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<p class="MsoNormal">Trevor,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">After some help from Mark Triggs, and some digging into logs, it looks like our issue is overlapping login sessions from an application authenticating really often.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Patrick<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Galligan, Patrick <PGalligan@rockarch.org><br>
<b>Date: </b>Thursday, December 2, 2021 at 1:48 PM<br>
<b>To: </b>Archivesspace Users Group <archivesspace_users_group@lyralists.lyrasis.org><br>
<b>Subject: </b>Re: [Archivesspace_Users_Group] Optimistic locking error<o:p></o:p></span></p>
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<p class="MsoNormal">We’re on version 2.8.0, and we were going to upgrade to 3.1.1 over the weekend.
<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Can confirm that it’s not causing performance issues, but is inflating the logs like crazy.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">archivesspace_users_group-bounces@lyralists.lyrasis.org <archivesspace_users_group-bounces@lyralists.lyrasis.org> on behalf of Trevor Thornton <trthorn2@ncsu.edu><br>
<b>Date: </b>Thursday, December 2, 2021 at 1:46 PM<br>
<b>To: </b>Archivesspace Users Group <archivesspace_users_group@lyralists.lyrasis.org><br>
<b>Subject: </b>Re: [Archivesspace_Users_Group] Optimistic locking error</span><o:p></o:p></p>
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<p class="MsoNormal" style="line-height:13.0pt"><b><span style="font-size:12.0pt">***External***</span></b><em><span style="font-size:12.0pt;font-family:"Calibri",sans-serif"> This email originated from outside of the organization. Do not click links or open
attachments unless you recognize the sender and know the content is safe.***</span></em><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"> <o:p></o:p></p>
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<p class="MsoNormal">I can confirm that this is a thing, at least it's happening to me as well (we're on v2.8.1 still). It isn't affecting performance from what I can tell, but the lock_version value for the user keeps getting higher (currently over 370000).
At some point I shut down AS, reset the lock_version to 0, and restarted, and it just started doing it again.
<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">It doesn't seem to be causing any other problems, but it does fill up the logs, and it's annoying. What version are you on? We're getting ready to upgrade and I was hoping the problem would magically go away when we did. <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">On Thu, Dec 2, 2021 at 1:11 PM Galligan, Patrick <<a href="mailto:PGalligan@rockarch.org">PGalligan@rockarch.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Peter,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Unfortunately that’s an empty set. It seems like the lock_version is constantly changing for this record. I’m not sure why.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">-Patrick<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black"><a href="mailto:archivesspace_users_group-bounces@lyralists.lyrasis.org" target="_blank">archivesspace_users_group-bounces@lyralists.lyrasis.org</a> <<a href="mailto:archivesspace_users_group-bounces@lyralists.lyrasis.org" target="_blank">archivesspace_users_group-bounces@lyralists.lyrasis.org</a>>
on behalf of Peter Heiner <<a href="mailto:ph448@cam.ac.uk" target="_blank">ph448@cam.ac.uk</a>><br>
<b>Date: </b>Thursday, December 2, 2021 at 12:41 PM<br>
<b>To: </b>Archivesspace Users Group <<a href="mailto:archivesspace_users_group@lyralists.lyrasis.org" target="_blank">archivesspace_users_group@lyralists.lyrasis.org</a>><br>
<b>Subject: </b>Re: [Archivesspace_Users_Group] Optimistic locking error</span><o:p></o:p></p>
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<b><span style="font-size:12.0pt">***External***</span></b><em><span style="font-size:12.0pt;font-family:"Calibri",sans-serif"> This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and
know the content is safe.***</span></em><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi Patrick,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">What does<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">SELECT * FROM `user` <span style="color:black;background:white">WHERE ((`id` = 113) AND (`lock_version` = 1271));</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black;background:white">say?</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">p<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="color:black">From:</span></b><span style="color:black">
<a href="mailto:archivesspace_users_group-bounces@lyralists.lyrasis.org" target="_blank">
archivesspace_users_group-bounces@lyralists.lyrasis.org</a> <<a href="mailto:archivesspace_users_group-bounces@lyralists.lyrasis.org" target="_blank">archivesspace_users_group-bounces@lyralists.lyrasis.org</a>> on behalf of Galligan, Patrick <<a href="mailto:PGalligan@rockarch.org" target="_blank">PGalligan@rockarch.org</a>><br>
<b>Sent:</b> 02 December 2021 16:57<br>
<b>To:</b> Archivesspace Users Group <<a href="mailto:archivesspace_users_group@lyralists.lyrasis.org" target="_blank">archivesspace_users_group@lyralists.lyrasis.org</a>><br>
<b>Subject:</b> [Archivesspace_Users_Group] Optimistic locking error</span> <o:p>
</o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in">Hi all,<o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in"> <o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in">I’m trying to diagnose and fix a warning I’m seeing in our AS log files every 12 or 13 seconds:<o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in"> <o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in">Got an optimistic locking error when updating user: Attempt to update object did not result in a single row modification (SQL: UPDATE `user` SET `system_mtime` = '2021-12-02 16:52:37', `user_mtime`
= '2021-12-02 16:52:37', `lock_version` = 1272 WHERE ((`id` = 113) AND (`lock_version` = 1271)) LIMIT 1)<o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in"> <o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in">I can delete the user, but if I remake it with the same username, the warning comes back. If I leave the user open for editing, I get the “This record has been updated by another user. Please
refresh the page to access the latest version,” message in the UI.<o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in"> <o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in">Any idea how to fix this issue? I’d prefer to be able to keep the username the same. I’m not sure why the system thinks there are two different lock versions associated with the record.<o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in"> <o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in">Thanks,<o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in">Patrick Galligan<o:p></o:p></p>
<p class="gmail-m7057321681444689493xmsonormal" style="margin:0in">Rockefeller Archive Center<o:p></o:p></p>
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<p class="MsoNormal">_______________________________________________<br>
Archivesspace_Users_Group mailing list<br>
<a href="mailto:Archivesspace_Users_Group@lyralists.lyrasis.org" target="_blank">Archivesspace_Users_Group@lyralists.lyrasis.org</a><br>
<a href="http://lyralists.lyrasis.org/mailman/listinfo/archivesspace_users_group" target="_blank">http://lyralists.lyrasis.org/mailman/listinfo/archivesspace_users_group</a><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:#666666;background:white">Trevor Thornton</span>
<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:#666666;background:white">Applications Developer, Digital Library Initiatives</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:#666666;background:white">North Carolina State University Libraries</span><o:p></o:p></p>
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