Details
Major - P3 Description
When you start the mongod as a service, it starts with user=mongodb and group=nogroup. This can be seen from the file permissions in /proc/pid
root@genique:~# ls -la /proc/28109
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total 0
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dr-xr-xr-x 9 mongodb nogroup 0 May 20 12:54 ./
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dr-xr-xr-x 386 root root 0 May 6 17:48 ../
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dr-xr-xr-x 2 mongodb nogroup 0 May 20 14:15 attr/
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-rw-r--r-- 1 mongodb nogroup 0 May 20 14:15 autogroup
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-r-------- 1 mongodb nogroup 0 May 20 14:15 auxv
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 cgroup
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--w------- 1 mongodb nogroup 0 May 20 14:15 clear_refs
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-r--r--r-- 1 mongodb nogroup 0 May 20 12:54 cmdline
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-rw-r--r-- 1 mongodb nogroup 0 May 20 14:15 comm
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-rw-r--r-- 1 mongodb nogroup 0 May 20 14:15 coredump_filter
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 cpuset
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lrwxrwxrwx 1 mongodb nogroup 0 May 20 13:09 cwd -> /
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-r-------- 1 mongodb nogroup 0 May 20 14:13 environ
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lrwxrwxrwx 1 mongodb nogroup 0 May 20 12:54 exe -> /usr/bin/mongod
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dr-x------ 2 mongodb nogroup 0 May 20 12:54 fd/
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dr-x------ 2 mongodb nogroup 0 May 20 13:09 fdinfo/
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-rw-r--r-- 1 mongodb nogroup 0 May 20 14:15 gid_map
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-r-------- 1 mongodb nogroup 0 May 20 14:15 io
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 latency
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 limits
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-rw-r--r-- 1 mongodb nogroup 0 May 20 14:15 loginuid
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-r--r--r-- 1 mongodb nogroup 0 May 20 13:09 maps
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dr-x------ 2 mongodb nogroup 0 May 20 14:15 map_files/
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-rw------- 1 mongodb nogroup 0 May 20 14:15 mem
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 mountinfo
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 mounts
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-r-------- 1 mongodb nogroup 0 May 20 14:15 mountstats
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dr-xr-xr-x 7 mongodb nogroup 0 May 20 14:15 net/
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dr-x--x--x 2 mongodb nogroup 0 May 20 14:15 ns/
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-r--r--r-- 1 mongodb nogroup 0 May 20 12:54 numa_maps
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-rw-r--r-- 1 mongodb nogroup 0 May 20 14:15 oom_adj
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 oom_score
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-rw-r--r-- 1 mongodb nogroup 0 May 20 12:54 oom_score_adj
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 pagemap
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 personality
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-rw-r--r-- 1 mongodb nogroup 0 May 20 14:15 projid_map
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lrwxrwxrwx 1 mongodb nogroup 0 May 20 13:09 root -> /
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-rw-r--r-- 1 mongodb nogroup 0 May 20 14:15 sched
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 schedstat
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 sessionid
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 smaps
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 stack
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-r--r--r-- 1 mongodb nogroup 0 May 20 12:54 stat
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-r--r--r-- 1 mongodb nogroup 0 May 20 12:54 statm
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-r--r--r-- 1 mongodb nogroup 0 May 20 12:54 status
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 syscall
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dr-xr-xr-x 20 mongodb nogroup 0 May 20 14:15 task/
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 timers
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-rw-r--r-- 1 mongodb nogroup 0 May 20 14:15 uid_map
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-r--r--r-- 1 mongodb nogroup 0 May 20 14:15 wchan
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Can this be changed to also start with group=mongodb? The relevant change in the init.d script is:
@@ -28,6 +28,7 @@
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CONF=/etc/mongod.conf
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DAEMON=/usr/bin/mongod
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DAEMONUSER=${DAEMONUSER:-mongodb}
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+ DAEMONGROUP=${DAEMONGROUP:-mongodb}
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if [ -f /etc/default/mongod ]; then . /etc/default/mongod; fi
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@@ -45,6 +46,6 @@
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if [ "x$ENABLE_MONGOD" = "xyes" ]
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then
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- exec start-stop-daemon --start --chuid $DAEMONUSER --exec $NUMACTL $DAEMON $DAEMON_OPTS
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+ exec start-stop-daemon --start --chuid $DAEMONUSER:$DAEMONGROUP --exec $NUMACTL $DAEMON $DAEMON_OPTS
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fi
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end script |