No more Big Data Hacking—Time for a Complete ETL Solution with Oracle Data Integrator 12c

info@rittmanmead.com www.rittmanmead.com @rittmanmead
Jerome Francoisse | Oracle OpenWorld 2015
No Big Data Hacking—Time for a Complete ETL Solution
with Oracle Data Integrator 12c
1

Jérôme Françoisse
• Consultant for Rittman Mead

‣ Oracle BI/DW Architect/Analyst/Developer

• ODI Trainer

• Providing ODI support on OTN Forums

• ODI 12c Beta Program Member

• Blogger at http://www.rittmanmead.com/blog/

• Email : jerome.francoisse@rittmanmead.com

• Twitter : @JeromeFr
2

About Rittman Mead
3
• World’s leading specialist partner for technical
excellence, solutions delivery and innovation in
Oracle Data Integration, Business Intelligence,
Analytics and Big Data
• Providing our customers targeted expertise; we are a
company that doesn’t try to do everything… only
what we excel at
• 70+ consultants worldwide including 1 Oracle ACE
Director and 3 Oracle ACEs
• Founded on the values of collaboration, learning,
integrity and getting things done
Optimizing your investment in Oracle Data Integration
• Comprehensive service portfolio designed to
support the full lifecycle of any analytics solution

User Engagement
4
Visual Redesign Business User Training
Ongoing SupportEngagement Toolkit
Average user adoption for BI
platforms is below 25%
Rittman Mead’s User Engagement Service can help

The Oracle BI, DW and Big Data Product Architecture
5

The place of Big Data in the Reference Architecture
6

Hive
• SQL Interface over HDFS

• Set-based transformation

• SerDe to map complex file structure
7

HiveQL
CREATE TABLE apachelog (
host STRING,
identity STRING,
user STRING,
time STRING,
request STRING,
status STRING,
size STRING,
referer STRING,
agent STRING)
ROW FORMAT SERDE 'org.apache.hadoop.hive.contrib.serde2.RegexSerDe'
WITH SERDEPROPERTIES (
"input.regex" = "([^ ]*) ([^ ]*) ([^ ]*) (-|[[^]]*]) ([^ "]*|"[^"]*") (-|[0-9]*) (-|[0-9]*)(?: ([^ "]*|
"[^"]*") ([^ "]*|"[^"]*"))?",
"output.format.string" = "%1$s %2$s %3$s %4$s %5$s %6$s %7$s %8$s %9$s"
)
STORED AS TEXTFILE;
LOAD DATA INPATH '/user/jfrancoi/apache_data/FlumeData.1412752921353' OVERWRITE INTO TABLE apachelog;
8

Pig
9
• Dataflow language

• Pipeline of transformations

• Can benefit from UDF

Pig Latin
register /opt/cloudera/parcels/CDH/lib/pig/piggybank.jar
raw_logs = LOAD '/user/mrittman/rm_logs' USING TextLoader AS (line:chararray);
logs_base = FOREACH raw_logs
GENERATE FLATTEN
(REGEX_EXTRACT_ALL(line,'^(S+) (S+) (S+) [([w:/]+s[+-]d{4})] "(.+?)" (S+) (S+) "([^"]*)"
"([^"]*)"')
)AS
(remoteAddr: chararray, remoteLogname: chararray, user: chararray,time: chararray, request: chararray, status:
chararray, bytes_string: chararray,referrer:chararray,browser: chararray);
logs_base_nobots = FILTER logs_base BY NOT (browser matches '.*(spider|robot|bot|slurp|bot|monitis|Baiduspider|
AhrefsBot|EasouSpider|HTTrack|Uptime|FeedFetcher|dummy).*');
logs_base_page = FOREACH logs_base_nobots GENERATE SUBSTRING(time,0,2) as day, SUBSTRING(time,3,6) as month,
SUBSTRING(time,7,11) as year, FLATTEN(STRSPLIT(request,' ',5)) AS (method:chararray, request_page:chararray,
protocol:chararray), remoteAddr, status;
logs_base_page_cleaned = FILTER logs_base_page BY NOT (SUBSTRING(request_page,0,3) == '/wp' or request_page == '/'
or SUBSTRING(request_page,0,7) == '/files/' or SUBSTRING(request_page,0,12) == '/favicon.ico');
logs_base_page_cleaned_by_page = GROUP logs_base_page_cleaned BY request_page;
page_count = FOREACH logs_base_page_cleaned_by_page GENERATE FLATTEN(group) as request_page,
COUNT(logs_base_page_cleaned) as hits;
page_count_sorted = ORDER page_count BY hits DESC;
page_count_top_10 = LIMIT page_count_sorted 10;
10

