Orchestrating HBase Cluster Deployment with Ironfan and Chef

Orchestrating Clusterswith Ironfan and Chef Robert J. Berger - CTO Runa, Inc. rberger@runa.com

Hassles of Big Data Stack Deployments• Lots of Moving Parts • Hadoop/HBase just one sub-system • Heterogeneous Tech • Monitoring & Metrics Everywhere • Details obscure the big picture• Need repeatability & variations on themes

The Forest for the Trees

ForestDash App Monitorboard ServersElastic Hadoop AMQPSearch M/RSession HBase MySQL Store

MySQL Slave Slave Slave Slave Master GDash Statsd Sensu Slave Logstash Slave Ganglia Slave Monitoring Graphite Slave Web Slave Regionsrvr Slave Regionsrvr Slave Hadoop M/R Slave RegionsrvrTrees Sec Master Regionsrvr Master Regionsrvr Regionsrvr Clj App Regionsrvr Clj App Regionsrvr Clj App Regionsrvr App Servers Web Rabbit Regionsrvr Web Rabbit AMQP Regionsrvr ELB HB Master HBase HB Master ZooKeeper ZooKeeper ZooKeeper ES Server ES Server Rails App ES Server Search Elastic Dashboard Rails App ES Server Web Redis Redis Session Store Redis

LeavesDashboard App Servers Monitoring Nginx MySQL Client Elastic Load Balancer MySQL Client Nginx Ganglia Server Reverse Proxy Upstart Config Nginx Upstart Config Reverse Proxy Ganglia Web Unicorn Logstash Client Reverse Proxy Logstash Client Java Statsd Server Rails Swarmiji Leiningen Graphite Server Dashboard App Java Jark Grpahite Web Java Leiningen Postfix Python Postfix Jark Cron jobs Logstash Cron jobs Clojure Apps Sensu Server MySQL Client Sensu client HBase Client Sensu Web Upstart Config Sensu plugins Postfix Sensu Client Logstash Client Cron jobs Sensu Plugins Sensu client Sensu pluginsElastic Search AMQP Hadoop M/R Elastic Search Server RabbitMQ Namenode Java RabbitMQ Plugins Secondary Namenode Cron jobs Cluster Config Tasktracker Sensu client Erlang Jobtrackers Sensu plugins Cron jobs Bootstrap Namenmode Upstart Config Sensu client Java Sensu plugins JMX Upstart Config Cron jobs Sensu client Sensu plugins Ganglia Client Upstart ConfigSession Store HBase MySQLRedis Namenode Zookeeper MySQL MasterCron jobs Secondary Namenode HBase Master MySQL SlavesSensu client Tasktracker Regionserver Cluster SetupSensu plugins Jobtrackers Cron jobsUpstart Config Datanodes Sensu client Bootstrap Namenmode Sensu plugins Java Upstart Config JMX Cron jobs Sensu client Sensu plugins Ganglia Client Upstart Config

Molecules<configuration> <property> <name>hbase.rootdir</name> <value>hdfs://ip-10-19-65-58.ec2.internal:8020/hadoop/hbase</value> <description>The directory shared by region servers. Should be fully-qualified to include the filesystem to use. E.g: hdfs://NAMENODE_SERVER:PORT/HBASE_ROOTDIR </description> </property> <property> <name>hbase.cluster.distributed</name> <value>true</value> <description>The mode the cluster will be in. Possible values are false: standalone and pseudo-distributed setups with managed Zookeeper true: fully-distributed with unmanaged Zookeeper Quorum (see hbase-env.sh) </description> </property> <property> <name>hbase.zookeeper.quorum</name> <value>master.example.com,region0.example.com,region1.example.com</value> <description>Comma separated list of servers in the ZooKeeper Quorum. For example, "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com". By default this is set to localhost for local and pseudo-distributed modes of operation. For a fully-distributed setup, this should be set to a full list of ZooKeeper quorum servers. If HBASE_MANAGES_ZK is set in hbase-env.sh this is the list of servers which we will start/stop ZooKeeper on. </description> </property>

Conﬁg Management: Leaves & Molecules• Chef, Puppet, Cfengine• Much better than shell scripts or cli jocks• Infrastructure as code• Still No Forest Perspective

Ironfan: Forest, Trees, Leaves and Molecules• Open Source Project from Infochimps• Builds on top of Chef• Cluster Description in Single File • Your System Diagram Come to Life• Components announce capabilities • Service Discovery automates interconnects• Knife (CLI) extension controls cluster and component life-cycles

Basic ChefCommunity + Own Chef Server Cookbooks Search Auth & ACLs Nodes Roles / Cookbooks Data Bags Attributes N N N Chef Knife: Upload Cookboks to Chef Server N Launch Instances / Bootstrap Servers VMs and/or Servers Running Chef-Client Chef Development Host

Chef + IronfanCommunity + Own Chef Server Cookbooks Search Auth & ACLs Nodes Roles / Cookbooks Data Bags Attributes N N N Chef Knife + Ironfan Gem: Launch / Bootstrap / Manage N Whole Clusters, All Facets or Speciﬁc Instances VMs and/or Servers Running Chef-Client Chef Development Host

Ironfan Pantry + Chef + IronfanCommunity + Own Chef Server Cookbooks Search / Search Auth & Discovery ACLs Nodes Nodes Attributes Roles / Cookbooks Data Bags Attributes Discovery N N N Chef Knife + Ironfan Gem: Launch / Bootstrap / Manage N Whole Clusters, All Facets or Speciﬁc Instances VMs and/or Servers Running Chef-Client Chef Development Host

