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From "Adam Kocoloski (JIRA)" <j...@apache.org>
Subject [jira] Updated: (COUCHDB-427) Trying to replicate a database from an old format increase cpu usage up to 100%
Date Thu, 13 Aug 2009 19:47:16 GMT

     [ https://issues.apache.org/jira/browse/COUCHDB-427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Adam Kocoloski updated COUCHDB-427:
-----------------------------------

    Attachment: duplicate_attachments_crash.txt

Confirmed that this is still a problem on trunk.  I'm attaching the full crash dump, but the
key stacktrace is

[error] [<0.69.0>] ** Generic server <0.69.0> terminating 
** Last message in was {'EXIT',<0.89.0>,
                           {{nocatch,
                                {bad_request,<<"Duplicate attachments">>}},
                            [{couch_db,check_dup_atts,1},
                             {couch_db,sort_and_check_atts,1},
                             {couch_db,'-update_docs/4-lc$^3/1-3-',2},
                             {couch_db,'-update_docs/4-lc$^2/1-2-',2},
                             {couch_db,'-update_docs/4-lc$^2/1-2-',2},
                             {couch_db,update_docs,4},
                             {couch_rep_writer,writer_loop,3}]}}

> Trying to replicate a database from an old format increase cpu usage up to 100%
> -------------------------------------------------------------------------------
>
>                 Key: COUCHDB-427
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-427
>             Project: CouchDB
>          Issue Type: Bug
>         Environment: osx, ubuntu, openbsd
>            Reporter: Benoit Chesneau
>            Priority: Critical
>             Fix For: 0.10
>
>         Attachments: duplicate_attachments_crash.txt
>
>
> When you try to replicate a database from an old version of couchdb to latest, the cpu
usage increase up to 100% and more instead of just hanging.
> You can try to replicate from http://benoitc.im/b to latest trunk or 0.9.1 to replicate
this issue.

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