I upgraded my dovecot imap server so that I could use the
"disable_mmap=yes" option because I was seeing errors trying to write to
.index and some other mmap'ed files in a glusterfs mounted mailstore.
Those errors are not showing up anymore, but I am now seeing some other
(harder to troubleshoot) errors:
the mail client will get an email and click on it, and it will show no
content in the message. I look at the imap server log and see the
following error:
dovecot: Nov 18 20:16:56 Error: IMAP(jana@xxxxxxxxx
<mailto:jana@xxxxxxxxx>): Maildir: Symlink destination doesn't exist:
/opt/GFS/postfix/vmail/jana@bofus
<mailto:jana@bofus>.org/cur/1195435820.V13Iaad099.asknmapr01:2,S
So I do an "ls -l" on that file:
# ls -l /opt/GFS/postfix/vmail/jana@xxxxxxxxx
<mailto:jana@xxxxxxxxx>/cur/1195435820.V13Iaad099.asknmapr01:2,S
ls: /opt/GFS/postfix/vmail/jana@xxxxxxxxx
<mailto:jana@xxxxxxxxx>/cur/1195435820.V13Iaad099.asknmapr01:2,S: No
such file or directory
-rw------- 1 vmail vmail 9247 Nov 18 19:30
/opt/GFS/postfix/vmail/jana@xxxxxxxxx
<mailto:jana@xxxxxxxxx>/cur/1195435820.V13Iaad099.asknmapr01:2,S
first it says "No such file or directory", then it lists it out.
If I try to touch the file, it fails with no such file. If I try to
remove the file it fails in the same manner.
Here is my client mountpoint:
glusterfs on /opt/GFS/postfix type fuse
(rw,nosuid,nodev,allow_other,default_permissions,max_read=1048576)
So now I login to the glusterfs server:
I can do an successful "ls -l" on that same file above:
# ls -l /glusterfs/knworksmail/vmail/jana@xxxxxxxxx
<mailto:jana@xxxxxxxxx>/cur/1195435820.V13Iaad099.asknmapr01:2,S
-rw------- 1 15002 15002 9247 Nov 18 19:30
/glusterfs/knworksmail/vmail/jana@xxxxxxxxx
<mailto:jana@xxxxxxxxx>/cur/1195435820.V13Iaad099.asknmapr01:2,S
Here on the server I can move the file around:
mv /glusterfs/knworksmail/vmail/jana@xxxxxxxxx
<mailto:jana@xxxxxxxxx>/cur/1195435820.V13Iaad099.asknmapr01:2,S /var/tmp
- works -
Now if I move the file back into place, the mail client can then see it
like it should have been able to in the first place:
mv /var/tmp/1195435820.V13Iaad099.asknmapr01:2,S
/glusterfs/knworksmail/vmail/jana@xxxxxxxxx <mailto:jana@xxxxxxxxx>/cur/
- client now sees it and the content -
This happens seemingly randomly to mail. this did not happen before the
upgrade, and does not occur if I move the mailstore to local ext3 disk.
Any Ideas? do I need to provide more information?
Thanks!
-Jeff Humes
