_server_sup,<0.1.0>]},
       {messages,[]},
       {links,[#Port<0.160398>,<0.63.0>,#Port<0.160397>]},
       {dictionary,
           [{mochiweb_request_qs,[{"key","\"hotmail.com\""},
{"group","true"}]},
            {jsonp,undefined},
            {couch_drv_port,#Port<0.160398>}]},
       {trap_exit,false},
       {status,running},
       {heap_size,2584},
       {stack_size,24},
       {reductions,60611}],
      []]}}

[Fri, 22 Jan 2010 13:29:11 GMT] [error] [<0.63.0>] {error_report,<0.23.0>,
    {<0.63.0>,std_error,
     {mochiweb_socket_server,235,
         {child_error,{case_clause,{error,enotconn}}}}}}

[Fri, 22 Jan 2010 13:29:15 GMT] [info] [<0.28921.12>] checkpointing view 
update
at seq 11706 for idm5 _design/profiles


The problem persists when i remove the view index from disk and stop and start 
CouchDB. However, after i replicated the shard from some other node it was 
gone!

Can anyone tell me what this error actually means and how we can avoid it in 
the future?


Cheers,