Spark
11
• Open-source Computing framework

• Dataflow processes

• RDDs

• in-Memory

• Scala, Python or Java

Spark
package com.cloudera.analyzeblog
import org.apache.spark.SparkConf
import org.apache.spark.SparkContext
import org.apache.spark.SparkContext._
import org.apache.spark.sql.SQLContext
(…)
def main(args: Array[String]) {
val sc = new SparkContext(new
SparkConf().setAppName("analyzeBlog"))
val sqlContext = new SQLContext(sc)
import sqlContext._
val raw_logs = "/user/mrittman/rm_logs"
//val rowRegex = """^([0-9.]+)s([w.-]+)
s([w.-]+)s([[^[]]+])s"((?:[^"]|")
+)"s(d{3})s(d+|-)s"((?:[^"]|")+)"s"((?:
[^"]|")+)"$""".r
val rowRegex = """^([d.]+) (S+) (S+) [([w
d:/]+s[+-]d{4})] "(.+?)" (d{3}) ([d-]+)
"([^"]+)" "([^"]+)".*""".r
val logs_base = sc.textFile(raw_logs) flatMap {
case rowRegex(host,
identity, user, time, request, status, size,
referer, agent) =>
Seq(accessLogRow(host, identity, user, time,
request, status, size, referer, agent))
case _ => Nil
}
val logs_base_nobots = logs_base.filter( r => !
r.request.matches(".*(spider|robot|bot|slurp|
bot|monitis|Baiduspider|AhrefsBot|EasouSpider|
HTTrack|Uptime|FeedFetcher|dummy).*"))
val logs_base_page = logs_base_nobots.map { r
=>
val request = getRequestUrl(r.request)
val request_formatted = if
(request.charAt(request.length-1).toString ==
"/") request else request.concat("/")
(r.host, request_formatted, r.status,
r.agent)
}
val logs_base_page_schemaRDD =
logs_base_page.map(p => pageRow(p._1, p._2,
p._3, p._4))
logs_base_page_schemaRDD.registerAsTable("logs_
base_page")
val page_count = sql("SELECT request_page,
count(*) as hits FROM logs_base_page GROUP BY
request_page").registerAsTable("page_count")
val postsLocation = "/user/mrittman/posts.psv"
val posts =
sc.textFile(postsLocation).map{ line =>
val cols=line.split('|')
postRow(cols(0),cols(1),cols(2),cols(3),cols(4)
,cols(5),cols(6).concat("/"))
}
posts.registerAsTable("posts")
val pages_and_posts_details = sql("SELECT
p.request_page, p.hits, ps.title, ps.author
FROM page_count p JOIN posts ps ON
p.request_page = ps.generated_url ORDER BY hits
DESC LIMIT 10")
pages_and_posts_details.saveAsTextFile("/user/
mrittman/top_10_pages_and_author4")
}
}
12

