Re: [Exist-open] existdb errors on xQueries

[Michael W. <wes...@ja...>]

Hi Seena,

The return type error is an easy one to fix. The function declaration
expects to always return 1 and only 1 configuration. But it is getting none.

If returning no configuration is an option, redefine the function as:

```xquery
declare function config:get-configuration() as element(configuration)? {
  ...
};
```

If it should always return a configuration, then you need to determine why
it is not finding the configuration. Since you aren't passing a parameter
into the function, it doesn't appear to be something on a per-user basis --
so there should always be the global configuration.

Hope this helps point you in the right direction.

Take care.





2025年6月10日(火) 22:08 Sanil, Seena via Exist-open <
exi...@li...>:

> Also errors like this “
>
> exerr:*ERROR* The actual return type does not match the sequence type
> declared in the function's signature: config:get-configuration() as
> element(configuration). Expected cardinality: exactly one, got 0. [at line
> 42, column 42, source: /db/apps/eXide/controller.xq]\nIn
> function:\n\tconfig:get-configuration() as element(configuration)”
>
>
>
> *From: *Sanil, Seena <ss...@bl...>
> *Date: *Monday, June 9, 2025 at 7:44 PM
> *To: *eXist DB ML <exi...@li...>
> *Cc: *Lubey, Brian <bl...@bl...>, Mulvaney, Michael <
> MMu...@bl...>
> *Subject: *existdb errors on xQueries
>
> Hello,
>
> We are getting some errors while running xQuery’s  all at once against
> our eXist database with 1.3 million files from different clients like
> browser, oxygen desktop, Postman.
>
>
>
> The errors are “Error while processing /exist/xmlrpc: An unknown error
> occurred: org.apache.xmlrpc.XmlRpcException: I/O error while processing
> request”. . After that, the existdb instance hosted in the the cloud is
> not coming up. Is there a reason for this behavior? How do we avoid this in
> the future?
>
>
>
> The xQuery we used are :
>
> _query=//cite.bna.reference&_howmany=1000 , on a collection
>
>
>
> Thanks
>
> Seena Sanil
>
>
>
>
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-- 
Michael Westbay
Writer/System Administrator
http://www.japanesebaseball.com/