[Koha-bugs] [Bug 12025] Inventory tool fails with "Could not reads headers", or sometimes a timeout

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

http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=12025

--- Comment #2 from Galen Charlton <gmcharlt at gmail.com> ---
This bug depends on the number of item records in the database.

When you upload a file of barcodes, and do not specify any filters on the rest
of the form, it effectively runs GetItemsForInventory() such that *every* item
in the database is returned.  On a large enough database, this takes so long
that the script times out.

The current documentation in the manual implies that if you upload a file of
barcodes, the *only* thing it does is set the date-last-seen field.  This is
not entirely true; it also tries to compare the list of scanned items to what
is expected to be seen in the list of items.

The work-around for libraries with a large number of item records is to, when
uploading a file of barcodes, to also set the filters (e.g., library, shelving
location, call number range, etc.) to specify the range of items that the file
of barcodes corresponds to.

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