There are 230 nodes in the Fusioninsight HD group of a university. When planning a cluster, which of the following processes should be deployed on the data node? (Multiple choices)

In a large-scale Huawei FusionInsight HD cluster, nodes are typically categorized into management and data (or worker) roles. Data nodes are responsible for distributed data storage and parallel computation. Therefore, they host the worker/slave processes of the various big data components. The HDFS DataNode process stores data blocks. The YARN NodeManager manages container execution on the node. The HBase RegionServer serves data for specific table regions. The SolrServer handles distributed indexing and search tasks. These processes are co-located on data nodes to leverage data locality and maximize performance.

B. NameNode: This is the master process for HDFS, managing the file system's metadata. It runs on dedicated management nodes, not data nodes.
E. DBServer: This process manages the metadata databases for services like Hive and Oozie. It is a management role deployed on management nodes.

1. Huawei FusionInsight HD 6.5.1 Administrator Guide, Section: "Cluster Architecture > Node Functions". This section details the division of nodes into Management, Control, and Data nodes, specifying that processes like DataNode and NodeManager are deployed on Data nodes, while NameNode is deployed on Management nodes.

2. Huawei FusionInsight HD 6.5.1 Planning Guide, Section: "Service Role Planning > Role Deployment Principles". This document explicitly states the deployment principles for a cluster. It confirms that DataNode, NodeManager, RegionServer, and SolrServer are roles planned for data nodes to process and store data, whereas NameNode and DBServer (part of the management plane's metadata storage) are deployed on management nodes.

3. HCIA-Big Data V3.0 Training Material (Huawei Official Courseware), Chapter: "FusionInsight HD Architecture". The courseware illustrates the standard deployment architecture, showing worker components (DataNode, NodeManager, RegionServer) on data nodes and master components (NameNode, ResourceManager) on management nodes. This principle applies directly to the H13-711 V2 exam syllabus.