Seems to be a problem with the session. Do you know what the session store sys pref (SessionStorage) is set to? If not you can get that from the database in the systempreferences table.

If it's "tmp", then I would suggest deleting all the files in the session store directory (/var/lib/koha/[instance]/tmp/cgisess_koha_[instance]/)

If it's "mysql", then you should be able to delete everything from the session table.

That's something to try anyway.

System Preferences can be changed in the database too, when the Staff interface isn't working; like in this case. You will need to restart the memcached service to flush the changed sys pref. Might need to "koha-plack --restart [instance]" as well.

On Thu, Sep 2, 2021 at 7:22 AM Michael Kuhn <mik@adminkuhn.ch> wrote:

Hi

As written on this list on 26 August I tried to install Koha 21.05.03
but after the installation Koha said the installed version was
"21.05.02.003". Jonathan Druart wrote this comes from

commit 8ea80995c590dad86c43df636456640d3aa84bab
Increment version for 21.05.03 release

-$VERSION = "21.05.02.002";
+$VERSION = "21.05.02.003";

Today I updated a Koha 18.11.05 database into this Koha 21.05.02.003
installation. After restarting memcached I executed "sudo
koha-upgrade-schema instancename" - the output looked OK and ended with
the following lines:

Upgrade to 21.05.02.000 done [12:15:20]: Koha 21.05.02 release
Upgrade to 21.05.02.001 done [12:15:20]: Bug 28567 - Set to NULL empty
branches fields
Upgrade to 21.05.02.002 done [12:15:20]: Bug 28813 - Update
delivery_note to failure_code in message_queue
Upgrade to 21.05.02.003 done [12:15:20]: Bug 28872 - Update syspref
values from on and off to 1 and 0

It seems even if I installed Koha 21.05.03 it only upgraded to Koha
21.05.02.

I don't know if there is any connection but whatever, I was able to open
the staff client and to login - but as soon as I click on any link I'm
logged out immediately. I am able to login again and then advance to the
next link but then I'm logged out again etc ad infinitum. It is not
possible to change any system preference (internal server error) or
search for any users.

File "plack-error.log" sometimes tells me, without a timestamp:

new(): failed: query object HASH(0x555f47cfad30) does not support
cookie() and param() methods: Can't call method "cookie" on unblessed
reference at /usr/share/perl5/CGI/Session.pm line 707.

File "plack-intranet-error.log" says:

[2021/09/02 13:33:36] [WARN] Odd number of elements in anonymous hash
at /usr/share/koha/intranet/cgi-bin/catalogue/search.pl line 577.

Can anyone please give me a hint how to solve this problem?

Best wishes: Michael
--
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