hbase vs impala

Editorial information provided by DB-Engines
Name	HBase  X	Impala  X
Description	Wide-column store based on Apache Hadoop and on concepts of BigTable	Analytic DBMS for Hadoop
Database model	Wide column store	Relational DBMS
DB-Engines Ranking  Trend Chart	Score 58.47 Rank #15   Overall #2   Wide column stores	Score 11.23 Rank #32   Overall #20   Relational DBMS
Website	hbase.apache.org	www.cloudera.com/­content/­www/­en-us/­products/­apache-hadoop/­impala.html
Technical documentation	hbase.apache.org	www.cloudera.com/­content/­www/­en-us/­documentation/­enterprise/­latest/­topics/­impala.html
Developer	Apache Software Foundation	Cloudera
Initial release	2008
Current release	1.2.5, March 2017	2.7.0
License	Open Source	Open Source
Cloud-based	no	no
Implementation language	Java	C++
Server operating systems	Linux Unix Windows	Linux
Data scheme	schema-free	yes
Typing	no	yes
XML support	no	no
Secondary indexes	no	yes
SQL	no	no
APIs and other access methods	Java API RESTful HTTP API Thrift	JDBC ODBC
Supported programming languages	C C# C++ Groovy Java PHP Python Scala	All languages supporting JDBC/ODBC
Server-side scripts	yes	yes
Triggers	yes	no
Partitioning methods	Sharding	Sharding
Replication methods	selectable replication factor	selectable replication factor
MapReduce	yes	yes
Consistency concepts	Immediate Consistency	Eventual Consistency
Foreign keys	no	no
Transaction concepts	no	no
Concurrency	yes	yes
Durability	yes	yes
In-memory capabilities	no	no
User concepts	Access Control Lists (ACL)	Access rights for users, groups and roles

출처 : https://db-engines.com/en/system/HBase%3bImpala