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From "Andy Seaborne (Commented) (JIRA)" <>
Subject [jira] [Commented] (JENA-158) QueryCancelledException not being caught in Fuseki
Date Thu, 10 Nov 2011 17:00:53 GMT


Andy Seaborne commented on JENA-158:

Alex, thanks.

Ping this JIRA when the license grant is sorted out.

> QueryCancelledException not being caught in Fuseki
> --------------------------------------------------
>                 Key: JENA-158
>                 URL:
>             Project: Jena
>          Issue Type: Improvement
>          Components: Fuseki
>            Reporter: Alexander Dutton
>            Priority: Minor
>             Fix For: 2.6.5
>         Attachments: jena-158.diff
>   Original Estimate: 1h
>  Remaining Estimate: 1h
> [This is a reformulation of
and following messages]
> When a query times out the client currently receives the following, which doesn't explain
> > 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 error message provided.
> I don't know what HTTP status code should be provided; the SPARQL spec says 500, but
that upsets me (and Hugh Glaser)¹. Andy points out that it should be a 5xx status code².
I've started a thread on ietf-http-wg asking for something along the lines of a "Request Too
Onerous" status code.³
> ¹
> ²
> ³

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