Failed to map transaction log path - Stale file handle

[Gonzalo Palacios Goicolea]

Hi All,

We recently moved from RHEL6 to RHEL7 and updated dovecot from 
dovecot-2.2.10-1_14.el6.x86_64 to dovecot-2.2.36-8.el7.x86_64. We use 
NFS for storing the mail, and 5 servers running at the same time.
Before updating dovecot we stopped the service and deleted all 
dovecot.index* files
Now we're experiencing some problems. For example, when deleting an 
email it is note deleted and appears again duplicated. These are the logs:

Feb 28 08:50:42 server5 dovecot: imap(user at domain): Error: Index 
path/Maildir/dovecot.index: Lost log for seq=5 offset=228: Missing 
middle file seq=5 (between 5..4294967295, we have seqs 4): Log is locked 
- newer log can't exist (initial_mapped=1, reason=Index mapped)
Feb 28 08:50:42 server5 dovecot: imap(user at domain): Warning: fscking 
index file path/Maildir/dovecot.index
Feb 28 08:50:42 server5 dovecot: imap(user at domain): Error: Failed to map 
transaction log path/Maildir/dovecot.index.log at sync_offset=10328 
after locking: pread() failed: Stale file handle
Feb 28 08:50:42 server5 dovecot: imap(user at domain): Error: Index 
path/Maildir/dovecot.index: Lost log for seq=5 offset=228: Missing 
middle file seq=5 (between 5..4294967295, we have seqs 4): Requested 
newer log than exists - still after NFS flush: Log inode is unchanged 
(initial_mapped=1, reason=Index mapped)
Feb 28 08:50:45 server5 dovecot: imap(user at domain): Error: Failed to map 
transaction log path/Maildir/dovecot.index.log at sync_offset=10328 
after locking: pread() failed: Stale file handle
Feb 28 08:50:45 server5 dovecot: imap(user at domain): Error: Failed to map 
view for path/Maildir/dovecot.index: Missing middle file seq=5 (between 
5..5, we have seqs 4): Requested newer log than exists - still after NFS 
flush: Log inode is unchanged

Usually restarting the email client solves the problem for a while. 
We've tried deleting the indexes but it happens again some time later.

This is dovecot config:

dovecot -n
# 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.24 (124e06aa)
# OS: Linux 3.10.0-1160.6.1.el7.x86_64 x86_64 Red Hat Enterprise Linux 
Server release 7.9 (Maipo)
# Hostname: server
auth_cache_negative_ttl = 5 mins
auth_cache_size = 500 M
auth_cache_ttl = 5 mins
auth_failure_delay = 5 secs
default_vsz_limit = 1 G
disable_plaintext_auth = no
hostname = server
imap_logout_format = in(bytes read)=%i out(bytes sent)=%o
listen = *
lock_method = dotlock
mail_fsync = always
mail_location = maildir:%h/Maildir
mail_nfs_index = yes
mail_nfs_storage = yes
mail_plugins = " quota mail_log notify"
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope 
encoded-character vacation subaddress comparator-i;ascii-numeric 
relational regex imap4flags copy include variables body enotify 
environment mailbox date index ihave duplicate mime foreverypart 
extracttext imapflags notify
mbox_write_locks = fcntl
mmap_disable = yes
namespace {
   location = maildir:%h/Maildir/_backup
   prefix = _backup.
   separator = .
   type = private
}
namespace inbox {
   inbox = yes
   location =
   mailbox Drafts {
     special_use = \Drafts
   }
   mailbox Junk {
     special_use = \Junk
   }
   mailbox Sent {
     special_use = \Sent
   }
   mailbox "Sent Messages" {
     special_use = \Sent
   }
   mailbox Trash {
     special_use = \Trash
   }
   prefix =
}
passdb {
   args = /etc/dovecot/dovecot-ldap.conf.ext
   driver = ldap
}
plugin {
   mail_log_events = delete undelete expunge mailbox_delete 
mailbox_rename mailbox_create save
   mail_log_fields = uid box msgid from subject
   quota = maildir:_backup:ns=
   quota_exceeded_message = El espacio asignado para el almacenamiento 
del correo del destinatario ha superado su capacidad total. Por ello, el 
correo que usted intenta enviar no se puede entregar al destinatario.
   quota_warning = storage=70%% quota-warning 70 %u
   quota_warning1 = storage=90%% quota-warning 90 %u
   quota_warning2 = storage=95%% quota-warning 95 %u
   quota_warning3 = storage=99%% quota-warning 99 %u
   sieve = ~/.dovecot.sieve
   sieve_dir = ~/Maildir/sieve
   sieve_extensions = +notify +imapflags
}
postmaster_address = postmaster at domain
protocols = imap pop3 sieve
service auth {
   unix_listener auth-userdb {
     group = vmail
     mode = 0666
     user = vmail
   }
}
service imap-login {
   inet_listener imap {
     port = 143
   }
   process_min_avail = 20
}
service imap {
   process_limit = 2048
}
service managesieve-login {
   inet_listener sieve {
     port = 4190
   }
   inet_listener sieve_deprecated {
     port = 2000
   }
   process_min_avail = 20
}
service pop3-login {
   inet_listener pop3 {
     port = 110
   }
   process_min_avail = 20
}
service pop3 {
   process_limit = 2048
}
service quota-warning {
   executable = script 
/etc/dovecot/scripts_notification_quota/quota-warning.sh
   unix_listener quota-warning {
     user = vmail
   }
   user = vmail
}
ssl = no
ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
ssl_key =  # hidden, use -P to show it
submission_host = smtp.domain:25
syslog_facility = local1
userdb {
   args = /etc/dovecot/dovecot-ldap.conf.ext
   driver = ldap
}
protocol lda {
   mail_plugins = " quota mail_log notify sieve"
}
protocol imap {
   mail_max_userip_connections = 10000
   mail_plugins = " quota mail_log notify imap_quota"
}
protocol pop3 {
   mail_max_userip_connections = 10
}

Can you please help me?
Thanks in advance and best regards

-- 

*Gonzalo Palacios Goicolea*
U.T de Infraestructura de Equipos Centrales
/Tecnologías de la Información/
Universidad Autónoma de Madrid • Campus de Cantoblanco

<3D"http://www.uam.es/">

Antes de imprimir este correo piense si es necesario.Cuidemos el 
medioambiente.

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