Web UIs of Open Source Components

Scenario

Web UIs of different components are created and hosted on the Master or Core nodes in the MRS cluster by default. You can view information about the components on these web UIs.

Procedure for accessing the web UIs of open-source component:

Select an access method.
MRS provides the following methods for accessing the web UIs of open-source components:
- EIP-based Access: This method is recommended because it is easy to bind an EIP to a cluster.
- Creating an SSH Channel for Connecting to an MRS Cluster and Configuring the Browser: Use this method when the user and the MRS cluster are on different networks.
Access the web UIs. For details, see .

Web UIs

For clusters with Kerberos authentication enabled, user admin does not have the management permission on each component. To access the web UI of each component, create a user who has the management permission on the corresponding component.

**Table 1** Web UI addresses of open-source components
Cluster Type	Web UI Type	Web UI Address
All Types	MRS Manager	Applicable to clusters of all versions https://Floating IP address of Manager:28443/web NOTE: Ensure that the local host can communicate with the MRS cluster. Log in to the Master2 node remotely, and run the ifconfig command. In the command output, eth0:wsom indicates the floating IP address of MRS Manager. Record the value of inet. If the floating IP address of MRS Manager cannot be queried on the Master2 node, switch to the Master1 node to query and record the floating IP address. If there is only one Master node, query and record the cluster manager IP address of the Master node. For versions earlier than MRS 3.x: https://<EIP>:9022/mrsmanager?locale=en-us For details, see Accessing MRS Manager MRS 2.x or Earlier). For MRS 3.x or later, see Accessing FusionInsight Manager (MRS 3.x or Later).
Analysis cluster	HDFS NameNode	Versions earlier than MRS 3.x: On the cluster details page, choose Components > HDFS > NameNode Web UI > NameNode (Active). MRS 3.x or later: On the Manager homepage, choose Cluster > Services > HDFS > NameNode Web UI > *NameNode (Host name, Active)*.
	HBase HMaster	Versions earlier than MRS 3.x: On the cluster details page, choose Components > HBase > HMaster Web UI > HMaster (Active). MRS 3.x or later: On the Manager homepage, choose Cluster > Services > HBase > HMaster Web UI > *HMaster (Host name, Active)*.
	MapReduce JobHistoryServer	Versions earlier than MRS 3.x: On the cluster details page, choose Components > MapReduce > JobHistoryServer Web UI > JobHistoryServer. MRS 3.x or later: On the Manager homepage, choose Cluster > Services > MapReduce > JobHistoryServer Web UI > *JobHistoryServer (Host name, Active)*.
	YARN ResourceManager	Versions earlier than MRS 3.x: On the cluster details page, choose Components > Yarn > ResourceManager Web UI > ResourceManager (Active). MRS 3.x or later: On the Manager homepage, choose Cluster > Services > Yarn > ResourceManager Web UI > *ResourceManager (Host name, Active)*.
	Spark JobHistory	Versions earlier than MRS 3.x: On the cluster details page, choose Components > Spark > Spark Web UI > JobHistory. MRS 3.x or later: On the Manager homepage, choose Cluster > Services > Spark2x > Spark2x Web UI > *JobHistory2x (Host name, Active)*.
	Hue	Versions earlier than MRS 3.x: On the cluster details page, choose Components > Hue > Hue Web UI > Hue (Active). MRS 3.x or later: On the Manager homepage, choose Cluster > Services > Hue > Hue Web UI > *Hue (Host name, Active)*. Loader is a graphical data migration management tool based on the open-source Sqoop web UI, and its interface is hosted on the Hue web UI.
	Tez	Versions earlier than MRS 3.x: On the cluster details page, choose Components > Tez > Tez Web UI > TezUI. MRS 3.x or later: On the Manager homepage, choose Cluster > Services > Tez > Tez Web UI > *TezUI (Host name, Active)*.
	Presto	Versions earlier than MRS 3.x: On the cluster details page, choose Components > Presto > Presto Web UI > Coordinator (Active). On the Manager homepage, choose Cluster > Services > Presto > Coordinator Web UI > Coordinator (Coordinator).
	Ranger	Versions earlier than MRS 3.x: On the cluster details page, choose Components > Ranger > Ranger Web UI > RangerAdmin (Active). MRS 3.x or later: On the Manager homepage, choose Cluster > Services > Ranger > Ranger Web UI > RangerAdmin.
Stream processing cluster	Storm	Versions earlier than MRS 3.x: On the cluster details page, choose Components > Storm > Storm Web UI > UI. On the Manager homepage, choose Cluster > Services > Storm > Storm Web UI > *UI (Host name)*.