Because it's curl, it is sending the length.

Content-Length is necessary for keeping connections open (even if, here, curl isn't doing that).

Sending data without Content-Length is a one-time us of connection, which can be dropped.

If you are using curl as shown, there are no problems - the connection is dropped on exit anyway

Could you please raise a JIRA ticket?

This isn't a point fix (though the fix looks straight forward) - there needs to be checking in the client libraries as well.

Send my thanks to your technical support people.

    Andy

On 04/03/2020 15:23, Mikael Pesonen wrote:

The error is

[2020-03-04 16:51:56] Fuseki     INFO  [553] POST http://insight-dev.lingsoft.fi/ds?graph=https://resource.lingsoft.fi/graph/lsauth-demo [2020-03-04 16:51:56] Fuseki     ERROR [line: 1, col: 34] Undefined prefix: ebucore [2020-03-04 16:51:56] Fuseki     INFO  [553] 400 Parse error: [line: 1, col: 34] Undefined prefix: ebucore (4 ms)

So it wouldn't seem odd to me if Fuseki returned the error as soon as it sees it, since rest of the 40k of data won't affect the error.


On 04/03/2020 16.43, Andy Seaborne wrote:
What makes your tech support think that?
What operation is being called?

    Andy

On 04/03/2020 13:36, Mikael Pesonen wrote:

Hi,

We have reverse proxy on Fuseki.

I'm getting this error occasionally when posting data to fuseki dataset endpoint and data is containing some error. Instead of Fuseki response 400 client gets 502. Our technical support thinks this might be because Fuseki sends respond before receiving the entire data and reverse proxy doesn't know how to handle that.

Any ideas how to handle this? Is there a setting that makes Fuseki wait for entore input before response?

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>502 Bad Gateway</title>
</head><body>
<h1>Bad Gateway</h1>
<p>The proxy server received an invalid
response from an upstream server.<br />
</p>
<hr>
<address>Apache/2.4.18 (Ubuntu) Server at xxx.fi Port
443</address>
</body></html>

Thanks!


Reply via email to