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Date: Sun, 13 Nov 2011 13:53:51 +0000 (UTC)
From: "Andy Seaborne (Closed) (JIRA)" <jira@apache.org>
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Subject: [jira] [Closed] (JENA-158) QueryCancelledException not being caught
 in Fuseki
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     [ https://issues.apache.org/jira/browse/JENA-158?page=3Dcom.atlassian.=
jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Seaborne closed JENA-158.
------------------------------

   =20
> QueryCancelledException not being caught in Fuseki
> --------------------------------------------------
>
>                 Key: JENA-158
>                 URL: https://issues.apache.org/jira/browse/JENA-158
>             Project: Jena
>          Issue Type: Improvement
>          Components: Fuseki
>            Reporter: Alexander Dutton
>            Assignee: Andy Seaborne
>            Priority: Minor
>             Fix For: Fuseki 0.2.1
>
>         Attachments: jena-158.diff
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> [This is a reformulation of http://mail-archives.apache.org/mod_mbox/incu=
bator-jena-dev/201111.mbox/%3C4EBAA0A3.8%40oucs.ox.ac.uk%3E and following m=
essages]
> When a query times out the client currently receives the following, which=
 doesn't explain much:
> > Error 500: Server Error
> This is the result of a QueryCancelledException being caught at line 107 =
of SPARQL_ServletBase, which has the comment "This should not happen"
> It'd be good if this were explicitly caught and a more user-friendly erro=
r message provided.
> I don't know what HTTP status code should be provided; the SPARQL spec sa=
ys 500, but that upsets me (and Hugh Glaser)=C2=B9. Andy points out that it=
 should be a 5xx status code=C2=B2. I've started a thread on ietf-http-wg a=
sking for something along the lines of a "Request Too Onerous" status code.=
=C2=B3
> =C2=B9 http://lists.w3.org/Archives/Public/public-lod/2011Apr/0259.html
> =C2=B2 http://lists.w3.org/Archives/Public/public-lod/2011Apr/0268.html
> =C2=B3 http://lists.w3.org/Archives/Public/ietf-http-wg/2011OctDec/0188.h=
tml

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