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From "Paul Carey (JIRA)" <j...@apache.org>
Subject [jira] Updated: (COUCHDB-180) Too many view files may be held open, rendering CouchDB unusable
Date Sat, 20 Dec 2008 16:39:44 GMT

     [ https://issues.apache.org/jira/browse/COUCHDB-180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Paul Carey updated COUCHDB-180:
-------------------------------

    Attachment: test_for_open_files.js

> Too many view files may be held open, rendering CouchDB unusable
> ----------------------------------------------------------------
>
>                 Key: COUCHDB-180
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-180
>             Project: CouchDB
>          Issue Type: Bug
>          Components: JavaScript View Server
>    Affects Versions: 0.9
>         Environment: OS X 10.5.5
>            Reporter: Paul Carey
>         Attachments: test_for_open_files.js
>
>
> On trunk (rev 728285), CouchDB will hold onto view files for a certain request pattern.

> Once a threshold of open files has been exceeded, all requests to CouchDB will result
in {error,emfile}.
> The attached test case runs through the following sequence n times.
> delete db
> create db
> create doc
> query non existant view
> create view
> query view
> On my machine a value of about 250 for n is enough for the threshold to be exceeded.
Regardless, running lsof clearly shows CouchDB holding multiple refs to the same view file.
>  

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