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April 2022

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Subject:
From:
Terry Reese <[log in to unmask]>
Reply To:
MarcEdit support in technical and instructional matters <[log in to unmask]>
Date:
Tue, 26 Apr 2022 13:47:13 -0400
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text/plain
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LC isn't a great resource to be doing batch searching.  LC enforces limits to number of queries per minute and records per session.  If you are doing concurrent queries, you'll hit the limits and results may vary as a result.

--tr

-----Original Message-----
From: MarcEdit support in technical and instructional matters <[log in to unmask]> On Behalf Of John Dickson
Sent: Tuesday, April 26, 2022 1:35 PM
To: [log in to unmask]
Subject: [MARCEDIT-L] Inconsistent Z39.50 results from LC

Hi all, 

I'm new to the Z39.50/SRU Client, and I'm getting inconsistent results when I try to get records from LC when performing a batch search. 

On my first search with 187 ISBNs, 20 records were retrieved. I then reran the ISBNs from the "Zero Results" list, and got 6 results. I repeated that process twice more and got 2 and 1 additional records. There doesn't seem to be a pattern to where in the list false negatives occur. 

Are there any common settings errors that would cause these inconsistent results? 

~John Dickson

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