How it’s done
• A few experts writing code

• Hard to maintain

• No Governance

• New tools every month
13

Déjà vu?
DECLARE
CURSOR c1 IS
SELECT account_id, oper_type, new_value FROM action
ORDER BY time_tag
FOR UPDATE OF status;
BEGIN
FOR acct IN c1 LOOP -- process each row one at a time
acct.oper_type := upper(acct.oper_type);
IF acct.oper_type = 'U' THEN
UPDATE accounts SET bal = acct.new_value
WHERE account_id = acct.account_id;
IF SQL%NOTFOUND THEN -- account didn't exist. Create it.
INSERT INTO accounts
VALUES (acct.account_id, acct.new_value);
UPDATE action SET status =
'Update: ID not found. Value inserted.'
WHERE CURRENT OF c1;
ELSE
UPDATE action SET status = 'Update: Success.'
END IF;
ELSIF acct.oper_type = 'I' THEN
BEGIN
INSERT INTO accounts
VALUES (acct.account_id, acct.new_value);
UPDATE action set status = 'Insert: Success.'
EXCEPTION
WHEN DUP_VAL_ON_INDEX THEN -- account already exists
UPDATE accounts SET bal = acct.new_value
'Insert: Acct exists. Updated instead.'
END;
ELSIF acct.oper_type = 'D' THEN
DELETE FROM accounts
IF SQL%NOTFOUND THEN -- account didn't exist.
UPDATE action SET status = 'Delete: ID not found.'
ELSE
UPDATE action SET status = 'Delete: Success.'
END IF;
ELSE -- oper_type is invalid
'Invalid operation. No action taken.'
END IF;
END LOOP;
COMMIT;
END;
14
source : docs.oracle.com

Moved to ETL Solutions
15

Can we do that for Big Data?
16

• Yes! ODI provides an excellent framework for running Hadoop ETL
jobs

- ODI uses all the natives technologies, by pushing down the
transformations to Hadoop
16

jobs

• Hive, Pig, Spark, HBase, Sqoop and OLH/OSCH KMs provide
native Hadoop loading / transformation - Requires BigData Option
16

jobs

• Hive, Pig, Spark, HBase, Sqoop and OLH/OSCH KMs provide
native Hadoop loading / transformation - Requires BigData Option
• Also benefits from everything else in ODI

- Orchestration and Monitoring
- Data firewall and Error handling
16

17
Files - Logs
NoSQL 
Database
OLTP 
Database
Files 
API 
Flume 
Sqoop
ODI
Hive 
HBase 
HDFS
Hive 
HBase 
HDFS
Enterprise 
DWH
BigData SQL 
OLH/OSCH 
Sqoop

Import Hive Table Metadata into ODI Repository
• Connections to Hive, Hadoop (and Pig) set up earlier

• Define physical and logical schemas, reverse-engineer the
table definitions into repository

- Can be temperamental with tables using non-standard SerDes;
make sure JARs registered
18
1
2
3

Demo - Logical - Business Rules
19

Demo - Hive Physical Mapping
20

HiveQL
INSERT INTO TABLE default.movie_rating
SELECT
MOVIE.movie_id movie_id ,
MOVIE.title title ,
MOVIE.year year ,
ROUND(MOVIEAPP_LOG_ODISTAGE_1.rating) avg_rating
FROM
default.movie MOVIE JOIN (
SELECT
AVG(MOVIEAPP_LOG_ODISTAGE.rating) rating ,
MOVIEAPP_LOG_ODISTAGE.movieid movieid
FROM
default.movieapp_log_odistage MOVIEAPP_LOG_ODISTAGE
WHERE
(MOVIEAPP_LOG_ODISTAGE.activity = 1
)
GROUP BY
MOVIEAPP_LOG_ODISTAGE.movieid
) MOVIEAPP_LOG_ODISTAGE_1
ON MOVIE.movie_id = MOVIEAPP_LOG_ODISTAGE_1.movieid
21

