下面函数通过rpc(getControllerAlias(), getClusterPerf{true})得到agent和controller的相关信息，然后通过xdb连接节点后remoteRun得到license有效期。注意1.30.19和2.00.7之前的版本，getClusterPerf不能返回高可用集群中follower控制节点的信息，需要另外手工获取非领导控制节点的license信息。
/* * * @ brief Get the expiration date of the license on all nodes in the cluster. * @ param NULL * @ return a table containing expiration date of the license on each node * @ sample usage getAllLicenses() */ def getAllLicenses(){ t = select node as nodeAlias,value as endDate from pnodeRun(getLicenseExpiration) nodes = exec name, host, port from rpc(getControllerAlias(), getClusterPerf{true}) where not mode in [0, 4] for(i in 0..(size(nodes)-1)){ try{ conn = xdb(nodes[`host][i], nodes[`port][i]) t1 = remoteRun( conn, "table( getNodeAlias() as node ,getLicenseExpiration() as date)") t.append!(t1) } catch(ex){ print(ex) writeLog(ex) } } return t }