On Friday 01 January 2016 11:47:16 Mick wrote: > On Friday 01 Jan 2016 10:41:40 Peter Humphrey wrote: > > On Friday 01 January 2016 10:26:05 Mick wrote: > > > ... my kmail2 still seems to be functioning properly and without any > > > major problems so far. :-) > > > > What, not even duplicates? I'm still getting a dozen a day. > > Hi Peter, > > I think your problem with duplicates is specific to the Kmail2's POP3 > implementation.
That does seem likely, yes. > I noticed this too in the early days of Kmail2, on an old > PC which was having great trouble running akonadi. POP3 messages were > being duplicated back then and every time I deleted any duplicates they > were magically being recreated afresh. I never nailed it down to a > particular cause, because the old PC could not run Kmail2 effectively for > daily usage - it was being pegged at 100% of CPU most of the time, > corrupting its akonadi driven mysql database as it was going along. I > tried half a dozen times to perform get it running successfully, but > eventually gave up in frustration of the ever propagating duplicate > messages. IMAP4 was also not very reliable back then, messages in the > Sent folder were not shown at all. However, this was a problem with the > IMAP4 server I was using at the time and needed some change in the > default IMAP4 configuration of Kmail2 to fix it. The current version of > my IMAP4 servers seem to work fine with Kmail2. My ISP doesn't offer IMAP, and in any case I'd rather have my e-mails under my own control. > I can confirm at present I am not having any duplicate messages showing up > with IMAP4 on 3 different PCs, with multiple email accounts, either with > embedded mysql or on my most recent installation with a stand alone > postgresql. I can also confirm that on my laptop even gkrellms is using > more CPU (0.7%) than Kmail2 (0.3%), just as I am writing this email. :-) No great load here either. I'd be worried if there were, though. > I recall from a previous thread that you tried different things to resolve > the duplicate messages problem, including creating a new Kmail account > and starting afresh. I don't know how much basic troubleshooting you may > have done. On the client side, did you try running a new stand alone > database (not embedded in akonadi) in case this is a database problem? > > Also, did you try a different POP3 mail account, from a different provider > to check this is not server specific? > > Otherwise, it may be some error incurred during the 'message-number' > exchange between your mailserver and the Kmail2 POP3 client, or how these > message- numbers are stored/refreshed by akonadi. You could try > troubleshooting POP3 packet exchanges with the server using wireshark to > see what flies on the wire, then doing some open heart surgery on the > mysql tables to find out what is the matter with the 'message-number' > stored/used by akonadi. The aconadiconsole may be useful for this > purpose, or good ol' mysql commands on a terminal. Thanks for your thoughts Mick. I think most of my problems have persisted through many iterations from the early days of KMail-2. At any rate, I've just deleted the whole KMail structure once more and reimported from archive and so far I've no duplicates. I used to get duplicates in certain folders even from the import process. I followed the instructions here, about two-thirds down the page: https://userbase.kde.org/KMail/FAQs_Hints_and_Tips#Get_more_screen_space_in_KMail Yes, really! I'd better submit a bug report to get that text moved to somewhere more suitable. -- Rgds Peter
