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From "Alexey Loshkarev (JIRA)" <j...@apache.org>
Subject [jira] [Created] (COUCHDB-1187) Server terminated if timeout reached during reopen_db after compaction
Date Sun, 05 Jun 2011 15:01:47 GMT
Server terminated if timeout reached during reopen_db after compaction
----------------------------------------------------------------------

                 Key: COUCHDB-1187
                 URL: https://issues.apache.org/jira/browse/COUCHDB-1187
             Project: CouchDB
          Issue Type: Bug
          Components: Database Core
    Affects Versions: 1.0.2
         Environment: Gentoo Linux
Erlang 14.2.1
            Reporter: Alexey Loshkarev


I have installed couchdb database onto ReiserFS partition. Before databases becomes large,
all was fine.
But now, I have some databases with very much revisions in it (but very few documents). So,
it grows from 10M to 1G in couple of days. Next, i compact it and it become 10M again.
But, if i have forgot to compact it in a few days, it becomes 10GB+. Deleting such big files
is very time-consumption on reiserfs (i know, reiser4, ext3/4 or xfs has no such problem,
but reiserfs3 has). It may take up to couple of minutes to finish deletion.
Now, after compaction, database terminated, due timeout on reopen_db action.

Here are log:
========================

[Sun, 05 Jun 2011 14:47:16 GMT] [info] [<0.128.0>] Starting compaction for db "exhaust"

[Sun, 05 Jun 2011 14:47:16 GMT] [info] [<0.2451.0>] 10.20.21.1 - - 'POST' /exhaust/_compact
202

[Sun, 05 Jun 2011 14:47:21 GMT] [info] [<0.2452.0>] 10.20.21.1 - - 'GET' /_active_tasks
200

[Sun, 05 Jun 2011 14:47:21 GMT] [info] [<0.2463.0>] 10.20.21.1 - - 'GET' / 200










[Sun, 05 Jun 2011 14:47:24 GMT] [info] [<0.128.0>] Compaction for db "exhaust" completed.

[Sun, 05 Jun 2011 14:47:24 GMT] [info] [<0.2464.0>] 127.0.0.1 - - 'GET' / 200

[Sun, 05 Jun 2011 14:47:26 GMT] [info] [<0.2473.0>] 10.20.21.1 - - 'GET' /_active_tasks
200

[Sun, 05 Jun 2011 14:47:26 GMT] [info] [<0.2476.0>] 10.20.21.1 - - 'GET' / 200










[Sun, 05 Jun 2011 14:47:29 GMT] [error] [<0.507.0>] ** Generic server <0.507.0>
terminating 
** Last message in was {'$gen_cast',reopen_db}
** When Server state == {group_state,undefined,<<"exhaust">>,
                         {"/var/lib/couchdb",<<"exhaust">>,
                          {group,
                           <<26,211,78,5,6,56,56,6,195,233,132,7,12,137,41,86>>,
                           nil,nil,<<"_design/conflicts">>,<<"javascript">>,
                           [],
                           [{view,0,
                             [<<"list">>],
                             <<"function(doc) {\n    if(doc._conflicts) {\n        emit(doc._conflicts,
null);\n    }\n}\n">>,
                             nil,[],[]}],
                           nil,0,0,nil,nil}},
                         {group,
                          <<26,211,78,5,6,56,56,6,195,233,132,7,12,137,41,86>>,
                          {db,<0.125.0>,<0.128.0>,nil,<<"1307284558924035">>,
                           <0.118.0>,<0.137.0>,
                           {db_header,5,407871,0,
                            {14473890608,{670,14}},
                            {14473892185,684},
                            {14473796209,[]},
                            0,nil,nil,1000},
                           407871,
                           {btree,<0.118.0>,
                            {14473890608,{670,14}},
                            #Fun<couch_db_updater.7.10053969>,
                            #Fun<couch_db_updater.8.35220795>,
                            #Fun<couch_btree.5.124754102>,
                            #Fun<couch_db_updater.9.107593676>},
                           {btree,<0.118.0>,
                            {14473892185,684},
                            #Fun<couch_db_updater.10.30996817>,
                            #Fun<couch_db_updater.11.96515267>,
                            #Fun<couch_btree.5.124754102>,
                            #Fun<couch_db_updater.12.117826253>},
                           {btree,<0.118.0>,
                            {14473796209,[]},
                            #Fun<couch_btree.0.83553141>,
                            #Fun<couch_btree.1.30790806>,
                            #Fun<couch_btree.2.124754102>,nil},
                           407871,<<"exhaust">>,
                           "/var/lib/couchdb/exhaust.couch",[],[],nil,
                           {user_ctx,null,[],undefined},
                           nil,1000,
                           [before_header,after_header,on_file_open],
                           false},
                          <0.2256.0>,<<"_design/conflicts">>,<<"javascript">>,
                          [],
                          [{view,0,
                            [<<"list">>],
                            <<"function(doc) {\n    if(doc._conflicts) {\n        emit(doc._conflicts,
null);\n    }\n}\n">>,
                            {btree,<0.2256.0>,
                             {157,{1,[]}},
                             #Fun<couch_btree.3.83553141>,
                             #Fun<couch_btree.4.30790806>,
                             #Fun<couch_view.less_json_ids.2>,
                             #Fun<couch_view_group.10.132983779>},
                            [],[]}],
                          {btree,<0.2256.0>,
                           {51,[]},
                           #Fun<couch_btree.0.83553141>,
                           #Fun<couch_btree.1.30790806>,
                           #Fun<couch_btree.2.124754102>,nil},
                          407871,0,nil,nil},
                         nil,nil,false,[],<0.2261.0>,<0.511.0>}
** Reason for termination == 
** {timeout,{gen_server,call,[<0.137.0>,{drop,<0.507.0>}]}}