Demo - Pig Physical Mapping
22

Pig
MOVIE = load 'default.movie' using org.apache.hive.hcatalog.pig.HCatLoader as
(movie_id:int, title:chararray, year:int, budget:int, gross:int,
plot_summary:chararray);
MOVIEAPP_LOG_ODISTAGE = load 'default.movieapp_log_odistage' using
org.apache.hive.hcatalog.pig.HCatLoader as (custid:int, movieid:int, genreid:int,
time:chararray, recommended:int, activity:int, rating:int, sales:float);
FILTER0 = filter MOVIEAPP_LOG_ODISTAGE by activity == 1;
AGGREGATE = foreach FILTER0 generate movieid as movieid, rating as rating;
AGGREGATE = group AGGREGATE by movieid;
AGGREGATE = foreach AGGREGATE generate
group as movieid,
AVG($1.rating) as rating;
JOIN0 = join MOVIE by movie_id, AGGREGATE by movieid;
JOIN0 = foreach JOIN0 generate
MOVIE::movie_id as movie_id, MOVIE::title as title, MOVIE::year as year,
ROUND(AGGREGATE::rating) as avg_rating;
store JOIN0 into 'default.movie_rating' using org.apache.hive.hcatalog.pig.HCatStorer;
23

Demo - Spark Physical Mapping
24

pySpark
OdiOutFile -FILE=/tmp/
C___Calc_Ratings__Hive___Pig___Spark_.py -
CHARSET_ENCODING=UTF-8
# -*- coding: utf-8 -*-
from pyspark import SparkContext, SparkConf
from pyspark.sql import *
config =
SparkConf().setAppName("C___Calc_Ratings__Hive_
__Pig___Spark_").setMaster("yarn-client")
sc = SparkContext(conf = config)
sqlContext = SQLContext(sc)
sparkVersion = reduce(lambda sum, elem: sum*10
+ elem, map(lambda x: int(x) if x.isdigit()
else 0, sc.version.strip().split('.')), 0)
import sys
from datetime import *
hiveCtx = HiveContext(sc)
def convertRowToDict(row):
ret = {}
for num in range(0, len(row.__FIELDS__)) :
ret[row.__FIELDS__[num]] = row[num]
return ret
from pyspark_ext import *
#Local defs
#Replace None RDD element to new defined
'NoneRddElement' object, which overload the []
operator.
#For example, MOV["MOVIE_ID"] return None
rather than TypeError: 'NoneType' object is
unsubscriptable when MOV is none RDD element.
def convert_to_none(x):
return NoneRddElement() if x is None else x
#Transform RDD element from dict to tuple to
support RDD subtraction.
#For example (MOV, (RAT, LAN)) transform to
(tuple(sorted(MOV.items())),
(tuple(sorted(RAT.items())),tuple(sorted(LAN.it
ems())))
def dict2Tuple(t):
return tuple(map(dict2Tuple, t)) if
isinstance(t, (list, tuple)) else
tuple(sorted(t.items()))
#reverse dict2Tuple(t)
def tuple2Dict(t):
return dict((x,y) for x,y in t) if not
isinstance(t[0][0], (list, tuple)) else
tuple(map(tuple2Dict, t))
from operator import is_not
from functools import partial
def SUM(x): return sum(filter(None,x));
def MAX(x): return max(x);
def MIN(x): return min(x);
def AVG(x): return None if COUNT(x) == 0 else
SUM(x)/COUNT(x);
def COUNT(x): return len(filter(partial(is_not,
None),x));
def safeAggregate(x,y): return None if not y
else x(y);
def getValue(type,value,format='%Y-%m-%d'):
try:
if type is date:
return
datetime.strptime(value,format).date()
else: return type(value)
except ValueError:return None;
def getScaledValue(scale, value):
try: return '' if value is None else
('%0.'+ str(scale) +'f')%float(value);
except ValueError:return '';
def getStrValue(value, format='%Y-%m-%d'):
if value is None : return ''
if isinstance(value, date): return
value.strftime(format)
if isinstance(value, str): return
unicode(value, 'utf-8')
if isinstance(value, unicode) : return value
try: return unicode(value)
25

pySpark
OdiOSCommand "-OUT_FILE=/tmp/
C___Calc_Ratings__Hive___Pig___Spark_.out" "-ERR_FILE=/tmp/
C___Calc_Ratings__Hive___Pig___Spark_.err" "-WORKING_DIR=/tmp"
/usr/lib/spark/bin/spark-submit --master yarn-client /tmp/
C___Calc_Ratings__Hive___Pig___Spark_.py --py-files /tmp/
pyspark_ext.py --executor-memory 1G --driver-cores 1 --
executor-cores 1 --num-executors 2
26

