IT/Server
[MongoDB] mongo 실행시 에러 : Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by :: Connection refused :connect@src/mongo/shell/mongo.js:341:17
쓔_쓔
2020. 7. 9. 18:51
mongo를 설치했다.
실행을하려고 명령어에 mongo를 입력했다.
에러가 뜬다.
Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed:
SocketException: Error connecting to 127.0.0.1:27017 ::
caused by :: Connection refused :connect@src/mongo/shell/mongo.js:341:17
왜 연결을 못하는지 모르겠다.. 구글링을 하여 다양한 해결법을 찾아본다.
#해결법1
sudo mongod --repair
sudo mongod여전히 안된다.
#해결법2
mongod를 입력했다.
다른 에러가 나온다.
exception in initAndListen: NonExistentPath: Data directory /data/db not found.
Create the missing directory or specify another path using (1) the --dbpath command line option,
or (2) by adding the 'storage.dbPath' option in the configuration file., terminating
해당 경로가 없나보다.. 경로를 만들어줘야겠다.
/data/db가 없다고 하니깐
해당 폴더를 만들어준다.
sudo mkdir -p /data/dbmongo를 다시 실행시킨다.
여전히 안된다...
>> $ mongod를 입력한다.
MongoDB starting : pid=19672 port=27017 dbpath=/data/db 64-bit host=ip-여기가127.0.0.1이 아니다..
그래서 나는 문제인가.. 다시 해결하러 간다..
#해결법3
>> $ service mongod status를 입력했다
mongod.service
Loaded: not-found (Reason: No such file or directory)
Active: failed (Result: exit-code) since Wed 2020-07-08 12:33:37 UTC; 14h ago
Main PID: 4142 (code=exited, status=14)상황이 좋지않다 실패다.
>> $ service mongo를 입력했다... mongo: unrecognized service가 나온다...
mongod를 입력해도 마찬가지다... 눙물난다....
일단 저 에러가 뭔지 확인하니.. /etc/init.d에 해당 파일이 없어서 service가 동작하지 못한다라는 그런 얘기다.
그럼 나는 파일을 넣어주러 가본다.
>> $ sudo vi /etc/init/mongod.conf
하단을 복사 붙여넣기하고 저장하고 나온다
# vim: set ft=upstart ts=4 et:
description "MongoDB"
start on runlevel [2345]
stop on runlevel [!2345]
# Recommended ulimit values for mongod or mongos
# See http://docs.mongodb.org/manual/reference/ulimit/#recommended-settings
#
limit fsize unlimited unlimited
limit cpu unlimited unlimited
limit as unlimited unlimited
limit nofile 64000 64000
limit rss unlimited unlimited
limit nproc 32000 32000
kill timeout 300 # wait 300s between SIGTERM and SIGKILL.
pre-start script
mkdir -p /var/lib/mongodb/
mkdir -p /var/log/mongodb/
end script
script
ENABLE_MONGODB="yes"
CONF=/etc/mongodb.conf
DAEMON=/usr/bin/mongod
DAEMONUSER=${DAEMONUSER:-mongodb}
if [ -f /etc/default/mongodb ]; then
. /etc/default/mongodb
fi
# Handle NUMA access to CPUs (SERVER-3574)
# This verifies the existence of numactl as well as testing that the command works
NUMACTL_ARGS="--interleave=all"
if which numactl >/dev/null 2>/dev/null && numactl $NUMACTL_ARGS ls / >/dev/null 2>/dev/null
then
NUMACTL="$(which numactl) -- $NUMACTL_ARGS"
DAEMON_OPTS=${DAEMON_OPTS:-"--config $CONF"}
else
NUMACTL=""
DAEMON_OPTS="-- "${DAEMON_OPTS:-"--config $CONF"}
fi
if [ "x$ENABLE_MONGODB" = "xyes" ]; then
exec start-stop-daemon --start --chuid $DAEMONUSER --exec $NUMACTL $DAEMON $DAEMON_OPTS
