[GitHub] [hbase] saintstack opened a new pull request #655: HBASE-23055 Alter hbase:meta

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saintstack opened a new pull request #655:     HBASE-23055 Alter hbase:meta
URL: https://github.com/apache/hbase/pull/655
 
 
       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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