[Dovecot] doveadm commands returning 139 at director servers

[Angel L. Mateo]

Hello,

	I have configured director in front of dovecot imap/pop/lmtp servers. 
When I need to manipulate a user mailbox, I use doveadm commands at 
director server's, with -S option. But some commands return exit code 
139 when command returns more than 40 entries (I think).

	For example, the command:

sudo doveadm fetch -u amateo  hdr mailbox Trash HEADER Subject "nyctalus11/"

	executed at the backend server returns 952 mails, but executed at 
director server with -S option, returns only 40 mails and exit code 139.

	I'm using dovecot 2.1.5 and I attached doveconf -n at director and 
backend servers.

-- 
Angel L. Mateo Martínez
Sección de Telemática
Área de Tecnologías de la Información
y las Comunicaciones Aplicadas (ATICA)
http://www.um.es/atica
Tfo: 868887590
Fax: 868888337
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# 2.1.5: /etc/dovecot/dovecot.conf
# OS: Linux 3.2.19um1 x86_64 Ubuntu 12.04.1 LTS 
auth_cache_size = 20 M
auth_cache_ttl = 1 days
auth_debug = yes
auth_master_user_separator = *
auth_verbose = yes
default_process_limit = 1024
disable_plaintext_auth = no
log_timestamp = %Y-%m-%d %H:%M:%S
login_trusted_networks = 155.54.211.176/28
mail_debug = yes
mail_location = maildir:~/Maildir:INDEX=/var/indexes/%n
mail_privileged_group = mail
mdbox_rotate_size = 20 M
namespace {
  inbox = yes
  location = 
  prefix = 
  separator = .
}
namespace {
  hidden = yes
  list = no
  location = maildir:~/Maildir/expunged
  prefix = BORRADOS.
  separator = .
}
passdb {
  args = /etc/dovecot/master-users
  driver = passwd-file
  master = yes
  pass = yes
}
passdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
passdb {
  args = session=yes dovecot
  driver = pam
}
plugin {
  lazy_expunge = BORRADOS.
  quota = maildir:User quota
  quota_rule = *:storage=20G
  quota_rule2 = Trash:storage=+1G
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/sieve
  sieve_extensions = +imapflags
  sieve_max_redirects = 15
  zlib_save = gz
  zlib_save_level = 6
}
postmaster_address = postmaster at um.es
service anvil {
  client_limit = 2051
}
service auth {
  client_limit = 3072
  unix_listener auth-userdb {
    mode = 0666
  }
}
service doveadm {
  inet_listener {
    port = 24245
  }
}
service imap {
  process_limit = 5120
  process_min_avail = 6
  vsz_limit = 512 M
}
service ipc {
  unix_listener ipc {
    user = dovecot
  }
}
service lmtp {
  inet_listener lmtp {
    port = 24
  }
  process_min_avail = 10
  vsz_limit = 512 M
}
service pop3 {
  process_min_avail = 6
}
ssl = no
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key = </etc/ssl/private/dovecot.pem
userdb {
  args = username_format=%Ln /etc/dovecot/usersdb.%s
  driver = passwd-file
}
userdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
protocol lda {
  mail_plugins = " sieve"
}
protocol lmtp {
  mail_plugins = " sieve"
}
protocol pop3 {
  pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s, in=%i, out=%o
}
local 155.54.211.160/27/27 {
  doveadm_password = <password>
}
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# 2.1.5: /etc/dovecot/dovecot.conf
# OS: Linux 3.2.0-24-generic x86_64 Ubuntu 12.04.1 LTS 
auth_cache_size = 20 M
auth_cache_ttl = 1 days
auth_debug = yes
auth_master_user_separator = *
auth_username_format = %n
auth_verbose = yes
default_process_limit = 1024
director_mail_servers = 155.54.211.161-155.54.211.164
director_servers = 155.54.211.185 155.54.211.186
director_username_hash = %n
disable_plaintext_auth = no
doveadm_proxy_port = 24245
lmtp_proxy = yes
log_timestamp = %Y-%m-%d %H:%M:%S
mail_debug = yes
passdb {
  args = /etc/dovecot/master-users
  driver = passwd-file
  master = yes
  pass = yes
}
passdb {
  args = proxy=y nopassword=y proxy_timeout=600
  driver = static
}
plugin {
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/sieve
  sieve_extensions = +imapflags
  sieve_max_redirects = 15
}
service anvil {
  client_limit = 2051
}
service auth {
  client_limit = 3072
  unix_listener auth-userdb {
    mode = 0666
  }
}
service director {
  fifo_listener login/proxy-notify {
    mode = 0666
  }
  inet_listener {
    port = 9090
  }
  unix_listener director-userdb {
    mode = 0600
  }
  unix_listener login/director {
    mode = 0666
  }
}
service doveadm {
  inet_listener {
    port = 24245
  }
}
service imap-login {
  client_limit = 2206
  executable = imap-login director
  process_limit = 6
  process_min_avail = 6
  service_count = 0
}
service imap {
  process_limit = 5120
  process_min_avail = 6
  vsz_limit = 512 M
}
service ipc {
  unix_listener ipc {
    user = dovecot
  }
}
service lmtp {
  inet_listener lmtp {
    port = 24
  }
  process_min_avail = 10
  vsz_limit = 512 M
}
service pop3-login {
  client_limit = 833
  executable = pop3-login director
  process_limit = 6
  process_min_avail = 6
  service_count = 0
}
service pop3 {
  process_min_avail = 6
}
ssl = no
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key = </etc/ssl/private/dovecot.pem
userdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
protocol lmtp {
  auth_socket_path = director-userdb
}
protocol doveadm {
  auth_socket_path = director-userdb
}
local 155.54.211.160/27/27 {
  doveadm_password = <password>
}