https://bugs.kde.org/show_bug.cgi?id=404538
Bug ID: 404538 Summary: akonadi fails with "multiple merge candidates" after failed IMAP sync Product: Akonadi Version: unspecified Platform: Neon Packages OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: server Assignee: kdepim-bugs@kde.org Reporter: jens-bugs.kde....@spamfreemail.de Target Milestone: --- Using KDE Neon with all updates applied, based on Ubuntu 18.04. For the last few weeks, Kontact has not been updating its mails any more and I only see "retrieving folder contents ..." in the messages window. I tracked this down to an Akonadi issue where - it seems - an IMAP remotely stored mail was deleted twice. Something in the mail database has gotten out of sync, and Akonadi is not clever enough to fix it. I'm going back to Thunderbird for now. Despite KMail definitively being the better mail app. Sorry, gals 'n' guys. I went from Ubuntu to KDE Neon because I found KDE is by far the better desktop experience now that Unity is going (I liked Unity). I tried Kontact/KDE and was surprised what features it had compared to my Thunderbird/Lightning/SOGO setup with Caldav and Carddav. It worked great at first, maybe except for the weak HTML support in the mail editor (especially when replying). Then KMail started stalling when fetching mail, mostly after resuming from sleep mode, or when cleaning up inboxes with a lot of moving and deleting email. Some research pointed me to the Akonadi framework running in the background, and a ~2GB MySQL database in .local/share/akonadi acting as "cache" for all my mails. And this "cache" kept breaking on me. "akonadictl restart" on the console spew thousands of "multiple merge candidates" and "lock time exceeded" errors, which appeared again and again regardless how often I deleted my whole KDE setup and configured everything from scratch. Thunderbird is clunkier, not as nice, not as fast. But it *works*. I have never lost email. It can find the right email quickly with the global search feature and "drill down" options. Whatever local database it has, it doesn't break on me and doesn't create duplicate or missing emails. It uses about a third of the memory that Kontact + Akonadi + the mandatory MySQL server uses, and does not create *yet* another cache copy of my emails. Please close this bug only after Akonadi has been made either significantly more robust or replaced by something more robust. I will stay with KDE, and I will keep my Akonadi configuration, so if there are follow-up questions, I'm happy to answer and do some research to help fix this. -- You are receiving this mail because: You are the assignee for the bug.