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ElasticSearch请求锁住内存失败-爱吃糖的蓝胖子
source link: https://blog.51cto.com/xvjunjie/2488450
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ElasticSearch请求锁住内存失败
具体错误信息：
[2020-04-18T21:40:31,571][ERROR][o.e.b.Bootstrap ] [node-1] node validation exception
[1] bootstrap checks failed
[1]: memory locking requested for elasticsearch process but memory is not locked解决思路：
（1）调整JVM内存为物理机内存大小的50%，官方推荐，配置文件/etc/sysconfig/elasticsearch
ES_JAVA_OPTS="-Xms4g -Xmx4g"
MAX_LOCKED_MEMORY=unlimited（2）修改/etc/security/limits.conf文的件内容，取消限制
elasticsearch soft memlock unlimited
elasticsearch hard memlock unlimited（3）在/etc/systemd/system/elasticsearch.service.d目录下创建一个文件override.conf，并添加下列内容。
这个elasticsearch.service.d也需要创建一下：
[Service]
LimitMEMLOCK=infinity最后重启机器，就好了。
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