安装/升级海豚调度资源管理：UnknownHostException

[ERROR] 2021-11-16 11:08:21.000 org.apache.dolphinscheduler.common.utils.HadoopUtils:[180] - java.net.UnknownHostException: mycluster
java.lang.IllegalArgumentException: java.net.UnknownHostException: mycluster
	at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:378)
	at org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:310)
	at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:176)
	at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:678)
	at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:619)
	at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:149)

需要修改 /usr/local/dolphinscheduler-1.3.9/conf/config/install_config.conf

修改前
defaultFS="hdfs://mycluster:8020"

修改后
resourceUploadPath="/usr/local/dolphinscheduler-1.3.9/data"