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Presto Assignment Help


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What is Presto?


1) Cross platform query capability, not only SQL on Hadoop

2) Distributed under the Apache license, now supported by Teradata

3) Open source distributed SQL query engine

            - Originally developed by facebook

            - ANSI SQL compliant

            - Like Hive, It's not a database

4) Pluggable architecture: Hive, cassandra, kafka etc


PrestoHistroy:

Presto History


Features:

  1.  Low Latency
  2.  High performance
  3.  Concurrency
  4.  Data conversion
  5.  Efficient CPU usage
  6.  Connectors to external data sources
  7.  5x-20x faster compared to Hive
  8.  Works well with ORC
  9.  Parquet related enhancement are in works
  10.  Good tool for interactive discovery


Comparision between Hive, Impala and presto:



Hive
Presto
Impala
Year
2007
Developing
2012
Original developer
Facebook
Facebook
Clouders
Computation approach
MapReduce
MPP
Massively parallel processing(MPP)   architecture
Main purpose
Data warehouse
RDBMS
Enable analysis and data scientists to   directly interact with any data stored in Hadoop
Performance
Low
Fast
Fast
Latency
High
Low latency
Low latency
Language
SQL like script
ANSI 92 SQL support with user defined   function
ANSI 92 SQL support with user define   functions
Interface
CLI Web, ODBC, JDBC
JDBC
ODBC, JDBC, impala-shell, web
Replication
yes
unknown
Supported between two CDH5 clusters


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