session.save_path not valid

[ochorocho]

Just tried to install magento using composer.

After composer downloaded and setup everything i opened the page in the browser and get following error:

"session.save_path" is not a valid sessions-related ini setting.

The complete log report:

a:4:{i:0;s:122:""session.save_handler" is not a valid sessions-related ini setting. ini_set(): Cannot find save handler '{{session_save}}'";i:1;s:8573:"#0 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Session/SessionManager.php(181): Magento\Framework\Session\SessionManager->initIniOptions()
#1 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Session/Generic.php(62): Magento\Framework\Session\SessionManager->start('frontend')
#2 [internal function]: Magento\Framework\Session\Generic->__construct(Object(Magento\Framework\App\Request\Http), Object(Magento\Framework\Session\SidResolver\Proxy), Object(Magento\Framework\Session\Config), Object(Magento\Framework\Session\SaveHandler), Object(Magento\Framework\Session\Validator), Object(Magento\Framework\Session\Storage), Object(Magento\Framework\Stdlib\Cookie\PhpCookieManager), Object(Magento\Framework\Stdlib\Cookie\CookieMetadataFactory), 'frontend')
#3 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/ObjectManager/Factory/Factory.php(222): ReflectionClass->newInstanceArgs(Array)
#4 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/ObjectManager/ObjectManager.php(87): Magento\Framework\ObjectManager\Factory\Factory->create('Magento\Frrmeww...')
#5 /var/www/clients/client1/web41/web/var/generation/Magento/Framework/Session/Generic/Proxy.php(84): Magento\Framework\ObjectManager\ObjectManager->get('Magento\Frrmeww...')
#6 /var/www/clients/client1/web41/web/var/generation/Magento/Framework/Session/Generic/Proxy.php(207): Magento\Framework\Session\Generic\Proxy->_getSubject()
#7 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Url.php(865): Magento\Framework\Session\Generic\Proxy->getSessionIdForHost('http://magedev....')
#8 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Url.php(835): Magento\Framework\Url->_prepareSessionUrl('http://magedev....')
#9 /var/www/clients/client1/web41/web/app/code/Magento/Cms/Controller/Router.php(118): Magento\Framework\Url->getUrl('install')
#10 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/App/FrontController.php(58): Magento\Cms\Controller\Router->match(Object(Magento\Framework\App\Request\Http))
#11 [internal function]: Magento\Framework\App\FrontController->dispatch(Object(Magento\Framework\App\Request\Http))
#12 /var/www/clients/client1/web41/web/var/generation/Magento/Framework/App/FrontController/Interceptor.php(48): call_user_func_array(Array, Array)
#13 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(83): Magento\Framework\App\FrontController\Interceptor->___callParent('dispatch', Array)
#14 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(76): Magento\Framework\Interception\Chain\Chain->invokeNext('Magento\Frrmeww...', 'dispatch', Object(Magento\Framework\App\FrontController\Interceptor), Array, 'urlRewrite')
#15 /var/www/clients/client1/web41/web/app/code/Magento/UrlRewrite/App/FrontController/Plugin/UrlRewrite.php(68): Magento\Framework\Interception\Chain\Chain->Magento\Framework\Interception\Chain{closure}(Object(Magento\Framework\App\Request\Http))
#16 [internal function]: Magento\UrlRewrite\App\FrontController\Plugin\UrlRewrite->aroundDispatch(Object(Magento\Framework\App\FrontController\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#17 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(81): call_user_func_array(Array, Array)
#18 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(76): Magento\Framework\Interception\Chain\Chain->invokeNext('Magento\Frrmeww...', 'dispatch', Object(Magento\Framework\App\FrontController\Interceptor), Array, 'requestPreproce...')
#19 /var/www/clients/client1/web41/web/app/code/Magento/Store/App/FrontController/Plugin/RequestPreprocessor.php(114): Magento\Framework\Interception\Chain\Chain->Magento\Framework\Interception\Chain{closure}(Object(Magento\Framework\App\Request\Http))
#20 [internal function]: Magento\Store\App\FrontController\Plugin\RequestPreprocessor->aroundDispatch(Object(Magento\Framework\App\FrontController\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#21 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(81): call_user_func_array(Array, Array)
#22 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(76): Magento\Framework\Interception\Chain\Chain->invokeNext('Magento\Frrmeww...', 'dispatch', Object(Magento\Framework\App\FrontController\Interceptor), Array, 'install')
#23 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Module/FrontController/Plugin/Install.php(79): Magento\Framework\Interception\Chain\Chain->Magento\Framework\Interception\Chain{closure}(Object(Magento\Framework\App\Request\Http))
#24 [internal function]: Magento\Framework\Module\FrontController\Plugin\Install->aroundDispatch(Object(Magento\Framework\App\FrontController\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#25 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(81): call_user_func_array(Array, Array)
#26 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(76): Magento\Framework\Interception\Chain\Chain->invokeNext('Magento\Frrmeww...', 'dispatch', Object(Magento\Framework\App\FrontController\Interceptor), Array, 'dispatchExcepti...')
#27 /var/www/clients/client1/web41/web/app/code/Magento/Store/App/FrontController/Plugin/DispatchExceptionHandler.php(71): Magento\Framework\Interception\Chain\Chain->Magento\Framework\Interception\Chain{closure}(Object(Magento\Framework\App\Request\Http))
#28 [internal function]: Magento\Store\App\FrontController\Plugin\DispatchExceptionHandler->aroundDispatch(Object(Magento\Framework\App\FrontController\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#29 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(81): call_user_func_array(Array, Array)
#30 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(76): Magento\Framework\Interception\Chain\Chain->invokeNext('Magento\Frrmeww...', 'dispatch', Object(Magento\Framework\App\FrontController\Interceptor), Array, 'front-controlle...')
#31 /var/www/clients/client1/web41/web/app/code/Magento/PageCache/Model/App/FrontController/VarnishPlugin.php(79): Magento\Framework\Interception\Chain\Chain->Magento\Framework\Interception\Chain{closure}(Object(Magento\Framework\App\Request\Http))
#32 [internal function]: Magento\PageCache\Model\App\FrontController\VarnishPlugin->aroundDispatch(Object(Magento\Framework\App\FrontController\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#33 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/Interception/Chain/Chain.php(81): call_user_func_array(Array, Array)
#34 /var/www/clients/client1/web41/web/var/generation/Magento/Framework/App/FrontController/Interceptor.php(88): Magento\Framework\Interception\Chain\Chain->invokeNext('Magento\Frrmeww...', 'dispatch', Object(Magento\Framework\App\FrontController\Interceptor), Array, 'front-controlle...')
#35 /var/www/clients/client1/web41/web/app/code/Magento/PageCache/Model/App/FrontController/BuiltinPlugin.php(93): Magento\Framework\App\FrontController\Interceptor->Magento\Framework\App\FrontController{closure}(Object(Magento\Framework\App\Request\Http))
#36 [internal function]: Magento\PageCache\Model\App\FrontController\BuiltinPlugin->aroundDispatch(Object(Magento\Framework\App\FrontController\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#37 /var/www/clients/client1/web41/web/var/generation/Magento/Framework/App/FrontController/Interceptor.php(93): call_user_func_array(Array, Array)
#38 /var/www/clients/client1/web41/web/var/generation/Magento/Framework/App/FrontController/Interceptor.php(115): Magento\Framework\App\FrontController\Interceptor->___call('dispatch', Array, Array)
#39 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/App/Http.php(120): Magento\Framework\App\FrontController\Interceptor->dispatch(Object(Magento\Framework\App\Request\Http))
#40 /var/www/clients/client1/web41/web/lib/internal/Magento/Framework/App/EntryPoint/EntryPoint.php(80): Magento\Framework\App\Http->launch()
#41 /var/www/clients/client1/web41/web/index.php(37): Magento\Framework\App\EntryPoint\EntryPoint->run('Magento\Frrmeww...')
#42 {main}";s:3:"url";s:16:"/index.php/setup";s:11:"script_name";s:10:"/index.php";}

