Roman Shaposhnik of Cloudera and the Apache Software Foundation talks on "Delopying Hadoop-Based Bigdata Environments: [Tall] Tales from the Frontier" at Puppet Camp Silicon Valley 2012.

1. Deploying Hadoop-Based Bigdata
Environments
Click to edit Master subtitle style
“[Tall] Tales From The Frontier”
Roman Shaposhnik
rvs@apache.org, Cloudera Inc.

2. $ whoami
 An open source software developer
 Linux kernel, C/C++ compilers, FFmpeg, Plan9
 A Hadoop and all around UNIX guy
 root@cloudera
 Member of the “Kitchen” team
 Apache Software Foundation Incubator PMC
 [Bigtop], Hadoop Development Tools, Celix, Helix
 VP of Apache Bigtop
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3. ZooKeeper (coordination)
HUE (web based UI)
Pig (DQL) Hive (SQL) Impala (SQL)
HBase YARN/MR1 Oozie
HDFS (filesystem)
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4. ZooKeeper (coordination)
HUE (web based UI)
Pig (DQL) Hive (SQL) Impala (SQL)
HBase YARN/MR1 Oozie
HDFS (filesystem)
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5. It is a jungle out there
 Zookeeper  Sqoop  JDK/JRE
 Hadoop  Oozie  Kerberos
 HDFS  Whirr  Ganglia
 YARN  Mahout  Nagios
 MR1  Flume  JSVC
 HTTPFS  Giraph  Tomcat
 HBase  Hama  Utils
 Pig  Hue  Postgress
 Hive  Solr  HTTPD
 Impala  Crunch
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6. And the answer is:
Puppet[forge]
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7. One way of using Apache software
$ wget http://apache.org/httpd.tar.gz
$ tar xzvf httpd.tar.gz
$ cd httpd
$ ./configure ; make
$ make install
ERROR: can't write to /usr/local/bin
$ sudo make install
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8. A different way
$ sudo apt-get install httpd
Would you like to also upgrade your conf?
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9. Is there apt-get install hadoop ?
 Hadoop is still in a very active development
 Hadoop is Java based
 Hadoop is a distributed application
 Hadoop is way more than HDFS + MR
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10. Project-by-project approach
 “Passively” maintained code
 Packaging, OS-level (init.d)
 Developer-centric view
 Edit-compile-debug cycle vs. deployment
 Lack of integration testing
 Differences in distributions/packaging:
 Where is this valid: /usr/libexec ?
 Combinatoric explosion of dependencies
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11. Dependencies Inferno:
Hive 0.8.1
HBase
Hbase (0.92, 0.90)
HBase
HBase
Hadoop (1.0, 0.22, 0.23)
A million dollar question:
$ tar xzvf hive-0.8.1.tar.gz
$ ls hive-0.8.1/lib
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12. Dependencies Inferno:
Hive 0.8.1
HBase
Hbase (0.92, 0.90)
HBase
HBase
Hadoop (1.0, 0.22, 0.23)
A million dollar question:
$ tar xzvf hive-0.8.1.tar.gz
$ ls hive-0.8.1/lib
hbase-0.89.jar log4j-1.2.15.jar log4j-1.2.16.jar
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13. Remember what Debian did to Linux?
GNU Software Linux kernel
Linux kernel
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14. Bigtop is trying to do it with Hadoop
Hadoop Ecosystem Hadoop
Linux kernel
(Pig, Hive, Mahout) (HDFS + MR)
CDH4 beta 1
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15. What's there in Bigtop
 Build/Packaging infrastructure
 RPM, DEB, (tarballs, homebrew/MacPorts)
 VirtualBox, VMWare and KVM VMs
 Fedora, OpenSUSE, Mageia, CentOS, Ubuntu
 Puppet deployment infrastrucutre
 Integration test infrastrucutre (iTest)
 Bigtop Jenkins:
 http://bigtop01.cloudera.org:8080
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16. And the answer is:
Puppet[Bigtop]
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17. System software deployment
 Packages vs. Puppet code
 package/file/service
 What is packaging?
 dependency tracking
 build encapsulation
 java packaging
 file layout
 user creation
 service registration 17

