[HBASE-12035] Keep table state in META

• Type: Improvement
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: Client, master
• Hadoop Flags: Reviewed
• Assignee: Andrey Stepachev
• Reporter: Enis Soztutar
• Created: 20/Sep/14 00:20
• Updated: 17/Jun/22 17:23
• Resolved: 10/Feb/15 22:45

Description

HBASE-7767 moved table enabled|disabled state to be kept in hdfs instead of zookeeper. isTableDisabled() which is used in HConnectionImplementation.relocateRegion() now became a master RPC call rather than a zookeeper client call. Since we do relocateRegion() calls everytime we want to relocate a region (region moved, RS down, etc) this implies that when the master is down, the some of the clients for uncached regions will be affected.

See HBASE-7767 and HBASE-11974 for some more background.

Issue Links

• is related to: HBASE-11974 When a disabled table is scanned, NotServingRegionException is thrown instead of TableNotEnabledException
• is related to: HBASE-13029 Table state should be deleted from META as a last operation in DeleteTableHandler
• is related to: HBASE-11978 Backport 'HBASE-7767 Get rid of ZKTable, and table enable/disable state in ZK' to 1.0
• relates to: HBASE-13018 WALSplitter should not try to get table states while splitting META
• relates to: HBASE-13016 Clean up remnants of table states stored in table descriptors
• relates to: HBASE-13017 Backport HBASE-12035 Keep table state in Meta to branch-1