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Date: Tue, 1 Nov 2011 19:53:32 +0000 (UTC)
From: "Filipe Manana (Commented) (JIRA)" <jira@apache.org>
To: dev@couchdb.apache.org
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Subject: [jira] [Commented] (COUCHDB-1326) scanty error message when writing
 to uri_file fails
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    [ https://issues.apache.org/jira/browse/COUCHDB-1326?page=3Dcom.atlassi=
an.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D13=
141504#comment-13141504 ]=20

Filipe Manana commented on COUCHDB-1326:
----------------------------------------

We do, check the function couch_httpd:error_info/2.

For this particular case, which happens on startup, the code is a bit repea=
ted. However when handling such an error for a request, we have common code=
.

Examples from COUCHDB-966

$ curl -H 'X-Couch-Persist: true' -X PUT http://localhost:5984/_config/couc=
hdb/delayed_commits -d '"false"'=20
{"error":"file_permission_error","reason":"/home/fdmanana/git/hub/couchdb/e=
tc/couchdb/local_dev.ini"}=20

For a database file for which we don't have read permission:=20

$ curl http://localhost:5984/abc=20
{"error":"file_permission_error","reason":"/home/fdmanana/git/hub/couchdb/t=
mp/lib/abc.couch"}=20

Thanks for the report and patch :)
               =20
> scanty error message when writing to uri_file fails
> ---------------------------------------------------
>
>                 Key: COUCHDB-1326
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1326
>             Project: CouchDB
>          Issue Type: Bug
>            Reporter: Rogut=C4=97s Sparnuotos
>            Priority: Minor
>         Attachments: 0001-A-more-useful-error-when-writing-to-uri_file-fa=
ils.patch, 0001-A-more-useful-error-when-writing-to-uri_file-fails.patch, C=
OUCHDB-1326-fdmanana.patch
>
>
> CouchDB crashes when it fails writing to uri_file (set from the [couchdb]=
 section). The error message is too vague to understand what's going on: "{=
{badmatch,{error,enoent}}". At least the filename should be mentioned.
> P.S.
> I'd say it's all Erlang's fault, because file:write_file() doesn't report=
 the file name on errors.

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