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Date: Tue, 1 Nov 2011 12:04:32 +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=
141093#comment-13141093 ]=20

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

Thanks Rogut=C4=97s

However the following will not work:

+        Error2 -> throw(io:format("Failed to write uri_file ~s, error ~p~n=
",
+              [UriFile, Error2]))

You'll want to call io_lib:format instead, which returns an IOList. Then yo=
u should call lists:flatten over the result of io_lib:format to make sure w=
e get a more human readable string.
Wanna give it a 2nd try? :)
               =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
>
>
> 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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