Friday Sep 26, 2014

Oracle GoldenGate and Oracle Data Integrator on the Oracle BigDataLite 4.0 Virtual Machine

Oracle's big data team has just announced the Oracle BigDataLite Virtual Machine 4.0, a pre-built environment to get you started on an environment reflecting the core software of Oracle's Big Data Appliance 4.0. BigDataLite is a VirtualBox VM that contains a fully configured Cloudera Hadoop distribution CDH 5.1.2, Oracle DB 12.1.0.2.0 with Big Data SQL, Oracle's Big Data Connectors, Oracle Data Integrator 12.1.3, Oracle GoldenGate, and other software.

The demos for Oracle GoldenGate and Oracle Data Integrator show an end-to-end use case of the fictional Oracle MoviePlex on-line movie streaming company. It shows how to load data into a Data Reservoir in real-time, process and transform the data using the power of Hadoop, and utilize the data on an Oracle data warehouse, either by loading the data with Oracle Loader for Hadoop or by using Hive tables within Oracle SQL queries with Oracle Big Data SQL. 

Please follow the demo instructions to try out all these steps yourself. If you would like to build the ODI mappings from scratch, try our ODI and Big Data Hands-on Lab.  Enjoy! 

Wednesday Jul 09, 2014

ODI 11g - HDFS Files to Oracle, community post from ToadWorld

There is a new tutorial on using ODI to move HDFS files into an Oracle database using OLH-OSCH from Deepak Vohra on the ToadWorld blog. This article covers all the setup required in great detail and will be very helpful if you're planning on integrating with HDFS files.

http://www.toadworld.com/platforms/oracle/w/wiki/10957.integrating-hdfs-file-data-with-oracle-database-11g-in-oracle-data-integrator-11g.aspx

Thursday Jul 03, 2014

ODI 11g - Hive to Oracle with OLH-OSCH, community post from ToadWorld

There is a new blog post on using ODI to move data from Hive to Oracle using OLH-OSCH from Deepak Vohra on the ToadWorld blog. It covers everything from install to all the configuration of paths and configurations files. So if you are going down this route it's worth checking it out, he goes into great detail into everything that needs done and setup.

http://www.toadworld.com/platforms/oracle/w/wiki/10955.integrating-apache-hive-table-data-with-oracle-database-11g-in-oracle-data-integrator-11g.aspx

Big thanks to Deepak for sharing his experiences and providing the blog to get folk up and running. 

Friday Dec 28, 2012

ODI - Reverse Engineering Hive Tables

ODI can reverse engineer Hive tables via the standard reverse engineer and also an RKM to reverse engineer tables defined in Hive, this makes it very easy to capture table designs in ODI from Hive for integrating. To illustrate I will use the movie lens data set which is a common data set used in Hadoop training.

I have defined 2 tables in Hive for movies and their ratings as below, one file has fields delimited with '|' the other is tab delimited. 

  1. create table movies (movie_id int, movie_name string, release_date string, vid_release_date string,imdb_url string) row format delimited fields terminated by '|';
  2. create table movie_ratings (user_id string, movie_id string, rating float, tmstmp string) row format delimited fields terminated by '\t';

For this example I have loaded the Hive tables manually from my local filesystem (into Hive/HDFS) using the following LOAD DATA Hive commands and the movie lens data set mentioned earlier; 

  1. load data local inpath '/home/oracle/data/u.item' OVERWRITE INTO TABLE movies;
  2. load data local inpath '/home/oracle/data/u.data' OVERWRITE INTO TABLE movie_ratings;

The data set in the file u.item data file looks like the following with '|' delimiter;

  • 1|Toy Story (1995)|01-Jan-1995||http://us.imdb.com/M/title-exact?Toy%20Story%20(1995)|0|0|0|1|1|1|0|0|0|0|0|0|0|0|0|0|0|0|0
  • 2|GoldenEye (1995)|01-Jan-1995||http://us.imdb.com/M/title-exact?GoldenEye%20(1995)|0|1|1|0|0|0|0|0|0|0|0|0|0|0|0|0|1|0|0
  • 3|Four Rooms (1995)|01-Jan-1995||http://us.imdb.com/M/title-exact?Four%20Rooms%20(1995)|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|1|0|0

In ODI I can define my Hive data server and logical schema, here is the JDBC connection for my Hive database (I just used the default);

I can then define my model and perform a selective reverse using standard ODI functionality, below I am reversing just the movies table and the movie ratings table;

I

After the reverse is complete, the tables will appear in the model in the tree, the data can be inspected just like regular datastores;

From here we see the data in the regular data view;

The ODI RKM for Hive performs logging that is useful in debugging if you hit issues with the reverse engineer. This is a very basic example of how some of the capabilities hang together, ODI can also be used to design the load of the file into Hive, transformations within it and subsequent loads using Oracle Loader for Hadoop into Oracle and on and on.

Wednesday Aug 01, 2012

ODI 11g - Hadoop integration self study

There is a self study available at the link below which is a great introduction to the Hadoop related integration available in ODI 11.1.1.6 (see earlier blog here). Thanks to the curriculum development group for creating this material. You can see from the study how ODI was extended to support integration in and out of the Hadoop ecosystem.

https://apex.oracle.com/pls/apex/f?p=44785:24:0::NO:24:P24_CONTENT_ID,P24_PREV_PAGE:6130,29

The paper here titled 'High Performance Connectors for Load and Access of Data from Hadoop to Oracle  Database' which describes the raw capabilities in the Oracle Loader for Hadoop and Oracle Direct Connector for HDFS is encapsulated in the HDFS File/Hive to Oracle KM, so the different options for loading described in the paper are modeled as capabilities of the Knowledge Module. Another great illustration of the capabilities of KMs.

Much more to come in this space... 

Wednesday Mar 28, 2012

New Feature in ODI 11.1.1.6: ODI for Big Data

By Ananth Tirupattur

Starting with Oracle Data Integrator 11.1.1.6.0, ODI is offering a solution to process Big Data. This post provides an overview of this feature.

Before getting into the details of ODI for Big Data and with all the buzz around Big Data, I will provide a brief introduction to Big Data and Oracle Solution for Big Data.

[Read More]
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