[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
切换到root用户,编辑limits.conf添加如下内容
vi /etc/security/limits.conf
* soft nofile 65536
* hard nofile 65536
[2]: max number of threads [3818] for user [es] is too low, increase to at least [4096]
最大线程个数太低。修改配置文件etc/security/limits.conf,增加配置
* soft nproc 4096
* hard nproc 4096
[3]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
修改/etc/sysctl.conf文件,增加配置vm.max_map_count=262144
vi /etc/sysctl.conf
sysctl -p
执行命令sysctl -p生效
[4]: system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk
问题原因:因为Centos6不支持SecComp,而ES5.2.1默认bootstrap.system_call_filter为true进行检测,所以导致检测失败,失败后直接导致ES不能启动
解决方法:在elasticsearch.yml中配置bootstrap.system_call_filter为false,注意要在Memory下面:
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
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