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bug#23202: 24.5; emacsclient confusing server connection message

From: Live System User
Subject: bug#23202: 24.5; emacsclient confusing server connection message
Date: Sat, 02 Apr 2016 18:46:58 -0400

When invoking `(server-start)' within ~/.emacs, Emacs corrrectly starts
up the server and creates the server file:

$ cat ~/.emacs.d/server/server | head -1 18238

$ ps -ef | grep -v grep | grep 18238
liveuser 18238  7509  0 Mar31 pts/3    00:00:13 emacs

$  netstat -tulpa | grep 46791
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 localhost.localdo:46791*               LISTEN      

Now, when invoking emacsclient, I get the following message:

$ emacsclient +12:2 ~/.emacs
emacsclient: can't find socket; have you started the server?
To start the server in Emacs, type "M-x server-start".
Waiting for Emacs...

Even though I get this message, apparently. emacsclient does find the
network socket and brings up the "~/.emacs" file in an emacs window.

In Emacs, invoking `(list-processes)' yields:

server          listen  --              --           (network server on local)
server <127.... open    --              --           (network connection to

.%  *Process List*          166 Process Menu     
  * .emacs                73761 Emacs-Lisp       ~/.emacs
 %  *GNU Emacs*             858 Fundamental      
    *scratch*               191 Lisp Interaction 
 %* *Messages*             2285 Messages         

So why give a warning message of "can't find socket" if the connection is
subsequentially successful (the server *was* started) and it gets its
connection information from the server file, even though the server file
is not an actual "socket"?

Could it be that invoking emacsclient, by default, first looks for the
server socket file in /tmp/emacs<UID>/server ?  And then falls back to
the ~/.emacs.d/server/server server file if that socket doesn't

But because of the default precedence. it doesn't determine whether a
server actually doesn't exists before emitting the warning?


In GNU Emacs 24.5.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.18.7)
 of 2016-02-03 on buildhw-05.phx2.fedoraproject.org
Windowing system distributor `Fedora Project', version 11.0.11799901
Configured using:
 `configure --build=x86_64-redhat-linux-gnu
 --host=x86_64-redhat-linux-gnu --program-prefix=
 --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr
 --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
 --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64
 --libexecdir=/usr/libexec --localstatedir=/var
 --sharedstatedir=/var/lib --mandir=/usr/share/man
 --infodir=/usr/share/info --with-dbus --with-gif --with-jpeg --with-png
 --with-rsvg --with-tiff --with-xft --with-xpm --with-x-toolkit=gtk3
 --with-gpm=no build_alias=x86_64-redhat-linux-gnu
 host_alias=x86_64-redhat-linux-gnu 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g
 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4
 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
 -m64 -mtune=generic' LDFLAGS=-Wl,-z,relro'

Important settings:
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Group

Minor modes in effect:
  gnus-undo-mode: t
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
Checking new news...done
Warning: Opening nnimap server on gmail...failed: ; Server nnimap+gmail 
previously determined to be down; not retrying; Opening nnimap server on 
gmail...failed: ; Server nnimap+gmail previously determined to be down; not 
retrying; Opening nnimap server on gmail...failed: ; Unable to open server 
nnimap+gmail due to: gmail/993 No address associated with hostname; Opening 
nnimap server on dada...failed: ; Opening nnimap server on gmail...failed: ; 
Unable to open server nnimap+gmail due to: gmail/993 No address associated with 
M-s e is undefined
Read ~/.gnus
v is undefined
e is undefined
Read ~/.gnus
Quit [2 times]
gnutls.c: [0] (Emacs) fatal error: Error in the pull function.

Load-path shadows:
~/.emacs.d/lisp/ntlm hides /usr/share/emacs/24.5/lisp/net/ntlm

(shadow sort mail-extr emacsbug sendmail mule-util server nndraft nnmh
nndoc utf-7 rfc2104 nnfolder nnimap utf7 parse-time netrc gnutls
network-stream starttls tls gnus-agent gnus-srvr gnus-score score-mode
nnvirtual gnus-msg gnus-art mm-uu mml2015 mm-view mml-smime smime dig
mailcap nntp gnus-cache epa-file epa derived epg epg-config auth-source
eieio byte-opt bytecomp byte-compile cl-extra cconv eieio-core sieve
sieve-mode sieve-manage password-cache nnir gnus-sum gnus-group
gnus-undo nnmail mail-source gnus-start gnus-spec gnus-int gnus-range
message format-spec rfc822 mml easymenu mml-sec mm-decode mm-bodies
mm-encode mail-parse rfc2231 rfc2047 rfc2045 ietf-drums mailabbrev
gmm-utils mailheader gnus-win gnus gnus-ems wid-edit cl-loaddefs cl-lib
nnoo nnheader gnus-util mm-util help-fns mail-prsvr mail-utils time-date
tooltip electric uniquify ediff-hook vc-hooks lisp-float-type mwheel
x-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list
newcomment lisp-mode prog-mode register page menu-bar rfn-eshadow timer
select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai
tai-viet lao korean japanese hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help
simple abbrev minibuffer nadvice loaddefs button faces cus-face macroexp
files text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process
dbusbind gfilenotify dynamic-setting system-font-setting
font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs)

Memory information:
((conses 16 215242 19509)
 (symbols 48 118916 0)
 (miscs 40 70 226)
 (strings 32 83510 6948)
 (string-bytes 1 3112521)
 (vectors 16 20051)
 (vector-slots 8 576302 11990)
 (floats 8 226 496)
 (intervals 56 544 18)
 (buffers 960 29)
 (heap 1024 60858 19399))

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