solr启动报错，

solr启动报错，

solr启动报错解压后进行立即，运行出错：

./solr start

*** [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 3853. 
 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
WARNING: Starting Solr as the root user is a security risk and not considered best practice. Exiting.
         Please consult the Reference Guide. To override this check, start with argument '-force'

解决方法：

（1）找到文件bin下的solr.in.sh

编辑该文件，然后翻到文件的最下，可以看到这个

# Settings for common system values that may cause operational imparement when system defaults are used.
# Solr can use many processes and many file handles. On modern operating systems the savings by leaving
# these settings low is minuscule, while the consequence can be Solr instability. To turn these checks off, set
# SOLR_ULIMIT_CHECKS=false either here or as part of your profile.

# Different limits can be set in solr.in.sh or your profile if you prefer as well.
#SOLR_RECOMMENDED_OPEN_FILES=
#SOLR_RECOMMENDED_MAX_PROCESSES=
#SOLR_ULIMIT_CHECKS=

将其改为false 

# Settings for common system values that may cause operational imparement when system defaults are used.
# Solr can use many processes and many file handles. On modern operating systems the savings by leaving
# these settings low is minuscule, while the consequence can be Solr instability. To turn these checks off, set
# SOLR_ULIMIT_CHECKS=false either here or as part of your profile.

# Different limits can be set in solr.in.sh or your profile if you prefer as well.
#SOLR_RECOMMENDED_OPEN_FILES=
#SOLR_RECOMMENDED_MAX_PROCESSES=
SOLR_ULIMIT_CHECKS=fasle

保存后退出

运行./solr start

还是会出错

WARNING: Starting Solr as the root user is a security risk and not considered best practice. Exiting.
         Please consult the Reference Guide. To override this check, start with argument '-force'

这样就能成功运行

./solr start -force

Warning: Available entropy is low. As a result, use of the UUIDField, SSL, or any other features that require
RNG might not work properly. To check for the amount of available entropy, use 'cat /proc/sys/kernel/random/entropy_avail'.

NOTE: Please install lsof as this script needs it to determine if Solr is listening on port 8983.

Started Solr server on port 8983 (pid=2365). Happy searching!