[Dovecot] Regenerating mdbox/sis

[Daniel L. Miller]

On 2/16/2011 8:21 AM, Timo Sirainen wrote:
> On 16.2.2011, at 2.35,<dmiller at amfes.com>  <dmiller at amfes.com>  wrote:
>
>> It's apparent I have some level of corruption in my mailboxes -
>> something to do with the combination of mdbox, sis, and zlib. I should
>> note that I know I have a mix of compressed and raw messages - if that
>> makes any difference in identifying the problems.
> The mixing shouldn't make any difference. Would be nice to know if the problem is from mdbox+sis, mdbox+zlib or if it really needs a combination of all 3.
>
> I wonder if http://hg.dovecot.org/dovecot-2.0/rev/b71834419ea3 might help here.
>
>> I think I need to
>> somehow regenerate the mailboxes with issues. Is there a suggestion for
>> how to accomplish this? Should I perhaps use dsync to shift to a
>> temporary mail location and then rename it back?
> That should do it.
>

Tried dsync to convert to maildir - got this:
  dsync -u amiller at amfes.com -o mail_plugins="zlib" backup 
maildir:/var/mail/backup/amiller
dsync(amiller at amfes.com): Error: Attachment file 
/var/mail/attachments/bc/fd/bcfde106b8d0860fb819c613ffc83d02c1dba0e3-5539b90f82a1c94ce15100003bc41c5f 
smaller than expected (530943 < 530944)
dsync(amiller at amfes.com): Error: Attachment file 
/var/mail/attachments/bc/fd/bcfde106b8d0860fb819c613ffc83d02c1dba0e3-5539b90f82a1c94ce15100003bc41c5f 
smaller than expected (530943 < 530944)
dsync(amiller at amfes.com): Error: Attachment file 
/var/mail/attachments/bc/fd/bcfde106b8d0860fb819c613ffc83d02c1dba0e3-5539b90f82a1c94ce15100003bc41c5f 
smaller than expected (530943 < 530944)
dsync(amiller at amfes.com): Error: Attachment file 
/var/mail/attachments/bc/fd/bcfde106b8d0860fb819c613ffc83d02c1dba0e3-5539b90f82a1c94ce15100003bc41c5f 
smaller than expected (530943 < 530944)
dsync(amiller at amfes.com): Error: Attachment file 
/var/mail/attachments/bc/fd/bcfde106b8d0860fb819c613ffc83d02c1dba0e3-5539b90f82a1c94ce15100003bc41c5f 
smaller than expected (530943 < 530944)
dsync(amiller at amfes.com): Error: Attachment file 
/var/mail/attachments/bc/fd/bcfde106b8d0860fb819c613ffc83d02c1dba0e3-5539b90f82a1c94ce15100003bc41c5f 
smaller than expected (530943 < 530944)
dsync(amiller at amfes.com): Error: Attachment file 
/var/mail/attachments/bc/fd/bcfde106b8d0860fb819c613ffc83d02c1dba0e3-5539b90f82a1c94ce15100003bc41c5f 
smaller than expected (530943 < 530944)
dsync(amiller at amfes.com): Error: read(msg input) failed: Input/output error
dsync(amiller at amfes.com): Error: Attachment file 
/var/mail/attachments/bc/fd/bcfde106b8d0860fb819c613ffc83d02c1dba0e3-5539b90f82a1c94ce15100003bc41c5f 
smaller than expected (530943 < 530944)
dsync(amiller at amfes.com): Panic: file mail-index-transaction-update.c: 
line 19 (mail_index_transaction_lookup): assertion failed: (seq >= 
t->first_new_seq && seq <= t->last_new_seq)
dsync(amiller at amfes.com): Error: Raw backtrace: 
/usr/local/lib/dovecot/libdovecot.so.0(+0x3ca8a) [0x7fde07aaea8a] -> 
/usr/local/lib/dovecot/libdovecot.so.0(default_fatal_handler+0x32) 
[0x7fde07aaeb72] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x16dea) 
[0x7fde07a88dea] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(+0x90397) 
[0x7fde07d80397] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(+0x92f75) 
[0x7fde07d82f75] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(mail_cache_decision_state_update+0x37) 
[0x7fde07d72317] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(mail_cache_lookup_headers+0x81) 
[0x7fde07d74041] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(+0x46679) 
[0x7fde07d36679] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(index_mail_get_first_header+0x4e) 
[0x7fde07d36bfe] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(+0x43381) 
[0x7fde07d33381] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(+0x43489) 
[0x7fde07d33489] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(index_mail_close+0x85) 
[0x7fde07d33555] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(index_mail_free+0x17) 
[0x7fde07d32b87] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(mail_free+0xd) 
[0x7fde07d19f0d] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(maildir_transaction_save_commit_pre+0x3c1) 
[0x7fde07d47a01] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(+0x52c12) 
[0x7fde07d42c12] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(mail_index_transaction_commit_full+0x96) 
[0x7fde07d7dc76] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(index_transaction_commit+0x8a) 
[0x7fde07d4287a] -> /usr/local/lib/dovecot/lib20_zlib_plugin.so(+0x49bc) 
[0x7fde06ec29bc] -> 
/usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit_get_changes+0x3d) 
[0x7fde07d2000d] -> dsync() [0x40fa68] -> dsync() [0x411631] -> 
dsync(main+0x66a) [0x406c7a] -> /lib/libc.so.6(__libc_start_main+0xfe) 
[0x7fde07301d8e] -> dsync() [0x406439]
Aborted

-- 
Daniel