Which object cannot Fusioninsight Manager manage?

FusionInsight Manager is the centralized operations and maintenance (O&M) component for the Huawei FusionInsight big data platform. Its core responsibility is the lifecycle management of the big data services and components that constitute the platform. This includes installing, configuring, starting, stopping, and monitoring services like HDFS (storage), YARN (resource management), and Spark (computing framework).

FusionInsight Manager operates on top of the host operating system (OS) but does not manage the OS itself. Tasks such as OS installation, kernel patching, security hardening, and system-level user management fall outside its scope and are handled by dedicated OS administration tools.

A. Spark: FusionInsight Manager is explicitly designed to manage the Spark computing framework, including its configuration, service status, and resource allocation within the cluster.

C. YARN: YARN is the core resource scheduler for the Hadoop ecosystem within FusionInsight. The Manager provides essential tools for configuring and monitoring YARN's resource queues and applications.

D. HDFS: As the primary distributed file system, HDFS is a fundamental component managed by FusionInsight Manager, which monitors the health of NameNodes and DataNodes and manages storage.

1. Huawei FusionInsight HD 6.5.1 Administrator Guide, Section: "O&M System (FusionInsight Manager)". This section details the functions of FusionInsight Manager, focusing on cluster, service, and host management. The managed entities are explicitly listed as the big data components (e.g., HDFS, YARN, Spark), while the OS is treated as part of the underlying infrastructure.

2. Huawei FusionInsight HD 6.5.1 Product Description, Chapter: "System Architecture". The architectural diagrams in this document clearly position FusionInsight Manager at the management layer, responsible for the service layer components. The Host OS is depicted as part of the foundational infrastructure layer, upon which the managed services run, illustrating a clear separation of concerns.