ERROR: [2] bootstrap checks failed.You must address the points described in the following [2] lines before starting Elasticsearch.
bootstrap checks failed [1] of [2]: memory locking requested for elasticsearch process but memory is not locked
bootstrap checks failed [1] of [2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
ERROR: Elasticsearch did not exit normally - check the logs at /a/es/logs/my-cluster.log
系统：centos7.6 （vm虚拟机）
软件：java-1.8、elasticsearch-5.6.16-1.noarch
错误信息：
2019-11-21T00:29:51,557\]\[ERROR\]\[o.e.b.Bootstrap \] \[elk-1\] node validation exception \[1\] bootstrap checks failed \[1\]: memory locking requested for elasticsearch process but memory is not locked 解决方法一(关闭bootstrap.memory_lock:，会影响性能）： ## vim /etc/elasticsearch/elasticsearch.yml // 设置成false就正常运行了。 bootstrap.memory_lock: false 解决方法二（开启bootstrap.memory_lock:）： 1. 修改文件/etc/elasticsearch/elasticsearch.yml，上面那个报错就是开启后产生的，如果开启还要修改其它系统配置文件 bootstrap.memory_lock: true 2. 修改文件/etc/security/limits.conf，最后添加以下内容。 ```bash vim /etc/security/limits.conf ``` ```bash * soft nofile 65536 * hard nofile 65536 * soft nproc 32000 * hard nproc 32000 * hard memlock unlimited * soft memlock unlimited ``` 3. 修改文件 /etc/systemd/system.conf ，分别修改以下内容。 ```bash DefaultLimitNOFILE=65536 DefaultLimitNPROC=32000 DefaultLimitMEMLOCK=infinity ``` 改好后重启下系统。再启动elasticsearch就没报错了 。 ```bash vim /etc/sysctl.conf ``` 保存文件并执行以下命令使修改生效： ```bash sysctl -p ``` es7.13.2启动报错： bootstrap checks failed \[1\] of \[2\]: max virtual memory areas vm.max_map_count \[65530\] is too low, increase to at least \[262144
bash
vim /etc/sysctl.conf
vm.max_map_count=262144
sysctl -p