PHP unserialize(): Error at offset

[louim-lbs]

Hello,

Very often, but not regularly, I have this error in my logs:

[PHP] Erreur: unserialize(): Error at offset 0 of 595 bytes at /config/www/nextcloud/apps/suspicious_login/vendor/rubix/ml/src/Persisters/Serializers/Native.php#49

at ********

I don't know what event triggers this error...

I use NC 26.0.2 and SL 4.4.0, with php 8.1.17

[ChristophWurst]

Please find the latest entry for that error in your data/nextcloud.log and post it. Redact any sensitive info.

[louim-lbs]

I have this:
Maybe it's linked with Mail app?

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object.","Code":0,"Trace":[{"file":"/config/www/nextcloud/apps/mail/lib/Service/Classification/PersistenceService.php","line":165,"function":"load","class":"OCA\\Mail\\Service\\Classification\\PersistenceService","type":"->"},{"file":"/config/www/nextcloud/apps/mail/lib/Service/Classification/ImportanceClassifier.php","line":306,"function":"loadLatest","class":"OCA\\Mail\\Service\\Classification\\PersistenceService","type":"->"},{"file":"/config/www/nextcloud/apps/mail/lib/Listener/NewMessageClassificationListener.php","line":121,"function":"classifyImportance","class":"OCA\\Mail\\Service\\Classification\\ImportanceClassifier","type":"->"},{"file":"/config/www/nextcloud/lib/private/EventDispatcher/ServiceEventListener.php","line":86,"function":"handle","class":"OCA\\Mail\\Listener\\NewMessageClassificationListener","type":"->"},{"file":"/config/www/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php","line":251,"function":"__invoke","class":"OC\\EventDispatcher\\ServiceEventListener","type":"->"},{"file":"/config/www/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php","line":73,"function":"callListeners","class":"Symfony\\Component\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/config/www/nextcloud/lib/private/EventDispatcher/EventDispatcher.php","line":87,"function":"dispatch","class":"Symfony\\Component\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/config/www/nextcloud/apps/mail/lib/Service/Sync/ImapToDbSynchronizer.php","line":404,"function":"dispatch","class":"OC\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/config/www/nextcloud/apps/mail/lib/Service/Sync/ImapToDbSynchronizer.php","line":236,"function":"runPartialSync","class":"OCA\\Mail\\Service\\Sync\\ImapToDbSynchronizer","type":"->"},{"file":"/config/www/nextcloud/apps/mail/lib/Service/Sync/ImapToDbSynchronizer.php","line":137,"function":"sync","class":"OCA\\Mail\\Service\\Sync\\ImapToDbSynchronizer","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/config/www/nextcloud/apps/mail/lib/BackgroundJob/SyncJob.php","line":110,"function":"syncAccount","class":"OCA\\Mail\\Service\\Sync\\ImapToDbSynchronizer","type":"->","args":["*** sensitive parameters replaced 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sensitive parameters replaced ***"]},{"file":"/config/www/nextcloud/apps/mail/lib/BackgroundJob/SyncJob.php","line":110,"function":"syncAccount","class":"OCA\\Mail\\Service\\Sync\\ImapToDbSynchronizer","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/config/www/nextcloud/lib/public/BackgroundJob/Job.php","line":78,"function":"run","class":"OCA\\Mail\\BackgroundJob\\SyncJob","type":"->"},{"file":"/config/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/config/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/config/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/config/www/nextcloud/apps/suspicious_login/vendor/rubix/ml/src/Persisters/Serializers/Native.php","Line":52},"message":"Failed to load importance classifier: Could not deserialize persisted classifier 2: Unserialized data must be an object.","exception":{},"CustomMessage":"Failed to load importance classifier: Could not deserialize persisted classifier 2: Unserialized data must be an object."}}
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Thanks!

[joshtrichards]

You still seeing this error these days, @louim-lbs?

Might be related (not sure), but looks we can switch suspicious_login back to stock rubix/ml (#710). Looks like mail already switched back (nextcloud/mail#7388) and currently prefers a different version (v2.4.0 via nextcloud/mail#8878) than suspicious_login uses these days.

EDIT: I partially take back the versioning comparison preference since I apparently don't understand how to compare across league/flysystem and rubix/ml. (This is what happens when I get into Composer dependencies 😂). But the gist of the above comment still stands (I think).

EDIT (again): Hmm. Maybe a can of worms now that I see #780.

[louim-lbs]

Not for a while, maybe an update solved the problem.

I think we can close this issue, I'll reopen it if something pops up again. What do you think?

[joshtrichards]

👍