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<p>Hi,<br>
<br>
I'm running 3 Dovecot director and 6 Dovecot backend on CentOS 6
and Dovecot 2.3.10, with Maildir shared on NFSv3 (on NetApp).<br>
<br>
Since CentOS 6 will be EOL on November I started to upgrade to
CentOS 7 the first Dovecot backend.<br>
<br>
But after Director start to direct users on new CentOS 7 server
some errors, for any users, come up, an example:<br>
<br>
Aug 21 14:56:41 Error: imap(<a class="moz-txt-link-abbreviated" href="mailto:alessio@cecchi.it">alessio@cecchi.it</a>)
session=<11sBlmKtj1qelGW/>: Mailbox INBOX: Broken or
unexpectedly changed file
/home/vmail/domains/cecchi.it/alessio/Maildir/dovecot-uidlist line
18664: Invalid data: - re-reading from beginning<br>
Aug 21 14:56:41 Error: imap(<a class="moz-txt-link-abbreviated" href="mailto:alessio@cecchi.it">alessio@cecchi.it</a>)
session=<11sBlmKtj1qelGW/>: Mailbox INBOX: Broken file
/home/vmail/domains/cecchi.it/alessio/Maildir/dovecot-uidlist line
18664: Invalid data:<br>
<br>
Consequently to the error the user see the synchronization of his
mailbox again.<br>
<br>
The Dovecot version and configuration is the same that in CentOS
6, also the mount parameters are the same, so I suspect that could
be some difference in the NFS client implementation on CentOS 7.<br>
<br>
This the entry on fstab:<br>
<br>
192.168.1.2:/vmail0 /mnt/vmail0 nfs
rw,nfsvers=3,noatime,nodiratime,_netdev,nordirplus 0 0<br>
# Bind for vmail0<br>
/mnt/vmail0/domains /home/vmail/domains none
x-systemd.requires=/mnt/vmail0,x-systemd.automount,bind 0 0<br>
<br>
In the archive of this list I found a similar issue but without a
solutions:<br>
<br>
<a class="moz-txt-link-freetext" href="https://dovecot.org/pipermail/dovecot/2018-October/113207.html">https://dovecot.org/pipermail/dovecot/2018-October/113207.html</a><br>
<br>
Do you have any suggestions?<br>
Thanks<br>
</p>
<pre class="moz-signature" cols="72">--
Alessio Cecchi
Postmaster @ <a class="moz-txt-link-freetext" href="http://www.qboxmail.it">http://www.qboxmail.it</a>
<a class="moz-txt-link-freetext" href="https://www.linkedin.com/in/alessice">https://www.linkedin.com/in/alessice</a></pre>
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