启动elasticsearch报错

Phantom05

于 2020-03-27 16:13:17 发布

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文章标签： elasticsearch centos

本文链接：https://blog.youkuaiyun.com/Phantom05/article/details/105143826

本文详细介绍了如何解决Elasticsearch在运行过程中遇到的文件描述符限制、虚拟内存区域数量及线程数不足的问题，通过修改系统配置文件，提高Elasticsearch的性能。

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max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535]

echo “* soft nofile 65535” >> /etc/security/limits.conf
echo ‘“”* hard nofile 65535” >> /etc/security/limits.conf

需重启

max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

sysctl –w vm.max_map_count=262144 #(临时生效)
echo “vm.max_map_count=262144” >> /etc/sysctl.conf #(永久生效，需使用sysctl -p)

需重启

3.max number of threads [1024] for user [elk] is to low , incease to at least [4096]

echo “elk soft nproc 65535” >> /etc/security/limits.conf
echo “elk hard nproc 65535” >> /etc/security/limits.conf

需重启