This topic provides information about the service users for Hadoop. HDP Installer creates the following service users:
![[Note]](../common/images/admon/note.png) | Note |
|---|---|
The user names for these service users cannot be modified. |
| HDP Service | User Name | Notes |
| HDFS | hdfs |
NameNode, Secondary NameNode, and the DataNodes run as the
hdfs user. |
| YARN | yarn |
ResourceManager and the NodeManagers run as the yarn
user. |
| HBase | hbase |
HBase Master and the RegionServers run as the hbase
user. |
| Hive Metastore | hive |
Hive Metastore runs as the hive user. |
| Zookeeper | zookeeper |
Zookeeper server runs as the zookeeper user. |
| Oozie | oozie |
Oozie metastore runs as the oozie user. |
