Upgrade to Magento 2.2.1 - Unable to unserialize value

[jpDab]

Hi,

I'm facing "Unable to unserialize valu"

Exception #0 (InvalidArgumentException): Unable to unserialize value.
#0 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/module-eav/Model/Attribute.php(109): Magento\Framework\Serialize\Serializer\Json->unserialize('a:2:{s:15:"max_...')
#1 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/module-customer/Model/AttributeMetadataConverter.php(90): Magento\Eav\Model\Attribute->getValidateRules()
#2 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/module-customer/Model/Metadata/CustomerMetadata.php(77): Magento\Customer\Model\AttributeMetadataConverter->createMetadataAttribute(Object(Magento\Customer\Model\Attribute))
#3 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/module-customer/Model/Metadata/CachedMetadata.php(71): Magento\Customer\Model\Metadata\CustomerMetadata->getAttributeMetadata('firstname')
#4 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/module-customer/Block/Widget/AbstractWidget.php(99): Magento\Customer\Model\Metadata\CachedMetadata->getAttributeMetadata('firstname')
#5 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/module-customer/Block/Widget/Name.php(203): Magento\Customer\Block\Widget\AbstractWidget->_getAttribute('firstname')
#6 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/module-customer/Block/Widget/Name.php(230): Magento\Customer\Block\Widget\Name->_getAttribute('firstname')
#7 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/module-customer/view/frontend/templates/widget/name.phtml(69): Magento\Customer\Block\Widget\Name->getStoreLabel('firstname')
#8 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/TemplateEngine/Php.php(59): include('/hsphere/local/...')
#9 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Element/Template.php(270): Magento\Framework\View\TemplateEngine\Php->render(Object(Magento\Customer\Block\Widget\Name), '/hsphere/local/...', Array)
#10 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Element/Template.php(300): Magento\Framework\View\Element\Template->fetchView('/hsphere/local/...')
#11 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Element/AbstractBlock.php(667): Magento\Framework\View\Element\Template->_toHtml()
#12 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/module-customer/view/frontend/templates/form/register.phtml(20): Magento\Framework\View\Element\AbstractBlock->toHtml()
#13 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/TemplateEngine/Php.php(59): include('/hsphere/local/...')
#14 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Element/Template.php(270): Magento\Framework\View\TemplateEngine\Php->render(Object(Magento\Customer\Block\Form\Register), '/hsphere/local/...', Array)
#15 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Element/Template.php(300): Magento\Framework\View\Element\Template->fetchView('/hsphere/local/...')
#16 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Element/AbstractBlock.php(667): Magento\Framework\View\Element\Template->_toHtml()
#17 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(558): Magento\Framework\View\Element\AbstractBlock->toHtml()
#18 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(534): Magento\Framework\View\Layout->_renderBlock('customer_form_r...')
#19 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(206): Magento\Framework\View\Layout->renderNonCachedElement('customer_form_r...')
#20 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(489): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('customer_form_r...')
#21 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(193): Magento\Framework\View\Layout->renderElement('customer_form_r...', true)
#22 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(585): Magento\Framework\View\Layout\Interceptor->renderElement('customer_form_r...')
#23 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(536): Magento\Framework\View\Layout->_renderContainer('content')
#24 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(206): Magento\Framework\View\Layout->renderNonCachedElement('content')
#25 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(489): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('content')
#26 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(193): Magento\Framework\View\Layout->renderElement('content', true)
#27 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(585): Magento\Framework\View\Layout\Interceptor->renderElement('content')
#28 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(536): Magento\Framework\View\Layout->_renderContainer('main')
#29 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(206): Magento\Framework\View\Layout->renderNonCachedElement('main')
#30 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(489): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('main')
#31 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(193): Magento\Framework\View\Layout->renderElement('main', true)
#32 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(585): Magento\Framework\View\Layout\Interceptor->renderElement('main')
#33 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(536): Magento\Framework\View\Layout->_renderContainer('columns')
#34 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(206): Magento\Framework\View\Layout->renderNonCachedElement('columns')
#35 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(489): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('columns')
