es在线文档

#修改启动时加载自定义配置文件
ES_PATH_CONF=/path/to/my/config ./bin/elasticsearch	

配置项
node.name: ${HOSTNAME}
network.host: ${ES_NETWORK_HOST}
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch

jvm.options

英文的解释挺经典，就不献丑翻译了。

#代表改行为comment
lines beginning with # are treated as comments and are ignored# this is a comment
lines beginning with a - are treated as a JVM option that applies independent of the version of the JVM-Xmx2g
lines beginning with a number followed by a : followed by a - are treated as a JVM option that applies only if the version of the JVM matches 	the number8:-Xmx2g
lines beginning with a number followed by a - followed by a : are treated as a JVM option that applies only if the version of the JVM is greater than or equal to the number8-:-Xmx2g
lines beginning with a number followed by a - followed by a number followed by a : are treated as a JVM option that applies only if the version 	of the JVM falls in the range of the two numbers8-9:-Xmx2g
all other lines are rejected**ES_JAVA_OPTS**export ES_JAVA_OPTS="$ES_JAVA_OPTS -pdir=/path/to/temp/dir"./bin/elasticsearch

安全设置elasticsearch.keystore

1. 生成：elasticsearch-keystore create
2. 列举 elasticsearch-keystore list
3. add setting

elasticsearch-keystore add the.set