fi
end script
>> $ sudo vi /etc/init.d/mongod
하단을 복사 붙여넣기하고 저장하고 나온다
#!/bin/sh
#
# init.d script with LSB support.
#
# Copyright (c) 2007 Javier Fernandez-Sanguino
#
# This is free software; you may redistribute it and/or modify
# it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2,
# or (at your option) any later version.
#
# This is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License with
# the Debian operating system, in /usr/share/common-licenses/GPL; if
# not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
#
### BEGIN INIT INFO
# Provides: mongodb
# Required-Start: $network $local_fs $remote_fs
# Required-Stop: $network $local_fs $remote_fs
# Should-Start: $named
# Should-Stop:
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: An object/document-oriented database
# Description: MongoDB is a high-performance, open source, schema-free
# document-oriented data store that's easy to deploy, manage
# and use. It's network accessible, written in C++ and offers
# the following features:
# .
# * Collection oriented storage - easy storage of object-
# style data
# * Full index support, including on inner objects
# * Query profiling
# * Replication and fail-over support
# * Efficient storage of binary data including large
# objects (e.g. videos)
# * Auto-sharding for cloud-level scalability (Q209)
# .
# This package is build with V8 JavaScript engine.
# .
# High performance, scalability, and reasonable depth of
# functionality are the goals for the project.
### END INIT INFO
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/bin/mongod
DESC=database
# Default defaults. Can be overridden by the /etc/default/$NAME
NAME=mongodb
CONF=/etc/mongodb.conf
RUNDIR=/var/run/mongodb
PIDFILE=$RUNDIR/$NAME.pid
ENABLE_MONGODB=yes
# Include mongodb defaults if available
if [ -f /etc/default/$NAME ] ; then
. /etc/default/$NAME
fi
# Handle NUMA access to CPUs (SERVER-3574)
# This verifies the existence of numactl as well as testing that the command works
NUMACTL_ARGS="--interleave=all"
if which numactl >/dev/null 2>/dev/null && numactl $NUMACTL_ARGS ls / >/dev/null 2>/dev/null
then
NUMACTL="`which numactl` -- $NUMACTL_ARGS"
DAEMON_OPTS=${DAEMON_OPTS:-"--config $CONF"}
else
NUMACTL=""
DAEMON_OPTS="-- "${DAEMON_OPTS:-"--config $CONF"}
fi
if test ! -x $DAEMON; then
echo "Could not find $DAEMON"
exit 0
fi
if test "x$ENABLE_MONGODB" != "xyes"; then
exit 0
fi
. /lib/lsb/init-functions
STARTTIME=1
DIETIME=10 # Time to wait for the server to die, in seconds
# If this value is set too low you might not
# let some servers to die gracefully and
# 'restart' will not work
DAEMONUSER=${DAEMONUSER:-mongodb}
DAEMON_OPTS=${DAEMON_OPTS:-"--unixSocketPrefix=$RUNDIR --config $CONF run"}
set -e
running_pid() {
# Check if a given process pid's cmdline matches a given name
pid=$1
name=$2
[ -z "$pid" ] && return 1
[ ! -d /proc/$pid ] && return 1
cmd=`cat /proc/$pid/cmdline | tr "\000" "\n"|head -n 1 |cut -d : -f 1`
# Is this the expected server
[ "$cmd" != "$name" ] && return 1
return 0
}
running() {
# Check if the process is running looking at /proc
# (works for all users)
# No pidfile, probably no daemon present
[ ! -f "$PIDFILE" ] && return 1
pid=`cat $PIDFILE`
running_pid $pid $DAEMON || return 1
return 0
}
start_server() {
test -e "$RUNDIR" || install -m 755 -o mongodb -g mongodb -d "$RUNDIR"
# Start the process using the wrapper
start-stop-daemon --background --start --quiet --pidfile $PIDFILE \
--make-pidfile --chuid $DAEMONUSER \
--exec $NUMACTL $DAEMON $DAEMON_OPTS
errcode=$?
