启动ElasticSearch报错[1]: max file descriptors [4096] for elasticsearch process is too low

最新推荐文章于 2024-03-20 16:32:54 发布
原创 最新推荐文章于 2024-03-20 16:32:54 发布 · 760 阅读 · 1 ·
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#elasticsearch #linux #运维

本文详细介绍了在启动Elasticsearch时可能遇到的三个常见错误信息及其解决方案，包括增加文件描述符数量、调整用户线程数和提升虚拟内存区域限制。通过修改limits.conf和sysctl.conf文件，可以有效避免这些错误，确保Elasticsearch服务正常运行。

es启动时有的机器会报以下错误信息:

[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]

[2]: max number of threads [3818] for user [es] is too low, increase to at least [4096]

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

解决办法：

修改 etc/security/limits.conf

sudo vi /etc/security/limits.conf

在文件最后面加上

  1. * soft nofile 65536

  2. * hard nofile 65536

  3. * soft nproc 4096

  4. * hard nproc 4096

注：*后面有空格

修改 /etc/sysctl.conf

sudo vi /etc/sysctl.conf

在文件最后面加上

vm.max_map_count=262144

vm.max_map_count=262144

配置重新生效

sysctl -p

重新启动

 

max file descriptors [65535] for elasticsearch process is too low,【已解决】
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注意：如果不生效，可能和命令行的缓存有关，关闭命令行重新打开，再启动 elasticsearch。添加配置：vm.max_map_count=262144，然后执行命令 sysctl -p。
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