elasticsearch啓動報錯

啓動elasticsearch過程中的報錯，記錄一下解決方法

報錯

[1]: max number of threads [1024] for user [hadoop] is too low, increase to at least [2048]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[3]: system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk

方法

max number of threads

vim /etc/security/limits.conf

* soft nproc 65536
* hard nproc 65536
* soft nofile 65536
* hard nofile 65536

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

soft nproc 2048

vm.max_map_count

vi /etc/sysctl.conf
vm.max_map_count=262144

sysctl -p

system call filters

vim elasticsearch.yml
bootstrap.memory_lock: false
bootstrap.system_call_filter: false