1: 背景：
关于释放Splunk search head 的job 运行压力：splunk search head cluster 要重启的话，怎么办？
答案是：splunk rolling-restart shcluster-members
Initiate a rolling restart from the command line
Invoke the splunk rolling-restart command from any member:
splunk rolling-restart shcluster-members
亮点：
要注意的是：并不是这个命令都在任何情况下可以用，当search head 的 [shclustering] stanza of server.conf 有变化的时候，要每台search head server 修改好后，每台重启：
When changing configuration settings in the [shclustering] stanza of server.conf, you must restart all members at approximately the same time to maintain identical settings across all members. Do not use the splunk rolling-restart command to restart the members after such configu
