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Subject: Re: ArchiveViewer
From: Kay-Uwe Kasemir <kasemirk@ornl.gov>
To: tech talk <tech-talk@aps.anl.gov>
Date: Fri, 28 Apr 2006 08:56:27 -0400

On Apr 28, 2006, at 08:36 , mattei wrote:


Hi all,
I have built the Channel Archiver with base-3.14.8 under RHEL4.
Everything seems to be working : I have checked the files with
ArchiveDataClient.pl and ArchiveExport.
Now I want to use the java ArchiveViewer. I can connect to the
URL of my data server and choose some PV channels but when
I ask for the "plot" I have the following error :

"java.lang.Exception: Couldn't execute the archiver.values request
 java.io.IOException: org.xml.sax.SAXParseException: expected Element"

Though you've checked with the ArchiveDataClient.pl, the error message still looks to me as if the java viewer isn't really talking to the data server. So it gets some web server error message, or maybe some html document, instead of the expected XML response.

Please try the telnet check described in the
"Data Server", "Testing, Debugging"
section of the manual:

 telnet mywebserverhost 80
 GET /archive/cgi/ArchiveDataServer.cgi HTTP/1.0<RETURN>
 <RETURN>

You should see an error message about ``XML-RPC Fault: Expected HTTP method POST'',
indicating that the data server was launched correctly and
was looking for a proper XML-RPC request.
...


Also check the file /tmp/archserver.log on your data server host.
Per default, the archive data server will append to it whenever run.
So it'll tell you if and how the data server is invoked in response to
the java client requests.

-Kay
Replies:
Re: ArchiveViewer mattei
References:
ArchiveViewer mattei

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