[Koha-bugs] [Bug 30949] Error 500 in z3950_search.pl

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=30949

Esther Melander <estherm at sodaspringsid.com> changed:

           What    |Removed                     |Added
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                 CC|                            |estherm at sodaspringsid.com

--- Comment #3 from Esther Melander <estherm at sodaspringsid.com> ---
This problem recently appeared for for our library.

To reproduce:
1. Set up Seattle Public Library as a search target
Host:   zserver.spl.org
Port:   210
DN:     horizon

2. Edit a bibliographic record in the advanced editor and then click on
Advanced Search to search for a new record to overlay the original. Be sure to
have Seattle Public Library selected as a search target as well as Library of
Congress.

3. Perform the search using an ISBN search.

Search results should be returned from Library of Congress.

4. Repeat the search but do a title search instead.

No search results are returned and instead the Error 500 pops up.

Repeat the above searches with the z3950 search in the basic editor. No Error
500 occurs with either an ISBN search or a title search.

After some investigation it appears that Seattle has migrated to a new platform
and their z3950 protocol no longer works. 

It seems that in the cases where there was no server error, the z3950 search
ignored or skipped the lack of response from Seattle whereas the advanced
search in the advanced editor created a stop when there was no response. We
would not have known about the problem without the server error, so in that
sense it was helpful in at least alerting us to a problem.

It may be helpful to change the Error 500 response message to something that
makes it clear there is no response from a search target. There should be
consistent behavior across all z3950 searches in the system. It would also be
nice to have a test tool in the z3950 setup to be able to test the targets
periodically.

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