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From "Adam Kocoloski (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COUCHDB-722) Continuous replication tasks fail
Date Mon, 19 Apr 2010 14:42:50 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12858508#action_12858508
] 

Adam Kocoloski commented on COUCHDB-722:
----------------------------------------

(*) I'm not sure why the instance_start_time needs to change.  I think we could keep the old
instance_start_time on the compaction switchover and thus avoid the reboot altogether.

> Continuous replication tasks fail
> ---------------------------------
>
>                 Key: COUCHDB-722
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-722
>             Project: CouchDB
>          Issue Type: Bug
>          Components: Replication
>    Affects Versions: 0.11
>         Environment: Arch Linux, CouchDB 0.11
>            Reporter: Fredrik Widlund
>         Attachments: bubble_rep_restart_errors.patch
>
>
> Couchdb 0.11.0 replication tasks fails with the below after working for everything from
a few minutes to an hour. The below replication is of the type {"source":"http://127.0.0.1:5984/node-metrics",
"target":"http://1.2.3.4:5984/node-metrics", "continuous":true} and the node-metrics database
exist on both machines.
> The database is periodically compacted which, and I'm speculating here, could be a contributing
factor to the crash.
> Kind regards,
> Fredrik Widlund
> =CRASH REPORT==== 1-Apr-2010::14:25:26 ===
>   crasher:
>     initial call: couch_rep:init/1
>     pid: <0.274.0>
>     registered_name: []
>     exception exit: {{badmatch,
>                          {stop,
>                              {db_not_found,
>                                  <<"http://127.0.0.1:5984/node-metrics/">>}}},
>                      [{couch_rep,do_checkpoint,1},
>                       {couch_rep,handle_cast,2},
>                       {gen_server,handle_msg,5},
>                       {proc_lib,init_p_do_apply,3}]}
>       in function  gen_server:terminate/6
>     ancestors: [couch_rep_sup,couch_primary_services,couch_server_sup,
>                   <0.32.0>]
>     messages: [{'EXIT',<0.21084.1>,normal}]
>     links: [<0.81.0>]
>     dictionary: [{task_status_update,{{1270,124726,124009},0}}]
>     trap_exit: true
>     status: running
>     heap_size: 10946
>     stack_size: 24
>     reductions: 29173458
>   neighbours:
> [error] [<0.81.0>] {error_report,<0.31.0>,
>     {<0.81.0>,supervisor_report,
>      [{supervisor,{local,couch_rep_sup}},
>       {errorContext,child_terminated},
>       {reason,
>           {{badmatch,
>                {stop,
>                    {db_not_found,<<"http://127.0.0.1:5984/node-metrics/">>}}},
>            [{couch_rep,do_checkpoint,1},
>             {couch_rep,handle_cast,2},
>             {gen_server,handle_msg,5},
>             {proc_lib,init_p_do_apply,3}]}},
>       {offender,
>           [{pid,<0.274.0>},
>            {name,"f3e3081db5a215dbaf9b2984f0552090+continuous"},
>            {mfa,
>                {gen_server,start_link,
>                    [couch_rep,
>                     ["f3e3081db5a215dbaf9b2984f0552090",
>                      {[{<<"target">>,
>                         <<"http://1.2.3.4:5984/node-metrics">>},
>                        {<<"source">>,<<"http://127.0.0.1:5984/node-metrics">>},
>                        {<<"continuous">>,true}]},
>                      {user_ctx,null,
>                          [<<"_admin">>],
>                          <<"{couch_httpd_auth, default_authentication_handler}">>}],
>                     []]}},
>            {restart_type,temporary},
>            {shutdown,1},
>            {child_type,worker}]}]}}
> =SUPERVISOR REPORT==== 1-Apr-2010::14:25:26 ===
>      Supervisor: {local,couch_rep_sup}
>      Context:    child_terminated
>      Reason:     {{badmatch,
>                       {stop,
>                           {db_not_found,
>                               <<"http://127.0.0.1:5984/node-metrics/">>}}},
>                   [{couch_rep,do_checkpoint,1},
>                    {couch_rep,handle_cast,2},
>                    {gen_server,handle_msg,5},
>                    {proc_lib,init_p_do_apply,3}]}
>      Offender:   [{pid,<0.274.0>},
>                   {name,"f3e3081db5a215dbaf9b2984f0552090+continuous"},
>                   {mfa,
>                       {gen_server,start_link,
>                           [couch_rep,
>                            ["f3e3081db5a215dbaf9b2984f0552090",
>                             {[{<<"target">>,
>                                <<"http://1.2.3.4:5984/node-metrics">>},
>                               {<<"source">>,
>                                <<"http://127.0.0.1:5984/node-metrics">>},
>                               {<<"continuous">>,true}]},
>                             {user_ctx,null,
>                                 [<<"_admin">>],
>                                 <<"{couch_httpd_auth, default_authentication_handler}">>}],
>                            []]}},
>                   {restart_type,temporary},
>                   {shutdown,1},
>                   {child_type,worker}]

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