Big Data Interview Questions Hundred Days Update Index Catalog

Big Data Interview Questions Hundred Days Update Index Catalog

The study of big data focuses on understanding, and memory is the prerequisite for understanding. In order to have a better interview and facilitate indexing by yourself,
this catalog
is created. This is the first pass of the test questions on the back

Day01: hdfs read and write file process

Day02: When
HDFS is reading a file, what if one of the blocks is suddenly damaged? When
HDFS is uploading a file, what if one of the DataNodes suddenly hangs?

Day03:
What operations will the NameNode do when it starts

Day04:
Secondary NameNode Do you understand, how does it work?

Day05: The
Secondary NameNode cannot restore all the data of the NameNode, so how to ensure the security of the NameNode data storage

Day06:
Will there be a split brain problem in NameNode HA? How to solve split brain