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Editor to share with you what the HBase catalog means, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

/ hbase/.tmp: temporary directory under which the table is move when the table is created and deleted.

/ hbase/WALs:RegionServer A log that records operations during data insertion and deletion, called .logs at .94.

/ hbase/data: core directory, which stores data from Hbase tables

There are two directories under this directory by default

-Hbase/data/default: when the user creates a table and no namespace is specified, the table is created under this directory

-Hbase/data/hbase: table created inside the system, hbase:meta; namespace

/ hbase/hbase.id: unique cluster id of the storage cluster, (UUID)

/ hbase/hbase.version: cluster version number

/ hbase/oldWALs:

-corresponds to the .oldlogs directory in version 0.94

-when the logs in the / hbase/WALs directory is useless, these files will be moved to this directory, and Hmaster will clean it regularly

The above is all the contents of the article "what does the catalogue of HBase mean?" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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