fork: 无法分配内存解决方法

[root@iZ23am9cwvgZ ~]# ps aux | grep tomcat

-bash: fork: 无法分配内存

[root@iZ23am9cwvgZ ~]#

             total       used       free     shared    buffers     cached

Mem:         15951      15136        815          0        161       1241

-/+ buffers/cache:      13733       2218

Swap:            0          0          0

[root@iZ23am9cwvgZ ~]#

             total       used       free     shared    buffers     cached

Mem:            15         14          0          0          0          1

-/+ buffers/cache:         13          2

Swap:            0          0          0

[root@iZ23am9cwvgZ ~]#

kernel.pid_max = 32768

[root@iZ23am9cwvgZ ~]#

32140

[root@iZ23am9cwvgZ ~]# more /proc/sys/kernel/pid_max

32768

[root@iZ23am9cwvgZ ~]#

[root@iZ23am9cwvgZ ~]# more /proc/sys/kernel/pid_max

60000

[root@iZ23am9cwvgZ ~]#