saintstack opened a new pull request #667: HBASE-23055 Alter hbase:meta URL: https://github.com/apache/hbase/pull/667 Make it so hbase:meta can be altered. TableState for hbase:meta is kept in Master. State is in-memory transient so if Master fails, hbase:meta is ENABLED again. hbase:meta schema will be bootstrapped from the filesystem. Changes to filesystem schema are atomic so we should be ok if Master fails mid-edit (TBD) Undoes a bunch of guards that prevented our being able to edit hbase:meta. At minimmum, need to add in a bunch of WARNING. TODO: Tests, more clarity around hbase:meta table state, and undoing references to hard-coded hbase:meta regioninfo. M hbase-client/src/main/java/org/apache/hadoop/hbase/MetaTableAccessor.java Throw illegal access exception if you try to use MetaTableAccessor getting state of the hbase:meta table. M hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionImplementation.java For table state, go to master rather than go to meta direct. Going to meta won't work for hbase;meta state. Puts load on Master. M hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java Change isTableDisabled/Enabled implementation to ask the Master instead. This will give the Master's TableStateManager's opinion rather than client figuring it for themselves reading meta table direct. M hbase-client/src/main/java/org/apache/hadoop/hbase/client/RawAsyncHBaseAdmin.java TODO: Cleanup in here. Go to master for state, not to meta. M hbase-client/src/main/java/org/apache/hadoop/hbase/client/ZKAsyncRegistry.java Logging cleanup. M hbase-client/src/main/java/org/apache/hadoop/hbase/zookeeper/ZNodePaths.java Shutdown access. M hbase-server/src/main/java/org/apache/hadoop/hbase/TableDescriptors.java Just cleanup. M hbase-server/src/main/java/org/apache/hadoop/hbase/master/TableStateManager.java Add state holder for hbase:meta. Removed unused methods. M hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/RegionStateStore.java Shut down access. M hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/DisableTableProcedure.java Allow hbase:meta to be disabled. M hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/EnableTableProcedure.java Allow hbase:meta to be enabled.
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