------------------------------ > Date: Sun, 17 Apr 2016 11:36:56 +0100 > From: Patrick O'Callaghan <[email protected]> > To: [email protected] > Subject: Re: [Evolution] local mail box garbage collection > Message-ID: <[email protected]> > Content-Type: text/plain; charset="UTF-8" > > On Sun, 2016-04-17 at 11:55 +0200, Ernest Sales wrote: > > Running Evolution 3.12.9 on debian jessie+bpo. > > > > For a long time now I was wondering if Evoltion local mail box got a > > proper garbage collection. I suppose this is not a concern for users > > taking advantage of IMAP servers, but I happen to keep a local record > > of most important mails, and not a small one in spite of removing > > attachments etc. > > > > Yesterday I had a dissapointing confirmattion of my fears. While > > troubleshooting a friend's email account, several hundreds of mails > > landed on my inbox, many of them with big attachments. All these were > > duly trashed, and the trash was expunged. Nevertheless, the size of > > my > > next Evolution backup increased by 90 MB. > > > > Does this happen only to me --and if so, why? > > > > Is this a known issue, or should I report a bug? > > > > Does anyone know a more or less artisanal fix? > > AFAIK there is no "garbage collection" of mail, just of the SQL index > files. > > How is the local mail stored? It could be the (old) mbox style, where > every folder is a single file, or the newer Maildir format where each
It's in the maildir format. > folder has a directory and each message is a file. In the mbox case > deleted messages are not removed until after an expunge (which I see > you did), at which time the entire file is read to copy non-deleted > messages to a new file, which is then renamed. > > I'm just speculating, but all this means a lot of file activity. If > your backup procedure is incremental this could mean that the first > backup after the cleanup operation creates a lot of new data. Sorry for not making it clear: I'm using the Evolution builtin backup. It's not incremental; AFAICS it takes the ~/.local/share/evolution folder plus the config stuff and compresses all that in a tar.gz file. Very convenient, as this is the format that understands the builtin restore. > > poc > > > ------------------------------
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