完整的警告信息：

*** [WARN] *** Your open file limit is currently 1024.  
 It should be set to 65000 to avoid operational disruption. 
 If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false in your profile or solr.in.sh
*** [WARN] ***  Your Max Processes Limit is currently 30515. 
 It should be set to 65000 to avoid operational disruption. 
 If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false in your profile or solr.in.sh

 

方法：

编辑limits.conf文件：

sudo vim /etc/security/limits.conf

1.针对Your open file limit is currently 1024，增加hard nofile和soft nofile的配置

2.针对Your Max Processes Limit is currently 47448，增加hard nproc和soft nproc的配置

1和2合起来就是在limits.conf文件追加4行：

* hard nofile 65535
* soft nofile 65535
* hard nproc 65535
* soft nproc 65535