es报错：Nativecontrollerprocesshasstopped-no

报错如下

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ERROR: [3] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2]: max number of threads [3780] for user [esyonghu] is too low, increase to at least [4096]
[3]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[2018-12-12T21:54:57,353][INFO ][o.e.n.Node               ] [PlbSkhz] stopping ...
[2018-12-12T21:54:57,413][INFO ][o.e.n.Node               ] [PlbSkhz] stopped
[2018-12-12T21:54:57,413][INFO ][o.e.n.Node               ] [PlbSkhz] closing ...
[2018-12-12T21:54:57,473][INFO ][o.e.n.Node               ] [PlbSkhz] closed
[2018-12-12T21:54:57,488][INFO ][o.e.x.m.j.p.NativeController] [PlbSkhz] Native controller process has stopped - no new native processes can be started

解决方法，增加如下内容

vi /etc/security/limits.conf
esyonghu soft nofile 65536
esyonghu hard nofile 65536
esyonghu soft nproc 4096
esyonghu hard nproc 4096

cd /etc/security/limits.d

vi 20-nproc.conf 

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

*          soft    nproc     4096
root       soft    nproc     unlimited

将*号改成用户名

esyonghu   soft    nproc     4096
root       soft    nproc     unlimited

增加如下内容

vi /etc/sysctl.conf 
vm.max_map_count = 655360
sysctl -p
vm.max_map_count = 655360