[GitHub] [hbase] saintstack opened a new pull request #646: HBASE-23055 Alter hbase:meta

[GitBox <gi...@apache.org>]

saintstack opened a new pull request #646: HBASE-23055 Alter hbase:meta
URL: https://github.com/apache/hbase/pull/646
 
 
   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
    TODO: getTableState needs work in Connection implemetnations. Presumes
    state is in meta table for all tables. Uses MetaTableAccessor.
    TODO: More cleanup in here and more cleanup in async versions.
   
   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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