NodeManager
E705289
NodeManager is the per-node agent in Apache Hadoop YARN responsible for managing containers, monitoring resource usage, and reporting node status to the ResourceManager.
All labels observed (2)
| Label | Occurrences |
|---|---|
| NodeManager canonical | 3 |
| NodeManager web UI | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7985456 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: NodeManager Context triple: [YARN, hasComponent, NodeManager]
-
A.
Network Manager Operations Centre
The Network Manager Operations Centre is Eurocontrol’s central hub for managing and coordinating air traffic flow and capacity across the European aviation network.
-
B.
Ceph managers
Ceph managers are daemons in the Ceph distributed storage system responsible for monitoring cluster health, providing metrics, and supporting management and orchestration services.
-
C.
Memory Manager
Memory Manager is a classic Macintosh system software component responsible for allocating, tracking, and organizing application and system memory.
-
D.
Web-based System Manager
Web-based System Manager is a graphical administration tool for IBM AIX that allows system administrators to manage and configure the operating system through a browser-based interface.
-
E.
Enterprise Manager
Enterprise Manager is an older Microsoft SQL Server administration tool that was superseded by SQL Server Management Studio for managing and developing SQL Server databases.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: NodeManager Target entity description: NodeManager is the per-node agent in Apache Hadoop YARN responsible for managing containers, monitoring resource usage, and reporting node status to the ResourceManager.
-
A.
Network Manager Operations Centre
The Network Manager Operations Centre is Eurocontrol’s central hub for managing and coordinating air traffic flow and capacity across the European aviation network.
-
B.
Ceph managers
Ceph managers are daemons in the Ceph distributed storage system responsible for monitoring cluster health, providing metrics, and supporting management and orchestration services.
-
C.
Memory Manager
Memory Manager is a classic Macintosh system software component responsible for allocating, tracking, and organizing application and system memory.
-
D.
Web-based System Manager
Web-based System Manager is a graphical administration tool for IBM AIX that allows system administrators to manage and configure the operating system through a browser-based interface.
-
E.
ApplicationMaster
ApplicationMaster is the per-application coordinator in Hadoop YARN responsible for managing an application's lifecycle, resource requests, and task execution.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
YARN component
ⓘ
per-node agent ⓘ |
| aggregates | container logs to HDFS (when enabled) ⓘ |
| belongsTo | a YARN cluster ⓘ |
| canRun | multiple containers concurrently ⓘ |
| checks | node health via health-check scripts ⓘ |
| communicatesWith | ResourceManager ⓘ |
| configuredBy | yarn-site.xml ⓘ |
| enforces | resource limits per container ⓘ |
| exposes |
NodeManager web UI
ⓘ
linked to:
NodeManager
|
| handles |
container restart
ⓘ
container start ⓘ container stop ⓘ |
| hasConfigurationProperty |
yarn.nodemanager.local-dirs
ⓘ
yarn.nodemanager.log-dirs ⓘ yarn.nodemanager.resource.cpu-vcores ⓘ yarn.nodemanager.resource.memory-mb ⓘ |
| hasRole |
manages containers on a node
ⓘ
monitors resource usage on a node ⓘ reports node status to the ResourceManager ⓘ |
| implements | YARN NodeManager service ⓘ |
| introducedIn |
Hadoop 2.x
ⓘ
linked to:
Hadoop
|
| listensOn | NodeManager RPC port ⓘ |
| logs | container stdout and stderr ⓘ |
| maintainedBy | Apache Hadoop community ⓘ |
| manages | YARN containers ⓘ |
| monitors |
CPU usage
ⓘ
disk usage ⓘ memory usage ⓘ network usage ⓘ |
| partOf |
Apache Hadoop
ⓘ
linked to:
Hadoop
Apache Hadoop YARN ⓘ
linked to:
YARN
|
| replaced | TaskTracker ⓘ |
| reports |
container status
ⓘ
node health ⓘ resource utilization ⓘ |
| runsOn | worker node ⓘ |
| stores | localized application files ⓘ |
| supports |
container lifecycle management
ⓘ
localization of application resources ⓘ log aggregation ⓘ resource isolation ⓘ |
| uses |
cgroups for resource isolation (on Linux)
ⓘ
container executor ⓘ |
| validIn | YARN resource management model ⓘ |
| writtenIn | Java ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: NodeManager Description of subject: NodeManager is the per-node agent in Apache Hadoop YARN responsible for managing containers, monitoring resource usage, and reporting node status to the ResourceManager.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: NodeManager