[BUG] Separate FE and BE session storages cause 1484389971 Exception by calling Index*Action

[dkd-kaehm]

*On systems with separate storages for Backend and Frontend, each call of IndexActions from Backend cause error 1484389971: Cannot update non-existing record.**

This happens because the storage for FE will be queried for a session id which is stored in BE storage and TSFE is initialized.

#1484389971: Cannot update non-existing record (More information)

TYPO3\CMS\Core\Session\Backend\Exception\SessionNotUpdatedException thrown in file
/var/www/vagrant/htdocs/typo3_src/typo3/sysext/core/Classes/Session/Backend/RedisSessionBackend.php in line 199.

20 TYPO3\CMS\Core\Session\Backend\RedisSessionBackend::update("502af1f1d8670efc6d5a275feaabbcc3", array)

/var/www/vagrant/htdocs/typo3_src/typo3/sysext/core/Classes/Authentication/AbstractUserAuthentication.php:
01331:         $updatedSession = $this->getSessionBackend()->update(
01332:             $this->id,
01333:             ['ses_data' => $this->user['ses_data']]
01334:         );
01335:         $this->user = array_merge($this->user ?? [], $updatedSession);

19 TYPO3\CMS\Core\Authentication\AbstractUserAuthentication::setAndSaveSessionData("extbase.flashmessages.tx_solr_searchbackend_solrindexqueue", array)

/var/www/vagrant/htdocs/typo3_src/typo3/sysext/core/Classes/Messaging/FlashMessageQueue.php:
00147:     protected function storeFlashMessagesInSession(array $flashMessages = null)
00148:     {
00149:         $this->getUserByContext()->setAndSaveSessionData($this->identifier, $flashMessages);
00150:     }
00151: 

18 TYPO3\CMS\Core\Messaging\FlashMessageQueue::storeFlashMessagesInSession(array)

/var/www/vagrant/htdocs/typo3_src/typo3/sysext/core/Classes/Messaging/FlashMessageQueue.php:
00095:         $queuedFlashMessages = $this->getFlashMessagesFromSession();
00096:         $queuedFlashMessages[] = $message;
00097:         $this->storeFlashMessagesInSession($queuedFlashMessages);
00098:     }
00099: 

17 TYPO3\CMS\Core\Messaging\FlashMessageQueue::addFlashMessageToSession(TYPO3\CMS\Core\Messaging\FlashMessage)

/var/www/vagrant/htdocs/typo3_src/typo3/sysext/core/Classes/Messaging/FlashMessageQueue.php:
00063:         }
00064:         if ($message->isSessionMessage()) {
00065:             $this->addFlashMessageToSession($message);
00066:         } else {
00067:             parent::enqueue($message);

16 TYPO3\CMS\Core\Messaging\FlashMessageQueue::enqueue(TYPO3\CMS\Core\Messaging\FlashMessage)

/var/www/vagrant/htdocs/typo3_src/typo3/sysext/extbase/Classes/Mvc/Controller/AbstractController.php:
00189:             $storeInSession
00190:         );
00191:         $this->controllerContext->getFlashMessageQueue()->enqueue($flashMessage);
00192:     }
00193: 

15 TYPO3\CMS\Extbase\Mvc\Controller\AbstractController::addFlashMessage("Indexing from the backend was finished successful.", "Manual Indexing", 0)

/var/www/vagrant/htdocs/typo3conf/ext/solr/Classes/Controller/Backend/Search/IndexQueueModuleController.php:
00257:             LocalizationUtility::translate($label, 'Solr'),
00258:             LocalizationUtility::translate('solr.backend.index_queue_module.flashmessage.index_manual', 'Solr'),
00259:             $severity
00260:         );
00261: 
.....

By monitoring redis server you'll see following:

Backend Database = 2 Frontend Database = 3

1522765214.002615 [0 127.0.0.1:35458] "SELECT" "2" #### Is just fine, Backend is choosen
1522765214.002950 [2 127.0.0.1:35458] "GET" "typo3_ses_BE_06cb28061e42f995b27765f3757a9512c20ece17_502af1f1d8670efc6d5a275feaabbcc3"
1522765214.033764 [2 127.0.0.1:35458] "GET" "typo3_ses_BE_06cb28061e42f995b27765f3757a9512c20ece17_502af1f1d8670efc6d5a275feaabbcc3"
1522765214.042164 [2 127.0.0.1:35458] "GET" "typo3_ses_BE_06cb28061e42f995b27765f3757a9512c20ece17_502af1f1d8670efc6d5a275feaabbcc3"
1522765214.042332 [2 127.0.0.1:35458] "SET" "typo3_ses_BE_06cb28061e42f995b27765f3757a9512c20ece17_502af1f1d8670efc6d5a275feaabbcc3" "{\"ses_id\":\"502af1f1d8670efc6d5a275feaabbcc3\",\"ses_iplock\":\"192.168.156.1\",\"ses_userid\":3,\"ses_tstamp\":1522765213,\"ses_data\":\"a:4:{s:26:\\\"formProtectionSessionToken\\\";s:64:\\\"bff9c34271b573c69478a97581b5bb4f28536f296822b0ed24ded7c6854c6c00\\\";s:27:\\\"core.template.flashMessages\\\";N;s:58:\\\"extbase.flashmessages.tx_solr_searchbackend_solrindexqueue\\\";N;s:31:\\\"TYPO3\\\\CMS\\\\Recordlist\\\\RecordList\\\";a:1:{s:12:\\\"search_field\\\";N;}}\"}"
...........
### Here is the trouble [3 ...... ] "GET" means use DB 3
1522765217.728359 [3 127.0.0.1:35458] "GET" "typo3_ses_BE_06cb28061e42f995b27765f3757a9512c20ece17_502af1f1d8670efc6d5a275feaabbcc3"

[YKWeyer]

@dkd-kaehm I experienced the same issue in a distinct context. It seems it comes from the TYPO3 core, and not from this specific extension.

The bug was reported, feel free to have a look at it :slightly_smiling_face:

[dkd-kaehm]

@YKWeyer Thanks.