在添加节点后，根据提示执行root.sh时报错：

CRS-5804: Communication error with agent process

CRS-4000: Command Start failed, or completed with errors.

Failed to start Oracle Grid Infrastructure stack

Failed to start Cluster Synchorinisation Service in clustered mode at /u01/app/11.2.0/grid/crs/install/crsconfig_lib.pm line 1278.

/u01/app/11.2.0/grid/perl/bin/perl -I/u01/app/11.2.0/grid/perl/lib -I/u01/app/11.2.0/grid/crs/install /u01/app/11.2.0/grid/crs/install/rootcrs.pl execution failed