Ironfan Components• Ironfan Gem: • Knife Plugins to orchestrate clusters • Logic to sync Chef Server & Cloud[s]• Silverware: Coordinate Discovery of Services• Ironfan-Homebase: Ironfan tuned Chef-Repo• Ironfan-Pantry: Cookbooks tuned for Clusters• Ironfan-CI: Testing of Ironfan clusters and Cookbooks

Cluster Conﬁg: Forest View ClusterChef.cluster base0-cluster0 do Global setup_role_implications cloud :ec2 doCloud & Cluster region us-east-1 Conﬁgs availability_zones [us-east-1b] backing ebs image_name natty security_group(cluster_root) do authorize_port_range(22) end end role "base_role" role "chef_client" role "base0-cluster0" role "production" role "runastack" role "ebs_volumes_attach" Roles & Recipes role "ebs_volumes_mount" are the “Leaves” Facets are facet master do the “Trees” instances 1 cloud.image_id ami-93c31afa cloud.flavor "cc1.4xlarge" role "big_package" role "hadoop_master" role "hbase_master" recipe "cluster_chef::cluster_webfront" recipe "hbase::utils" recipe "route53::runa" role "monitored_client" end

Global Cloud & Recipe Confgs ClusterChef.cluster base0-cluster0 do setup_role_implications Cluster Name cloud :ec2 doCloud region us-east-1Conﬁgs availability_zones [us-east-1b] backing ebs Conﬁgure image_name natty Security security_group(cluster_root) do Group authorize_port_range(22) end endShared role "base_role" Roles role "chef_client" role "base0-cluster0" role "production" role "runastack" role "ebs_volumes_attach" role "ebs_volumes_mount"

Facet Name Facets add Speciﬁcs facet master do Number of Cloud instances 1 CopiesOverrides cloud.image_id ami-93c31afa cloud.flavor "cc1.4xlarge" role "hadoop_master" Facet role "hbase_master" Roles & recipe "cluster_chef::cluster_webfront" recipe "hbase::utils" Recipes recipe "route53::runa" role "monitored_client"Facet Name end Number of Cloud facet regionserver do instances 7 CopiesOverrides cloud.image_id ami-93c31afa cloud.flavor "cc1.4xlarge" role "hadoop_slave" role "hbase_regionserver" FacetMake one recipe "hbase::utils" Roles &instance recipe "route53::runa" role "monitored_client" Recipes special server 0 do role "zookeeper_server" end end

Facets Composed of Components• Components are Services • Nginx, MySQL server, Zookeeper, HBMaster, Namenode, etc.• Chef Cookbooks manage components• Ironfan Silverware for service discovery • Auto-Connects components together

Silverware: Service Discovery• Announcements enable Service Discovery• Implemented using Chef Node Attributes • DSL for Chef Attributes• Components announce Services & Amenities • Enables zero-conf for things like Logging, Ports, Dashboard sources, etc.• Announcements effectively deﬁne a components Contract or API

Silverware Service Discovery• Recipe that creates a service , announces itannounce(:hadoop, :namenode)• Recipe that requires a service , discovers ithbase_config = Mash.new({ :namenode_fqdn => discover(:hadoop, :namenode ).private_hostname), :jobtracker_addr => discover(:hadoop, :jobtracker).private_ip), :zookeeper_addrs =>discover_all(:zookeeper, :server).map(&:private_ip).sort, :ganglia => discover(:ganglia, :server), :ganglia_addr => discover(:ganglia, :server).private_hostname), :private_ip => private_ip_of(node) })

Silverware: Announce Capabilities• Goes beyond basic component discovery• Capabilities • Serve webpages, execute script, send metrics, answer queries• Aspects • Ports, daemons, logs, ﬁles, dashboards

Aspects enable Zeroconf Amenities• A log aspect would enable the following amenities • logrotated to manage its logs • flume to archive logs to a location• A port aspect would enable • Configuration of firewall • Monitoring of port uptime & latency • Remote checks that firewalled ports do NOT respond

Knife Cluster: Lifecycle Management• A Plugin for Opscode Chef Knife• Deployment & Lifecycle Operations: • launch, bootstrap, kill, start, stop• Access and Chef Operations • ssh, kick, proxy• Utilities • show, sync

Knife Launch Cluster, Facet or Instance[s]• Launch cluster launchcluster knife all the nodes in a base0-master0• Launchcluster launch base0-master0 facet 0 knife just a single instance of a single master• Launchclusterinstances base0-master0 regionserver knife all the launch of a facet

Stop/Start Cluster, Facet or Instance[s]• Stop whole cluster base0-master0 knife cluster stop• Stop a cluster stop base0-master0 master 0 knife single instance of a single facet• Stop allcluster stop abase0-master0 regionserver knife instances of facet

Same Knife Command to Launch Vagrant[s]• Can use the same cluster conﬁgurations and knife command to launch Vagrants knife cluster vagrant up base0-master0• Still Experimental

Ironfan-CI• Jenkins based Continuous Integration of Clusters• Still Experimental• Uses Discovery to automate baseline test creation• Leverages Vagrant to create clean test environments

References• Basic Chef Stuff: http://wiki.opscode.com/display/chef/Home• Ironfan Screencast: http://vimeo.com/37279372• Ironfan Wiki for the most complete info : https://github.com/infochimps-labs/ironfan/wiki• The Forest for the Trees Photo - Ame Otoko http://www.ﬂickr.com/photos/ameotoko/5383225925/

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Orchestrating HBase Cluster Deployment with Ironfan and Chef

by Robert Berger on May 22, 2012

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Orchestrating HBase Cluster Deployment with Ironfan and Chef Presentation Transcript