return $errcode
}
stop_server() {
# Stop the process using the wrapper
start-stop-daemon --stop --quiet --pidfile $PIDFILE \
--retry 300 \
--user $DAEMONUSER \
--exec $DAEMON
errcode=$?
return $errcode
}
force_stop() {
# Force the process to die killing it manually
[ ! -e "$PIDFILE" ] && return
if running ; then
kill -15 $pid
# Is it really dead?
sleep "$DIETIME"s
if running ; then
kill -9 $pid
sleep "$DIETIME"s
if running ; then
echo "Cannot kill $NAME (pid=$pid)!"
exit 1
fi
fi
fi
rm -f $PIDFILE
}
case "$1" in
start)
log_daemon_msg "Starting $DESC" "$NAME"
# Check if it's running first
if running ; then
log_progress_msg "apparently already running"
log_end_msg 0
exit 0
fi
if start_server ; then
# NOTE: Some servers might die some time after they start,
# this code will detect this issue if STARTTIME is set
# to a reasonable value
[ -n "$STARTTIME" ] && sleep $STARTTIME # Wait some time
if running ; then
# It's ok, the server started and is running
log_end_msg 0
else
# It is not running after we did start
log_end_msg 1
fi
else
# Either we could not start it
log_end_msg 1
fi
;;
stop)
log_daemon_msg "Stopping $DESC" "$NAME"
if running ; then
# Only stop the server if we see it running
errcode=0
stop_server || errcode=$?
log_end_msg $errcode
else
# If it's not running don't do anything
log_progress_msg "apparently not running"
log_end_msg 0
exit 0
fi
;;
force-stop)
# First try to stop gracefully the program
$0 stop
if running; then
# If it's still running try to kill it more forcefully
log_daemon_msg "Stopping (force) $DESC" "$NAME"
errcode=0
force_stop || errcode=$?
log_end_msg $errcode
fi
;;
restart|force-reload)
log_daemon_msg "Restarting $DESC" "$NAME"
errcode=0
stop_server || errcode=$?
# Wait some sensible amount, some server need this
[ -n "$DIETIME" ] && sleep $DIETIME
start_server || errcode=$?
[ -n "$STARTTIME" ] && sleep $STARTTIME
running || errcode=$?
log_end_msg $errcode
;;
status)
log_daemon_msg "Checking status of $DESC" "$NAME"
if running ; then
log_progress_msg "running"
log_end_msg 0
else
log_progress_msg "apparently not running"
log_end_msg 1
exit 1
fi
;;
# MongoDB can't reload its configuration.
reload)
log_warning_msg "Reloading $NAME daemon: not implemented, as the daemon"
log_warning_msg "cannot re-read the config file (use restart)."
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|force-stop|restart|force-reload|status}" >&2
exit 1
;;
esac
exit 0>> $ cd /etc/init.d
>> $ ls -al
>> $ chmod 755 mongod
>> $ service mongod start
>> $ service mongod status
● mongod.service - MongoDB Database Server
Loaded: loaded (/lib/systemd/system/mongod.service; disabled; vendor preset: enabled)
Active: active (running) since Thu 2020-07-09 09:44:12 UTC; 8s ago
Docs: https://docs.mongodb.org/manual
Main PID: 27981 (mongod)
CGroup: /system.slice/mongod.service
└─27981 /usr/bin/mongod --config /etc/mongod.conf일단 살렸다 mongod는....
mongo도살리려 했으나
>> $ mongo
MongoDB shell version v4.2.8
connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("549a7329-948f-4679-b53a-edc1312d1bec") }
MongoDB server version: 4.2.8
Server has startup warnings:
서버에 붙었다.. 되었다 이제....