使用supervior 监控 elasticsearch 进程

elasticsearch引擎在使用中可能会出现后台守护进程挂掉的情况，需要手动启动来恢复正常。

这时则可以引用supervior进程管理工具来监控elasticsearch进程状态，实现进程挂掉自动重启的效果。

vi supervior.conf

 //elasticsearch进程配置
 [program:elasticsearch]
 command=sh /mnt/elasticsearch-6.3./bin/elasticsearch
 stderr_logfile=/var/log/Elastic.err.log
 stdout_logfile=/var/log/Elastic.out.log
 environment=JAVA_HOME=/usr/bin/java
 autostart=true
 autorestart=true
 startsecs=
 numprocs=
 user=elastic

ERROR: [1] bootstrap checks failed
[1]: max file descriptors [65535] for elasticsearch process is too low, increase to at least [65536]

编辑 /etc/security/limits.conf

root soft nofile 65536
root hard nofile 65536
elastic soft nofile 65536
elastic hard nofile 65536