[Dovecot] Dovecot+NFS: Copying messages causes failures (possible
tkay at uoregon.edu
Fri Jun 16 22:04:07 EEST 2006
Host: 64 bit Red Hat AS4 Linux (2.6.9-34.0.1)
Disks: NFS netapp
In the case below, the two connections were going through two separate servers sharing disks via an NFS NetApp.
Here is the sequence of operations:
1. Open a connection to a folder (say mail/Trash)
2. Open a connection to another folder (say Inbox)
3. Move messages from Inbox to Trash using this sequence on Inbox:
uid copy #,# "mail/Trash"
uid store #,# +flags (\Deleted)
4. Next, access open connection to Trash:
noop (completes OK, but does not see new messages)
...wait a few seconds...
noop (connection drops...no response)
Attempt to reconnect: mailbox locked. Will override in 270 seconds.
The dovecot logs contain the following for the exact time when the connection drops:
dovecot: IMAP(tkay): file mail-index-sync-update.c: line 686 (mail_index_sync_update_index): assertion failed: (view->hdr.messages_count == map->hdr.messages_count)
I cannot correlate this to the user/folder, but this message is usually nearby:
child 22915 (imap) killed with signal 6
University Computing Center
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