[Sun, 05 Jun 2011 14:47:29 GMT] [error] [<0.507.0>] {error_report,<0.31.0>,
    {<0.507.0>,crash_report,
     [[{initial_call,{couch_view_group,init,['Argument__1']}},
       {pid,<0.507.0>},
       {registered_name,[]},
       {error_info,
           {exit,
               {timeout,{gen_server,call,[<0.137.0>,{drop,<0.507.0>}]}},
               [{gen_server,terminate,6},{proc_lib,init_p_do_apply,3}]}},
       {ancestors,
           [couch_view,couch_secondary_services,couch_server_sup,<0.32.0>]},
       {messages,[]},
       {links,[<0.511.0>,<0.2256.0>,<0.101.0>]},
       {dictionary,[]},
       {trap_exit,true},
       {status,running},
       {heap_size,987},
       {stack_size,24},
       {reductions,1902}],
      [{neighbour,
           [{pid,<0.511.0>},
            {registered_name,[]},
            {initial_call,{couch_event_sup,init,['Argument__1']}},
            {current_function,{gen_server,loop,6}},
            {ancestors,
                [<0.507.0>,couch_view,couch_secondary_services,
                 couch_server_sup,<0.32.0>]},
            {messages,[{'$gen_cast',stop}]},
            {links,[<0.507.0>,<0.85.0>]},
            {dictionary,[]},
            {trap_exit,false},
            {status,runnable},
            {heap_size,233},
            {stack_size,9},
            {reductions,32}]}]]}}




[Sun, 05 Jun 2011 14:47:35 GMT] [error] [<0.2256.0>] ** Generic server <0.2256.0>
terminating 
** Last message in was {'EXIT',<0.507.0>,
                           {timeout,
                               {gen_server,call,
                                   [<0.137.0>,{drop,<0.507.0>}]}}}
** When Server state == {file,{file_descriptor,prim_file,{#Port<0.3297>,22}},
                              0,4185}
** Reason for termination == 
** {timeout,{gen_server,call,[<0.137.0>,{drop,<0.507.0>}]}}


[Sun, 05 Jun 2011 14:47:35 GMT] [error] [<0.2256.0>] {error_report,<0.31.0>,
    {<0.2256.0>,crash_report,
     [[{initial_call,{couch_file,init,['Argument__1']}},
       {pid,<0.2256.0>},
       {registered_name,[]},
       {error_info,
           {exit,
               {timeout,{gen_server,call,[<0.137.0>,{drop,<0.507.0>}]}},
               [{gen_server,terminate,6},{proc_lib,init_p_do_apply,3}]}},
       {ancestors,
           [<0.507.0>,couch_view,couch_secondary_services,couch_server_sup,
            <0.32.0>]},
       {messages,[]},
       {links,[#Port<0.3297>,<0.2261.0>]},
       {dictionary,[]},
       {trap_exit,true},
       {status,running},
       {heap_size,377},
       {stack_size,24},
       {reductions,2223}],
      [{neighbour,
           [{pid,<0.2261.0>},
            {registered_name,[]},
            {initial_call,{couch_ref_counter,init,['Argument__1']}},
            {current_function,{gen_server,loop,6}},
            {ancestors,
                [<0.507.0>,couch_view,couch_secondary_services,
                 couch_server_sup,<0.32.0>]},
            {messages,
                [{'DOWN',#Ref<0.0.0.44077>,process,<0.507.0>,
                     {timeout,
                         {gen_server,call,[<0.137.0>,{drop,<0.507.0>}]}}}]},
            {links,[<0.2256.0>]},
            {dictionary,[]},
            {trap_exit,false},
            {status,runnable},
            {heap_size,377},
            {stack_size,9},
            {reductions,114}]}]]}}



========================

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