Friends,I'm preparing for a couple of belated 2.5.X to 3.0.X upgrades, and have a question about how necessary it is to run "reconstruct -V max" on the mailstore. Both systems are currently running 2.5.10, and are already at index version 13. However, when performing "reconstruct -V max" on one, on a new 3.0.7 (with patches) system, I see this:
root@newmail:~# /usr/lib/cyrus/bin/reconstruct -V max user/onlight user.onlight uid 1 rediscovered - appending user.onlight uid 2 rediscovered - appending user.onlight uid 3 rediscovered - appending user.onlight uid 4 rediscovered - appending user.onlight uid 5 rediscovered - appending user/onlight Repacked user/onlight to version 13The last line can be ignored, as it's really a noop. The "rediscovered - appending" stuff is what catches my eye. However, once the reconstruct is complete, here's what the mailbox looks like:
root@newmail:/var/spool/cyrus/mail/I/user/onlight#
/usr/lib/cyrus/bin/cyrdump user/onlight
Content-Type: multipart/related; boundary="dump-27466-1533049817-351841533"
--dump-27466-1533049817-351841533
Content-Type: text/xml
IMAP-Dump-Version: 0
<imapdump uniqueid="710a47ca47ebc676">
<mailbox-url>imap://newmail.example.com/user.onlight</mailbox-url>
<incremental-uid>0</incremental-uid>
<nextuid>15</nextuid>
*<uidlist>6 7 9 10 11 12 13 14 </uidlist>*
<flags>
...
Note that the <uidlist> doesn't list those low number UIDs which were
listed in the reconstruct sequence. In other words, I think this all is
harmless, but I'm not sure how much overhead it brings to the whole
process.
One of the servers has a total of 70GB of mail, so a complete reconstruct run only takes a short while. The other, however, has over 8TB scattered over >30 partitions. If I could avoid running reconstruct across that whole wad, it'd be great.
Thoughts please? -nic -- Nic Bernstein n...@onlight.com Onlight, Inc. www.onlight.com 6525 W Bluemound Road, Suite 24 v. 414.272.4477 Milwaukee, Wisconsin 53213-4073
<<attachment: nic.vcf>>
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