I started the process of upgrading from 20.0.4 to 20.0.14 through the web interface on a hosted environment. Stupid me, I clicked the option at the end for maintenance mode. After realizing my stupidity, I edited my config to ‘maintenance’ => false. When hitting the webpage, nextcloud then indicated it was going to install. It went through several steps before presenting the database error. Now, when I hit the server, it presents the error (I believe the same error) but now almost immediately:
Update to 20.0.14
Doctrine\DBAL\Exception\DriverException: An exception occurred while executing 'INSERT INTO `oc_appconfig` (`appid`,`configkey`,`configvalue`) SELECT ?,?,? FROM `oc_appconfig` WHERE `appid` = ? AND `configkey` = ? HAVING COUNT(*) = 0' with params ["core", "oc.integritycheck.checker", "[]", "core", "oc.integritycheck.checker"]: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away
...
Preparing update
Set log level to debug
Turned on maintenance mode
Repair step: Repair MySQL collation
Repair info: All tables already have the correct collation -> nothing to do
Repair step: Repair SQLite autoincrement
Repair step: Copy data from accounts table when migrating from ownCloud
Repair step: Drop account terms table when migrating from ownCloud
Updating database schema
Updated database
Checking for update of app "accessibility" in appstore
Checked for update of app "accessibility" in appstore
Checking for update of app "activity" in appstore
Checked for update of app "activity" in appstore
Checking for update of app "bruteforcesettings" in appstore
Checked for update of app "bruteforcesettings" in appstore
Checking for update of app "cloud_federation_api" in appstore
Checked for update of app "cloud_federation_api" in appstore
Checking for update of app "comments" in appstore
Checked for update of app "comments" in appstore
Checking for update of app "contacts" in appstore
Checked for update of app "contacts" in appstore
Checking for update of app "contactsinteraction" in appstore
Checked for update of app "contactsinteraction" in appstore
Checking for update of app "dashboard" in appstore
Checked for update of app "dashboard" in appstore
Checking for update of app "dav" in appstore
Checked for update of app "dav" in appstore
Checking for update of app "federatedfilesharing" in appstore
Checked for update of app "federatedfilesharing" in appstore
Checking for update of app "federation" in appstore
Checked for update of app "federation" in appstore
Checking for update of app "files" in appstore
Checked for update of app "files" in appstore
Checking for update of app "files_antivirus" in appstore
Checked for update of app "files_antivirus" in appstore
Checking for update of app "files_pdfviewer" in appstore
Checked for update of app "files_pdfviewer" in appstore
Checking for update of app "files_rightclick" in appstore
Checked for update of app "files_rightclick" in appstore
Checking for update of app "files_sharing" in appstore
Checked for update of app "files_sharing" in appstore
Checking for update of app "files_trashbin" in appstore
Checked for update of app "files_trashbin" in appstore
Checking for update of app "files_versions" in appstore
Checked for update of app "files_versions" in appstore
Checking for update of app "files_videoplayer" in appstore
Checked for update of app "files_videoplayer" in appstore
Checking for update of app "firstrunwizard" in appstore
Checked for update of app "firstrunwizard" in appstore
Checking for update of app "logreader" in appstore
Checked for update of app "logreader" in appstore
Checking for update of app "lookup_server_connector" in appstore
Checked for update of app "lookup_server_connector" in appstore
Checking for update of app "nextcloud_announcements" in appstore
Checked for update of app "nextcloud_announcements" in appstore
Checking for update of app "notifications" in appstore
Checked for update of app "notifications" in appstore
Checking for update of app "oauth2" in appstore
Checked for update of app "oauth2" in appstore
Checking for update of app "password_policy" in appstore
Checked for update of app "password_policy" in appstore
Checking for update of app "passwords" in appstore
Checked for update of app "passwords" in appstore
Checking for update of app "photos" in appstore
Checked for update of app "photos" in appstore
Checking for update of app "privacy" in appstore
Checked for update of app "privacy" in appstore
Checking for update of app "provisioning_api" in appstore
Checked for update of app "provisioning_api" in appstore
Checking for update of app "recommendations" in appstore
Checked for update of app "recommendations" in appstore
Checking for update of app "serverinfo" in appstore
Checked for update of app "serverinfo" in appstore
Checking for update of app "settings" in appstore
Checked for update of app "settings" in appstore
Checking for update of app "sharebymail" in appstore
Checked for update of app "sharebymail" in appstore
Checking for update of app "support" in appstore
Checked for update of app "support" in appstore
Checking for update of app "survey_client" in appstore
Checked for update of app "survey_client" in appstore
Checking for update of app "systemtags" in appstore
Checked for update of app "systemtags" in appstore
Checking for update of app "text" in appstore
Checked for update of app "text" in appstore
Checking for update of app "theming" in appstore
Checked for update of app "theming" in appstore
Checking for update of app "twofactor_backupcodes" in appstore
Checked for update of app "twofactor_backupcodes" in appstore
Checking for update of app "updatenotification" in appstore
Checked for update of app "updatenotification" in appstore
Checking for update of app "user_status" in appstore
Checked for update of app "user_status" in appstore
Checking for update of app "viewer" in appstore
Checked for update of app "viewer" in appstore
Checking for update of app "weather_status" in appstore
Checked for update of app "weather_status" in appstore
Checking for update of app "workflowengine" in appstore
Checked for update of app "workflowengine" in appstore
Repair step: Repair MySQL collation
Repair info: All tables already have the correct collation -> nothing to do
Repair step: Repair mime types
Repair step: Clean tags and favorites
Repair info: 0 tags of deleted users have been removed.
Repair info: 0 tags for delete files have been removed.
Repair info: 0 tag entries for deleted tags have been removed.
Repair info: 0 tags with no entries have been removed.
Repair step: Repair invalid shares
Repair step: Move .step file of updater to backup location
Repair step: Add move avatar background job
Repair info: Repair step already executed
Repair step: Add preview cleanup background jobs
Repair step: Fix potential broken mount points
Repair info: No mounts updated
Repair step: Repair language codes
Repair step: Install new core bundle components
Repair step: Add log rotate job
Repair step: Clear frontend caches
Repair info: Image cache cleared
Repair info: SCSS cache cleared
Repair info: JS cache cleared
Repair step: Clear every generated avatar on major updates
Repair step: Add preview background cleanup job
Repair step: Queue a one-time job to cleanup old backups of the updater
Repair step: Cleanup invalid photocache files for carddav
Repair step: Add background job to cleanup login flow v2 tokens
Repair step: Remove potentially over exposing share links
Repair info: No need to remove link shares.
Repair step: Clear access cache of projects
Repair step: Reset generated avatar flag
Repair step: Keep legacy encryption enabled
Repair step: Check encryption key format
Repair step: Remove old dashboard app config data
Repair step: Repair DAV shares
Repair info: Repaired DAV group shares
Repair step: Add background job to set the lookup server share state for users
Starting code integrity check
Doctrine\DBAL\Exception\DriverException: An exception occurred while executing 'INSERT INTO `oc_appconfig` (`appid`,`configkey`,`configvalue`) SELECT ?,?,? FROM `oc_appconfig` WHERE `appid` = ? AND `configkey` = ? HAVING COUNT(*) = 0' with params ["core", "oc.integritycheck.checker", "[]", "core", "oc.integritycheck.checker"]: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away
Can anyone point me in the right direction to troubleshoot this and get me back running?