问未能在Linux上安装rabbitmq-服务器(Oracle Linux Server版本6.7/RHEL)

EN

$ sudo yum install rabbitmq-server
Loaded plugins: aliases, changelog, fastestmirror, kabi, presto, refresh-packagekit, security, tmprepo, ulninfo, verify, versionlock
Loading support for kernel ABI
Setting up Install Process
Loading mirror speeds from cached hostfile
 * epel: archive.linux.duke.edu
 * ol6_UEKR3: slcac475.us.oracle.com
 * ol6_latest: slcac475.us.oracle.com
Resolving Dependencies
--> Running transaction check
---> Package rabbitmq-server.noarch 0:3.1.5-1.el6 will be installed
--> Finished Dependency Resolution`
...
...
...
groupadd: Can't get unique system GID (no more available GIDs)
useradd: group 'rabbitmq' does not exist 
error: %pre(rabbitmq-server-3.1.5-1.el6.noarch) scriptlet failed, exit status 6
Error in PREIN scriptlet in rpm package rabbitmq-server-3.1.5-1.el6.noarch
error:   install: %pre scriptlet failed (2), skipping rabbitmq-server-3.1.5-1.el6
Verifying  :
 rabbitmq-server-3.1.5-1.el6.noarch

Failed 
rabbitmq-server.noarch 0:3.1.5-1.el6
Complete!