18. Does it really work?
 Java packaging
 maven/ivy integration
 file layout
 side-by-side installations of the same package
 user creation
 LDAP/AD provisioning
 service registration
 start on install vs. start on reboot
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19. Petascale distributed systems
 Scale
 Yahoo! ~5000 nodes
 Deployment orchestration
 Kerberos::Host_keytab <| title == "hdfs" |> ->
Service["hadoop-hdfs-datanode"]
 Highly coordinated distributed system
 It ain't HTTPD/loadbalancer
 Rolling upgrades/asynchronous rollbacks
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20. Back to tarballs and shell?
 What's better for Puppet: fpm or rpm?
 What is the role of Puppet?
 coordinating the entire system: lack of DSL
 converging an isolated node: will it ever work?
 a building block for an agent-based system
 One agent to rule them all?
 there's no spoon^H^H^H^H^H^ agent: Whirr
 MCollective
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 Cloudera Manager, Ambari

21. Evolution, not perfection!
 Minimalistic, highly consistent packages
 /usr/lib/hadoop, /etc/hadoop/conf (alternative)
 fail gracefully: .... || : )
 Java packaging is not solved [yet]: symlinks
 Minimalistic Puppet code
 package/file/service
 masterless (most of the time)
 integration with Whirr
 BoxGrinder 21

22. The road ahead
 New kind of configuration management
 /etc/hadoop vs Zookeeper
 New kinds of system packaging
 Parcels (tarballs + metadata)
 HPS (Hadoop Packaging System)
 Orchestration: to puppet or not to puppet?
 Cloudera Manager
 Apache Ambari (incubating)
 Reactor 8: http://reactor8.com 22

23. Java Packaging
 Fate of Java
 OpenJDK
 OSGi
 Hadoop's view: MAPREDUCE-1700
https://issues.apache.org/jira/browse/MAPREDUCE-1700
 Project Jigsaw
 Language tie-ins? Really?
 Linux vendors getting their act together
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24. Integration testing
 Clean room provisioning
 Those ain't unit tests – they trash the system
 Cluster topology and cluster state discovery
 How can puppet help us?
 Cluster state manipulation
 Test-driven orchestration
 Chaos Monkey
 How to be successful in OS co-opetition
 Make everything pluggable (and subvert ;-)) 24

25. Anatomy of iTest
 Versioned, JVM-based test/data artifacts
 Dependency between test artifacts
 Matching stack of integration tests
 Implementation
 Maven artifacts, pom files
 JUnit test-execution entry point
 Groovy for scripting
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26. Who's the target audience
 End users
 YOU!
 ASF Projects/Bigdata developers
 from Avro to Zookeeper
 Bigdata solutions vendors
 Cloudera, EMC, Hortonworks, Karmasphere
 DevOPs
 Ebay, Yahoo, Facebook, LinkedIn
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27. Who's on-board?
 Cloudera
 CDH4 is 100% based on Bigtop (hadoop v2)
 Available @cloudera.com
 Canonical
 Ubuntu Server: Hadoop and Bigdata blueprint
https://blueprints.launchpad.net/ubuntu/+spec/servercloud-p-hdp-hadoop
 TrendMicro
 Hortonworks (partially)
 EMC, EBay (early stages of prototyping) 27

28. What's happening?
 A special release: Bigtop 0.3.0-incubating
 Hadoop 1.0.1
 Last stable release: Bigtop 0.5.0
 Hadoop 2.0.2-alpha
 Next stable release: Bigtop 0.6.0
 End of Mar 2013 release
 Hadoop 2.0.3-beta
 Major focus on developers
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29. What Bigtop needs from you?
 More of you!
 Meetup: “Silicon Valley Hands-on Programming”
http://www.meetup.com/HandsOnProgrammingEvents/
 More infrastructure for build/test
 EC2, Supercell, EMC magic cluster, CloudStack
 More integration tests
 Convince your bosses to commit to Bigtop
 Validate upstream release using Bigtop
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30. Contact
§
Bigtop home @Apache:
•
http://incubator.apache.org/bigtop/
§
Hangout places:
•
{dev,user}@bigtop.apache.org
•
#bigtop on Freenode
§
Roman Shaposhnik
•
rvs@apache.org, rvs@cloudera.com
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