<meta charset="utf-8"><span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; ">I'm experiencing some very frustrating issues with ZODB blob storage and am wondering if anyone has a pointer for me here.<div>
<br></div><div>Basically, if we try to migrate a lot of our files to blobs or import/move large amounts of blob files, we'll get this error:</div><div><br></div><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; ">
<span style="white-space: pre-wrap; "> </span>invalidations out of order, None < '\x03\x88\xf8c^\x8eG\xdd'</blockquote><div><br></div><div>I've found <a href="http://plone.293351.n2.nabble.com/plone-app-blob-migration-ARFilePreview-and-AROfficeTransforms-in-a-Plone-3-x-ZEO-cluster-sharing-they-td4291640.html" target="_blank" style="color: rgb(20, 125, 186); ">http://plone.293351.n2.nabble.com/plone-app-blob-migration-ARFilePreview-and-AROfficeTransforms-in-a-Plone-3-x-ZEO-cluster-sharing-they-td4291640.html</a> and <a href="https://bugs.launchpad.net/zodb/+bug/509801" target="_blank" style="color: rgb(20, 125, 186); ">https://bugs.launchpad.net/zodb/+bug/509801</a> </div>
<div><br></div><div>I'm running ZODB 3.8.5 on the zeo clients with Plone and Zope 2.10.11 and ZODB 3.9.5 on the zeoserver(we're running ZRS which requires ZODB 3.9 series--that's why it's different). I had thought the once we moved to ZODB 3.9.5 that this problem would disappear according the the resources I found; however, it seems that they are still present--turns out it's a client problem... We can't move the clients to zodb 3.9.5 since Zope 2.10.11 is not compatible with it.</div>
<div><br></div><div>Anyways, I was wondering if anyone has had some suggested resolutions to the problem. Is it safe to drop the client's zodb version down to 3.8.4 so where the problem doesn't seem to exist? Or is it possible to backport the fix to a 3.8.6 release perhaps? I'm not entirely familiar with the zodb code, but I'd be willing to do the work if that was the only option.</div>
<div><br></div><div><br></div><div>Thanks,</div><div>Nathan</div></span>