Kopano-server fails: unrecognized attachement_storage="database"



  • Updating tot 8.4.90 last weekend broke Kopano server. Happend with 8.4.90.1294 but still remains with today’s version 1296…

    Error in log:
    [error] K-1542: Unrecognized attachment_storage=“database”
    [crit] Could not initialize attachment store: no access
    [error] Unable to initialize kopano session manager

    Any idea? Help is very much appreciated.


  • Kopano

    Hi @wslagendijk ,

    yes indeed using the database backend for attachment storage can currently not be set. I have created https://jira.kopano.io/browse/KC-945 to investigate this further.

    On a related topic: why are you storing your attachments still in the database? The recommended (and default) way would be to store those on disk.



  • Because I am using Kopano for private use only on a VPS which I migrate once in a while. And storing the attachments in the database is by far the easiest to migrate :-)



  • Boy, it gets worse :(

    So I migrated the attachments to files with the perl script provided in /usr/share/doc/kopano. Script worked fine.
    Changed the configuration afterward and restarted kopano-server. Now log shows this error:
    [error] Attachments are stored with option ‘database’, but ‘files’ is selected.

    @fbartels Now what do I do?
    Really made a mess of it…


  • Kopano

    @wslagendijk that does not sound like you followed the instructions on switching the attachment backend until the end.



  • right, missed the part of start once with “–ignore-attachment-storage-conflict”. tnx


Log in to reply