David C. Reeve
2005-Jan-12 16:11 UTC
[Dovecot] link() failed / maildir_copy_with_hardlinks=no / maildir-save.c.patch
Hi, I have recently been having a small problem with Dovecot (dovecot-0.99.13) not honouring the "maildir_copy_with_hardlinks" config option, specifically when it is set to "no". This results in errors to the syslog looking like: Jan 12 09:59:21 imap imap(dave): link(/afs/.../tmp/1105541958.P1137Q0M41428.imap, /afs/.../new/1105541958.P1137Q0M41428.imap:2,S) failed in maildir_copy: Invalid cross-device link The supplied patch will, when maildir_copy_with_hardlinks=no, rename files inside maildir's instead of hard linking them, hence honouring the configuration option. A word of caution! This all relies on the filenames in maildir being unique (which they should be, and this shouldn't be a problem, but..). It is possible (although unlikely) that renaming the file could destroy a file in the target directory; no checking is done to assure this is not the case! (If you are paranoid you can always write another patch). Yes I am using AFS (openafs specifically) to hold my maildir's, which does not support hard links. However AFS assures that rename operations are atomic so we can use that instead (this may be the case for other filling systems that do not allow hard links). Hope that helps some one else ;) Dave -- David C. Reeve <David.Reeve at pnsol.com> Predictable Network Solutions -------------- next part -------------- A non-text attachment was scrubbed... Name: maildir-save.c.patch Type: text/x-patch Size: 1476 bytes Desc: Patch to maildir-save.c URL: <http://dovecot.org/pipermail/dovecot/attachments/20050112/0fba939e/attachment-0001.bin>
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