#36 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(193): Magento\Framework\View\Layout->renderElement('columns', true)
#37 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(585): Magento\Framework\View\Layout\Interceptor->renderElement('columns')
#38 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(536): Magento\Framework\View\Layout->_renderContainer('main.content')
#39 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(206): Magento\Framework\View\Layout->renderNonCachedElement('main.content')
#40 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(489): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('main.content')
#41 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(193): Magento\Framework\View\Layout->renderElement('main.content', true)
#42 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(585): Magento\Framework\View\Layout\Interceptor->renderElement('main.content')
#43 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(536): Magento\Framework\View\Layout->_renderContainer('page.wrapper')
#44 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(206): Magento\Framework\View\Layout->renderNonCachedElement('page.wrapper')
#45 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(489): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('page.wrapper')
#46 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(193): Magento\Framework\View\Layout->renderElement('page.wrapper', true)
#47 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(585): Magento\Framework\View\Layout\Interceptor->renderElement('page.wrapper')
#48 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(536): Magento\Framework\View\Layout->_renderContainer('root')
#49 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(206): Magento\Framework\View\Layout->renderNonCachedElement('root')
#50 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(489): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement('root')
#51 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(193): Magento\Framework\View\Layout->renderElement('root', true)
#52 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Layout.php(954): Magento\Framework\View\Layout\Interceptor->renderElement('root')
#53 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\Layout->getOutput()
#54 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\View\Layout\Interceptor->___callParent('getOutput', Array)
#55 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\Layout\Interceptor->Magento\Framework\Interception\{closure}()
#56 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Layout/Interceptor.php(494): Magento\Framework\View\Layout\Interceptor->___callPlugins('getOutput', Array, Array)
#57 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Result/Page.php(257): Magento\Framework\View\Layout\Interceptor->getOutput()
#58 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/View/Result/Layout.php(170): Magento\Framework\View\Result\Page->render(Object(Magento\Framework\App\Response\Http\Interceptor))
#59 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\Result\Layout->renderResult(Object(Magento\Framework\App\Response\Http\Interceptor))
#60 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\View\Result\Page\Interceptor->___callParent('renderResult', Array)
#61 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\Result\Page\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Response\Http\Interceptor))
#62 /hsphere/local/home/forevera/foreveramber.biz/generated/code/Magento/Framework/View/Result/Page/Interceptor.php(130): Magento\Framework\View\Result\Page\Interceptor->___callPlugins('renderResult', Array, Array)
#63 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/App/Http.php(139): Magento\Framework\View\Result\Page\Interceptor->renderResult(Object(Magento\Framework\App\Response\Http\Interceptor))
#64 /hsphere/local/home/forevera/foreveramber.biz/vendor/magento/framework/App/Bootstrap.php(256): Magento\Framework\App\Http->launch()
#65 /hsphere/local/home/forevera/foreveramber.biz/index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http))
#66 {main}

 error after upgrading to Magento 2.2.1 in customer_module.

Disabled all custom modules, error coming up when trying to create a customer in frontend and in backend when try to list all customers..

Could I just delete customers from DB tables to resolve this issu?

Thanks

Peter

[jpDab · Accepted solution]

The problem is in /vendor/magento/framework/Serialize/Serializer/Json.php

and I used the solution in below link. Changing a code in json.php

It working fine for now.

https://magento.stackexchange.com/questions/194010/magento-2-2-unable-to-unserialize-value

[PKS Store]

This answer above was helpful, though the issue stemmed from data cached in redis which was stored serialized instead of as a JSON array. This was the actual solution in my case: <a href="https://magento.stackexchange.com/a/196825/48552 ">https://magento.stackexchange.com/a/196825/48552 </a>

redis-cli flushall

Now we have 3 different redis instances on different ports so also had to use the -p xxxx parameter. 

[AndyAJ]

I just upgraded from 2.2.1 to 2.2.3 and this issue came back for me.

Before the upgrade the solution of replacing the Json.php code was working for me, now it results in me getting HTTP ERROR 500 on most pages.

[nielnijns]

Did you find a solution for you 500 error problem after changing the json.php file? I got the same...