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From "Ronny Pfannschmidt (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COUCHDB-1441) _rewrite handler loops cause cpu load and swap of death
Date Thu, 15 Mar 2012 23:54:38 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-1441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13230723#comment-13230723
] 

Ronny Pfannschmidt commented on COUCHDB-1441:
---------------------------------------------

a reasonable way to implement this might be to add a counter when rewriting the mochiweb headers
in the _rewrite handler

                
> _rewrite handler loops cause cpu load and swap of death
> -------------------------------------------------------
>
>                 Key: COUCHDB-1441
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1441
>             Project: CouchDB
>          Issue Type: Bug
>          Components: HTTP Interface
>         Environment: debian testing
>            Reporter: Ronny Pfannschmidt
>
> when creating a simple _rewrite loop, the db will start to eat cpu and take more &
more memory
> for testing i created:
> {"_id":"_design/loopa","rewrites":[{"from":"","to":"../loopb/_rewrite"}]}
> {"_id":"_design/loopb","rewrites":[{"from":"","to":"../loopa/_rewrite"}]}
> accessing $dburi/_design/loopa/_rewrite/ will start the loop

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