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https://issues.apache.org/jira/browse/COUCHDB-1309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13128814#comment-13128814
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Filipe Manana commented on COUCHDB-1309:
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Not sure what you mean:
"I'm not sure it need to be asynchronous. Couldn't we test it here : "
It's synchronous to avoid getting the process' mailbox flooded in the unlikely
case there's a high rate of updates to the same ddoc.
And the updater shouldn't be crashed. If it's running it means there are
clients waiting for it before folding the view. Those clients should not get an
error.
> File descriptor leaks on design document update and view cleanup
> ----------------------------------------------------------------
>
> Key: COUCHDB-1309
> URL: https://issues.apache.org/jira/browse/COUCHDB-1309
> Project: CouchDB
> Issue Type: Bug
> Reporter: Filipe Manana
> Assignee: Filipe Manana
> Attachments: couchdb-1309_12x.patch, couchdb-1309_trunk.patch
>
>
> If we add a design document with views defined in it, open the corresponding
> view group (by querying one of its views for e.g.), then update the design
> document in such a way that the view signature changes (changing a view's map
> function code for e.g), the old view group remains open forever (unless a
> server restart happens) and keeps it's view file reference counter active
> forever.
> If a view cleanup request comes, the old view file is not deleted since the
> reference counter is not dropped by the old view group, keeping the file
> descriptor in use forever.
> This leakage is different from what is reported in COUCHDB-1129 but it's
> somehow related.
> The attached patch, simply shutdowns a view group when the design document is
> updated and the new view signature changes, releasing the old view file
> descriptor (as soon as no more clients are using the old view).
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