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Date: Tue, 1 Nov 2011 19:41:33 +0000 (UTC)
From: =?utf-8?Q?Rogut=C4=97s_Sparnuotos_=28Commented=29_=28JIRA=29?=
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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=
141494#comment-13141494 ]=20

Rogut=C4=97s Sparnuotos commented on COUCHDB-1326:
---------------------------------------------

1) Sorry about indentation - not sure how I didn't notice.
2) Ok.
3) The message is much easier to notice with the logger.
4) Error messages in CouchDB are cryptic overall. Nice to see that you care=
.

Fun facts:
1. The first time I installed CouchDB I saw an eaccess error and couldn't u=
nderstand it.
2. This patch came after I accidentally pointed uri_file to a directory. I =
noticed the 'eisdir' error but it was hard to find out where it was coming =
from.

I think that it would be best (more user friendly) if such startup errors w=
ere handled in a cleaner fashion. Would it be possible to throw({known_star=
tup_error}) and catch it before Erlang decides to crash and write a crash d=
ump?

It was nice of you to ask a CouchDB newbie for feedback. You should commit =
your 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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