High availability of HDFS-NameNode
We already know that when a file is read or uploaded, it needs to go through the NameNode. If the NameNode is down, the client...
Read More
Tag: hdfs
How does HDFS-NameNode perceive the DataNode
December 13, 2023
by Sheila Davis
No Comments
In HDFS-HDFS, when the NameNode is started, it will open the RPC service, called ServicerPCServer. There are many protocols in this Server, one of which...
Read More
HDFS – The four roles of HDFS
December 13, 2023
by Rati Bajaj
No Comments
In the last article we have known that HDFS is to cut the file into blocks, and then stored in a number of servers, and...
Read More
Hadoop series
December 13, 2023
by Miss Hilary Rogers
No Comments
Hadoop - Cluster Install Hadoop - Cluster Install (High Availability) HDFSHDFS - More and More Files How to Do HDFS-Four Roles of HDFS-NameNode High Availability...
Read More
Big data Hadoop introduction to hadoop family details
December 9, 2023
by Amber Maldonado
No Comments
The term big data may have sounded unfamiliar to you a few years ago, but I'm sure it sounds familiar to you now when you...
Read More
HDFS Simple Analysis
December 8, 2023
by Jason Dillon
No Comments
Mapping relationships: Blockmaps are maintained in memory and NN does not persist such mappings. When the cluster is up and running, DN regularly reports blockreports...
Read More
What is big data?
December 6, 2023
by Antonio Robertson PhD
No Comments
Big data refers to massive amounts of data or data that are too large to be acquired, stored, managed, processed and refined by today's mainstream...
Read More