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From "Adam Kocoloski (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COUCHDB-597) Replication tasks crash.
Date Tue, 15 Dec 2009 18:05:18 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790853#action_12790853
] 

Adam Kocoloski commented on COUCHDB-597:
----------------------------------------

The origin of this {#Ref<0.0.1832.61391>,3} message is a total mystery to me, but I
know slyphon on IRC also saw this.  We could guard against it by adding a catchall clause
to couch_task_status:handle_info

> Replication tasks crash.
> ------------------------
>
>                 Key: COUCHDB-597
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-597
>             Project: CouchDB
>          Issue Type: Bug
>          Components: Database Core
>    Affects Versions: 0.11
>            Reporter: Robert Newson
>
> If I kick off 10 replication tasks in quick succession, occasionally one or two of the
replication tasks will die and not be resumed. It seems that the stat tracking is a little
buggy, and under stress can eventually cause a permanent failure of the supervised replication
task;
> [Fri, 11 Dec 2009 19:00:08 GMT] [error] [<0.80.0>] {error_report,<0.30.0>,
>     {<0.80.0>,supervisor_report,
>      [{supervisor,{local,couch_rep_sup}},
>       {errorContext,shutdown_error},
>       {reason,killed},
>       {offender,
>           [{pid,<0.6700.11>},
>            {name,"fcbb13200a1618cf983b347f4d2c9835+create_target"},
>            {mfa,
>                {gen_server,start_link,
>                    [couch_rep,
>                     ["fcbb13200a1618cf983b347f4d2c9835",
>                      {[{<<"create_target">>,true},
>                        {<<"source">>,<<"http://node:5984/perf-p2">>},
>                        {<<"target">>,<<"perf-p2">>}]},
>                      {user_ctx,null,[<<"_admin">>]}],
>                     []]}},
>            {restart_type,temporary},
>            {shutdown,1},
>            {child_type,worker}]}]}}
> [Fri, 11 Dec 2009 19:00:08 GMT] [error] [emulator] Error in process <0.6705.11>
with exit value: {badarg,[{ets,insert,[stats_hit_table,{{couchdb,open_os_files},-1}]},{couch_stats_collector,decrement,1}]}

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