Hadoop
Hadoop-cluster installation
Hadoop-cluster installation (high availability)
HDFS
HDFS-What to do if
HDFS-The four roles of HDFS
HDFS-NameNode's high availability
HDFS-What is the safe mode
HDFS-How does the NameNode perceive the
HDFS-what is metadata
HDFS-How does the double buffering mechanism ensure high concurrent requests for metadata
HDFS-How is the CheckPoint mechanism implemented?
HDFS-those things that write data
HDFS source code mind map
NameNode start
DataNode start
Metadata Management-Client
Metadata Management-Server
Metadata Management-Standby to read Journalnode data
metadata management-checkpoint
write data process-create
write data flow-write
write data flow-queue processing
write data process-DataNode processing
**粗体** _斜体_ [链接](http://example.com) `代码` - 列表 > 引用。你还可以使用@来通知其他用户。