Mongodb之failed to create service entry worker thread

Mongodb "failed to create service entry worker thread" 错误。

系统:CentOS release 6.8 

mongod.log中包含内容：

"[thread1] failed to create service entry worker thread for "

暂时解决方法：

ulimit -a

core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 257611
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 64000
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 10240
cpu time               (seconds, -t) unlimited
max user processes              (-u) 32000
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

修改：

/etc/security/limits.d/90-nproc.conf  

# Default limit for number of user's processes to prevent
# accidental fork bombs.
# See rhbz #432903 for reasoning.

*          soft    nproc     32000
root       soft    nproc     unlimited

增加 /etc/security/limits.conf ：

#<domain>      <type>  <item>         <value>
#

#*               soft    core            0
#*               hard    rss             10000
#@student        hard    nproc           20
#@faculty        soft    nproc           20
#@faculty        hard    nproc           50
#ftp             hard    nproc           0
#@student        -       maxlogins       4

# End of file
*                soft    nofile          64000
*                hard    nofile          64000
*                soft    nproc           32000
*                hard    nproc           32000

暂时解决，未发现错误日志，决定继续观察几天，再来写结果。

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未再出现此问题