HBase StoreFile in the Region of the by writing HDFS HFile format, so the RegionServer machine and the Region of the data? If not how can he not through graphs can parse HDFS file above, hive graphs is it not? And if so, the data on the RegionServer many, not a RegionServer goes down, how HMaster data recovery, he has no backup data region?

CodePudding user response:

HDFS is save that region RegionServer just did the data Table Table to the HDFS mapping, as shown in the figure below,

Reference

how could he not through graphs can resolve above the HDFS file

, in addition to graphs, also can be read by pressing the line, according to the data block read, read there are many means of HDFS file, not necessarily the way MapReudce read,