問題出現環境,OS版本:CentOS-6
ES版本:elasticsearch-7.2
1、max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
每個程序最大同時打開檔案數太小,可通過下面2個指令檢視目前數量
ulimit -Hn
ulimit -Sn
修改/etc/security/limits.conf檔案,增加配置,使用者退出後重新登入生效
- soft nofile 65536
- hard nofile 65536
2、max number of threads [3818] for user [es] is too low, increase to at least [4096]
問題同上,最大線程個數太低。修改配置檔案/etc/security/limits.conf(和問題1是一個檔案),增加配置
- soft nproc 4096
-
hard nproc 4096
修改檔案 /etc/security/limits.d
-
soft nproc 1024
修改為
- soft nproc 4096
可通過指令檢視
ulimit -Hu
ulimit -Su
3、max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
修改/etc/sysctl.conf檔案,增加配置vm.max_map_count=262144