sunhelly commented on issue #657: HBASE-22932 Add rs group management methods in Admin and AsyncAdmin URL: https://github.com/apache/hbase/pull/657#issuecomment-547706889 Because currently on HBASE-22514, moving table to a group will modify this table, so when moving META table to a group, it will throw Exception at ` /** * Adds (or updates) the table descriptor to the FileSystem * and updates the local cache with it. */ @Override public void add(TableDescriptor htd) throws IOException { if (fsreadonly) { throw new NotImplementedException("Cannot add a table descriptor - in read only mode"); } TableName tableName = htd.getTableName(); if (TableName.META_TABLE_NAME.equals(tableName)) { throw new NotImplementedException(HConstants.NOT_IMPLEMENTED); } if (HConstants.HBASE_NON_USER_TABLE_DIRS.contains(tableName.getNameAsString())) { throw new NotImplementedException( "Cannot add a table descriptor for a reserved subdirectory name: " + htd.getTableName().getNameAsString()); } updateTableDescriptor(htd); }`
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