Stripping of attachments using Horde 4/IMP 5.

[Simon Matter]

>> ----- Message from awilliam at whitemice.org ---------
>>      Date: Sun, 30 Dec 2012 18:56:36 -0500
>>      From: Adam Tauno Williams <awilliam at whitemice.org>
>> Reply-To: awilliam at whitemice.org
>>   Subject: Re: Stripping of attachments using Horde 4/IMP 5.
>>        To: info-cyrus at lists.andrew.cmu.edu
>>
>>
>>> On Sun, 2012-12-30 at 12:23 +0530, anant at isac.gov.in wrote:
>>>> Dear experts,
>>>> I had extensive discussion on this issue in Horde/IMP mailing list.
>>>> Later I reported the problem in RedHat Bugzilla.  The details of the
>>>> problem are also part of bugzilla.
>>>> https://bugzilla.redhat.com/show_bug.cgi?id=885620
>>>> Though patch for cyrus-imapd was given to me for testing, I was
>>>> suppose to reproduce the problem in another server.  I am unable to
>>>> reproduce the problem.  Now, I have a feeling that, the problem may be
>>>> due to /var/lib/imap residing in NetApp storage (though not NFS).
>>>> I have a feeling, the problem may solve, if I make /var/lib/imap part
>>>> of OS disk.  Your opinion please...
>>>
>>> Are you using Berkley databases?  If it does seg-fault what does the
>>> backtrace look like? [I don't see a backtrace in the bug report, just a
>>> core file; but the core isn't really useful unless one has the same
>>> version of the software].
>>>
>>> --
>>> Adam Tauno Williams  GPG D95ED383
>>> Systems Administrator, Python Developer, LPI / NCLA
>>>
>>> ----
>>> Cyrus Home Page: http://www.cyrusimap.org/
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>>
>> The databases used are:
>>
>> -rw------- 1 cyrus mail 144 Dec  9 09:29 ./annotations.db
>> ./annotations.db: Cyrus skiplist DB
>>
>> -rw------- 1 cyrus mail 144 Dec 30 11:30 ./db.backup1/annotations.db
>> ./db.backup1/annotations.db: Cyrus skiplist DB
>>
>> -rw------- 1 cyrus mail 1882668 Dec 30 11:30 ./db.backup1/mailboxes.db
>> ./db.backup1/mailboxes.db: Cyrus skiplist DB
>>
>> -rw------- 1 cyrus mail 144 Dec 30 11:00 ./db.backup2/annotations.db
>> ./db.backup2/annotations.db: Cyrus skiplist DB
>>
>> -rw------- 1 cyrus mail 1882668 Dec 30 11:00 ./db.backup2/mailboxes.db
>> ./db.backup2/mailboxes.db: Cyrus skiplist DB
>>
>> -rw------- 1 cyrus mail 18038784 Dec 30 11:30 ./deliver.db
>> ./deliver.db: Berkeley DB (Btree, version 9, native byte-order)
>>
>> -rw------- 1 cyrus mail 1882668 Dec 29 14:33 ./mailboxes.db
>> ./mailboxes.db: Cyrus skiplist DB
>>
>>
>> I don't have backtrace?  I am using RHEL rpms.
>
> Unfortunately we can also not see what has been changed in the patched
> RPMs you got from RH.
>
>>
>> But, is it OK to use NetApp Storage for /var/lib/imap file system?
>
> NetApp often sounds like NFS but you told us you are not using NFS but FC
> attached disks? If so I don't know why it shouldn't work exactly as local
> disks would.
>
> But when I hear Horde/IMP I remember a problem that some people hit after
> upgrading Horde/IMP. I don't remember what it was but you should find it
> in the archives. IIRC it has been fixed in the latest version of
> cyrus-imapd.

Sorry forgot to mention, if you make any tests on a test system make sure
it's the same arch as the production system. I mean, don't test on a i386
box if production is running x86_64 or so.

Regards,
Simon