centos 8 启动Elasticsearch 的时候报错，导致无法启动Elasticsearch 。
[root@CentOS-8 ~]# journalctl -xe
Apr 07 18:25:56 CentOS-8.0 kernel: [ 8754] 0 8754 3180 63 69632 0 0 sh
Apr 07 18:25:56 CentOS-8.0 kernel: [ 8755] 0 8755 3180 64 69632 0 0 sh
Apr 07 18:25:56 CentOS-8.0 kernel: [ 8756] 0 8756 3180 64 65536 0 0 3013e4450cf4918
Apr 07 18:25:56 CentOS-8.0 kernel: [ 8757] 0 8757 3180 65 73728 0 0 ddfe8cb946c7444
Apr 07 18:25:56 CentOS-8.0 kernel: [ 8758] 0 8758 21732 1957 212992 0 0 btpython
Apr 07 18:25:56 CentOS-8.0 kernel: [ 8759] 0 8759 21732 1978 212992 0 0 btpython
Apr 07 18:25:56 CentOS-8.0 kernel: [ 9105] 0 9105 23228 226 221184 0 0 systemctl
Apr 07 18:25:56 CentOS-8.0 kernel: [ 9106] 0 9106 22453 211 208896 0 0 system