|
gptkbp:instanceOf
|
gptkb:software
|
|
gptkbp:assignee
|
block locations
|
|
gptkbp:canBe
|
active
standby
|
|
gptkbp:communicatesVia
|
gptkb:DataNode
|
|
gptkbp:compatibleWith
|
actual data
|
|
gptkbp:criticalFor
|
HDFS operation
|
|
gptkbp:developedBy
|
gptkb:Apache_Software_Foundation
|
|
gptkbp:hasSinglePointOfFailure
|
true
|
|
gptkbp:hasWebUI
|
default port 9870
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
NameNode
|
|
gptkbp:introducedIn
|
gptkb:Hadoop_1.x
|
|
gptkbp:maintainedBy
|
file system tree
metadata for all files and directories
|
|
gptkbp:monitors
|
DataNode health
|
|
gptkbp:numberOfLocations
|
metadata of files and directories
|
|
gptkbp:partOf
|
gptkb:Hadoop_Distributed_File_System
|
|
gptkbp:performs
|
block management
namespace operations
|
|
gptkbp:recipient
|
client requests
|
|
gptkbp:role
|
manages file system namespace
regulates access to files by clients
|
|
gptkbp:storesMetadataIn
|
memory
|
|
gptkbp:supportsHighAvailability
|
gptkb:Hadoop_2.x_and_later
|
|
gptkbp:uses
|
edit log
fsimage
|
|
gptkbp:writtenBy
|
gptkb:Java
|
|
gptkbp:bfsParent
|
gptkb:HDFS
|
|
gptkbp:bfsLayer
|
6
|