27
Files - Logs
NoSQL 
Database
OLTP 
Database
Files 
API 
Flume 
Sqoop
ODI
Hive 
HBase 
HDFS
Hive 
HBase 
HDFS
Enterprise 
DWH
BigData SQL 
OLH/OSCH 
Sqoop

Oozie
28
• workflow scheduler system to manage Apache Hadoop jobs

• execution, scheduling, monitoring

• integrated in hadoop ecosystem

• no additional footprint

• Limitation - No Load Plans

HDFS
29

30
Files - Logs
NoSQL 
Database
OLTP 
Database
Files 
API 
Flume 
Sqoop
ODI
Hive 
HBase 
HDFS
Hive 
HBase 
HDFS
Enterprise 
DWH
BigData SQL 
OLH/OSCH 
Sqoop

Oracle Big Data SQL
31
• Gives us the ability to easily bring in Hadoop (Hive) data into
Oracle-based mappings

• Oracle SQL to transform and join in Hive

• Faster access to Hive data for real-time ETL scenarios

Oracle Big Data SQL
32

Supplement with Oracle Reference Data - SQOOP
• Mapping physical details specify Sqoop KM for extract
(LKM SQL to Hive Sqoop)

• IKM Hive Append used for join and load into Hive target
33

Supplement with Oracle Reference Data - SQOOP
33

34
Files - Logs
NoSQL 
Database
OLTP 
Database
Files 
API 
Flume 
Sqoop
ODI
Hive 
HBase 
HDFS
Hive 
HBase 
HDFS
Enterprise 
DWH
BigData SQL 
OLH/OSCH 
Sqoop

Missing?
35
• Streaming Capabilities

• Spark Streaming

• Kafka

Further Reading / Testing
36
• http://www.rittmanmead.com/2015/04/odi12c-advanced-
big-data-option-overview-install/

• http://www.rittmanmead.com/2015/04/so-whats-the-real-
point-of-odi12c-for-big-data-generating-pig-and-spark-
mappings/

• Oracle BigData Lite VM - 4.2.1

Questions?
37

Questions?
38
• Blogs:

- www.rittmanmead.com/blog
• Contact:

- info@rittmanmead.com
- jerome.francoisse@rittmanmead.com
• Twitter

- @rittmanmead
- @JeromeFr

Rittman Mead Sessions
39
No Big Data Hacking—Time for a Complete ETL
Solution with Oracle Data Integrator 12c
[UGF5827]
Jérôme Françoisse | Sunday, Oct 25, 8:00am |
Moscone South 301

Empowering Users: Oracle Business Intelligence
Enterprise Edition 12c Visual Analyzer [UGF5481]
Edelweiss Kammermann | Sunday, Oct 25, 10:00am
| Moscone West 3011

A Walk Through the Kimball ETL Subsystems
with Oracle Data Integration Solutions [UGF6311]
Michael Rainey | Sunday, Oct 25, 12:00pm |
Moscone South 301
Oracle Business Intelligence Cloud Service—
Moving Your Complete BI Platform to the Cloud
[UGF4906]
Mark Rittman | Sunday, Oct 25, 2:30pm | Moscone
South 301

Oracle Data Integration Product Family: a
Cornerstone for Big Data [CON9609]
Mark Rittman | Wednesday, Oct 28, 12:15pm |
Moscone West 2022

Developer Best Practices for Oracle Data
Integrator Lifecycle Management [CON9611]
Jérôme Françoisse | Thursday, Oct 29, 2:30 pm |
Moscone West 2022

No more Big Data Hacking—Time for a Complete ETL Solution with Oracle Data Integrator 12c

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