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From GitBox <...@apache.org>
Subject [GitHub] [cassandra] dvohra commented on a change in pull request #402: New/virtualtables
Date Fri, 14 Feb 2020 17:45:20 GMT
dvohra commented on a change in pull request #402: New/virtualtables
URL: https://github.com/apache/cassandra/pull/402#discussion_r379561239
 
 

 ##########
 File path: doc/source/new/virtualtables.rst
 ##########
 @@ -0,0 +1,586 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+.. or more contributor license agreements.  See the NOTICE file
+.. distributed with this work for additional information
+.. regarding copyright ownership.  The ASF licenses this file
+.. to you under the Apache License, Version 2.0 (the
+.. "License"); you may not use this file except in compliance
+.. with the License.  You may obtain a copy of the License at
+..
+..     http://www.apache.org/licenses/LICENSE-2.0
+..
+.. Unless required by applicable law or agreed to in writing, software
+.. distributed under the License is distributed on an "AS IS" BASIS,
+.. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+.. See the License for the specific language governing permissions and
+.. limitations under the License.
+
+Virtual Tables
+--------------
+
+Apache Cassandra 4.0 implements virtual tables (`CASSANDRA-7622
+<https://issues.apache.org/jira/browse/CASSANDRA-7622>`_).
+
+Definition
+^^^^^^^^^^
+
+A virtual table is a table that is backed by an API instead of data explicitly managed and
stored as SSTables. Apache Cassandra 4.0 implements a virtual keyspace interface for virtual
tables. Virtual tables are specific to each node. 
+
+Objective
+^^^^^^^^^
+
+A virtual table could have several uses including:
+
+- Expose JMX data/metrics through CQL
+- Expose YAML configuration information
+- Expose other MBean data
 
 Review comment:
   Removed mbeans/jmx

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