解决elasticsearch启动报错[1]: max file descriptors [4096] ......[2]: max virtual memory areas......

解决elasticsearch启动报错

ERROR: [2] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

两个错误：第一个，Linux系统的soft、hard值配置过低，至少65535；第二个，Linux系统vm.max_map_count值配置过低，至少262144

vim /etc/security/limits.conf
#*               soft    core            0
#*               hard    rss             10000
*               soft    nofile           65535
*               hard    nofile           65535

vim /etc/sysctl.conf
vm.max_map_count=262144
#sysctl -p   生效
[root@localhost es]# sysctl -p
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 4098955264
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.core.wmem_default = 262144
net.core.rmem_default = 262144
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_max = 4194304
net.core.wmem_max = 1048576
vm.max_map_count = 262144
[root@localhost es]#

然后切到es目录执行启动命令
./elasticsearch
启动成功


./elasticsearch -d 可以后台启动，关闭shell会话也不会影响es的运行