Server is running on CentOS 6.5 and PHP 5.4.

How can i get around this issue?

Cheers,
ochorocho

[verklov]

@ochorocho, thanks for letting us know of this issue! The team will review it and we will get back to you once we have it resolved.

[dsikkema]

@ochorocho , could you provide some more details on how to reproduce the problem? I tried a few different way and could not. The following information might be helpful:

1. What codebase and composer.json file were you using?
2. What page did you try to access?
3. What messages, if any, did composer produce during/after installation?
4. What is the full php version.. 5.4.xx?

[ochorocho]

@ColdGreenTea thanks for your response ....

1. Only the first (important) part of the composer file:
   "name": "magento/project-community-edition",
   "description": "Magento project (Community Edition)",
   "type": "project",
   "version": "0.1.0-alpha92",
2. any ... Fronend (home), Backend domain.de/admin
3. just normal Composer download/checkout stuff ... no issues at all iirc, i can reinstall if you need detailed information.
4. PHP 5.4.32 (cli) (built: Aug 21 2014 07:33:35)

Cheers,
ochorocho

[dsikkema]

@ochorocho thank you for the information.
I have reproduced the problem.

Just to be clear, your error is: " "session.save_handler" is not a valid sessions-related ini setting." - right? As opposed to session.save_path (which did not appear in the log report you posted)?

If the problem is session.save_handler, it may be the session.auto_start setting in your php.ini. This must be set to 0, or else the problem will appear. See details:
http://php.net/manual/en/function.session-set-save-handler.php#68943

If session.auto_start is enabled, please disable it in php.ini and restart your server. That should resolve the issue. (You may need to remove the vendor directory, remove composer.lock, and reinstall Magento to clear out the old settings).

Please let me know whether session.auto_start was indeed the root cause.

Cheers,
coldgreentea

[ochorocho]

it was session.save_path issue.
I removed the whole installation. i cant reproduce the error. :-(
But the setting were as described: session.auto_start=0

Now i get the a "redirecting error":
http://magedev.knallimall.org/

Document root is pub/.

Cheers,
ochorocho

[verklov]

@ochorocho, the team has fixed this issue. The code with the fix is now available in the repository in code version 0.1.0-alpha97. We are closing this ticket now.